PCB

  • Twenty switching kinds of power supply PCB topologies (1)

    Twenty switching kinds of power supply PCB topologies (1)

    Table of content 1. Comparison of 20 switching power supply PCB topologies 2. Basic pulse width modulation waveform 3. Buck 4. Boost 5. Buck-Boost   What is topology? Circuit topology is the connection mode of power devices and electromagnetic components in the circuit. The design of magnetic com...
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  • Common appearance defects and solutions of PCB copper clad laminates and bonding sheet(4)

    Common appearance defects and solutions of PCB copper clad laminates and bonding sheet(4)

    Common defects and solutions of epoxy glass cloth based bonding sheet 6) Exposure pattern The main reason for the exposed pattern is that the resin content of the adhesive sheet is too small. If the copper foil is pressed close to the PCB copper clad laminate, the obvious pattern will be seen fr...
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  • What principles should be followed for pcb copy board

    What principles should be followed for pcb copy board

    Abstract: PCB copying is a very tedious task. If you are not careful, mistakes will be copied and the circuit board can no longer be used. So, what are the principles to be followed in the process of PCB copying?Here are some tips when pcb copy board. Table of content 1. Choose the appropriate pr...
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  • What are the different classifications of PCB boards?

    What are the different classifications of PCB boards?

    Abstract:PCB board is the base material, which is finally composed of copper foil and P sheet (bonding sheet), because these two substances have many classifications due to different applications. The following are some basic classifications of pcb boards. Table of content 1.The resin adhesive us...
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  • Some tips to improve the heat dissipation of PCB for LED display

    Some tips to improve the heat dissipation of PCB for LED display

    Abstract: LEDs can be seen everywhere, so what are the techniques for heat dissipation? In practical applications, increasing the heat dissipation of the PCB for LED display not only effectively improves the efficiency of the heat dissipation of the LED display, but also saves power, and is more ...
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  • Why is halogen-free PCB required now?

    Why is halogen-free PCB required now?

    Abstract: Halogen-free PCB means that the substrate used is made of halogen-free raw materials, and the produced PCB board is called halogen-free PCB board. Halogen-free board is an environmentally friendly material. The following Kingford introduces in detail what halogen-free PCB is.   Content:...
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  • Introduction to cleaning PCBs method [Practical articles]

    Introduction to cleaning PCBs method [Practical articles]

    Abstract: After the PCBA processing process is completed, it is often seen that there will be many residues on the surface of the PCBA. These residues not only affect the appearance but also affect the quality of the PCBA. Therefore, cleaning PCBs is very important. Next, I will introduce the man...
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  • What are the factors that cause PCB to dump copper?

    What are the factors that cause PCB to dump copper?

    Abstract: The copper wire of the PCB falls off is one of the common problems in PCB board manufacturing. Knowing the reasons for this phenomenon will help reduce the occurrence of such problems in the later period. PCB circuit board manufacturer Kingford will introduce the common causes of the co...
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  • What is the difference between reflow soldering and wave soldering?

    What is the difference between reflow soldering and wave soldering?

    Abstract: In PCBA processing, two common soldering methods are the Reflow soldering process and the Wave soldering process. So in PCBA processing, what is the role of reflow soldering, what is the role of wave soldering, and what is the difference between them?   table of Contents: 1. Introd...
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  • How to detect faults on PCB board?

    How to detect faults on PCB board?

    Abstract: The methods of checking PCB board failures include measuring voltage, signal injection methods, etc., using circuit debugging steps to find the point of failure, and then correct it and restore it to normal.   table of Contents: 1. The method to find the fault 2. The specific steps of ...
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  • The main ingredients and characteristics of Solder paste on PCB.

    The main ingredients and characteristics of Solder paste on PCB.

    Abstract: Solder paste is a new type of soldering material that came into being with SMT, and it is a paste-like mixture. Mainly used in the SMT industry to weld PCB surface resistance, capacitors, ICs, and other electronic components.   table of Contents: 1. The composition and function of ...
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  • What are the applications of the light-emitting diode in PCB electronic components?

    What are the applications of the light-emitting diode in PCB electronic components?

     Abstract: With the rapid progress of LED technology in the 1990s, the application of light-emitting diodes in PCB electronic components has become more and more widespread. Not only is the luminous efficiency surpassing incandescent lamps, the light intensity reaches the candlelight level, and t...
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