I have been given a HW problem to find the duty ratio of forward converter when the reset winding is connected to the secondary side. I have to calculate the duty ratio for this circuit.
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This circuit predates me. I think it's a MAG-AMP. Not sure, as differential amplifiers in IC form took over the world of autopilots, and I never had to do any cognizant work on the 1950-60s stuff. Too bad there's no tubes (or valves) in the circuit diagram to make it real fun.