| 摘要 |
PURPOSE:To provide a high voltage generating circuit in which the noise of a switch operation for operating a high voltage stabilization control can be prevented from appearing on a screen. CONSTITUTION:A first diode 14, first transistor 13, and a serial circuit constituted of both first oscillation capacitor 15 and a circuit block 10 are connected with the serial circuit constituted of both a primary coil 12 of a fly back transformer 11 and a driving power source 6 in parallel. A circuit block 10 is formed of a parallel circuit constituted of a second oscillation capacitor 16, second diode 17, and second transistor 18. The second transistor 18 operates the switch operation by a driving pulse whose off timing is quickened according as the drop amounts of a high output voltage are increased, and generates a correcter pulse whose crest value is large as the drop amounts of the high output voltage are increased. |
