Switching circuit, DC/DC converter, and control circuit thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12015349
APP PUB NO 20230129526A1
SERIAL NO

18047730

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Disclosed is a switching circuit including an input terminal, a switching terminal, a grounding terminal, a bootstrap terminal, a high-side transistor connected between the input terminal and the switching terminal, a low-side transistor connected between the switching terminal and the grounding terminal, a bootstrap capacitor connected between the switching terminal and the bootstrap terminal, a bootstrap switch connected between a constant voltage line and the bootstrap terminal, and a driver circuit configured to turn on the bootstrap switch in a period of time in which the low-side transistor is on and to turn off the bootstrap switch in a period of time in which the low-side transistor is off. The bootstrap switch includes two P-channel metal oxide semiconductor transistors connected in anti-series with each other between the constant voltage line and the bootstrap terminal.

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Patent Owner(s)

Patent OwnerAddress
ROHM CO LTDKYOTO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukushima, Shun Kyoto, JP 25 85

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