Hello guys , In this post we learn how to make simple delay timer circuit in easy way and cheap price.
Let Start it:-
*specification
-you can use in this automatic turn off/on circuit.
-you can it use in your lamp,tv,bulb etc.
-made with less components
-cheap in price.
*Parts Required
1,Transitor(Bc547)
2.Led(3v 5mm)
3.Resistance(10k,100Ω)
4.Capacitor(1000uf)
5.Push button
*Schematics
-do all the connection according to this diagram.
-connect transistor emitter wire into ground and collector to led.
-connect 3-12 volt battery in red and black wire.
*How to change delay time in circuit?
-If you want to change the delay time you have to just change the capacitor value. Increasing the value of capacitor the delay time also be increased and vice-versa.You can also connect a relay in this circuit to control AC appliances. Please keep in mind, the delay time also depends on the connected load.
*How to Control Ac devices?
-Simply you should add 5v relay in place of led and use relay according to your ac voltage .
-Enjoy
*Preview


