省エネ対応ばらつき対策偏向ヨークと偏向パワーの高精度計算法

Abstract

We quantitatively analyzed the real cause of convergence fluctuations in power-saved rectangular cone deflection yokes, and we found that minimizing the manufacturing deviations of the ferrite core lessened the convergence fluctuations. By using magnetic field simulations of several types of deflection yokes in addition to the above analysis, we solved the problems of power saving and convergence fluctuations. Additionally, we proved that this idea could be applied to large sizes and wide-angle deflection yokes for TV. Furthermore, we established an accurate power estimation method that is essential to the power-saving system.