DC to DC voltage converter

Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...

Reexamination Certificate

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Details

C323S225000, C323S259000, C323S288000

Reexamination Certificate

active

07453247

ABSTRACT:
A DC to DC converter comprising an inductor, first and second electronically controllable switches and a controller, wherein the first electronically controlled switch is interposed between an input node and a first terminal of the inductor and the second electronically controllable switch extends between a second terminal of the inductor and the ground and where a first rectifier extends between the ground and the first terminal of the inductor and a second rectifier connects the second terminal of the inductor to an output node, wherein the controller controls the operation of the first and second switches to perform voltage step down or voltage step up, as appropriate, to achieve a desired output voltage; and wherein the controller is arranged such that the order in which the first and second switches are operated is maintained irrespective of whether the converter is stepping up the input voltage or stepping down the input voltage.

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patent: 6037755 (2000-03-01), Mao et al.
patent: 6166527 (2000-12-01), Dwelley et al.
patent: 6812676 (2004-11-01), Tateishi
patent: 6984967 (2006-01-01), Notman
patent: 7157888 (2007-01-01), Chen et al.
patent: 7176667 (2007-02-01), Chen et al.
patent: 7256570 (2007-08-01), Zhou et al.
patent: 7265524 (2007-09-01), Jordan et al.
patent: 7298119 (2007-11-01), Summit et al.
patent: 2006/0176038 (2006-08-01), Flatness et al.

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