Browse > Article
http://dx.doi.org/10.4313/JKEM.2006.19.9.843

Electrical and Thermal Characteristics of a Burst Dimming Piezoelectric Inverter  

Shin, Hoon-Beom (건국대학교 전기공학과)
Ahn, Hyung-Keun (건국대학교 전기공학과)
Han, Deuk-Young (건국대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.19, no.9, 2006 , pp. 843-848 More about this Journal
Abstract
This paper explains the design and fabrication of an inverter for LCD backlight using a multilayer piezoelectric transformer. That inverter is operated by the burst dimming method whose dimming signal is controlled by the duty ratio of rectangular switching signal to a PWM controller. The brightness of CCFL's are investigated according to the various dimming signals, and when those CCFL's are turned on, the temperature distributions on the piezoelectric transformer and circuit components of the inverter are also investigated by a thermo-camera.
Keywords
Piezoelectric inverter; Push-pull inverter; Burst dimming; CCFL; Thermal characteristics;
Citations & Related Records
연도 인용수 순위
  • Reference
1 C. Y. Lin, 'Development of piezoelectric transformer converter', VPEC Power Electron. Sem. Proc, p. 79, 1993
2 H. Kawai, Y. Sasaki, T. Inoue, T. Inoi, and S. Takahashi, 'High power transformer employing piezoelectric ceramics', Jpn. J. Appl, Phys., Vol. 35, p. 5015, 1996
3 박지식, '압전 세라믹 변압기의 구동회로 기술', 전기전자재료, 12권, 5호, p. 17, 1999
4 S. Hamamura and T. Zaitsu, 'AC-DC converter using piezoelectric transformer', NEC Technical Report, Vol. 51, No.4, 1998
5 C. Y. Lin and F. C. Lee, 'Piezoelectric transformer and its applications', VPEC Power Electron. Sem. Proc., p. 607, 1995
6 M. Shoyarna, K. Horikoshi, T. Ninomiya, T. Zaitsu, and Y. Sasaki 'Operation Analysis of the Push-pull Piezoelectric Transformer Inverter', IEEE APEC'97 Record, p. 573, 1997
7 'Piezoelectric ceramics items', Tamura Corporation catalog, p. 72, 2003
8 'DC/ AC Inverter Piezoelectric Inverter for Cold Cathode Fluorescent Lamp', Empro Technology Corporation catalog
9 Y. Shimada, S. Kawashima, N. Furuhashi, M. Sugimoto, Y. Sato, H. Suzuki, and K. Isobe, 'LCD backlight inverter using piezoelectric transformer', NEC Technical Report, Vol. 48, No. 48, p. 10, 1995