An overvoltage protection of power supply unit is shown in the figure with a regulated 5V output. As the zener diode detects a surpassed voltage beyond its limit, the circuit will get affected in a ...

This 3V to 24 volt variable-regulated power supply can be adjusted from 3 to 25 volts and is current limited to 2 amps as shown, but may be increased to 3 amps or more by selecting a smaller current ...