Tuesday 3 September 2019

dimmer - RE: RCR design in TRIAC circuit for inductive loads


I was working on a TRIAC based dimming circuit. Initially I plaaned to use a PCB mountable SSR (G3MB-202P), though this was a cheap but the device didnt allow me to do dimming with the same. I can only turn ON or Turn OFF the load. and the other SSR cost $$$(lots of them). So i decided to take a fairly cheap path of using an OPTO-DIAC and a TRIAC.


please find my design below.


I have actually copied the RCR circuit from an online blog. Can someone please help me with the design of this. I know that this circuit is a phase compensation circuit for the current and voltage(lags) due to the inductive load.


enter image description here


Thanks and regards. Siddharth




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