Dc Over Voltage Protection Circuit. A simple crowbar circuit is depicted below. In this project we will build a simple yet effective overvoltage protection circuit using a fuse and a zener diode as the protecting elements that will work for electronics that operate with dc voltage.
The circuit has a few components it is very easy to build and will protect your electric equipment againg overvoltages. Power supply electronics overview linear power supply switch mode power supply over voltage protection psu specs digital power power management bus. The circuit protects the dc motor from over voltage and under voltage.
So it helps to protect the circuit damage by the high voltage.
Power supply over voltage protection is really useful some psu failures can put damaging large voltages on the equipment. Circuit above will protect your circuit device at vo by blowing the fuse in case of an over voltage condition. Over voltage protection prevents this happening on both linear regulators and switch mode power supplies. It serves to reduce the pressure remaining 12 volts through a d1 d4 connected to direct rectifier bridge circuit.
