Active clamping circuit and power supply system using the same

Details Active clamping circuit and power supply system using the same Active clamping circuit and power supply system using the same

2006-07-18

2006-07-18

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

C323S284000, C323S266000

Reexamination Certificate

active

07078882

ABSTRACT:
An active clamping circuit. The active clamping circuit is applicable to a DC-to-DC conversion circuit, and has an output terminal to supply an output voltage to a load. In the active clamping circuit, a determining circuit is coupled to the DC-to-DC conversion circuit to determine the output detects the output voltage and to output a first enable signal when the output voltage is higher than a first predetermined voltage. A voltage adjustment circuit is coupled to the determining circuit to pull low the output voltage according to the first enable signal. An inductor has a first end coupled to the output terminal of the DC-to-DC conversion circuit, and a diode is coupled between the inductor and an input terminal of the DC-to-DC conversion circuit as a conductive path to channel discharge current to the input terminal of the DC-to-DC conversion circuit.

REFERENCES:
patent: 6600298 (2003-07-01), McDonald et al.
patent: 6724174 (2004-04-01), Esteves et al.
patent: 6737846 (2004-05-01), Ben-Yaakov
patent: 564078 (1999-07-01), None

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