NE555—Electronic speed regulator

        The pwm wave is generated through ne555 to drive the mos, thereby driving the motor. At present, the board is basically normal for testing. There is a small problem at present. The direction of the potentiometer is that the duty cycle of the potentiometer decreases to the right and the duty cycle increases to the left. It is a little inconsistent with common sense. It is very simple to correct this error. You can just change the direction of the potentiometer in the schematic diagram. Also, you may not necessarily choose my potentiometer. This one is compatible with conventional delta potentiometers. Because I don’t have an oscilloscope at home on vacation, I don’t know what the frequency is. If anyone can help me test it, I would be very grateful.

       The mos tube used is LR7843. Theoretically, there is no pressure at 20a current. However, I did not open the window to tin the board. I guess 10a is the limit. I cannot test it at home. Friends are welcome to test it. The voltage is 5V-12v. Yes, it depends on the working voltage of NE555.

       If everyone likes it, I can redesign it so that he can go 20a. If you have any questions, you can leave them in the comment section and I will reply if I see them. Any suggestions are welcome, haha.