A LED current balancing driver with magnetizing inductance energy recycling considered

Author

Hwu, K.I. ; Tu, W.C. ; Hong, Ming-Jie

Author_Institution

Dept. of Electr. Eng., Nat. Taipei Univ. of Technol., Taipei, Taiwan

fYear

2012

fDate

5-9 Feb. 2012

Firstpage

975

Lastpage

979

Abstract

In this paper, a LED current balancing driver is presented, which is based on the current balancing transformer with magnetizing inductance energy recycling considered. Such a driver has the main power stage constructed by one Zeta-type converter. Hence, the energy stored in the magnetizing inductance is released to the energy-transferring capacitor, thereby causing energy recycling to be achieved. In this paper, a detailed illustration of the basic operating principles of the proposed LED driver is first given, and finally some experimental results are provided to demonstrate its effectiveness.

Keywords

driver circuits; light emitting diodes; power convertors; power transformers; recycling; LED current balancing driver; Zeta-type converter; current balancing transformer; energy-transferring capacitor; magnetizing inductance energy recycling; Capacitors; Demagnetization; Inductance; Light emitting diodes; Lighting; Magnetic tunneling; Resistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE

Conference_Location

Orlando, FL

Print_ISBN

978-1-4577-1215-9

Electronic_ISBN

978-1-4577-1214-2

Type

conf

DOI

10.1109/APEC.2012.6165937

Filename

6165937