POWER SUPPLY APPARATUS
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United States of America Patent
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Issued Date -
Apr 30, 2015
app pub date -
Oct 30, 2014
filing date -
Oct 31, 2013
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Abstract
A power supply apparatus includes a master circuit part charging a battery initially, supplying energy to a load that is a light load, and charging the battery when discharged; and a slave circuit part having a common output terminal with the master circuit part and supplying energy to the load that is a heavy load along with the master circuit part by distributing the load among them, wherein the master circuit part includes a rechargeable battery therein. Energy is supplied to a load using a battery at a low load that is a half load or less in a power supply circuit, thereby increasing energy efficiency.
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