Switching power supply control device and switching power...

Details Switching power supply control device and switching power... Switching power supply control device and switching power...

2006-11-07

2006-11-07

Vu, Bao Q. (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

C323S224000, C323S284000

Reexamination Certificate

active

07132818

ABSTRACT:
A switching power supply comprises a switching device, a smoothing circuit, and a control circuit including a current detector for detecting a current flowing through an inductor in the smoothing circuit. The detected current is multiplied by a current control gain to generate a signal PIS. The rectangular wave signal is add to and the signal PIS is subtracted from a voltage detection signal corresponding to the output voltage of the switching power supply. The current control gain is adjusted so that ΔPIS/ΔD becomes closer to a predetermined constant, where ΔPIS represents an amount of change in the signal PIS, and ΔD an amount of change in the duty ratio of a driving signal for the switching device.

REFERENCES:
patent: 5867379 (1999-02-01), Maksimovic et al.
patent: 6222746 (2001-04-01), Kim
patent: 6259613 (2001-07-01), Lee et al.
patent: 6650092 (2003-11-01), Lidak et al.
patent: 6657417 (2003-12-01), Hwang
patent: 6683441 (2004-01-01), Schiff et al.
patent: 6737845 (2004-05-01), Hwang
patent: 6903535 (2005-06-01), Liu et al.
patent: 6906499 (2005-06-01), Hussein et al.
patent: A 2005-176547 (2005-06-01), None
“An Accurate and Practical Small-Signal Model for Current-Mode Control,” RidleyEngineering, pp. 1-22, 1999.
Data Sheet of HIP6301 PWM controller, pp. 1-18.

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