Battery protection device and method for DC power supply
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United States of America Patent
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Dec 26, 2017
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N/A
app pub date -
Aug 25, 2011
filing date -
Jan 17, 2011
priority date (Note) -
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Abstract
Disclosed are a battery protection device and method for DC power supply. The device comprises: a first branch circuit unit and a second branch circuit unit; a monitoring unit is connected with a DC power supply, the first branch circuit unit and the second charge circuit unit respectively; the first branch circuit unit and the second branch circuit unit are connected in parallel, with one end connected to the DC power source and the other end connected to the load units in series via a battery unit; when the monitoring unit detects that the DC power supply supplies power normally, it controls the first branch circuit unit to conduct, the DC power supply supplies power to the load units; when the monitoring unit detects that the DC power supply supplies power abnormally, it controls the second branch circuit unit to conduct, the battery unit supplies power to the load units.
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