Speed-Control Switch Circuit Circuit


Posted on Jul 13, 2012

A center-tapped 240-V transformer is used with two SCR devices to provide rectified ac (pulsating dc) to MOT1.


Speed-Control Switch Circuit Circuit
Click here to download the full size of the above Circuit.

Ql is a UJT ramp generator used to generate trigger pulses for SCR1 and SCR2.




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