Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate
2007-04-17
2007-04-17
Vu, Bao Q. (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
C323S207000, C363S037000, C363S089000
Reexamination Certificate
active
11069032
ABSTRACT:
A PFC circuit modulating a power line using pulse width modulation (PWM) to drive a power MOSFET and series inductor across the power line. Since many modern electronic systems include a power factor correction circuit (PFC) that already includes a series inductor and power MOSFET, a PLC is incorporated into a controller to inject a PLC transmit signal into a control loop for the PFC circuit. This can be done using either an analog PFC controller, such as the UCC28517, the UCC2819A, or a digital PFC controller such as based on a TMS320C24xx DSP.
REFERENCES:
patent: 5568041 (1996-10-01), Hesterman
patent: 6222746 (2001-04-01), Kim
Hagen Mark David
Jansen Robert E.
Brady III W. James
Vu Bao Q.
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