Ongoingon delay timer circuit
STDon delay timer circuit
License
：Public Domain
Description
This circuit is very useful in the Protection of Any Load. A Device Can be Damaged By the Sudden Unstabilized Current or Voltage flow Through Whole Circuit. Sometimes Mains Voltage Take Some Moment to Stabilization.
So If You Connect a Delay Timer, the Timer Stops The Current Flow For A Fix Duration, and After That, It Allow To Pass The Current.
Parts
IC 555 -1
Bridge rectifier -1
capacitor
1000uf 25v -1
100uf 25v -1
Resistor 1k- 1, 56k -1
transistor 2N2222A- 1
Relay 12v -1
Diode 1N4007 -1
12-0-12v step-down transformer (500ma or 1A)-1
For more projects on Delay timer click here
Click here for the Testing video of delay timer circuit
Design Drawing
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