Load control device for high-efficiency loads

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United States of America Patent

PATENT NO 9220157
APP PUB NO 20150137692A1
SERIAL NO

14608639

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A two-wire load control device (such as, a dimmer switch or an electronic switch) for controlling power delivered from an AC power source to an electrical load includes a thyristor for controlling the power to the load, a gate coupling circuit electrically coupled to a gate terminal of the thyristor, a control circuit configured to control the thyristor to turn the load on or off, and a power supply configured to conduct current through the electrical load to generate a supply voltage across a capacitor when the thyristor is non-conductive. When the electrical lead is on, the control circuit is configured to maintain the thyristor non-conductive after a beginning of each half-cycle until the magnitude of the supply voltage exceeds a predetermined threshold.

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Patent Owner(s)

  • LUTRON ELECTRONICS CO., INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Carmen, Daniel F Schnecksville, US 23 553
Newman,, Jr Robert C Emmaus, US 161 3021

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