The electric car's headlights are not on, but the horn is ringing. There is a 60V voltage at one of the two control circuits on the headlight circuit board, and the normal state of the circuit is 0V a
Now the project needs a DCDC step-down chip that can reduce 18V to 12V and output current up to 3A, and the peripheral circuit is required to be relatively simple. Now I use LM2576-12, but this chip g
I don't know if the description in the title is accurate. For example, there is a microphone. The normal output signal is 1V. When there is sound, it fluctuates up and down. In general, a resistor wil