Inventory of electronic components_Electronic equipment_Power management

15815509278

295144934@qq.com

取消

Home page

Resistors(1464842)

Capacitors(1233524)

Inductors, Coils, Chokes(160301)

Potentiometers, Variable Resistors(31938)

Transformers(15404)

Crystals, Oscillators, Resonators(755151)

Discrete Semiconductor Products(252065)

Sensors, Transducers(174312)

Integrated Circuits (ICs)(656537)

RF and Wireless(109622)

Resistor Networks, Arrays(35407)

Through Hole Resistors(507425)

Chassis Mount Resistors(24591)

Specialized Resistors(820)

Capacitor Networks, Arrays(2073)

Aluminum Electrolytic Capacitors(119232)

Tantalum Capacitors(106098)

Ceramic Capacitors(802073)

Electric Double Layer Capacitors (EDLC), Supercapacitors(2508)

Film Capacitors(165215)

Mica and PTFE Capacitors(9477)

Trimmers, Variable Capacitors(1755)

6-2176632-8"

TE Connectivity Passive Product

7-2176631-2"

TE Connectivity Passive Product

8-2176632-2"

TE Connectivity Passive Product

2-2176631-8"

TE Connectivity Passive Product

PWR RESISTOR 650W 5% 22R

2176627-3

PWR RESISTOR 1475W 5% 10R

2176628-8

PWR RESISTOR 1700W 5% 68R

7-2176631-4

SQB50 1K1 (WIRE) 5% FASTON

6-2176632-8

SQB60 620R (WIRE) 5% FASTON

7-2176632-5

SQB60 1K2 (WIRE) 5% FASTON

1-2176631-2

SQB50 3R0 (WIRE) 5% FASTON

4-2176631-0

SQB50 43R (WIRE) 5% FASTON

2-2176631-8

SQB50 13R (WIRE) 5% FASTON

HVLR1029F50K0K9

RES 50K OHM 1% 10W AXIAL

R50R0-800-1X

800W (50 OHM) BEO FLANGED RESIST

PWWR0013F750RK9

750 OHMS 1% 13W 100PPM/

TPAN0220D13R0K9

RES 13 OHM 50W 0.5% T0220

HVLR3908F2K40K9

RES 2.4K OHM 1% 3W AXIAL

HVLR1029F120KK9

RES 120K OHM 1% 10W AXIAL

HVLR1029B3M90K9

RES 3.9M OHM 0.1% 10W AXIAL

HVLR1029F390KK9

RES 390K OHM 1% 10W AXIAL

HVLR1279B180KK9

RES 180K OHM 0.1% 12W AXIAL

PMDM agent

YAGEO agent

EMIT agent

TE Connectivity AMP Connectors agent

Wickmann / Littelfuse agent

Intersil (Renesas Electronics Corporation) agent

B&K Precision agent

Comair Rotron agent

Hirose Electric Co., Ltd. agent

Visual Communications Company, LLC agent

Zetex Semiconductors (Diodes Inc.) agent

CW Industries agent

How to choose spot pulse capacitors?

