replacing relay with transistor

I'm having trouble converting this relay set up to transistor.

The relay diagram: http://img117.echo.cx/my.php?image=basicrelaysdiagram3lm.jpg

Posted by fred (fredy85@yahoo.com) on 08/05/2005, at 14:44 GMT

Whats it for ?

Whats the aim of the circuit ?

Steve

Posted by steveastrouk on 25/05/2005, at 13:43 GMT

Replacing relay with transistor

It looks like you are trying to reverse a motor with 2 single pole double throw (changeover) relays. There are 2 different circuits depending on wheather you would be using a dual +/- supply. These are the H bridge (which uses 4 transistors) or the half bridge (2 transistor) circuits.

Posted by Anonymous on 18/03/2010, at 10:12 GMT