CONTROL APPARATUS FOR OPERATION LED
PURPOSE: An LED(Light Emitting Diode) driving control apparatus is provided to enable harmonic suppression, power factor improvement and flicker phenomenon minimizing by maintaining constant current control for an input current, as enabling simplification of circuit configuration and cost reduction...
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Format: | Patent |
Sprache: | eng ; kor |
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Zusammenfassung: | PURPOSE: An LED(Light Emitting Diode) driving control apparatus is provided to enable harmonic suppression, power factor improvement and flicker phenomenon minimizing by maintaining constant current control for an input current, as enabling simplification of circuit configuration and cost reduction in circuit configuration at the same time. CONSTITUTION: An LED driving control apparatus(10a) includes an LED array(30a), a driving control voltage generation part(50a) and a driving current control part(60a). An input side of the LED array is connected to the output side of the AC power supply. The one side of the driving control voltage generation part(50a) is connected to the LED array. One side of the driving current control part is connected to the driving control voltage generation part and the LED, and the other side of the driving current control part is connected to the input side of the AC power source, and is operated by a voltage generated in the driving control voltage generation part. The driving current control part performs constant current control of a plurality of input currents inputted after passing LEDs constituting the LED array. |
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