Step up switching converter

Details Step up switching converter Step up switching converter

2007-06-26

2007-06-26

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

C323S222000, C363S018000

Reexamination Certificate

active

10570934

ABSTRACT:
A step up switching converter is disclosed. The switching converter comprises a first semiconductor switch arranged in series connection with a storage inductor and a sensor resistor. The control electrode of the first semiconductor switch is connected via a resistor to the input voltage, the resistor constituting the operating resistor of a second semiconductor switch. The voltage drop of the sensor resistor is fed to the control electrode of the second semiconductor switch as an indicator of the current through the storage inductor, and that connection of the storage inductor connected to the first semiconductor switch being connected on the one hand via a rectifier diode to an output capacitor which carries the output voltage, and on the other hand via a series RC element to the control input of the second semiconductor switch.

REFERENCES:
patent: 4378585 (1983-03-01), Bete
patent: 4999566 (1991-03-01), Kuehn
patent: 5227964 (1993-07-01), Furuhata
patent: 6504733 (2003-01-01), Watson et al.
patent: 6816392 (2004-11-01), Takamatsu
patent: 30 07 566 (1981-09-01), None
patent: 0 883 231 (1998-12-01), None
International Search Report of PCT/AT2004/000270 dated Dec. 12, 2004.

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