Design of High Efficiency Illumination for LED Lighting | Zendy

Yongg Chang | Zendy; HungLiang Cheng | Zendy; Chih-Ming Kuo | Zendy

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Design of High Efficiency Illumination for LED Lighting

Author(s) -

Yongg Chang,

HungLiang Cheng,

Chih-Ming Kuo

Publication year - 2013

Publication title -

international journal of photoenergy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.426

H-Index - 51

eISSN - 1687-529X

pISSN - 1110-662X

DOI - 10.1155/2013/471384

Subject(s) - galvanic isolation , computer science , transformer , efficient energy use , led lamp , light emitting diode , inverter , isolation (microbiology) , electrical engineering , voltage , engineering , microbiology and biotechnology , biology

A high efficiency illumination for LED street lighting is proposed. For energy saving, this paper uses Class-E resonant inverter as main electric circuit to improve efficiency. In addition, single dimming control has the best efficiency, simplest control scheme and lowest circuit cost among other types of dimming techniques. Multiple serial-connected transformers used to drive the LED strings as they can provide galvanic isolation and have the advantage of good current distribution against device difference. Finally, a prototype circuit for driving 112 W LEDs in total was built and tested to verify the theoretical analysis

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