Voltage converter

Electricity: power supply or regulation systems – Output level responsive – Using a transformer or inductor as the final control device

Reexamination Certificate

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Details

C323S264000, C323S340000, C363S046000

Reexamination Certificate

active

10612299

ABSTRACT:
A voltage converter includes a transformer circuit, a filter, and a controller. The transformer circuit is coupled to the filter, and the controller is coupled to the transformer circuit and the filter. The transformer circuit includes an input port and an autotransformer coupled to the input port. The voltage converter receives an input signal at the input port and generates a transformer output signal from a transformer output port. The filter receives the transformer output signal on a filter input port and the filter generates an output signal at an output port. The controller receives the output signal from the filter and provides one or more control signals to the transformer circuit to control the output signal. A method includes receiving a first input signal on an input port at a transformer circuit including a first coil and a second coil, activating a first switch to serially connect the first coil to the second coil, activating a second switch to connect the second coil to a second input port, deactivating the first switch and the second switch, and activating a third switch to connect the first input signal to the second input port.

REFERENCES:
patent: 5008801 (1991-04-01), Glennon
patent: 5795595 (1998-08-01), Beeck et al.
patent: 6304460 (2001-10-01), Cuk
patent: 6559562 (2003-05-01), Rostron
patent: 1300934 (2003-04-01), None
patent: WO-05006524 (2005-01-01), None
patent: WO-05006524 (2005-09-01), None
International Search Report and The Written Opinion of the International Searching Authority, or the Declaration for International Application No. PCT/US2004/019250.

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