Fault current detection for solid-state circuit breakers and method of operating solid-state circuit breakers

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12148590
APP PUB NO 20240071704A1
SERIAL NO

17894740

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Abstract

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Solid-state circuit breakers and method of operating same are provided. A solid-state circuit breaker (SSCB) is configured to generate a first output representative of a current through a current path of the SSCB. An analog fault detection circuit is coupled with first output and is configured to assert a second output in response to the current exceeding a trip current level. At least one analog-to-digital converter (ADC) is configured to generate samples of the first output, where the at least one ADC has a di/dt detection bandwidth that is less than a di/dt detection bandwidth of the analog fault detection circuit. The SSCB is further configured to disable the current path through the SSCB in response to determining, asynchronously, that either the second output is being asserted by the analog fault detection circuit or the samples indicate that the current through the current path exceeds the trip current level.

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Patent Owner(s)

Patent OwnerAddress
ABB SCHWEIZ AGBADEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cairoli, Pietro Cary, US 18 43
Raheja, Utkarsh Sunnyvale, US 11 8
Rodrigues, Rostan Cary, US 5 11

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