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十二、水平枕形校正电路 大屏幕彩电显像管偏转角为110°左右,必须采用新的校正电路来校正枕形失真,东芝288D6C型彩电枕形校正电路如图12所示。 同样是利用场频抛物波对行扫描锯齿波电流幅度的调制原理进行枕形校正,亦即场频锯齿波ZVp-p电压经Q362例相放大,由R362传送到双运放集成电路IC361(TDA8145)的②脚,经内部放大,其一路在⑦脚输出3.2Vp-p上凸场频抛物波,另一路再经内部倒相放大,在⑤脚输出
Twelve, the level of pincushion correction circuit Large screen color TV tube deflection angle of 110 ° or so, you must use a new correction circuit to correct the pincushion distortion, Toshiba 288D6C-type color TV pincushion correction circuit shown in Figure 12. The same is the use of field parabolic wave line sawtooth wave current amplitude modulation principle of pincushion correction, that is, the vertical frequency sawtooth ZVp-p voltage by Q362 cases amplified by R362 sent to the dual operational amplifier IC IC361 (TDA8145 ) ② feet, amplified by the internal, all the way in the ⑦ feet output 3.2Vp-p on the pitch field parabola, the other way through the internal phase inversion, the output in the ⑤