4answers

[PCB Design] Does the circuit board need to add a voltage stabilizing circuit if it is powered through the computer's USB port?

The circuit board I made is powered by the USB port of the computer. I feel that the voltage should be relatively stable. Is it necessary to add a voltage regulator circuit? I wanted to add a 7805 thr...
4answers

[PCB Design] Best way to make a break-off section of PCB

I want to make a PCB as one design, but with a part as a 'break-off' section - see the picture with the large slot near the top of the board. The board measures about 130 x 100mm overall.Is th...
1answers

[PCB] Aluminium pcb 2 layer though holes

Hello, I need to make a small 2 layer pcb for a led out of aluminium. On the pcb are 2 through holes for soldering wires (+ and -). Is it possible to have through holes on a alumium pcb or will t...
  • answered Jan 17,2022
    by EJG
3answers

[Components] What is the input voltage requirements for control part?

Hi,I want to know if a ESP32 can be used to contro a 12V motor using this board. ESp32 uses 3.3V signal.
0answers

[PCB] repeater question

Is there any further documentation on repeater controler and how it works?
4answers

[PCB] What design techniques should be paid attention to when designing DC motor drive PCB?

In order to implement a successful PCB design using motor driver ICs, the PCB must be carefully laid out. Can you provide some practical suggestions, hoping to help PCB design to achieve the good elec...
2answers

[PCB] Why is it recommended to lay copper on the break-away rail on the panel PCB board?

I designed a panel pcb board, but the edge rail without copper, I sometimes receive EQ suggestion edge rail for copper,Is there anything special about it?
3answers

[PCB] How to wash the circuit board?

I always use washing water for washing. I changed N types. Basically, all of them are whitish. Moreover, after washing the boards, they don’t look good before washing. How do you guys wash them? How a...
6answers
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