Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate
2008-01-01
2008-01-01
Vu, Bao Q. (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
C323S282000, C363S084000, C363S089000, C363S095000
Reexamination Certificate
active
11393562
ABSTRACT:
A ripple current mode power converter comprised of a magnetic energy storage element, and a method of determining magnetic storage element charge duration based on periodic magnetic storage element current samples. In the preferred embodiment a controller processes a magnetic storage element ripple current, and average sampled current, to achieve high power factor forgoing the need to sense the AC signal current and voltage levels. The controller element periodically calculates the magnetic storage element charge duration to control the state of the switch element to maintain the AC input current proportional to the AC input voltage.
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Brady W. James
Integrated Circuit Design, Inc.
Shaw Steven A.
Telecky , Jr. Frederick J.
Vu Bao Q.
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