| 摘要 |
A full wave (RMS) bridge circuit is disclosed for regulating a nominal 200 to 240 V AC bulk voltage to a nominal 300 V full wave rectified DC bulk voltage for all line and load conditions. The circuit automatically adjusts to varying line voltages and operates in any one of four modes: (i) full wave bridge, (ii) phase controlled bridge-doubler, (iii) phase controlled doubler, or (iv) non-controlled doubler to maintain the nominal DC output voltage.
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