Reverse battery protection circuit with isolation and reverse polarity circuits

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12266922
APP PUB NO 20230411953A1
SERIAL NO

17844306

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Abstract

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A circuit for reverse battery protection includes an isolation circuit and a control circuit. The isolation is circuit coupled between a gate output of an electronic fuse (E-fuse) and at least one external metal-oxide-semiconductor field-effect transistor (MOSFET). The E-fuse is coupled between a battery voltage pin and an external ground pin and further coupled to a microcontroller. The isolation circuit is configured to disconnect the gate output from the at least one external MOSFET when the battery is installed with reverse polarity. The control circuit is coupled between the external ground pin and the at least one external MOSFET. The control circuit is configured to turn on the at least one external MOSFET when the battery is installed with the reverse polarity.

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Patent Owner(s)

Patent OwnerAddress
STMICROELECTRONICS S R LITALY AGRA BRIANZA AGRATE BRIANZA VARESE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Ping Shanghai, CN 557 5577
Marzo, Alberto Giarre, IT 3 6
Randazzo, Vincenzo Biancavilla, IT 11 43
Re, Andrea Camillo Valverde, IT 1 1
Yan, Hui Shanghai, CN 45 100

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