Switching power supply, and method and circuit for...

Details Switching power supply, and method and circuit for... Switching power supply, and method and circuit for...

2006-07-04

2006-07-04

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S222000, C323S284000

Reexamination Certificate

active

07071666

ABSTRACT:
An output voltage of a switching power supply is regulated to a target value. When the target value of the output voltage is altered, the reference value is changed monotonously and linearly a plurality of times at a plurality of gradients to the altered target value. An input voltage of the power supply is switched in response to a switching pulse with the duty ratio calculated according to a difference between the reference value and the output voltage.

REFERENCES:
patent: 5677617 (1997-10-01), Tokai et al.
patent: 6281668 (2001-08-01), Sudo
patent: 6696821 (2004-02-01), Haraguchi et al.
patent: A 04-197075 (1992-07-01), None
patent: A 04-250470 (1992-09-01), None
patent: A 11-75366 (1999-03-01), None
patent: A 2001-251851 (2001-09-01), None

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