POWER SUPPLY DEVICE FOR CATHODE-RAY TUBE
PURPOSE:To prevent the break of a horizontal deflecting circuit and a horizontal synchronizing signal source by supplying the pulse voltage generated in the secondary winding of a transformer device, whose primary side the pulse current from the horizontal deflecting circuit flows to, to a switching...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PURPOSE:To prevent the break of a horizontal deflecting circuit and a horizontal synchronizing signal source by supplying the pulse voltage generated in the secondary winding of a transformer device, whose primary side the pulse current from the horizontal deflecting circuit flows to, to a switching transistor TR as the voltage for switching of a high voltage generating part. CONSTITUTION:In a switching circuit, the pulse voltage obtained from an auxiliary winding 6 is given to the gate of a switching FET 21. The anode voltage is high and several kv. to the earth but is divided by a voltage dividing resistor 25, and the voltage generated in a tap D is low and |
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