METHOD FOR CHECKING THE SWITCH-OFF CAPABILITY OF A MOSFET
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United States of America
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Feb 13, 2025
app pub date -
Dec 16, 2022
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Dec 16, 2022
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Abstract
Disclosed is a method for checking the turn-off capability of an electronic fuse in the form of a MOSFET, said electronic fuse being used as an interrupter switch between a voltage supply and a control device, wherein the MOSFET is turned on during operation as intended and is operated in the linear region, wherein, for checking the turn-off capability, the gate-source voltage of the MOSFET is reduced by a predefined value until a predefined threshold value is reached and, after the threshold value has been reached, the gate-source voltage is increased again to the previous value for turning on the MOSFET, and wherein a check is made to ascertain whether the drain-source voltage of the MOSFET increases as the gate-source voltage is reduced.
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