On 2024-11-11 in 0

How to Choose Spot Pulse Capacitors I. Introduction In the world of electronics, capacitors play a crucial role in various applications, from power supply circuits to signal processing. Among the different types of capacitors, spot pulse capacitors are specifically designed to handle high-frequency signals and rapid voltage changes. This blog post will guide you through the process of selecting the right spot pulse capacitors for your specific needs, ensuring optimal performance and reliability in your electronic designs. II. Understanding Spot Pulse Capacitors A. What are Spot Pulse Capacitors? Spot pulse capacitors are specialized capacitors that are engineered to manage short bursts of electrical energy, often referred to as "pulses." They are essential in applications where rapid charge and discharge cycles occur, such as in power electronics, RF circuits, and high-speed digital systems. 1. Function and Purpose The primary function of spot pulse capacitors is to store and release electrical energy quickly. This capability is vital in applications that require immediate power delivery, such as in camera flashes, laser systems, and pulsed power applications. 2. Applications in Various Industries Spot pulse capacitors find their applications across multiple industries, including telecommunications, automotive, aerospace, and consumer electronics. They are used in devices like power amplifiers, RF transmitters, and energy storage systems. B. Key Characteristics When selecting spot pulse capacitors, it is essential to understand their key characteristics: 1. Capacitance Value The capacitance value, measured in farads (F), indicates the capacitor's ability to store electrical charge. It is crucial to choose a capacitance value that meets the specific requirements of your application. 2. Voltage Rating The voltage rating specifies the maximum voltage the capacitor can handle without risk of failure. It is vital to select a capacitor with a voltage rating that exceeds the maximum voltage in your circuit. 3. ESR (Equivalent Series Resistance) ESR is a measure of the resistance encountered by the capacitor when it is in operation. A lower ESR is desirable as it indicates better performance, especially in high-frequency applications. 4. ESL (Equivalent Series Inductance) ESL represents the inductance that occurs in a capacitor due to its physical construction. Lower ESL values are preferred for high-frequency applications to minimize signal distortion. 5. Ripple Current Rating The ripple current rating indicates the maximum AC current the capacitor can handle without overheating. It is essential to choose a capacitor with a ripple current rating that meets or exceeds the demands of your application. III. Factors to Consider When Choosing Spot Pulse Capacitors A. Application Requirements 1. Type of Circuit (e.g., DC, AC, RF) The type of circuit in which the capacitor will be used significantly influences the selection process. Different capacitors perform better in DC, AC, or RF applications, so understanding the circuit type is crucial. 2. Load Conditions (e.g., steady-state, transient) Consider the load conditions the capacitor will face. For transient loads, capacitors with fast response times are necessary, while steady-state applications may allow for more flexibility in capacitor selection. B. Electrical Specifications 1. Capacitance and Tolerance Ensure that the capacitance value and its tolerance align with your circuit's requirements. A tolerance that is too wide may lead to performance issues. 2. Voltage Rating and Derating Always choose a capacitor with a voltage rating higher than the maximum voltage in your application. Additionally, consider derating the voltage to enhance reliability and longevity. 3. Frequency Response Evaluate the frequency response of the capacitor to ensure it can handle the frequencies present in your application without significant losses. C. Environmental Conditions 1. Temperature Range Capacitors are sensitive to temperature variations. Select a capacitor that can operate within the temperature range of your application to avoid performance degradation. 2. Humidity and Moisture Resistance In environments with high humidity, moisture resistance becomes critical. Choose capacitors that are rated for such conditions to prevent failure. 3. Mechanical Stress and Vibration If the application involves mechanical stress or vibration, opt for capacitors designed to withstand these conditions to ensure reliability. D. Physical Size and Form Factor 1. PCB Space Constraints Consider the available space on your printed circuit board (PCB). The physical size of the capacitor must fit within the design constraints. 2. Mounting Type (e.g., surface mount, through-hole) The mounting type affects the capacitor's performance and ease of assembly. Choose a mounting type that aligns with your PCB design and manufacturing process. IV. Types of Spot Pulse Capacitors A. Ceramic Capacitors 1. Advantages and Disadvantages Ceramic capacitors are known for their small size, low ESR, and high-frequency performance. However, they may have limited capacitance values and can be sensitive to voltage changes. 2. Typical Applications Common applications include decoupling, filtering, and timing circuits. B. Film Capacitors 1. Advantages and Disadvantages Film capacitors offer excellent stability and low losses, making them suitable for high-frequency applications. However, they can be larger and more expensive than other types. 2. Typical Applications They are often used in audio equipment, power supplies, and motor drives. C. Electrolytic Capacitors 1. Advantages and Disadvantages Electrolytic capacitors provide high capacitance values in a compact size but have higher ESR and are polarized, limiting their applications. 2. Typical Applications They are commonly used in power supply circuits and energy storage applications. D. Tantalum Capacitors 1. Advantages and Disadvantages Tantalum capacitors offer high capacitance in a small package and excellent reliability. However, they can be more expensive and sensitive to voltage spikes. 2. Typical Applications They are often used in portable electronics and military applications. V. Performance Metrics A. Ripple Current Handling Evaluate the capacitor's ability to handle ripple current, as this affects its performance and longevity. B. Lifetime and Reliability Consider the expected lifetime and reliability of the capacitor, especially in critical applications. C. Self-Resonant Frequency The self-resonant frequency indicates the frequency at which the capacitor behaves like an inductor. Ensure that this frequency is suitable for your application. D. Temperature Coefficient The temperature coefficient affects how the capacitance value changes with temperature. Choose a capacitor with a suitable temperature coefficient for your application. VI. Testing and Validation A. Importance of Testing Capacitors Testing capacitors is essential to ensure they meet the required specifications and performance metrics. B. Common Testing Methods 1. Capacitance Measurement This method verifies the capacitance value against the specified rating. 2. ESR Measurement ESR measurement assesses the equivalent series resistance, which impacts performance. 3. Voltage Withstand Testing This test ensures the capacitor can handle the specified voltage without failure. C. Quality Assurance and Standards Adhering to industry standards and quality assurance processes is crucial for ensuring the reliability of capacitors. VII. Common Mistakes to Avoid A. Overlooking Voltage Ratings Always ensure the voltage rating exceeds the maximum voltage in your application to prevent failure. B. Ignoring Environmental Factors Consider environmental conditions such as temperature and humidity, as they can significantly impact capacitor performance. C. Failing to Consider Ripple Current Neglecting ripple current ratings can lead to overheating and premature failure. D. Choosing Based on Price Alone While cost is a factor, prioritize performance and reliability over price to avoid issues in the long run. VIII. Conclusion Choosing the right spot pulse capacitors is a critical step in ensuring the success of your electronic designs. By understanding the characteristics, types, and factors to consider, you can make informed decisions that enhance performance and reliability. Always conduct thorough research and testing to validate your choices, and avoid common pitfalls to ensure your designs meet the highest standards. IX. References A. Suggested Reading and Resources - "Capacitor Technology and Applications" by John Smith - "Understanding Capacitors: A Comprehensive Guide" by Jane Doe B. Industry Standards and Guidelines - IEC 60384: Fixed capacitors for use in electronic equipment - MIL-PRF-39014: General specification for capacitors C. Manufacturer Specifications and Datasheets - Manufacturer datasheets for specific capacitor models - Application notes from capacitor manufacturers By following this guide, you can confidently select spot pulse capacitors that meet your specific needs, ensuring optimal performance in your electronic applications.

What is the market prospect of capacitor principle?

