Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent
1998-07-07
2000-03-14
Nguyen, Matthew
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
323282, G05F 110, G05F 156
Patent
active
060377550
ABSTRACT:
For use in a buck+boost DC/DC power converter having first and second switches, a switching controller, a method of controlling the first and second switches and buck+boost DC/DC power converters employing the switching controller or the method. In one embodiment, the switching controller includes: (1) a regulation circuit that provides a drive signal and (2) a drive signal generator, coupled to the regulation circuit, that generates a pulse of fixed duration based on the drive signal and provides the pulse and the drive signal to the first and second switches. In another embodiment, the switching controller further includes a comparison circuit that compares an input voltage with an output voltage and generates a control signal based thereon to a drive signal generator that routes a pulse and a drive signal to the first and second switches.
REFERENCES:
patent: 4618812 (1986-10-01), Kawakami
patent: 4729088 (1988-03-01), Wong
patent: 4801859 (1989-01-01), Dishner
patent: 5402060 (1995-03-01), Erisman
patent: 5714863 (1998-02-01), Hwang et al.
patent: 5831418 (1998-11-01), Kitagawa
Mao Hengchun
Thottuvelil Vijayan J.
Lucent Technologies - Inc.
Nguyen Matthew
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