Voltage detecting circuit and power converter having the same

Details Voltage detecting circuit and power converter having the same Voltage detecting circuit and power converter having the same

2005-12-27

2005-12-27

Laxton, Gary L (Department: 2838)

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

C363S089000, C363S126000

Reexamination Certificate

active

06980449

ABSTRACT:
A voltage detecting circuit including an impedance converter, an energy storage element, a current source and a comparing circuit is disclosed. The impedance converter is used for converting a high impedance voltage signal into a low impedance voltage signal. The energy storage element is electrically connected to the impedance converter, and receives the low impedance voltage signal. The current source is electrically connected to the energy storage element, and provides a discharging path of the energy storage element. The comparing circuit is electrically connected to the current source, and receives a voltage signal from the energy storage element. The voltage signal is compared with a predetermined reference voltage value stored in the comparing circuit so as to dynamically control operation of the power converter according to the comparing result.

REFERENCES:
patent: 4472672 (1984-09-01), Pacholok
patent: 5305192 (1994-04-01), Bonte et al.
patent: 6049473 (2000-04-01), Jang et al.
patent: 6115274 (2000-09-01), Mao
patent: 6549438 (2003-04-01), Malone

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