Electricity: power supply or regulation systems – For reactive power control – Using converter
Reexamination Certificate
2005-07-26
2008-12-16
Riley, Shawn (Department: 2838)
Electricity: power supply or regulation systems
For reactive power control
Using converter
C323S222000, C323S282000
Reexamination Certificate
active
07466110
ABSTRACT:
A power factor improving circuit including: a boost reactor that inputs a rectified voltage obtained by rectifying an AC power supply voltage of an AC power supply by a rectifier circuit; a main switch that inputs the rectified voltage through the boost reactor and is turned on/off; a converting section that converts a voltage obtained when the main switch is turned on/off into a DC output voltage; and a control section that controls turn-on/off of the main switch to shape an AC power supply current to a sine wave form, controls an output voltage of the converting section to a predetermined voltage, and controls a switching frequency of the main switch according to a value of current flowing into the AC power supply, or that of current flowing into the rectifier, or that of current flowing into the main switch.
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English machine translation of N.
English machine translation of O.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Riley Shawn
Sanken Electric Co. Ltd.
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