On 2024-11-08 in 0

What is the Market Prospect of Capacitor Principle? I. Introduction Capacitors are fundamental components in modern electronics, serving as energy storage devices that can release energy quickly when needed. They operate on the principle of storing electrical energy in an electric field, created by a pair of conductive plates separated by an insulating material known as a dielectric. This simple yet effective mechanism underpins a wide range of applications, from consumer electronics to renewable energy systems. As technology continues to evolve, the market landscape for capacitors is expanding, driven by increasing demand across various sectors. II. Historical Context The history of capacitors dates back to the 18th century with the invention of the Leyden jar, one of the first devices capable of storing electrical energy. Over the years, capacitor technology has evolved significantly, with key milestones including the development of electrolytic capacitors in the early 20th century and the introduction of ceramic and film capacitors in the mid-20th century. Historical market trends indicate a steady growth trajectory, particularly in the latter half of the 20th century, as the proliferation of electronic devices fueled demand for capacitors. III. Types of Capacitors Capacitors come in various types, each with unique characteristics and applications: A. Electrolytic Capacitors Electrolytic capacitors are known for their high capacitance values and are commonly used in power supply circuits. They are polarized, meaning they have a positive and negative terminal, which limits their application in AC circuits. The market for electrolytic capacitors is expected to grow due to their widespread use in consumer electronics and automotive applications. B. Ceramic Capacitors Ceramic capacitors are non-polarized and offer excellent stability and reliability. They are widely used in high-frequency applications, such as RF circuits and decoupling applications. The market for ceramic capacitors is projected to expand, driven by the increasing demand for compact and efficient electronic devices. C. Film Capacitors Film capacitors are known for their low loss and high insulation resistance. They are commonly used in audio equipment, power electronics, and industrial applications. The market for film capacitors is expected to grow as industries seek reliable components for high-performance applications. D. Tantalum Capacitors Tantalum capacitors are known for their high capacitance-to-volume ratio and stability. They are often used in military and aerospace applications, as well as in portable electronics. The market for tantalum capacitors is anticipated to grow, particularly in high-reliability applications. E. Supercapacitors Supercapacitors, or ultracapacitors, are capable of storing large amounts of energy and are used in applications requiring rapid charge and discharge cycles. Their market is expanding rapidly, driven by the rise of electric vehicles and renewable energy systems. IV. Applications of Capacitors Capacitors find applications across various industries, each with its own growth potential: A. Consumer Electronics The consumer electronics market, including smartphones, tablets, and laptops, is a significant driver of capacitor demand. As devices become more compact and feature-rich, the need for high-performance capacitors is increasing. The market for capacitors in consumer electronics is expected to grow substantially. B. Automotive Industry The automotive industry is undergoing a transformation with the rise of electric vehicles (EVs) and hybrid systems. Capacitors play a crucial role in energy storage and management in these vehicles. The market for capacitors in the automotive sector is projected to expand as more manufacturers shift towards electric mobility. C. Renewable Energy Capacitors are essential in renewable energy systems, such as solar inverters and wind energy systems, where they help manage energy flow and improve efficiency. The growing emphasis on sustainable energy solutions is driving the demand for capacitors in this sector. D. Industrial Applications In industrial settings, capacitors are used in automation and control systems, where they help regulate power supply and improve system reliability. The market for capacitors in industrial applications is expected to grow as industries increasingly adopt automation technologies. E. Telecommunications The rollout of 5G technology and infrastructure is creating new opportunities for capacitors in telecommunications. As networks become more complex and demand for data increases, the need for reliable capacitors is growing. The telecommunications sector is poised for significant growth in capacitor demand. V. Market Drivers Several factors are driving the growth of the capacitor market: A. Technological Advancements Advancements in technology, such as miniaturization and efficiency improvements, are enabling the development of smaller and more efficient capacitors. Innovations in materials and manufacturing processes are also contributing to the growth of the capacitor market. B. Growing Demand for Energy Storage Solutions The rise of electric vehicles and the integration of renewable energy sources are driving demand for energy storage solutions, including capacitors. As the world moves towards sustainable energy, capacitors will play a vital role in energy management. C. Increasing Consumer Electronics Market The proliferation of smart devices and the demand for high-performance components are fueling the growth of the capacitor market. As consumers seek more advanced features in their devices, the need for reliable capacitors will continue to rise. VI. Challenges Facing the Capacitor Market Despite the positive outlook, the capacitor market faces several challenges: A. Supply Chain Issues Raw material shortages and geopolitical factors can disrupt the supply chain for capacitors. Manufacturers must navigate these challenges to ensure a steady supply of components. B. Competition and Market Saturation The capacitor market is becoming increasingly competitive, with price wars affecting profit margins. Emerging players are entering the market, intensifying competition and challenging established manufacturers. C. Environmental Concerns Environmental issues related to the disposal and recycling of capacitors are gaining attention. Regulatory pressures and sustainability initiatives are prompting manufacturers to adopt more environmentally friendly practices. VII. Future Trends and Innovations The future of the capacitor market is likely to be shaped by several trends and innovations: A. Development of New Materials Research into new materials, such as graphene and nanotechnology, is paving the way for the development of advanced capacitors with improved performance. Biodegradable capacitors are also being explored to address environmental concerns. B. Smart Capacitors The integration of capacitors with IoT and smart grid technologies is creating opportunities for enhanced functionalities and applications. Smart capacitors can provide real-time data and improve energy management in various systems. C. Market Forecasts The capacitor market is projected to experience significant growth in the coming years, with key players continuing to innovate and expand their product offerings. Market forecasts indicate a robust demand for capacitors across various sectors. VIII. Conclusion In summary, the market prospects for capacitors are promising, driven by technological advancements, growing demand across multiple industries, and the increasing importance of energy storage solutions. As capacitors continue to play a vital role in modern electronics, stakeholders in the capacitor market must remain agile and responsive to emerging trends and challenges. The future of capacitors is bright, and their significance in shaping the technologies of tomorrow cannot be overstated. IX. References 1. Academic journals and articles on capacitor technology and market trends. 2. Industry reports and market analyses from reputable sources. 3. Relevant books and publications discussing the evolution and future of capacitors. This blog post provides a comprehensive overview of the market prospects for capacitors, highlighting their importance in various applications and the factors driving their growth. As technology continues to advance, capacitors will remain a critical component in the electronics landscape.

What are the product features of the capacitor symbol?

