Linear voltage regulating circuit with undershoot minimization and method thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7498780
APP PUB NO 20080265853A1
SERIAL NO

11739115

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Abstract

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A voltage regulating circuit for providing a regulated output voltage. The voltage regulating circuit includes a voltage regulator, a converting circuit, a capacitive device, a first current mirror module, and a second current mirror module. The voltage regulator has a first output producing the regulated output voltage and a second output producing a pass voltage. The converting circuit converts the pass voltage into a first current and a second current passing through a first converting node and a second converting node respectively, where the first current charges/discharges the capacitive device. The first current mirror module has a first current mirror path coupled to the first converting node and a second current mirror path coupled to the second converting node. The second current mirror module has a first current mirror path coupled to the second converting node and a second current mirror path coupled to the first output.

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Patent Owner(s)

Patent OwnerAddress
MEDIATEK INCNO 1 DUSING RD 1ST SCIENCE-BASED INDUSTRIAL PARK HSIN-CHU

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Hung-I Kao-Hsiung, TW 19 264
Lou, Chih-Hong Yilan County , TW 33 217

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