Design optimization of coil distributions in deflection yoke for color picture tube

Author

Joe, Myung Cheol ; Kang, Byung Hoon ; Koh, Chang Seop ; Joo, Kuan Jung

Author_Institution

CAD/CAM Res. Lab., Samsung Electro-Mech. Co. Ltd., Kyung Ki, South Korea

Volume

32

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

1665

Lastpage

1668

Abstract

A magnetic deflection system, which has both the horizontal and vertical coils, ferrite core, permanent magnet and coma free coils, is analyzed numerically using a volume integral equation type moment method. In this algorithm, the effects of the auxiliary devices such as permanent magnets and coma free coils can be easily considered. After finding the distribution of the magnetic induction inside the tube and electron beams trajectories, the screen characteristics are calculated. Finally the distribution of the horizontal coil is optimized by using an evolution strategy to get the minimum NS distortion and convergence among the red, green and blue beams at the screen

Keywords

coils; integral equations; method of moments; optimisation; television picture tubes; NS distortion; coil distributions; color picture tube; coma free coils; convergence; deflection yoke; design optimization; electron beam trajectories; evolution strategy; ferrite core; magnetic deflection system; magnetic induction; moment method; numerical algorithm; permanent magnets; screen characteristics; volume integral equation; Coils; Design optimization; Electron beams; Electron tubes; Ferrites; Integral equations; Magnetic analysis; Magnetic cores; Moment methods; Permanent magnets;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.497575

Filename

497575