Deflection yoke having horizontal auxiliary coils for reducing u

Details Deflection yoke having horizontal auxiliary coils for reducing u Deflection yoke having horizontal auxiliary coils for reducing u

1991-04-22

1993-06-15

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313431, 313413, 335210, 335214, H01J 2970

Patent

active

052202410

ABSTRACT:
A deflection yoke includes a horizontal deflection coil including a pair of saddle-shaped coils having a front transverse conductor and a rear conductor; a pair of void-core type horizontal auxiliary coils disposed only on the front transverse conductor, each auxiliary coil having a front semi-circular arc side part, a rear semi-circular arc side part, a right straight side part connected between the front semi-circular arc side part and a left straight side part connected between the front semi-circular arc side part, the horizontal auxiliary coils being connected with the horizontal deflection coil, such that a horizontal deflection current flows in the horizontal auxiliary coils in a direction corresponding to a more intense leak magnetic field generated by the front transverse conductor of the horizontal deflection coil; and a coil holder for holding the horizontal auxiliary coils such that the front semi-circular arc side parts are positioned along the front transverse conductor of the pair of saddle-shaped coils, respectively, and the rear semi-circular arc side parts are positioned adjacent a middle part of a core which is positioned behind the horizontal deflection coil.

REFERENCES:
patent: 4992697 (1991-02-01), Penninga et al.
patent: 5049847 (1991-09-01), Okuyama et al.
patent: 5124613 (1992-06-01), Park et al.

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