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How to make an oscilating relay circut?

Can anybody tell me in detail, how you would go about making a relay oscilate? Please explain and give directions.

12 Replies

steveastrouk (author)2012-07-05

Wire its coil in series with one of its normally closed contacts to the supply

zaronas (author)steveastrouk2012-07-05

i dont know if im dumb but could you please explain that a little bit more

steveastrouk (author)zaronas2012-07-06

Try this

tesla man (author)steveastrouk2012-07-07

So, then( if im right) you can make another circut hooked up to the switching terminals, and make it pulse dc current, or make a very crude ac current.

steveastrouk (author)tesla man2012-07-07

Yes, in the very eary days of car radios, AC for their internal high violtage generations was supplied by "vibrators", which are essentially what we have here.

tesla man (author)steveastrouk2012-07-07

Ok. Thankyou.

tesla man (author)steveastrouk2012-07-07

Thankyou for the schematic. I have asked other people about how to wire a relay like this, but no one would answer me. So i just asked about oscilators in general.

+1 That's the way to do it.

Re-design (author)steveastrouk2012-07-05

+1

lemonie (author)2012-07-04

Run it off AC.

L

tesla man (author)lemonie2012-07-05

Well, my whole point is so that i can turn the dc current from a battery, into a very crude version of ac.

The Skinnerz (author)tesla man2012-07-05

To get square wave AC, you can use a 3pole/dual throw relay. Set up one of the poles as Steve says to make it oscillate.

Connect your input voltage to the NO of one of the free poles, and the NC of the other. Connect 0V to the remaining NC and NO. You will now have something which resembles AC across the commons.