High/Low Voltage Cut-out Using Op-Amp 741

Various type of high low circuit can be designed using different type of IC. Here the circuit shown of high/low voltage cutout using two op-amp IC 741, with hold on facility.

circuit diagram of high low voltage cutout using 741

PARTS LIST OF HIGH/LOW VOLTAGE CUT-OUT USING OP-AMP 741

Resistor (all ¼-watt, ± 5% Carbon)
R1, R7 = 10 KΩ

R2 = 1 KΩ

R3 – R6 = 100 KΩ

R8 = 100 Ω

VR1 = 10 KΩ

Semiconductors
IC1, IC2 = 741

ZD1 = 9.1V

D1, D2, D3 = 1N4001

T1 = SL100

Miscellaneous
SW1 = ON/OFF Switch

RL1 = 16V DC,450V AC DPDT Relay

 

  • harshitha

    please explain about the project high/low voltage cutout using op-amp 741