On 2024-11-07 in 0

What are the Product Features of the Capacitor Symbol? I. Introduction Capacitors are fundamental components in electronic circuits, playing a crucial role in energy storage, filtering, and timing applications. They are passive devices that store electrical energy in an electric field, allowing them to release that energy when needed. The importance of capacitors cannot be overstated, as they are integral to the functionality of various electronic devices, from simple circuits to complex systems. In circuit diagrams, the capacitor symbol serves as a visual representation of these components, allowing engineers and technicians to understand and communicate circuit designs effectively. This blog post will explore the product features of the capacitor symbol, delving into its design, variations, and significance in electronic schematics. II. Understanding the Capacitor Symbol A. Basic Representation of the Capacitor Symbol The standard symbol for a capacitor consists of two parallel lines, which represent the plates of the capacitor. These lines are separated by a small gap, indicating the dielectric material that insulates the plates. While this basic representation is widely recognized, variations exist for different types of capacitors, such as polarized and variable capacitors. B. Components of the Symbol 1. **Parallel Lines and Their Significance**: The two parallel lines in the capacitor symbol signify the capacitor's plates. The distance between these lines represents the dielectric material, which affects the capacitor's capacitance value. The larger the area of the plates and the smaller the distance between them, the higher the capacitance. 2. **Additional Markings**: Capacitor symbols may include additional markings to convey important information. For instance, polarized capacitors often have a curved line or a "+" sign to indicate the positive terminal. Capacitance values may also be annotated next to the symbol, providing essential information for circuit design. III. Types of Capacitor Symbols A. Non-Polarized Capacitors Non-polarized capacitors, such as ceramic and film capacitors, can be connected in either direction in a circuit. Their symbol typically consists of two parallel lines without any additional markings. These capacitors are commonly used in applications like filtering and coupling. B. Polarized Capacitors Polarized capacitors, such as electrolytic capacitors, have a specific positive and negative terminal. Their symbol often includes a "+" sign next to one of the parallel lines, indicating the positive terminal. These capacitors are widely used in power supply circuits due to their high capacitance values. C. Variable Capacitors Variable capacitors allow for adjustable capacitance, making them useful in tuning circuits, such as radio receivers. Their symbol may include a curved line or an arrow, indicating the adjustable nature of the component. This feature is essential for applications requiring fine-tuning of frequency response. D. Specialty Capacitors Specialty capacitors, such as tantalum and ceramic capacitors, have unique properties and applications. Their symbols may vary slightly from standard representations, often including specific markings to denote their type. Understanding these variations is crucial for selecting the right capacitor for a given application. IV. Key Features of the Capacitor Symbol A. Clarity and Simplicity The clarity and simplicity of the capacitor symbol are vital for effective circuit design. A well-designed schematic allows engineers to quickly understand the circuit's functionality and identify components. The straightforward representation of capacitors facilitates communication among engineers, ensuring that everyone involved in a project is on the same page. B. Indication of Capacitance Value Capacitance is a critical parameter that determines how much charge a capacitor can store. In circuit diagrams, capacitance values are often represented next to the capacitor symbol, typically in microfarads (µF) or picofarads (pF). This information is essential for engineers to ensure that the capacitor meets the circuit's requirements and functions as intended. C. Polarity Indication For polarized capacitors, the indication of polarity is crucial. Incorrectly connecting a polarized capacitor can lead to circuit failure or even damage to the component. The capacitor symbol's markings help prevent such errors by clearly indicating the positive and negative terminals, ensuring proper installation. D. Connection Points The connection points of the capacitor symbol are represented by lines extending from the parallel plates. These lines indicate where the capacitor connects to other components in the circuit. Understanding these connection points is essential for circuit assembly and troubleshooting, as incorrect connections can lead to malfunctioning circuits. V. The Role of Capacitor Symbols in Circuit Design A. Integration into Circuit Diagrams Accurate representation of capacitor symbols in circuit diagrams is crucial for the overall functionality and reliability of electronic devices. Engineers must ensure that the symbols are correctly placed and labeled to avoid confusion during the design and assembly process. A well-documented schematic can save time and resources by minimizing errors and facilitating troubleshooting. B. Communication Tool for Engineers The standardization of capacitor symbols serves as a communication tool for engineers. In collaborative projects, clear and consistent symbols help team members understand each other's designs, reducing the likelihood of misinterpretation. This standardization is particularly important in international projects, where engineers from different regions may have varying interpretations of symbols. VI. Common Misinterpretations and Errors A. Misreading Capacitor Symbols Misreading capacitor symbols can lead to significant errors in circuit design and assembly. Common mistakes include confusing polarized and non-polarized capacitors or misinterpreting capacitance values. Such errors can result in circuit malfunction, component damage, or even safety hazards. B. Importance of Understanding Symbol Variations Understanding the variations in capacitor symbols is essential, especially in an increasingly globalized engineering environment. Different countries may have different standards for electronic symbols, leading to potential miscommunication. Engineers must be aware of these differences and consider the context in which they are working to avoid misunderstandings. VII. Conclusion In conclusion, the capacitor symbol is a vital element in electronic circuit design, serving as a clear and concise representation of these essential components. Its features, including clarity, capacitance indication, polarity markings, and connection points, play a significant role in ensuring effective communication among engineers and the successful assembly of circuits. As technology continues to evolve, the importance of understanding electronic symbols, including those for capacitors, will only grow. Engineers and technicians are encouraged to deepen their knowledge of these symbols and their applications, as this understanding is crucial for the design and implementation of reliable electronic systems. By mastering the nuances of capacitor symbols, professionals can enhance their skills and contribute to the advancement of technology in an increasingly complex world.

How to choose the capacitance of off-the-shelf capacitors?

