Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent
1996-07-11
1998-04-07
Berhane, Adolf
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
363 21, 363 25, G05F 156, H02M 3335
Patent
active
057368422
ABSTRACT:
A circuit technique that substantially reduces the boost-converter losses caused by the reverse-recovery characteristics of the rectifier is described. The losses are reduced by inserting an inductor in the series path of the boost switch and the rectifier to control the di/dt rate of the rectifier during its turn-off. The energy from the inductor after the boost switch turn-off is returned to the input or delivered to the output via an active snubber. The same technique can be extended to any member of the PWM-converter family.
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Berhane Adolf
Delta Electronics , Inc.
Kwok Edward C.
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