Electronic Timer Circuit for motor

Thread Starter

real_eng

Joined Apr 19, 2009
4
Gurus,
May be this is too simple for you guys but i being from different branch dono much abt electronics.
I am trying to built a circuit which will work as timer which will stop my motor(this motor is like water pump motor) after say 1 hr.
so the I see circuit between AC Current and the Motor which will cut the AC supply to motor after particular time.
AC current -- Circuit---Motor.

Can someone pls help me in this.

Thanks in Advance
Real
 

hgmjr

Joined Jan 28, 2005
9,029
I think this is an application for a relay. You would use the relay to apply and remove the voltage to the pump motor. You can then use a low voltage timer circuit to control the relay.

hgmjr
 

Thread Starter

real_eng

Joined Apr 19, 2009
4
Thx for the response..
Can you pls elaborate more on this..
which IC to use etc.. If there is any link which can explain me

Thx again
 

KMoffett

Joined Dec 19, 2007
2,765
How much current does the pump draw? How much variability around 1 hour do you want?

Ken
 

Thread Starter

real_eng

Joined Apr 19, 2009
4
Doono how much it draws.. Its the standard 230V AC Im supplying, I need to off the motor after 1 hr..
Is there any way to find how much current it takes.

Thanks so much for ur help
 

tkng211

Joined Jan 4, 2008
65
If you are new to the electronic or electrical DIY, suggest you to buy those cheap Timer switching Plugs from the stores ( you can choose either digital type or mechanical type).
If you wanna try to build it yourself, be careful about electric shock or blowing up due to careless mistakes when testing.
 

Chris15

Joined Apr 15, 2009
252
Hi
Could some 1 send me a schematic of a low volt (9V) Timer usin 1 555 timer

Thanks Chris
 
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