System and method for limiting voltage
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United States of America Patent
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Jul 6, 2021
Grant Date -
Jun 21, 2018
app pub date -
Dec 19, 2017
filing date -
Dec 21, 2016
priority date (Note) -
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Abstract
A voltage limiting circuit for limiting the voltage developed across a current sensing circuit and a method are disclosed. The voltage limiting circuit includes an input terminal configured to receive an input signal from the current sensing circuit, and an output terminal configured to receive an output signal from the current sensing circuit. A voltage sense circuit is connected to the input terminal and output terminal to detect that a predefined threshold voltage is developed between the input terminal and output terminal. An activation circuit receives a signal from the voltage sense circuit to activate the voltage limiting circuit, and a level shifting circuit interfaces the voltage sense circuitry to the activation circuitry and other circuits by level shifting signals to required levels.
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