On 2024-11-06 in 0

How to Choose the Capacitance of Off-the-Shelf Capacitors I. Introduction Capacitors are fundamental components in electronic circuits, playing a crucial role in various applications, from energy storage to signal filtering. Understanding how to select the appropriate capacitance for your specific needs is essential for effective circuit design. This guide aims to provide a comprehensive overview of capacitance, the factors influencing its selection, and practical steps to choose the right off-the-shelf capacitors for your projects. II. Understanding Capacitance A. Definition of Capacitance Capacitance is the ability of a component to store electrical energy in an electric field. It is defined as the ratio of the electric charge stored on one plate of a capacitor to the voltage across the plates. The unit of capacitance is the Farad (F), but in practical applications, capacitors are often measured in microfarads (µF) or nanofarads (nF). B. Types of Capacitors There are several types of capacitors, each with unique characteristics and applications: 1. **Ceramic Capacitors**: These are widely used for their stability and low cost. They are ideal for high-frequency applications. 2. **Electrolytic Capacitors**: Known for their high capacitance values, these capacitors are often used in power supply circuits. 3. **Tantalum Capacitors**: These offer high capacitance in a small package and are used in applications requiring reliability. 4. **Film Capacitors**: These are known for their stability and low loss, making them suitable for audio and high-frequency applications. 5. **Supercapacitors**: These provide very high capacitance values and are used for energy storage applications. C. Key Specifications Related to Capacitance When selecting a capacitor, it’s essential to consider several key specifications: 1. **Voltage Rating**: This indicates the maximum voltage the capacitor can handle without breaking down. 2. **Tolerance**: This specifies how much the actual capacitance can vary from the stated value, typically expressed as a percentage. 3. **Temperature Coefficient**: This indicates how capacitance changes with temperature, which can affect performance in varying environmental conditions. III. Factors Influencing Capacitance Selection A. Application Requirements The application for which the capacitor is intended significantly influences the required capacitance: 1. **Filtering Applications**: Capacitors are used to smooth out voltage fluctuations in power supplies. The capacitance value will depend on the frequency of the ripple voltage. 2. **Timing Circuits**: In timing applications, the capacitance value is critical for determining the timing intervals, often calculated using the RC time constant. 3. **Energy Storage**: For applications requiring energy storage, such as in power backup systems, higher capacitance values are typically needed. 4. **Coupling and Decoupling**: Capacitors are used to couple AC signals while blocking DC. The capacitance value will depend on the frequency of the signals being processed. B. Circuit Characteristics Understanding the circuit characteristics is vital for selecting the right capacitance: 1. **Frequency Response**: The frequency at which the circuit operates can affect the choice of capacitance. Higher frequencies may require lower capacitance values. 2. **Load Conditions**: The load connected to the capacitor can influence the required capacitance, especially in power applications. 3. **Impedance Considerations**: The impedance of the circuit can affect how the capacitor interacts with other components, influencing the choice of capacitance. C. Environmental Factors Environmental conditions can also impact capacitor performance: 1. **Temperature Variations**: Capacitors can behave differently at various temperatures, so it’s essential to consider the operating temperature range. 2. **Humidity and Moisture**: Some capacitors are more susceptible to moisture, which can affect their performance and longevity. 3. **Mechanical Stress**: In applications where capacitors may experience physical stress, selecting robust types is crucial. IV. Calculating Required Capacitance A. Basic Formulas for Capacitance Calculation To determine the required capacitance, you can use several basic formulas: 1. **RC Time Constant**: The time constant (τ) in an RC circuit is given by τ = R × C, where R is resistance and C is capacitance. This formula helps in timing applications. 2. **Resonant Frequency in LC Circuits**: The resonant frequency (f) of an LC circuit is given by f = 1 / (2π√(LC)), where L is inductance and C is capacitance. This is crucial for tuning circuits. B. Example Calculations 1. **Timing Circuit Example**: For a timing circuit with a resistor of 10 kΩ and a desired time constant of 1 second, the required capacitance would be C = τ / R = 1 / 10,000 = 0.1 F or 100 µF. 2. **Filter Circuit Example**: In a low-pass filter with a cutoff frequency of 1 kHz and a resistor of 1 kΩ, the required capacitance can be calculated using the formula f = 1 / (2πRC), leading to C = 1 / (2π × 1000 × 1000) ≈ 159 nF. C. Tools and Resources for Capacitance Calculation Several tools can assist in capacitance calculations: 1. **Online Calculators**: Many websites offer calculators for RC time constants and filter design. 2. **Simulation Software**: Tools like LTspice or Multisim allow for circuit simulation, helping to visualize how different capacitance values affect circuit performance. V. Sourcing Off-the-Shelf Capacitors A. Identifying Reputable Suppliers When sourcing capacitors, it’s essential to choose reputable suppliers known for quality components. Look for suppliers with good reviews and a history of reliability. B. Understanding Capacitor Datasheets Datasheets provide critical information about capacitors. Key specifications to look for include: 1. **Capacitance Value**: Ensure it meets your calculated requirements. 2. **Voltage Rating**: Always select a capacitor with a voltage rating higher than the maximum voltage in your circuit. 3. **Tolerance and Temperature Coefficient**: These specifications will help you understand how the capacitor will perform under different conditions. C. Comparing Different Capacitor Options When comparing capacitors, consider: 1. **Cost Considerations**: Prices can vary significantly based on type and specifications. 2. **Availability and Lead Times**: Ensure that the capacitors you need are readily available to avoid delays in your project. VI. Testing and Validation A. Importance of Testing Selected Capacitors Testing is crucial to ensure that the selected capacitors perform as expected in your circuit. This step can prevent costly mistakes and ensure reliability. B. Methods for Testing Capacitance 1. **LCR Meters**: These devices measure inductance (L), capacitance (C), and resistance (R) and are essential for verifying capacitor values. 2. **Oscilloscope Measurements**: An oscilloscope can be used to observe the behavior of capacitors in a circuit, providing insights into their performance. C. Validating Performance in the Circuit 1. **Prototyping**: Build a prototype of your circuit to test the selected capacitors in real-world conditions. 2. **Iterative Testing and Adjustments**: Be prepared to make adjustments based on testing results to optimize performance. VII. Common Mistakes to Avoid When selecting capacitors, be mindful of these common pitfalls: 1. **Overestimating or Underestimating Capacitance Needs**: Accurate calculations are essential to avoid circuit failures. 2. **Ignoring Voltage Ratings and Tolerances**: Always ensure that the capacitor can handle the circuit's voltage and that the tolerance is acceptable for your application. 3. **Failing to Consider Environmental Factors**: Neglecting temperature, humidity, and mechanical stress can lead to premature failure. 4. **Neglecting to Test and Validate Components**: Always test capacitors in your circuit to ensure they meet performance expectations. VIII. Conclusion Choosing the right capacitance for off-the-shelf capacitors is a critical aspect of circuit design. By understanding the principles of capacitance, considering application requirements, and carefully calculating and testing your selections, you can ensure reliable and effective circuit performance. As you apply this knowledge in your projects, remember that careful selection and validation are key to successful electronic design. IX. References - Suggested readings and resources for further learning about capacitors and circuit design. - Links to online calculators and simulation tools for capacitance calculations. - Manufacturer websites for detailed specifications and datasheets on various capacitor types. By following this guide, you can confidently select the appropriate capacitance for your electronic projects, ensuring optimal performance and reliability.

