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用来调节亮度激励信号的比例,使之适应荧光粉的发光效率等参数差异,保证接收高亮度时不带色。启动图1所示仿真电路,反复按压“R”键或“Shift+R”键,发现电压表读数不断变化。这说明调节R102,可以改变电路的静态工作点,使黑电平时显像管的阴极电压刚好对应蓝枪截止电压。如果改变R121的大小,可以观察得到输出基色信号的幅度变化。亮平衡的调节正是通过调节基色信号的幅度来改
Used to adjust the brightness of the excitation signal ratio, so that it can adapt to the phosphor luminous efficiency and other parameters, to ensure that when receiving high brightness without color. Start the simulation circuit shown in Figure 1 and press “R” or “Shift + R” repeatedly to find that the voltmeter reading is constantly changing. This shows that the adjustment R102, you can change the static operating point of the circuit, so that when the black cathode tube cathode voltage corresponds exactly to the blue gun cut-off voltage. If you change the size of R121, you can observe the output of the primary color signal amplitude changes. Bright balance adjustment is by adjusting the amplitude of the primary color signal to change