3 ms·
> Your stock plug-in DC power supply is actually a AC->DC->AC->DC device That is actually not at all how switching converters work. Pulsed DC is not AC. Those
by calamari4065 3y ago
> Your stock plug-in DC power supply is actually a AC->DC->AC->DC device
That is actually not at all how switching converters work. Pulsed DC is not AC. Those are two very different things.
- coryrc 3y agoI'm not even sure how to reply to how wrong you are. You could only argue that with flyback topology (I'd still say you are wrong) but try a standard full-bridge and tell me the current isn't alternating. Then check out some ZCS variants and tell me which of those current waveforms don't look like Alternating Current.
- nine_k 3y agoPulsed DC is not DC,:) Since all such power supplies prominently feature transformers, they can't operate on DC alone. But the frequency they use is high (a few kHz), the transformers are small, unlike the huge beasts in traditional 50/60 Hz power supplies.
- dreamcompiler 3y agoAC can mean "sinusoidal" or it can more generally mean "any non-constant voltage [or current]." It was clear from the context that the parent meant the latter.