Quasi-parallel voltage regulator

Details Quasi-parallel voltage regulator Quasi-parallel voltage regulator

2011-01-18

2011-01-18

Han, Jessica (Department: 2838)

Electric power conversion systems

Current conversion

Having plural converters for single conversion

C307S077000

Reexamination Certificate

active

07872886

ABSTRACT:
Improved regulation and transient response are provided by a power supply architecture providing both unregulated and regulated voltage converters in parallel but deriving input power from separate power supplies connected in series wherein regulated and unregulated branches each provide a substantially fixed and constant proportion of the output current. The series connection of input power sources may provide a further feedback mechanism in addition to feedback for regulation which enhances overall performance. As a perfecting feature of the invention, inductor-less resonant converters which are switched in an interleaved fashion may be used in the unregulated branch while substantially cancelling the characteristic large output voltage ripple thereof.

REFERENCES:
patent: 5353215 (1994-10-01), Dinwiddie et al.
patent: 6343026 (2002-01-01), Perry
patent: 7030512 (2006-04-01), Krein
patent: 7071660 (2006-07-01), Xu et al.
patent: 7705490 (2010-04-01), Srinivasan et al.
patent: 2007/0296383 (2007-12-01), Xu et al.

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