CONDITIONAL ACTIVE THERMAL CONTROL TO INCREASE POWER SEMICONDUCTOR LIFETIME AND EFFICIENCY
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Dec 26, 2024
app pub date -
Jun 22, 2023
filing date -
Jun 22, 2023
priority date (Note) -
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Abstract
A gate driver system includes an active thermal control (ATC) circuit that monitors load current changes of a load current conducted by a transistor, and enables or disables an ATC of the transistor based on the load current changes. The ATC circuit is configured to evaluate load current changes that satisfy a duration threshold as qualified load current changes. The ATC circuit is configured to detect a direction and a magnitude of a qualified load current change, compare the magnitude of the qualified load current change to a threshold, and enable the ATC of the transistor if the qualified load current change has a decreasing direction and the magnitude of the qualified load current change satisfies the threshold. The ATC circuit is configured to regulate, while the ATC is enabled, a power dissipation parameter to regulate a power dissipation of the transistor.
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