Power Off Delay Timer Circuit Diagram. A simple timer circuit can be built by using only a single or two transistors. Timer circuit for delay switch off.
Automatic switch off after delay duration time using 555 timer. The above circuit diagram is for the 1 minute timer circuit. In this project we are going to design a simple time delay circuit using 555 timer ic this circuit consists of 2 switches one for start the delay time and other for reset.
The simple delay timer circuit is similar and has just a few more components.
Power on delay timer circuit. We have to configure 555 timer in mono stable mode to build a timer. The time delay for the common emitter will be approximately 3 time constants or 3 r c. There is a delay before the output turns off.
