Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate
2008-11-07
2011-10-18
Berhane, Adolf (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
C323S282000, C363S089000
Reexamination Certificate
active
08040114
ABSTRACT:
A controller for use in a power factor correction (PFC) converter includes a power factor correction controller circuit coupled to output a drive signal to switch a power switch between an on state and an off state to transfer energy to an output of the PFC converter. The controller also includes an switching frequency adjuster coupled to output a frequency adjust signal to the power factor correction controller circuit to adjust an average switching frequency of the power switch in response to a load signal representative of a load coupled to the output of the PFC converter, wherein the frequency adjust signal is responsive to a range of load conditions.
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Zan
Berhane Adolf
Blakely , Sokoloff, Taylor & Zafman LLP
Gblende Jeffrey
Power Integrations, Inc.
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