Apparatus and Methods of Operation of Passive LED Lighting Equipment
This patent presents a fully passive LED lighting system designed to eliminate electrolytic capacitors. The core innovation involves a circuit architecture that allows the LED load power to fluctuate within a controlled range, thereby drastically reducing the required energy storage capacitance.
Prof. HUI Shu Yuen Ron, CHEN Wu
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Passive LED Driver
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Valley-Fill Circuit
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Voltage Ripple Reduction
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Current Source
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Electrolytic Capacitor Elimination
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Input Inductor
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Coupled Inductor