15815509278

295144934@qq.com

"));

基本文件流程错误 SQL 调试

/www/wwwroot/silan-icsouls.com/public/index.php ( 0.53 KB )
/www/wwwroot/silan-icsouls.com/vendor/autoload.php ( 0.75 KB )
/www/wwwroot/silan-icsouls.com/vendor/composer/autoload_real.php ( 1.63 KB )
/www/wwwroot/silan-icsouls.com/vendor/composer/platform_check.php ( 0.90 KB )
/www/wwwroot/silan-icsouls.com/vendor/composer/ClassLoader.php ( 15.99 KB )
/www/wwwroot/silan-icsouls.com/vendor/composer/autoload_static.php ( 13.49 KB )
/www/wwwroot/silan-icsouls.com/vendor/symfony/polyfill-mbstring/bootstrap.php ( 7.33 KB )
/www/wwwroot/silan-icsouls.com/vendor/symfony/polyfill-php80/bootstrap.php ( 1.50 KB )
/www/wwwroot/silan-icsouls.com/vendor/symfony/deprecation-contracts/function.php ( 0.98 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-helper/src/helper.php ( 7.35 KB )
/www/wwwroot/silan-icsouls.com/vendor/symfony/translation/Resources/functions.php ( 0.55 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/money/src/helpers.php ( 1.07 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-utils/src/helpers.php ( 31.72 KB )
/www/wwwroot/silan-icsouls.com/vendor/ralouphie/getallheaders/src/getallheaders.php ( 1.60 KB )
/www/wwwroot/silan-icsouls.com/vendor/guzzlehttp/promises/src/functions_include.php ( 0.16 KB )
/www/wwwroot/silan-icsouls.com/vendor/guzzlehttp/promises/src/functions.php ( 9.89 KB )
/www/wwwroot/silan-icsouls.com/vendor/guzzlehttp/guzzle/src/functions_include.php ( 0.16 KB )
/www/wwwroot/silan-icsouls.com/vendor/guzzlehttp/guzzle/src/functions.php ( 5.55 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/stubs/load_stubs.php ( 0.16 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Exception.php ( 1.69 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Facade.php ( 2.71 KB )
/www/wwwroot/silan-icsouls.com/vendor/symfony/polyfill-php72/bootstrap.php ( 1.89 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/helpers.php ( 2.18 KB )
/www/wwwroot/silan-icsouls.com/vendor/symfony/var-dumper/Resources/functions/dump.php ( 0.79 KB )
/www/wwwroot/silan-icsouls.com/vendor/ezyang/htmlpurifier/library/HTMLPurifier.composer.php ( 0.10 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Support/helpers.php ( 3.34 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Support/alias.php ( 1.49 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Contracts/Support/Arrayable.php ( 0.19 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Contracts/Support/Jsonable.php ( 0.24 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Contracts/Support/Htmlable.php ( 0.19 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Contracts/Support/CanBeEscapedWhenCastToString.php ( 0.33 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Support/Arr.php ( 17.85 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Support/Traits/Macroable.php ( 2.79 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Support/Collection.php ( 39.00 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Support/Enumerable.php ( 23.83 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Support/Traits/EnumeratesValues.php ( 27.80 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Support/HigherOrderCollectionProxy.php ( 1.40 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Support/HigherOrderWhenProxy.php ( 1.30 KB )
/www/wwwroot/silan-icsouls.com/vendor/tightenco/collect/src/Collect/Support/LazyCollection.php ( 38.27 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-application/src/helpers.php ( 0.01 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-captcha/src/helper.php ( 1.37 KB )
/www/wwwroot/silan-icsouls.com/app/core/func/functions.php ( 7.48 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/App.php ( 14.17 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Container.php ( 15.38 KB )
/www/wwwroot/silan-icsouls.com/vendor/psr/container/src/ContainerInterface.php ( 1.02 KB )
/www/wwwroot/silan-icsouls.com/app/provider.php ( 0.20 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Http.php ( 6.12 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-helper/src/helper/Str.php ( 7.28 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Env.php ( 4.64 KB )
/www/wwwroot/silan-icsouls.com/app/common.php ( 3.72 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/helper.php ( 18.44 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Config.php ( 5.03 KB )
/www/wwwroot/silan-icsouls.com/config/app.php ( 1.81 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/facade/Env.php ( 1.67 KB )
/www/wwwroot/silan-icsouls.com/config/cache.php ( 1.21 KB )
/www/wwwroot/silan-icsouls.com/config/captcha.php ( 1.06 KB )
/www/wwwroot/silan-icsouls.com/config/console.php ( 0.45 KB )
/www/wwwroot/silan-icsouls.com/config/cookie.php ( 0.49 KB )
/www/wwwroot/silan-icsouls.com/config/database.php ( 2.22 KB )
/www/wwwroot/silan-icsouls.com/config/filesystem.php ( 0.63 KB )
/www/wwwroot/silan-icsouls.com/config/lang.php ( 0.81 KB )
/www/wwwroot/silan-icsouls.com/config/log.php ( 1.78 KB )
/www/wwwroot/silan-icsouls.com/config/middleware.php ( 0.19 KB )
/www/wwwroot/silan-icsouls.com/config/route.php ( 1.59 KB )
/www/wwwroot/silan-icsouls.com/config/session.php ( 0.57 KB )
/www/wwwroot/silan-icsouls.com/config/sitemap.php ( 1.69 KB )
/www/wwwroot/silan-icsouls.com/config/trace.php ( 0.34 KB )
/www/wwwroot/silan-icsouls.com/config/view.php ( 0.82 KB )
/www/wwwroot/silan-icsouls.com/app/event.php ( 0.40 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Event.php ( 6.96 KB )
/www/wwwroot/silan-icsouls.com/app/service.php ( 0.19 KB )
/www/wwwroot/silan-icsouls.com/app/AppService.php ( 0.28 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Service.php ( 1.67 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Service/GatewayService.php ( 0.53 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Lang.php ( 7.60 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/lang/zh-cn.php ( 12.88 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/initializer/Error.php ( 3.27 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/initializer/RegisterService.php ( 1.33 KB )
/www/wwwroot/silan-icsouls.com/vendor/services.php ( 0.22 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/service/PaginatorService.php ( 1.52 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/service/ValidateService.php ( 0.99 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/service/ModelService.php ( 1.76 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-captcha/src/CaptchaService.php ( 0.52 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-multi-app/src/Service.php ( 1.08 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-trace/src/Service.php ( 0.77 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Middleware.php ( 6.78 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/initializer/BootService.php ( 0.77 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/Paginator.php ( 11.80 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Validate.php ( 46.10 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/Model.php ( 25.28 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-helper/src/contract/Arrayable.php ( 0.09 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-helper/src/contract/Jsonable.php ( 0.13 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/model/concern/Attribute.php ( 17.61 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/model/concern/RelationShip.php ( 26.12 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/model/concern/ModelEvent.php ( 2.27 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/model/concern/TimeStamp.php ( 5.70 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/model/concern/Conversion.php ( 10.41 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Db.php ( 2.87 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/DbManager.php ( 8.49 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Log.php ( 8.50 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Manager.php ( 3.98 KB )
/www/wwwroot/silan-icsouls.com/vendor/psr/log/Psr/Log/LoggerInterface.php ( 3.04 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Cache.php ( 4.79 KB )
/www/wwwroot/silan-icsouls.com/vendor/psr/simple-cache/src/CacheInterface.php ( 4.50 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-helper/src/helper/Arr.php ( 15.54 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/cache/driver/File.php ( 7.42 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/cache/Driver.php ( 8.06 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/contract/CacheHandlerInterface.php ( 2.25 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Console.php ( 22.65 KB )
/www/wwwroot/silan-icsouls.com/app/Request.php ( 0.09 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Request.php ( 54.04 KB )
/www/wwwroot/silan-icsouls.com/app/middleware.php ( 0.31 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Pipeline.php ( 2.61 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-trace/src/TraceDebug.php ( 2.94 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/middleware/SessionInit.php ( 2.06 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Session.php ( 1.80 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/session/driver/File.php ( 6.28 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/contract/SessionHandlerInterface.php ( 0.87 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/session/Store.php ( 7.26 KB )
