As shown in the figure, the high-voltage stable circuit diagram of the saturable reactor, when the brightness of the image increases, the electron beam current of the picture tube will increase and cause the high voltage to drop. The increase in the high voltage current also causes the line output tube current to increase, and the current flowing through the control coil L2 increases so that the saturable reactor tends to saturate, and the decrease in Lx causes L to decrease. Compensated for the drop in high pressure. Figure (c) is a high-voltage stabilization circuit for a series-type saturable reactor. The principle of operation is the same as in Figure (a). The integrated line flyback transformer has high harmonic frequency and good voltage modulation characteristics, and generally no high voltage stabilization circuit is added.
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