Seemed a little strange to me also. Maybe if I understood the IC driving the two MOSFETS better. Its a IR2085S. Its datasheet calls it a "self-oscillating half bridge driver w/50% duty cycle.
Seems strange to me that we'd generate AC this way through the board...but as one of the comments...
@Ve1bll - Good catch, I just assumed that all the other voltage supplies on here were DC...since we've got a xfmr this is got to be AC. Did some searching on the H-Bridge and your right that's what the circuit is. Most of the stuff I find on H-Bridge has to do with motor direction, but my...
Thx for response.
Not sure though because the schematic has a +15V supplying the driver circuit (going to each gate)...but the same 15V supply also goes to the drain of Q4. Q5 source goes down to the return terminal.
Why not just go straight from the original 15V? its only going to be able to...
Hi All,
I'm an electrical that's coming from mostly experience in software and trying to learn some schematics of our current products.
Can't show it all but had a question about this circuit. We have an IC being fed by a 15V supply, it drives the gate of 2 MOSFETS in sync. Looking at the...
