Reduced component power converter with independent regulated...

Details Reduced component power converter with independent regulated... Reduced component power converter with independent regulated...

2007-06-19

2007-06-19

Nguyen, Chau N. (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Plural converters

Reexamination Certificate

active

10618062

ABSTRACT:
A DC to DC switching power converter includes a shared set of high-side switching elements which may be operated at approximately a duty cycle approaching 50%, and one or more sets of low-side switching elements which may be operated at a lower duty cycle. The sets of low-side switching elements may be turned off early in response to a control signal to regulate a particular output. Steering diodes are included to inhibit current from flowing between the various low-side stages when turned of at different times. Freewheeling diodes reduce the need for snubber circuitry. The control signals may be isolated by high-speed optical couplers.

REFERENCES:
patent: 6181585 (2001-01-01), Cardwell
patent: 6504267 (2003-01-01), Giannopoulos
patent: 2002/0037796 (2002-03-01), Harding et al.
patent: 0 907 237 (1999-07-01), None
patent: 1 213 820 (2000-09-01), None

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