Relay actuation circuitry
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United States of America Patent
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-
Oct 8, 1991
Grant Date -
N/A
app pub date -
Feb 21, 1989
filing date -
Feb 21, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The operation of an electromechanical relay is synchronized with the power line waveform where an electrical power supply is supplied from a source to an electrical load. The current voltage supplied to the load is characterized by a power line waveform. An electromechanical relay is positioned between the power supply and the load where contacts of the relay are opened and closed to interrupt and supply power to the load. A microcontroller is positioned between a power source and the electromechanical relay and actuates the relay so that the contacts are closed or opened at a preselected point on the power line waveform. Closure of the contacts at the preselected point is accelerated by supplying an increased power signal to the relay coil and thereafter returning the signal to the rated power.
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