DC-DC CONVERTER FOR BATTERY SYSTEM WITH WIDE OPERATING VOLTAGE RANGE
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United States of America Patent
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Issued Date -
Jun 16, 2016
app pub date -
Sep 2, 2014
filing date -
Sep 1, 2013
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Abstract
Direct current to direct current (DC-DC) voltage converter apparatuses and methods are provided for a wide voltage range battery cell and operations thereof. The apparatus comprises a first node coupled with a first pole of a battery cell and electrically connected with a first pole of a load device. A second node is coupled with a second pole of the battery cell. A third node electrically connects with a second pole of the load device. A DC-DC voltage converter circuit comprises a primary circuit tied to the first and second nodes, a secondary circuit including a direct conduction path for electrical current to pass from the second to third node, and a galvanically isolated energy transfer path between the primary circuit and the secondary circuit. A voltage output from the secondary circuit adds to (or subtracts from) the battery cell voltage at the second node.
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