Quote:
Originally Posted by Barrykgerdes
It is interesting how everyone seems to insist on a pure sine wave from their AC supply when it comes from some sort of an inverter but forget that after the AC gets into the set it is turned back into DC with a simple filter/negative feed back system and used to generate a HF square wave to drive a transformer that can supply a range of voltages for subsequent rectification back to DC.
Barry
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Square waving invertor outputs straight into a rectifier/large cap can cause large currents spikes and noise, let alone a horrendous power factor. Inefficient.