UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - High side high voltage MOSFET switching with 3V logic drive?

25th Jan 2019, 7:26 pm

Why not do the PWM at 80V and then smooth? If the tuning current is low then a simple MOSFET/resistor amplifier would do the 80V bit and then a two/three stage low pass do the smoothing.

25th Jan 2019, 7:26 pm	#20
Guest Guest Posts: n/a	Re: High side high voltage MOSFET switching with 3V logic drive? Why not do the PWM at 80V and then smooth? If the tuning current is low then a simple MOSFET/resistor amplifier would do the 80V bit and then a two/three stage low pass do the smoothing.