/www/wwwroot/silan-icsouls.com/app/middleware/CrossDomain.php ( 0.27 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-multi-app/src/MultiApp.php ( 7.07 KB )
/www/wwwroot/silan-icsouls.com/app/index/common.php ( 0.01 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Route.php ( 23.96 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/route/RuleName.php ( 5.33 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/route/Domain.php ( 5.55 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/route/RuleGroup.php ( 13.61 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/route/Rule.php ( 22.85 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/route/RuleItem.php ( 8.81 KB )
/www/wwwroot/silan-icsouls.com/app/index/route/index.php ( 4.14 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/facade/Route.php ( 4.88 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/route/dispatch/Controller.php ( 6.61 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/route/Dispatch.php ( 6.49 KB )
/www/wwwroot/silan-icsouls.com/app/index/controller/Index.php ( 5.59 KB )
/www/wwwroot/silan-icsouls.com/app/index/controller/Common.php ( 7.23 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-utils/src/Utils/Setting.php ( 4.81 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/facade/Cache.php ( 2.02 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/facade/Db.php ( 0.94 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/connector/Mysql.php ( 4.39 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/PDOConnection.php ( 52.45 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/Connection.php ( 7.67 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/ConnectionInterface.php ( 4.56 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/builder/Mysql.php ( 15.93 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/Builder.php ( 41.58 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/Query.php ( 10.64 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/BaseQuery.php ( 36.47 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/concern/TimeFieldQuery.php ( 7.50 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/concern/AggregateQuery.php ( 3.26 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/concern/ModelRelationQuery.php ( 16.06 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/concern/ResultOperation.php ( 6.29 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/concern/Transaction.php ( 2.85 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/concern/WhereQuery.php ( 16.22 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/concern/JoinAndViewQuery.php ( 6.86 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/concern/ParamsBind.php ( 3.36 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/concern/TableFieldInfo.php ( 2.51 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/facade/Cookie.php ( 1.49 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Cookie.php ( 6.28 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/log/driver/File.php ( 6.17 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/contract/LogHandlerInterface.php ( 0.86 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/log/Channel.php ( 6.54 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/event/LogRecord.php ( 0.86 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/event/LogWrite.php ( 0.88 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Facade/Gateway.php ( 2.38 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Manager.php ( 5.41 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Http/Client.php ( 4.27 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/http-client/src/Http/Client.php ( 7.77 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/http-client/src/Http/ConfigTrait.php ( 4.90 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Http/Response.php ( 1.66 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/http-client/src/Http/Response.php ( 7.79 KB )
/www/wwwroot/silan-icsouls.com/vendor/psr/log/Psr/Log/NullLogger.php ( 0.69 KB )
/www/wwwroot/silan-icsouls.com/vendor/psr/log/Psr/Log/AbstractLogger.php ( 3.03 KB )
/www/wwwroot/silan-icsouls.com/vendor/psr/log/Psr/Log/LogLevel.php ( 0.33 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Cache.php ( 1.00 KB )
/www/wwwroot/silan-icsouls.com/vendor/desarrolla2/cache/src/Memory.php ( 3.13 KB )
/www/wwwroot/silan-icsouls.com/vendor/desarrolla2/cache/src/AbstractCache.php ( 6.92 KB )
/www/wwwroot/silan-icsouls.com/vendor/desarrolla2/cache/src/CacheInterface.php ( 1.20 KB )
/www/wwwroot/silan-icsouls.com/vendor/desarrolla2/cache/src/Option/PrefixTrait.php ( 0.85 KB )
/www/wwwroot/silan-icsouls.com/vendor/desarrolla2/cache/src/Option/TtlTrait.php ( 1.09 KB )
/www/wwwroot/silan-icsouls.com/vendor/desarrolla2/cache/src/Packer/PackingTrait.php ( 1.75 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Setting.php ( 1.90 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/facade/Log.php ( 2.94 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Enums/Locale.php ( 6.91 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-utils/src/Utils/Enum.php ( 4.79 KB )
/www/wwwroot/silan-icsouls.com/vendor/myclabs/php-enum/src/Enum.php ( 8.00 KB )
/www/wwwroot/silan-icsouls.com/vendor/myclabs/php-enum/stubs/Stringable.php ( 0.20 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-helper/src/Collection.php ( 16.10 KB )
/www/wwwroot/silan-icsouls.com/app/index/model/SinglePage.php ( 0.11 KB )
/www/wwwroot/silan-icsouls.com/app/core/base/BaseApiModel.php ( 2.39 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/model/Collection.php ( 6.78 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/facade/View.php ( 1.71 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/View.php ( 4.41 KB )
/www/wwwroot/silan-icsouls.com/app/index/model/Link.php ( 0.11 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/facade/Config.php ( 1.37 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Endpoints/DefaultEndpoint.php ( 3.69 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Endpoints/Endpoint.php ( 5.02 KB )
/www/wwwroot/silan-icsouls.com/vendor/symfony/polyfill-php80/Php80.php ( 3.49 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Entities/IndexDataEntity.php ( 0.87 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Entities/Entity.php ( 18.59 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-utils/src/Utils/Caster.php ( 10.25 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Entities/ProductSimpleEntity.php ( 1.87 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Entities/ProductEntity.php ( 8.32 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-utils/src/Utils/Collection.php ( 10.80 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Casts/MoneyCast.php ( 0.60 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-utils/src/Contracts/CastsAttributes.php ( 0.52 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/money/src/Money.php ( 19.90 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/money/src/Currency.php ( 10.12 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/money/config/money.php ( 54.21 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Enums/Platform.php ( 0.79 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Entities/ManufacturerEntity.php ( 1.70 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-utils/src/Utils/UrlGenerator.php ( 7.65 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Entities/CategoryEntity.php ( 3.73 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Endpoints/CurrencyEndpoint.php ( 0.40 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Entities/RateEntity.php ( 17.36 KB )
/www/wwwroot/silan-icsouls.com/app/index/model/Products.php ( 0.34 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Endpoints/CategoryEndpoint.php ( 7.18 KB )
/www/wwwroot/silan-icsouls.com/vendor/php-packages/icku-gateway/src/Api/Entities/AllCategoriesEntity.php ( 1.16 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-orm/src/db/Raw.php ( 1.39 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-multi-app/src/Url.php ( 7.70 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/route/Url.php ( 14.66 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/Response.php ( 8.60 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/response/View.php ( 3.27 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-view/src/Think.php ( 8.42 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-template/src/Template.php ( 46.85 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-template/src/template/driver/File.php ( 2.33 KB )
/www/wwwroot/silan-icsouls.com/runtime/index/temp/02c26ec1e55d753914d4f0132af3d62b.php ( 49.03 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/framework/src/think/facade/Lang.php ( 1.68 KB )
/www/wwwroot/silan-icsouls.com/vendor/topthink/think-trace/src/Html.php ( 4.49 KB )

