Lm358 Low Voltage Cutoff Circuit

This voltage sensor circuit can be used to protects any appliance to voltage fluctuation.

Lm358 low voltage cutoff circuit.

In a printed circuit board operating in a still air ambient. 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. 3 tested 220v high and low voltage cut off circuits using ic 324 and transistors. In high and low voltage protection circuit we have used an lm358 op amp which has two outputs connected to 2 and 3 number pins of pic microcontroller.

Applications of lm358 ic lm358 ic based dark sensor circuit. O p voltage swing is large. May be i connect something wrong. When the input dc from the sensor is less than zener voltage the output of the op amp is low and vice versa.

Sensing voltage derived through the 10 k pre set is given to the non inverting ve terminal and this sets the high level cut. And a voltage divider is used to divide voltage and connects its output at 4th number pin of pic microcontroller. Over voltage and under voltage protection circuit for high and low voltage cutoff. This dark sensor ic lm358 circuit is used to test a light dependent resistor a photo diode and a photo transistor.

The power supply voltage and differential i p voltages are similar. The dissipation is the total of both amplifiers use external resistors where possible to allow the amplifier to saturate or to reduce the power which is dissipated. Hi swagatam i have made schematic in multisim and simulate it but it cannot simulate as i intend. But you need to change a photo diode and the photo transistor in place.