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(接上期)由集成电路组成的水平枕形失真校正电路原理如附图所示。由图可知,场锯齿波电压经 Q362倒相放大,然后经电阻 R362加至枕校集成电路 IC361(TDA8145)第②脚,IC361第⑦脚输出上凸场频抛物波,而第⑤脚输出下凹场频抛物波,C361为场频抛物波形成电容,下凹场频抛物波电压经 L362及 S 校正电容 C442对行扫描锯齿波电流幅度进行调制,从而校正了光栅的水平方向
(Connected) by the integrated circuit composed of pincushion distortion correction circuit principle as shown in the figure. As can be seen from the figure, the field sawtooth voltage Q362 inverting amplification, and then added to the pillow school integrated circuit IC361 (TDA8145) by the resistance R362 ② feet, IC361 ⑦ pin output convex field-frequency parabola, while the first ⑤ pin output Concave field frequency parabola, C361 as the field frequency parabolic capacitor, the concave field frequency parabolic voltage by L362 and S correction capacitor C442 on the line scanning sawtooth wave current amplitude modulation, thus correcting the grating horizontal direction