Efficient bootstrap supply generators for multi-level power converters

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12237772
APP PUB NO 20230344352A1
SERIAL NO

18307631

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Importance

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Abstract

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Circuits and methods for providing a “bootstrap” power supply for level-shifter/driver (LS/D) circuits in a FET-based power converter. In a first embodiment, linear regulators and a bootstrap capacitor provide a bootstrap power supply for level-shifter/driver circuits in each tier of a multi-level FET-based power converter. In a second embodiment, floating charge circuits and bootstrap capacitors provide an improved bootstrap power supply for level-shifter and driver circuits in each tier of a multi-level FET-based power converter. More particularly, a floating charge circuit configured to be coupled to an associated bootstrap capacitor includes a first sub-circuit configured to pre-charge the associated bootstrap capacitor when coupled and a second sub-circuit configured to transfer charge between the bootstrap capacitor and a bootstrap capacitor coupled to an adjacent floating charge circuit.

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Patent Owner(s)

Patent OwnerAddress
MURATA MANUFACTURING CO LTD10-1 HIGASHIKOTARI 1-CHOME NAGAOKAKYO-SHI KYOTO 6178555 ?6178555

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wu, Gary Chunshien San Diego, US 30 151

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