| 摘要 |
A method and an apparatus for reducing radiation of a cathode-ray tube display are provided. According to the invention, the voltage signals of the two terminals of the horizontal deflection yoke are pulses of equal amplitude but opposite polarity. Thus, at positions which is equally apart from the two terminals of the horizontal deflection yoke, the electromagnetic radiation generated from the two terminals during operation of the cathode-ray tube can be substantially cancelled. Thus, the influence of the electromagnetic radiation from the horizontal deflection yoke on a user sits in front of the cathode-ray tube display is effectively reduced to a minimum. Further, it is only required to modify the way of winding in the flyback transformer and the cathode-ray tube remains unchanged. In this way, it requires almost no additional power dissipation for the reduction of the undesired electromagnetic radiation. Therefore, the electromagnetic radiation reduction is achieved and the cost is lowered.
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