Ask you, if I want to use single chip microcomputer (5 v power supply) control of two way power supply switch is closed, how the voltage of the relay is needed

CodePudding user response:

The output power

CodePudding user response:

Relay drive with triode, it is ok to use your 5 v, you check the relay drive circuit, by the way, had better add a diode multiple protection

CodePudding user response:

You won't be the relay as the switch tube?

CodePudding user response:

Specific circuit can reference I upload the circuit principle diagram of the simulation

CodePudding user response:

MCU I/O current is too small, don't drive relay, need a power supply with an external triple tube to control relay on and off,

CodePudding user response:

Learning to watch, silent down,

CodePudding user response:

Reference, know