AC–DC converter using  V  GS ‐multiplier circuit for LED lighting applications | Zendy

Park C. | Zendy; Jang K. | Zendy; Woo S. | Zendy; Yu H. | Zendy; Lee J. | Zendy; Choi J. | Zendy

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AC–DC converter using V GS ‐multiplier circuit for LED lighting applications

Author(s) -

Park C.,

Jang K.,

Woo S.,

Yu H.,

Lee J.,

Choi J.

Publication year - 2013

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

eISSN - 1350-911X

pISSN - 0013-5194

DOI - 10.1049/el.2013.1290

Subject(s) - voltage multiplier , multiplier (economics) , electrical engineering , electronic engineering , physics , computer science , engineering , voltage , power factor , economics , macroeconomics , voltage optimisation

A floating‐voltage DC source is proposed for simple AC–DC conversion. A conventional V GS ‐multiplier circuit is modified with an additional control current signal in order to achieve variable output voltage. By modulating this control signal, the output voltage can track the input one so that the difference between the input and output voltages can be maintained to be constant with respect to varying the rectified input voltage. The proposed circuit is easily adopted for driving a light‐emitting diode (LED) string, which provides a cost‐effective solution for LED lighting applications.

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