ENGR: Controlling SCR time on and off with a 555 timer

Fri Oct 10 00:43:54 EDT 2008

==> Automation List post by Paul Pri...
To view or reply to this thread: http://www.control.com/thread/1223530977

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ENGR:  Controlling SCR time on and off with a 555 timer
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Hello. My name is Paul Pri. Sorry to disturb you.

Is there any way I can control the SCR time on and off with 555 timer? Is there any circuit that you have or can make that would be able to control SCR on state and off state? I need to be able to adjust time on from 0.1 second to 10 seconds and after that - off till next triggering. What I want is to be able to damp low voltage and high current through SCR to do a CD spot welding of thermocoupling wire. Any help will be appreciated. Thank you for your time.

Paul
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