ELECTRICAL BARRIER
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United States of America Patent
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Issued Date -
Mar 18, 2010
app pub date -
May 23, 2007
filing date -
May 23, 2006
priority date (Note) -
Abandoned
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Abstract
An electrical barrier for connecting a power supply to electrical equipment to be used in a potentially explosive area. The barrier includes a shunt zener diode for limiting the output voltage and a series resistance for limiting the current. In the arrangement shown, the shunt zener diode is a silicon carbide zener diode which has a higher resistance to large output current and/or operating temperature than zener diodes fabricated commercially.
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