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• How to choose a suitable power chip, do you know this?

  Archive

  1. Foreword What is a power chip? What is its function? What should be considered when choosing a power supply chip? Input voltage ramp rate, relative effect of input voltage ramp on output voltage? Let's deal with a few conceptua...

  2023-03-18【Archive】

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• Switching Power Supply PCB Design Skills

  In any switching power supply design, physical design of printed circuit board is last link. If design method is not correct, printed circuit board may emit too much electromagnetic interference, causing power supply to become uns...

  2023-03-18【Archive】

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• How did BUCK scheme come about? Application: 3 kinds of evolutionary chains

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  Baka's origins I don't want to talk more about development history of power electronics. After decades of development, from initial low efficiency and high volume linear power supply to current high frequency, small volume and hig...

  2023-03-18【Archive】

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• Power port lightning protection circuit

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  There are many factors to consider when designing a power port lightning protection circuit, including following: 1. The design of lightning protection circuit must meet requirements of given protection level, and level of residua...

  2023-03-18【Archive】

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• Does LED drive power need to be a constant current source?

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  01 Introduction There are many different specious opinions about this now. Some people say: In terms of volt-ampere characteristics of LEDs, if voltage is fixed, current is also fixed. Therefore, effect of using DC voltage and DC ...

  2023-03-18【Archive】

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• If you don't know characteristics of these 5 power amps, you are wrong...

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  Amplifier: According to different conduction methods of power amplifier tubes in power amplifiers, they can be divided into Class A (also known as Class A) power amplifiers, Class B (also known as Class B) power amplifiers, Class ...

  2023-03-18【Archive】

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• PCB design guidelines: safety regulations, layout and wiring, EMC, thermal design, process engineering.

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  Summary: Safe Distance Requirements Section Anti-interference protection, part of EMC General layout and routing Thermal Design Section Processing part Part 1 Safe Distance Requirements Section Including electrical clearance (spac...

  2023-03-18【Archive】

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• Senior EMC Engineer Resume: EMC Troubleshooting Process and Common Problems

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  EMC is mainly achieved through a comprehensive assessment of electromagnetic interference and immunity of product under test, and is one of important indicators of product quality and safety certification. Many products will be su...

  2023-03-18【Archive】

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• Do you understand MOS driver in motor controller?

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  Introduction The I/O voltage of a general purpose MCU or DSP is typically 5V to 3V, and I/O output current is below 20mA, which is not enough to directly drive a power MOSFET. Therefore, when using a general purpose MCU or DSP to ...

  2023-03-18【Archive】

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• Understanding input impedance and output impedance

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  Input impedance Input resistance (input resistance) refers to equivalent circuit input resistance. Add a voltage source U to input terminal, measure current I at input terminal, then input resistance Rin will be U/I. You can think...

  2023-03-18【Archive】

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