Sensing voltage derived through the 10 k pre set is given to the non inverting ve terminal and this sets the high level cut.
Lm358 low voltage cutoff circuit.
May be i connect something wrong.
Applications of lm358 ic lm358 ic based dark sensor circuit.
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.
Hi swagatam i have made schematic in multisim and simulate it but it cannot simulate as i intend.
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.
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.
When the input dc voltage is equal to the zener voltage the op amps output is approximately zero.
But you need to change a photo diode and the photo transistor in place.
This dark sensor ic lm358 circuit is used to test a light dependent resistor a photo diode and a photo transistor.
In a printed circuit board operating in a still air ambient.
Over voltage and under voltage protection circuit for high and low voltage cutoff.
3 tested 220v high and low voltage cut off circuits using ic 324 and transistors.
The power supply voltage and differential i p voltages are similar.
The lm258 lm258aand lm158 lm158acan be derated based on a 150 c maximum junction temperature.
You can use both ln324 or lm358 but i have shown lm358 in the diagram.
When the input dc from the sensor is less than zener voltage the output of the op amp is low and vice versa.