Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate
2006-04-04
2006-04-04
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
07023184
ABSTRACT:
A DC-DC converter is provided with a series circuit formed by an inductor and a capacitor, an output voltage for a load being tapped off across the capacitor and the load bringing about a load current. The converter also has a changeover switch for connecting an input voltage to the series circuit or for short-circuiting the series circuit and a control circuit for controlling the changeover switch in such a way that the changeover switch alternately short-circuits the series circuit or connects it to the input voltage. The converter also has a means for increasing a resistance in series with the series circuit at least in the event of the series circuit being short-circuited by means of the changeover switch, if the load current falls by a specific value.
REFERENCES:
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patent: 6630817 (2003-10-01), Kison et al.
patent: 6642696 (2003-11-01), Tateishi
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patent: 6737842 (2004-05-01), Bai et al.
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Köstner, R. et al., “Electronic Circuits: with 43 Tables and 68 Tasks,” Study Books of the Engineering Sciences, ISBN 3-446-16588-6, pp. 281-286, (1993).
Dicke Billig & Czaja, PLLC
Infineon Technoloiges AG
Vu Bao Q.
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