Apparatus and method for power switch status check
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United States of America
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Dec 28, 2021
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Feb 1, 2021
filing date -
Feb 1, 2021
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Abstract
A power switch fault detector detects faults in the current paths of power switches. A first operational amplifier detects a drain-source voltage of a first set of parallel connected field-effect transistors in a current path. A second operational amplifier detects a drain-source voltage of a second set of parallel connected field-effect transistors in the current path. A hardware or software processor is configured to compare a difference in magnitude of the drain-source voltages to a threshold voltage to determine whether a field-effect transistor of one of the first set or second set is compromised. The current path is isolated and one of the first set or second set of field-effect transistors is deactivated to determine whether a field-effect transistor of the first set or second set is stuck-open or shorted.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- INFINEON TECHNOLOGIES AG
International Classification(s)
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- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Valero, Alexandre | Aix-en-Provence, FR | 1 | 0 |
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