Arc-quenching device for direct current switch
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United States of America Patent
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Mar 30, 2021
Grant Date -
Sep 19, 2019
app pub date -
Oct 20, 2017
filing date -
Jan 13, 2017
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Abstract
An arc quenching device, which prevents a load device from displaying an unnecessary behavior during starting of a power supply, includes: a semiconductor switch connected in parallel to a first switch which is mechanical; a power supply circuit configured to use a voltage which is generated between both contact points of the first switch to output a voltage which causes the semiconductor switch to turn on; and a second switch configured to cause its open state to prevent the semiconductor switch from turning on.
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