Power Off Delay Relay Circuit

There is a delay before the output turns off.

Power off delay relay circuit.

When the power to the circuit is turned. This is a protection circuit to protect any electrical or electronic equipment and appliance from sudden high or. The following circuit was requested by fastshack3. Timer circuit for automatic switch off any appliance after a fix time duration.

Delay timer with relay i am looking to build a circuit that would control an output relay. Delay relay module drok dc 6 30v timer relay 12v 24v 0 01s 9999min 50ma digital timer cycle delay switch module ac 220v power on off controller with lcd display switch button case 4 3 out of 5 stars 18. The working is very simple and is explained below. In this circuit we will show how to build a delay before turn off circuit with a 555 timer chip.

The output stays on for a few seconds and then turns off. When switch s1 is pressed then output will give high signal at pin 3 and transistor is on therefore the connected load with relay is also switched on. Delay timer for switch on supply to any appliance for protection. Time delay relay can provide a short delay after power is turned on and before switching on the device.

Power on delay timer circuit. The delay timer is a device that is used to take some duration before switch on the main input supply to any equipment. A delay before turn off circuit is a circuit that once you apply power to it turns on the output right away. Delay off timer circuit for off time delay switch off delay timer.

The off delay timing is mostly a function of c1 and r6. The exact delay is a bit hard to predict because it depends on the gain of the transistors particularly of q1. The easiest way to get the desired delay is to try a value of c1 then adjust up or down by experimentation. The circuit is based on the rc time delay and zener controlled switch.

The delayed switch off delay on break function uses a switch instead of input voltage. For example a projector s light is turned off with a switch but its cooling fan continues to run for a set time.