POWER FACTOR CORRECTION APPARATUS WITH VARIABLE CAPACITANCE
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United States of America Patent
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Issued Date -
May 28, 2015
app pub date -
Nov 27, 2013
filing date -
Nov 27, 2013
priority date (Note) -
Abandoned
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Abstract
A power factor correction apparatus (10) is applied to a power application system (20). The power application system (20) outputs a rectified power (202) to the power factor correction apparatus (10). The power factor correction apparatus (10) includes a detection unit (102), a control unit (104), a variable capacitance unit (106) and a power factor correction unit (108). The variable capacitance unit (106) filters the rectified power (202). The detection unit (102) detects a status of the power application system (20) and then informs the control unit (104). According to the status of the power application system (20), the control unit (104) is configured to control a capacitance of the variable capacitance unit (106), so that a power factor of a power outputted from the power factor correction unit (108) to the power application system (20) is rising.
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