Method and apparatus for multi-stage power supplies

Details Method and apparatus for multi-stage power supplies Method and apparatus for multi-stage power supplies

2011-08-23

2011-08-23

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S285000

Reexamination Certificate

active

08004260

ABSTRACT:
A power supply having an specified hold-up time to take a input voltage and convert it to an output voltage, comprising: a first power stage to receive the input voltage; a second power stage to generate the output voltage and an output current; an intermediate charge storage device coupled between the first and second power conversion stages providing an intermediate output voltage in response to the input voltage; and a controller that controls the intermediate output voltage according to a voltage function that is associated with the hold-up time.

REFERENCES:
patent: 5289361 (1994-02-01), Vinciarelli
patent: 5349284 (1994-09-01), Whittle
patent: 5406192 (1995-04-01), Vinciarelli
patent: 6504497 (2003-01-01), Jang et al.
patent: 2002/0196006 (2002-12-01), Hwang
patent: 2009/0085546 (2009-04-01), Phadke et al.
patent: 2009/0097286 (2009-04-01), Lin et al.

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