Constant on-time converter with frequency control

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United States of America Patent

PATENT NO 11757359
APP PUB NO 20230006554A1
SERIAL NO

17931802

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An improved power converter produces power through a power switch in response to an activation signal that has an on-time and a switching frequency. An on-time signal has a constant on-time and controls the on-time of the activation signal. An error signal indicates that the switching frequency is not equal to a reference frequency. A step up signal and a step down signal are based on the error signal. A count signal is increased in response to the step up signal and decreased in response to the step down signal. An on-time pulse has a duration that is related to a value of the count signal. The on-time pulse controls the constant on-time of the on-time signal and maintains the switching frequency at about the reference frequency.

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Patent Owner(s)

  • SILANNA ASIA PTE LTD

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dharmalinggam, Rawinder Singapore, SG 10 46
Lim, Tiong Singapore, SG 5 15

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