Method and apparatus for a switch mode power supply that...

Details Method and apparatus for a switch mode power supply that... Method and apparatus for a switch mode power supply that...

2007-04-17

2007-04-17

Laxton, Gary L. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C363S021170, C323S282000

Reexamination Certificate

active

11397426

ABSTRACT:
A power supply with high pulse width modulation gain and low noise sensitivity has been disclosed. In one example, a control current is received at a control terminal of a regulator circuit. The control current includes a consumption current of the regulator circuit and a feedback current. A duty cycle at which a power switch is switched is adjusted in response to the feedback current. The consumption current of the regulator circuit is increased during an on-time of the power switch in response to the duty cycle at which the power switch is switched.

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Balakrishnan, B., “Three Terminal Off-Line Switching Regulator Reduces Cost and Parts Count,” Power Conversion, Sep. 1994 Proceedings, pp. 267-279.
EP02257806 European Search Report dated Apr. 26, 2005.

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