Invention Grant
US09591706B2 Universal voltage LED power supply with regenerating power source circuitry, non-isolated load, and 0-10V dimming circuit 有权
通用电压LED电源具有再生电源电路,非隔离负载和0-10V调光电路

Universal voltage LED power supply with regenerating power source circuitry, non-isolated load, and 0-10V dimming circuit
Abstract:
A light-emitting diode (LED) lighting device has an LED and a power supply including an inductor coupled to the LED. A cathode of the LED is coupled to the inductor opposite an anode of the LED. The inductor is coupled for receiving a first power signal. A transistor includes a conduction terminal coupled to the inductor to enable current through the inductor. A current from the first power signal is switched to generate a second power signal. A first diode includes an anode coupled to the inductor opposite the cathode of the LED. A controller includes a first terminal coupled to a cathode of the first diode and a second terminal coupled to a control terminal of the transistor. A dimming controller is coupled to a third terminal of the controller. A Zener diode is coupled to the first terminal of the controller.
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