Power supply architecture with controlled power-on and...

Details Power supply architecture with controlled power-on and... Power supply architecture with controlled power-on and...

2005-10-18

2005-10-18

Vu, Bao Q. (Department: 2838)

Electric power conversion systems

Current conversion

Having plural converters for single conversion

C363S070000, C363S071000

Reexamination Certificate

active

06956752

ABSTRACT:
A power supply apparatus converts an input voltage (2) into a first (3) and a second output voltage (7). The first (3) and the second output voltage (7) are put into and/or out of operation sequentially. The power supply apparatus comprises a first converter unit (1) which converts the input voltage (2) into the first output voltage (3), and a second converter unit (5) for providing the second output voltage (7). The second converter unit input (6) is coupled to the first converter unit output (3). The second converter unit (5) can only start and provide an output voltage after the first converter unit (1) has started. During power-down, a sequence is created in which the second converter unit remains operational until any capacitance coupled to the first converter unit output has been discharged.

REFERENCES:
patent: 5659208 (1997-08-01), Kimble et al.
patent: 5751150 (1998-05-01), Rippel et al.
patent: 6160722 (2000-12-01), Thommes et al.
patent: 6466469 (2002-10-01), Caruthers et al.

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