If the momentary PB switch is now closed, 0V is applied at A shutting everything off. The switch can be held for 2 seconds without affecting the operation. R1, R2, R6, and C3 form an RC time delay ...

Push Button switch; Power supply 5-9v . Circuit Diagram and Explanation. We now know that 4017 IC output advance with a positive edge clock pulse, so we have used 555 timer IC in Monostable mode, to ...

In this relay circuit we use a push button to trigger a 5V relay, which in turn, ... Relay Switch Circuit Diagram . ... In the above circuit, 5V relay is powered by a 9V battery. An ON/OFF switch is ...

If diodes D1–D6 are removed from the device in Figure 2, the electronic analogue of the mechanical switcher will be able to turn on and off each of the loads Rload1–Rload3 independently of each other ...