POWER MANAGEMENT APPARATUS AND METHODS
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United States of America Patent
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Issued Date -
Jan 21, 2010
app pub date -
Jan 27, 2009
filing date -
Jul 18, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A power management apparatus including power supply circuit and control unit is disclosed. The power supply circuit receives input voltage having voltage value, and converts voltage value into a first converted signal having a first voltage value and a second converted signal having a second voltage value through first and second converters, respectively. The first and second converters are reset according to first and second reset signals, respectively. The control unit receives the first and second converted signals, and compares the first and second voltage values with first and second reference ranges, respectively. The control unit further issues first reset signal when first voltage value is not within first reference range and second voltage value is within second reference range, and issues second reset signal when first voltage value is within first reference range and second voltage value is not within second reference range.
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