Electric lamp and discharge devices: systems – Cathode ray tube circuits – Power supply from deflection circuit source
Patent
1971-01-28
1976-04-06
Wilbur, Maynard R.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Power supply from deflection circuit source
315402, 315410, H01J 2970
Patent
active
039492702
ABSTRACT:
A high voltage regulating circuit has a cathode-ray tube, horizontal deflection means comprising a horizontal deflection output transistor and a horizontal deflection coil for generating a saw-tooth current therein, high voltage generating means connected with the anode of the cathode-ray tube for supplying a high D.C. voltage to the anode thereof and comprising a high voltage generating output transistor, a flyback transformer and a high voltage rectifier, a voltage source, a variable impedance means connected between the voltage source and the high voltage generating means, and a control signal supply means. The control signal is supplied to the impedance means to control the impedance thereof so as to control the voltage supplied to the high voltage generating means thereby maintaining constant the high D.C. voltage supplied to the anode of the cathode-ray tube.
REFERENCES:
patent: 2697798 (1954-12-01), Schlesinger
patent: 2997622 (1961-08-01), Claypool
patent: 3721858 (1973-03-01), Shimizu
Akatsu Mitsuharu
Miyazaki Gentaro
Buczinski S. C.
Hitachi , Ltd.
Wilbur Maynard R.
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