Direct AC Drive for LED Lamps
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United States of America Patent
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N/A
Issued Date -
Aug 11, 2011
app pub date -
Feb 11, 2011
filing date -
Feb 11, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A direct driver system is disclosed for powering and regulating LED lamps. An LED driver is configured to serve as a linear regulator/switcher, thus minimizing the need for the use of switched-mode power supplies, flybacks or pulse-width modulation (PWM) in LED driver circuitry. The direct drive is configured with a voltage source, a resistive element or apparatus, and a predetermined number of LEDs optimized to produce customizable features in relation to driver efficiency, power factor and regulation. When dimming circuits are used, an active region for the LED can be defined using a phase angle of the dimming circuit.
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