SEMICONDUCTOR FUSE WITH DETECTION CIRCUIT FOR THE DETECTION OF A DRIFT OF THE GATE THRESHOLD VOLTAGE
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United States of America Patent
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Issued Date -
Sep 5, 2024
app pub date -
Mar 1, 2024
filing date -
Mar 1, 2023
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Abstract
A semiconductor fuse for the disconnection of an electric consumer from an energy supply source for a battery-electric vehicle includes at least one semiconductor switching element connectable between the energy supply source and the electric consumer. The semiconductor switching element includes a gate control terminal to switch on and off a power path of the semiconductor switching element. The semiconductor fuse includes: a drive circuit that applies a drive voltage at the gate control terminal of the at least one semiconductor switching element; a detection circuit that determines a resistance of the power path of the at least one semiconductor switching element and, detects a drift of the gate threshold voltage based on the resistance of the power path; and a control system that indicates an issue with the at least one semiconductor switching element based on the detection of the drift of the gate threshold voltage.
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