The present invention provides a high pressure stabilization circuit of a multi-sink monitor.;The high voltage stabilization circuit includes a primary coil having a first coil and a second coil to which a collector output of a horizontal output transistor is commonly applied to one side and a separate predetermined voltage is applied to the other side, and the primary coil. A flyback transformer comprising a secondary coil for converting a pulse voltage of the high voltage; A capacitor and a first diode having a parallel configuration connected between the applied power supply and the other side of the first coil to apply the predetermined voltage to the other side of the first coil from the applied power supply; A mode adjusting circuit which receives a multi-sink signal and outputs a driving signal in a high frequency mode; A horizontal drive transistor operated by a drive signal of the mode control circuit; The gate is connected to the collector of the horizontal drive transistor, the drain is connected to the applied power supply, and the source is connected to the other side of the second coil via a second diode to operate in the operation of the horizontal drive transistor in the high frequency mode. It characterized in that it comprises a field effect transistor.;Accordingly, even if any frequency of the high or low frequency is input, the high pressure output from the FBT always has a stable and stable value.
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