METHOD AND APPARATUS FOR SENSING CURRENT IN A BACK-TO-BACK CONFIGURATION
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United States of America
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Issued Date -
Mar 20, 2025
app pub date -
Sep 13, 2024
filing date -
Sep 13, 2024
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Abstract
An apparatus for sensing current in a back-to-back MOSFET configuration is provided. The apparatus may include a first MOSFET having a gate terminal, a drain terminal, and a source terminal, a second MOSFET having a source terminal coupled to the source terminal of the first MOSFET, a gate terminal, and a drain terminal, a gate driver circuit including at least one gate drive output terminal to output a gate drive signal to the gate terminals of the first and second MOSFETs, and a shunt resistor coupled between the source terminals of the first and second MOSFETs. The gate driver circuit may include a return terminal coupled to the source terminal of the first MOSFET, and a return current from the gate terminal of the second MOSFET flows through the shunt resistor to the return terminal of the gate driver circuit.
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