Single Input Power Wire - Multi Function Control
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United States of America Patent
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Issued Date -
Sep 12, 2013
app pub date -
Mar 9, 2013
filing date -
Mar 9, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A multifunction control circuit is responsive to a condition of the input power to selectively activate alternative functionality. In one embodiment, a μC is configured to monitor the input voltage, looking for a gap in the input voltage of a pre-determined duration, which indicates to the μC that the second (or additional) function is desired. This embodiment of the control circuit includes a 5 volt regulator configured to ensure sufficient power to the μC during an interruption of input power intended to present a function change signal. Alternatively, the control circuit may be constructed to monitor a change in the polarity of the input power and change functionality in response to changes in the polarity of applied voltage.
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