Posted by dapj20 on Nov 12, 2019 in 555-Circuits, SCR-Trigger-Circuits
This circuit gives a burst of pulses to fire 2 SCRs, when pin 4 is taken to 12V the SCR is turned on, to use this circuit you need 12V short pulses phase shifted with respect to AC sine wave on bridge, like this you can control the bridge from near 0%… more »