Good point Rick,
I should have explained that even though the larger inductance reduces
the rms current in the primary significantly, the positive and
negative peak currents are highly asymmetric. Simulating with a
sinewave input, the positive peak current is about 110mA whilst the
negative is
It's also hard to see how the circuit could work with C1 in series with
the transformer current. Why is a capacitor needed if you use the
transformer?
Maybe there is some effect that will balance things out, but if the two
currents are unequal, actually it would be the integral of the two
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