Dear Prof Yaakov. Thank you for all videos, especially this one which i asked you.

Great video, Helped me alot and very well explained

Gracias Maestro , un lujo sus clases !!!!!

good explanation, thank you

Thank you sir. Could you please name some of the commercial phase-shifted controller? and which one do you suggest? Thank you.

Thank you for your good explanation of the PSFB converter. But I want to make a precision; in the idle mode the output current will decreases (voltage across this inductor is -Vo) also the inductor current will decreases (curent transformer at 0Voltage).

Hello Professor, at 10:59 time of the video.......the voltage reverses but the current will still be negative since MOSFET Qd is not turned on yet...until gate for MOSFET Qd is given the body diodes of both Qa and Qd is conducting hence current is still negative but voltage is positive....but you have drawn current also as positive...Please clarify this for me Professor.

Good day, Sir. Considering a ZVS feature (presents in both architectures), what would you advice for an SMPS for audio: LLC or PSFB? Both are supposed to be used with an open loop. In addition I'm planning to go high: 800kHz-1MHz, so PSFB arrears a brick simple, but I'm not sure about which type will give me more clear rail.

Thank you Prof. 👏

Thank you so much, professor for the lucid explanation of PSFB converter operation and the enabling of ZVS because of the phase shifting operation. I was trying to simulate this topology and had two queries relating to this: Q1. As the phase shift becomes a degree of freedom in the PSFB converter, what exactly are the use cases for this? Can it be used for selective harmonic elimination, etc.? Q2. As the phase shifting is already helping achieve ZVS, do we still need to intentionally add deadtime in this topology (as we do with usual PWM based converters having bipolar switching for full bridge converter)?

Question ; when designed for a fixed load power" would a PSFB configuration produce LESS spikes than other variable load converters running at the same power? IF NOT why would PSFB ever be considered?

Dear Professor Ben-Yaakov, Thank you for all the knowledge you are constantly providing us! I do have a question about the matter presented in this video: Can you please explain why in the ZVS the body diode of QA will conduct (or "catch" as you said in 8:17). As I see it, on ZVS the capacitance Cds of QB will charge to Vin and Cds of QA will discharge at the same time and when the voltage drop on QB will be equal to Vin the voltage across QA will be zero and we can switch it in zero voltage drop. If QA body diode will be in forward biased that means QB Drain-Source voltage will be Vin + 0.7 (assuming 0.7V forward voltage). is it possible? Your answers and explanations are appreciated. Thank you!

Thank you for your good explanation of the PSFB converter. Would such a converter also have a capacitor in series with Lr - not for resonance, but to remove any DC current component that may give rise to flux stair-casing in T1. If so, how should the PSFB description be looked at or modified?

Great video, professor! I am working on a psfb application and this was very insightful. In some psfb application notes using peak current mode, I see the current signal is measured at the input so that there is no risk of flux walking and saturating the transformer. If we instead moved the current signal measurent to the output, in series with the inductor, do we still run the risk of saturating the transformer and now need DC blocking caps?

👍🙏❤

Hi professor thanks for PSFB , can you tell how to reduce gate ringing issues

Sir,during Idling the current direction you mentioned is the opposite and the mosfet will not turn on in the current direction mentioned .Sir , can you confirm this ?

Sir i have not understood capacitors part,how they came amd why are they charging and discharging

Thanks Prof for nice explanation, based on my research I found that turn off soft switching is know as ZCS, could you please clarify this?