INTELLIGENT SEMICONDUCTOR SWITCH WITH QUASI-DIGITAL CURRENT LIMITATION
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United States of America Patent
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Issued Date -
Jun 20, 2024
app pub date -
Dec 4, 2023
filing date -
Dec 4, 2023
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Abstract
A current limitation concept for an intelligent semiconductor switch is described herein. In accordance with one embodiment, a method performed by the intelligent semiconductor switch comprises generating a gate current and switching on a power transistor by applying the gate current to the gate electrode of the power transistor. The method further comprises determining information regarding a load current passing through the power transistor and controlling—based on the information regarding the load current—the load current by reducing the gate current applied to the gate electrode of the power transistor. When the load current exceeds a first threshold value, the gate current is reduced by a specific amount, and when the load current exceeds a third threshold value, the gate current is further reduced by sinking a discharge current, which has a third current level, from the gate electrode of the power transistor.
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