Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate
2005-11-29
2005-11-29
Vu, Bao Q. (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
C323S284000, C323S901000
Reexamination Certificate
active
06969976
ABSTRACT:
A system, method, and apparatus are arranged to provide for current limit adjustments in a switching regulator that includes an inductor. A switched voltage divider circuit is selectively activated according to the actuation of various switching circuits in the regulator. The output of the switched voltage divider circuit is compared to a reference signal from a reference circuit to determine when a current limit is reached. At least one of the voltage divider ratio and the reference signal is adjustable in response to measurements related to the inductor saturation such that the current limit is changed to match inductor characteristics.
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Broach Michael Eugene
De Stasi Frank John
Hertzberg Brett A.
Merchant & Gould
National Semiconductor Corporation
Vu Bao Q.
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