Apparatus and method for fast FET switching in a digital output device
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United States of America Patent
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Apr 29, 2003
Grant Date -
N/A
app pub date -
May 18, 2000
filing date -
May 18, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An industrial control output device is provided which provides electrical isolation between device power and field power. The device includes two isolation devices, one of which is adapted to energize a power switching device, and the other is adapted to de-energize the switching device. The output device thus minimizes or reduces EMI/RFI emissions and provides fast switching times in selectively providing power to a load. In addition, the invention includes a method of providing power to a load in an industrial control system, which allows fast switching of a digital output with minimal or reduced EMI/RFI emissions.
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