METHOD AND APPARATUS FOR SENSING CURRENT IN A BACK-TO-BACK CONFIGURATION
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United States of America
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Mar 20, 2025
app pub date -
Sep 16, 2024
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Sep 16, 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 return terminal coupled to the source terminals of the first and second MOSFETs, a shunt resistor coupled between the source terminals of the first and second MOSFETs, and a first MOSFET return resistor coupled between the source terminal of the first MOSFET and the return terminal of the gate driver circuit. The first MOSFET return resistor resistance may be greater than a resistance of the shunt resistor.
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