Shamim, i hope it is just misunderstanding. I am not talking about a closed loop system/ power supply, i am just asking about open loop Phase shifted modulation signals: As you change an input (presumably voltage on ADC input) 2 digital outputs generating pulses in antiphase change their time position/ phase relative to 2 other similar pulses. Duty cycle is 50%. This is definition of PSFB modulation. It has nothing to do with currents. My question: is there a good explanation of generation of PSFB modulation with example? Reference board can be different, of course.
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