Pulse width modulation controller
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United States of America Patent
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Sep 1, 2015
Grant Date -
Jun 13, 2013
app pub date -
Sep 13, 2012
filing date -
Dec 9, 2011
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Abstract
Disclosed herein is a Pulse Width Modulation (PWM) controller. The PWM controller includes a plurality of Field Effect Transistors (FETs) and an FET driver. A comparator compares a current flowing through the FETs with an overcurrent reference value, and microcomputer controls a motor and a circuit protection function, and turns off the FET driver when the current flowing through the FETs is greater than the overcurrent reference value as a result of comparison by the comparator.
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