Single switch high efficiency power supply
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United States of America Patent
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Apr 30, 2013
Grant Date -
Dec 3, 2009
app pub date -
May 27, 2009
filing date -
May 30, 2008
priority date (Note) -
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Abstract
Disclosed are apparatus and methodology for providing a capacitive voltage divider configured to reduce a relatively high level alternating current (AC) to a lower level direct current (DC). The apparatus provides a series of capacitors and diodes configured for series charging of the capacitors and parallel discharge thereof by way of a single switching element. In operation, the capacitor series is charged during the negative half cycle of the AC source and then discharged during the positive half cycle thereof.
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