Direct AC-to-DC converter for passive component minimization and universal operation of LED arrays
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United States of America Patent
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Jan 29, 2013
Grant Date -
Jul 22, 2010
app pub date -
Jan 19, 2010
filing date -
Jan 21, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed herein is a power converter circuit for a LED lighting device. The power converter includes a pair of input terminals adapted to be connected to a signal source, at least one LED, a first circuit adapted to supply current to the at least one LED and including: a first bi-directional switch connected between one input terminal and one side of the at least one LED, and a second bi-directional switch connected between the other side of the at least one LED and the other input terminal, and a second circuit adapted to supply current to the at least one LED and including: a third bi-directional switch connected between the other input terminal and the one side of the at least one LED, and a fourth bi-directional switch connected between the one input terminal and the other side of the at least one LED.
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