Over Under Voltage Protection Circuit Diagram

The entire circuit is powered with rectified dc supply but the regulated power is connected to timers and unregulated power is connected to potentiometers to get the variable voltage.

Over under voltage protection circuit diagram.

The under voltage and the overvoltage protection circuit is a circuit which protects you from the higher voltages and the lower voltages conditions. Protection circuits like reverse polarity protection short circuit protection and over under voltage protection are used to protect any electronic appliance or circuit from any sudden mis happening generally fuse or mcb is used for overvoltage protection here in this circuit we will build an overvoltage protection circuit without using fuse. Both the timers are configured to work as comparators i e as long as the input present at the pin2 of timer is less positive than 1 3 vcc then the. Generally fuse or mcb is used for overvoltage protection however in this project our aim is to make a circuit which can perform better than a fuse or mcb and overcome the.

Short circuit protection reverse polarity protection and over under voltage protection are some of the protection circuits that are used to protect any electronic appliance or circuit from any sudden mishappenings. This is because of the high potential. This voltage sensor circuit can be used to protects any appliance to voltage fluctuation. For the lower voltage you can see some flickers in the lights and for the higher voltage one the circuit will be fully damaged.

When the input voltage goes high then the relay will be activated and also when the input voltage is below then required level then relay activated. Over and under voltage protection circuit diagram and will be output voltage of 9 5 volts. When voltage drop down to 180 volts this voltage as above will entered to diode rectifiers d1 d4.