Dimming control method and lighting system with dimming control

A dimming control method and a lighting system having dimming control, in which the lighting system ( 200 ) includes an input unit ( 210 ), a light-emission unit ( 260 ) and a current control circuit ( 220 ). The dimming control method is characterized by outputting a continuous current with a varyi...

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Bibliographische Detailangaben
1. Verfasser:	HSU CHENGIA
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	A dimming control method and a lighting system having dimming control, in which the lighting system ( 200 ) includes an input unit ( 210 ), a light-emission unit ( 260 ) and a current control circuit ( 220 ). The dimming control method is characterized by outputting a continuous current with a varying amplitude to the light-emission unit under a higher brightness, and clamping the amplitude of the current output to the light-emission unit to a fixed value and outputting a discontinuous current with a fixed amplitude and a varying duty cycle to the light-emission unit under a lower brightness.