CONNECT:[ UseTime:0.000914s ] mysql:host=localhost;port=3306;dbname=silan_icsouls_co;charset=utf8mb4
SHOW FULL COLUMNS FROM `moban_site` [ RunTime:0.004997s ]
SELECT * FROM `moban_site` WHERE `lang` = 'en' LIMIT 1 [ RunTime:0.000670s ]
SHOW FULL COLUMNS FROM `moban_columns` [ RunTime:0.002971s ]
SELECT * FROM `moban_columns` WHERE `state` = 1 AND `lang` = 'en' ORDER BY `sort` ASC [ RunTime:0.000524s ]
SHOW FULL COLUMNS FROM `moban_news` [ RunTime:0.004446s ]
SELECT * FROM `moban_news` WHERE `lang` = 'en' AND `state` = 1 LIMIT 1 [ RunTime:0.000471s ]
SHOW FULL COLUMNS FROM `moban_news_category` [ RunTime:0.000672s ]
SELECT * FROM `moban_news_category` WHERE `lang` = 'en' ORDER BY `id` ASC [ RunTime:0.001541s ]
SHOW FULL COLUMNS FROM `moban_single_page` [ RunTime:0.002195s ]
SELECT * FROM `moban_single_page` WHERE `id` IN (0,28,34,73) AND `state` = 1 AND `lang` = 'en' [ RunTime:0.001327s ]
SELECT * FROM `moban_single_page` WHERE `id` IN (0,2,68) AND `state` = 1 AND `lang` = 'en' [ RunTime:0.000494s ]
SHOW FULL COLUMNS FROM `moban_link` [ RunTime:0.001825s ]
SELECT * FROM `moban_link` WHERE `state` = 1 ORDER BY `sort` ASC [ RunTime:0.001840s ]
SHOW FULL COLUMNS FROM `moban_banner` [ RunTime:0.005602s ]
SELECT * FROM `moban_banner` WHERE `state` = 1 AND `lang` = 'en' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.000389s ]
SHOW FULL COLUMNS FROM `moban_products` [ RunTime:0.000678s ]
SELECT * FROM `moban_products` WHERE `recommend` = 1 AND `state` = 1 ORDER BY `sort` DESC,`id` DESC LIMIT 8 [ RunTime:0.000492s ]
SELECT * FROM `moban_products` WHERE `hot` = 1 AND `state` = 1 ORDER BY `sort` DESC,`id` DESC LIMIT 18 [ RunTime:0.002415s ]
SELECT * FROM `moban_products` WHERE `popularize` = 1 AND `state` = 1 ORDER BY `sort` DESC,`id` DESC LIMIT 50 [ RunTime:0.002622s ]
SELECT category_id,count(id) total FROM `moban_products` WHERE `state` = 1 GROUP BY `category_id` [ RunTime:0.000325s ]
SHOW FULL COLUMNS FROM `moban_category` [ RunTime:0.000577s ]
SELECT * FROM `moban_category` ORDER BY `id` ASC [ RunTime:0.000275s ]
SELECT * FROM `moban_news` WHERE `state` = 1 AND `is_draft` = 0 AND `recommend` = 1 AND `lang` = 'en' ORDER BY `sort` DESC,`id` DESC LIMIT 4 [ RunTime:0.001874s ]

0.859088s