A TRIAC dimmable driver design for high dimmer compatibility in low power LED lighting

LED lighting driver design in TRIAC dimming application has been faced with the difficulties of dimmer compatibility due to low LED power. The LED current dimming is basically controlled by primary side regulation with feedback modulation in the proposed TRIAC dimmable driver. With system compactnes...

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Hauptverfasser:	Hyunchul Eom, Youngjong Kim, Yongsang Shin
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Capacitors Fluctuations LED lighting Light emitting diodes Lighting Modulation Power factor correction Thyristors TRIAC dimmer Voltage fluctuations
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creator	Hyunchul Eom Youngjong Kim Yongsang Shin
description	LED lighting driver design in TRIAC dimming application has been faced with the difficulties of dimmer compatibility due to low LED power. The LED current dimming is basically controlled by primary side regulation with feedback modulation in the proposed TRIAC dimmable driver. With system compactness and better dimmable compatibility, passive bleeder is designed to stabilize TRIAC turn-on and turn-off operation. Filter discharger is also introduced to keep uniformity of dimmer output voltage to remove visible flicker. The proposed TRIAC dimmable LED driver has been experimentally verified in 3W LED lamp system.
doi_str_mv	10.1109/EPE.2013.6631916
format	Conference Proceeding
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The LED current dimming is basically controlled by primary side regulation with feedback modulation in the proposed TRIAC dimmable driver. With system compactness and better dimmable compatibility, passive bleeder is designed to stabilize TRIAC turn-on and turn-off operation. Filter discharger is also introduced to keep uniformity of dimmer output voltage to remove visible flicker. 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The LED current dimming is basically controlled by primary side regulation with feedback modulation in the proposed TRIAC dimmable driver. With system compactness and better dimmable compatibility, passive bleeder is designed to stabilize TRIAC turn-on and turn-off operation. Filter discharger is also introduced to keep uniformity of dimmer output voltage to remove visible flicker. The proposed TRIAC dimmable LED driver has been experimentally verified in 3W LED lamp system.</abstract><pub>IEEE</pub><doi>10.1109/EPE.2013.6631916</doi><tpages>5</tpages></addata></record>
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identifier	EISBN: 9781479901166
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language	eng
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source	IEEE Electronic Library (IEL) Conference Proceedings
subjects	Capacitors Fluctuations LED lighting Light emitting diodes Lighting Modulation Power factor correction Thyristors TRIAC dimmer Voltage fluctuations
title	A TRIAC dimmable driver design for high dimmer compatibility in low power LED lighting
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