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Hello, In the attached AC filter we can see that L1 is a common mode choke. We are trying to reduce the component count of this filter. Do you agree that we can get away with omitting the Cy1 capacitors , but that we must keep the Cy2 capacitors? In fact, why would the Cy1 capacitors be needed...

Hello, Regarding opto-isolated flyback SMPS’s, which opto-coupler connection method is more conducive to facilitating a higher bandwidth in the feedback loop whilst maintaining stability?….is it the common emitter connection of the opto, or the common collecter connection? An LTspice simulation...