[1] Gu Wei, Yang Minyi, Zhao Hongping, Yang Xiaowei, et al. S-correction in very slim CRTs [J]. Journal of Southeast University (English Edition), 2005, 21 (3): 272-276. [doi:10.3969/j.issn.1003-7985.2005.03.006]
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S-correction in very slim CRTs(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 21
- Issue:
- 2005 3
- Page:
- 272-276
- Research Field:
- Electronic Science and Engineering
- Publishing date:
- 2005-09-30
Info
- Title:
- S-correction in very slim CRTs
- Author(s):
- Gu Wei; Yang Minyi; Zhao Hongping; Yang Xiaowei; Lei Wei
- Department of Electronic Engineering, Southeast University, Nanjing 210096, China
- PACS:
- TN141
- DOI:
- 10.3969/j.issn.1003-7985.2005.03.006
- Abstract:
- To correct the S-distortion in large deflection angle cathode-ray tubes(CRTs), ideal deflection current waveforms are proposed to realize S-correction.Analysis was done for homogenous and non-homogenous magnetic fields, plane and curved screen.For the convenience of circuit design, high order sine waveforms are used to approach the ideal deflection current.After optimization, the deflection current is acceptably close to the ideal one, for a deflection angle range from 90° up to 140°.Harmonic current rank rises to four as the deflection angle reaches 140°.A ladder-type driving circuit to realize these sine wave series is also presented.Simulation and experiments prove the proposed method can correct the S-distortion in a very slim CRT.
References:
[1] Tong Linsu.Status quo and prospect of display [J].Optoelectronic Technology, 2001, 21(1):1-16.(in Chinese)
[2] Dasgupta Basab B.Magnetic field due to a thick infinitely long coil of arbitrary cross-section [A].In:SID Digest[C].2003.50-53.
[3] Wang Shifu, Ren Zhiyuan.Theoretical exploration on S-correction of deflection current [J].Television Technology, 1998(2):33-35.(in Chinese)
[4] Cao Yuxiu, Tong Xipeng, Yang Xiaosong, et al.A CSCW method for designing CRT correcting lens [A].In:Proceedings of the 7th International Conference on Computer Supported Cooperative Work in Design [C].Rio de Janeiro, Brazil, 2002.189-192.
[5] Elders.Concise manual deflection [M].Philips Co.Ltd, 1988.
[6] Hiratani T, Matsuoka H, Inoue T.Investigation of the magnetization behavior of tension band for CRT [A].In:Proceeding of 7th ASID [C].2002.143-146.
[7] Zhu Hongqing, Wang Miaokang, Huang Biaolin.Characteristics and scanning circuit of camel CRT [A].In:International Vacuum Electronics Conference [C].2002.276-277.
Memo
- Memo:
- Biographies: Gu Wei(1979—), male, graduate;Lei Wei(corresponding author), male, doctor, professor, lw@seu.edu.cn.