Multiple gun cathode ray tube testing, cleaning and...

Details Multiple gun cathode ray tube testing, cleaning and... Multiple gun cathode ray tube testing, cleaning and...

H - Electricity

01

J

316/1, 316/3

H01J 9/50 (2006.01) H01J 9/42 (2006.01)

Patent

CA 1084106

OPERATING POINT REGULATION FOR A CORONA DISCHARGE DEVICE Abstract of the Disclosure A control circuit for a corona discharge device in which the high voltage to the corona wire is electronically controlled in response to an error voltage generated by summing a reference and a sense current. In one embodi- ment the sense current is proportional to the screen volt- age and in another embodiment the sense current is the current to the photoconductor. In each case the sense current is isolated in a single resistor. The high voltage is adjusted by utilizing the error voltage to adjust the control voltage to the high voltage power supply.

297520

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