Igniter, igniter control method, and internal combustion engine ignition apparatus
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United States of America Patent
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May 9, 2017
Grant Date -
Mar 26, 2015
app pub date -
Nov 26, 2014
filing date -
Aug 30, 2012
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Abstract
An igniter is not provided with a depression IGBT and is configured such that a distance between a main IGBT and a sense IGBT is equal to or greater than 100 μm and equal to or less than 700 μm and preferably equal to or greater than 100 μm and equal to or less than 200 μm. The igniter is controlled such that, before the overcurrent of the main IGBT reaches a predetermined upper limit, a sense current of the sense IGBT is saturated. Therefore, it is possible to provide the igniter which has a small size and prevents the overshoot of a collector current of the main IGBT when a current is limited and an internal combustion engine ignition apparatus which includes the igniter, has a small size, and prevents an ignition error.
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