Timer Plus Relay Circuit

Timer Plus Relay Circuit with 555 timer IC

How to make an relay circuit with timer 555


Timer Plus Relay Circuit with 555 timer IC



Closing S1 Momentary-begins a timing cycle. The Relay is actuated during the entire cycle. R1 And C1 Conrol time delay. C2 prevents false Triggering. D2 absorbs voltage generated by relay coil when relayis switched OFF. Use coution when connecting line-powered devices to relay connections.


R1 C1= 10µF C1= 100 µF
100 K 2 16
220 K 3 33
470 K 6 70
1 M 15 175

Keywords : 555, 556, Timers, Timer, Pulse, Astable, Bistable, Monostable, Circuit, Square, Wave, Sinus, 555pin
Writer : delon  |
19 Apr 2006 Wed   
No Comments