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[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()
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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
Keywords:
S-correction very slim cathode-ray tube(CRT) high order sine wave
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:

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Memo

Memo:
Biographies: Gu Wei(1979—), male, graduate;Lei Wei(corresponding author), male, doctor, professor, lw@seu.edu.cn.
Last Update: 2005-09-20