I want to drive an AC 220 V load(heater) controlled PWM from Microcontroller. I want to use power FETs to load drive upto 2000 Watts. I m not guessing any valuable circuit design. If anyone have any idea to do this, please help me out... thanx for all...
If anyone have any idea to do this, please help me out
You can do this with a triac and opto-couplers: -
Here's another idea using a 555 timer: -
Note that this is only good for a few hundred watts - you'd need a more powerful triac and drive interface for 2 kW. The circuit below might give you 1 kW: -
Looking around at triacs I think the BTA41 should be man enough for the job.