Digital control method for improving heavy-to-light (step down) load transient response of switch mode power supplies

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United States of America Patent

PATENT NO 8274264
APP PUB NO 20110204862A1
SERIAL NO

12708871

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Abstract

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A method for improving heavy-to-light load transient response in low-power switch-mode power supplies is described. It uses a negative voltage input power rail and a digital controller with an extended duty ratio control value to provide faster discharging current slew rate in the switched mode power supplies (SMPS) inductor.

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Patent Owner(s)

Patent OwnerAddress
EXAR CORPORATION48720 KATO ROAD FREMONT CA 94538

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Prodic, Aleksandar Toronto, CA 41 933
Zhao, Zhenyu Burlington, CA 35 355

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