Transformer Coupled Recycle Snubber for High-Efficiency Offline Isolated LED Driver With On-Chip Primary-Side Power Regulation

This paper presents a high-efficiency offline isolated LED driver based on a flyback converter. In order to achieve high power conversion efficiency as well as a low-cost design, a simple passive lossless turn-off snubber is proposed to reduce the switching loss of the power switch. A primary-side p...

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Veröffentlicht in:	IEEE transactions on industrial electronics (1982) 2014-12, Vol.61 (12), p.6710-6719
Hauptverfasser:	Jung, Seungchul, Cho, Gyu-Hyeong
Format:	Artikel
Sprache:	eng
Schlagworte:	AC-DC power converters Control Electric potential Energy conversion efficiency Joining Light emitting diodes Snubbers Switches Switching Voltage Zero voltage switching
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container_title	IEEE transactions on industrial electronics (1982)
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creator	Jung, Seungchul Cho, Gyu-Hyeong
description	This paper presents a high-efficiency offline isolated LED driver based on a flyback converter. In order to achieve high power conversion efficiency as well as a low-cost design, a simple passive lossless turn-off snubber is proposed to reduce the switching loss of the power switch. A primary-side power regulation scheme is also proposed to compensate for forward voltage variation and aging caused by process and temperature variations. The proposed control scheme is designed and fabricated on-chip using a 0.35- μm BCDMOS process. Test results of the proposed LED driver show an efficiency level that exceeds 83% (up to 90%) in an output range of 5-10 W with an input range of 85-265 V AC .
doi_str_mv	10.1109/TIE.2014.2316221
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In order to achieve high power conversion efficiency as well as a low-cost design, a simple passive lossless turn-off snubber is proposed to reduce the switching loss of the power switch. A primary-side power regulation scheme is also proposed to compensate for forward voltage variation and aging caused by process and temperature variations. The proposed control scheme is designed and fabricated on-chip using a 0.35- μm BCDMOS process. Test results of the proposed LED driver show an efficiency level that exceeds 83% (up to 90%) in an output range of 5-10 W with an input range of 85-265 V AC .</description><identifier>ISSN: 0278-0046</identifier><identifier>EISSN: 1557-9948</identifier><identifier>DOI: 10.1109/TIE.2014.2316221</identifier><identifier>CODEN: ITIED6</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>AC-DC power converters ; Control ; Electric potential ; Energy conversion efficiency ; Joining ; Light emitting diodes ; Snubbers ; Switches ; Switching ; Voltage ; Zero voltage switching</subject><ispartof>IEEE transactions on industrial electronics (1982), 2014-12, Vol.61 (12), p.6710-6719</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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Test results of the proposed LED driver show an efficiency level that exceeds 83% (up to 90%) in an output range of 5-10 W with an input range of 85-265 V AC .</description><subject>AC-DC power converters</subject><subject>Control</subject><subject>Electric potential</subject><subject>Energy conversion efficiency</subject><subject>Joining</subject><subject>Light emitting diodes</subject><subject>Snubbers</subject><subject>Switches</subject><subject>Switching</subject><subject>Voltage</subject><subject>Zero voltage switching</subject><issn>0278-0046</issn><issn>1557-9948</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkc1LAzEQxYMoWD_ugpeAFy9bk-wmmxylVlsoVLTiMaTpxEa2m5p0lV78202pePA0MO_3hpl5CF1Q0qeUqJvZeNhnhFZ9VlLBGD1APcp5XShVyUPUI6yWBSGVOEYnKb2TTHLKe-h7Fk2bXIgriHgQunUDC_wEdmsbwM9tN5_nfpbxyL8ti6Fz3npo7RZPnWt8C3icQmM22TQZ3uG76D8z_-o3Szxti8HSr_Fj9CsTt8WzXwB-DF9Zf4K3Lpt8aM_QkTNNgvPfeope7oezwaiYTB_Gg9tJYcuabgpeCSOtJLYqhbRmwUvjSlkpY8xiLpiZu7pSwDi1jnEFTkHtrKVMccmByao8Rdf7uesYPjpIG73yyULTmBZCl3R-GSE1EWyHXv1D30MX27ydpjxjQikuMkX2lI0hpQhOr_d3akr0LhCdA9G7QPRvINlyubd4APjDRS25kqz8AUfZhuA</recordid><startdate>201412</startdate><enddate>201412</enddate><creator>Jung, Seungchul</creator><creator>Cho, Gyu-Hyeong</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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In order to achieve high power conversion efficiency as well as a low-cost design, a simple passive lossless turn-off snubber is proposed to reduce the switching loss of the power switch. A primary-side power regulation scheme is also proposed to compensate for forward voltage variation and aging caused by process and temperature variations. The proposed control scheme is designed and fabricated on-chip using a 0.35- μm BCDMOS process. Test results of the proposed LED driver show an efficiency level that exceeds 83% (up to 90%) in an output range of 5-10 W with an input range of 85-265 V AC .</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TIE.2014.2316221</doi><tpages>10</tpages></addata></record>
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subjects	AC-DC power converters Control Electric potential Energy conversion efficiency Joining Light emitting diodes Snubbers Switches Switching Voltage Zero voltage switching
title	Transformer Coupled Recycle Snubber for High-Efficiency Offline Isolated LED Driver With On-Chip Primary-Side Power Regulation
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