Auxiliary coil driver circuit for a cathode ray tube

Details Auxiliary coil driver circuit for a cathode ray tube Auxiliary coil driver circuit for a cathode ray tube

2007-02-27

2007-02-27

Chen, Shih-Chao (Department: 2821)

Electric lamp and discharge devices: systems

Cathode ray tube circuits

With secondary emission stage in the cathode-ray tube

C315S008000

Reexamination Certificate

active

10511837

ABSTRACT:
A magnetic field compensation winding arrangement for a cathode ray tube includes a magnetic field compensation winding positioned on the cathode ray tube to compensate for an ambient magnetic field. An operational amplifier is used for generating a magnetic field compensation current in the winding. A pair of digital-to-analog converters are used for generating a pair of signals, respectively, that are coupled to the amplifier to control the magnetic field compensation current.

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Copy of search report dated Jun. 15, 2003.

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