Regulated voltage supplies for cathode ray tube systems
阅读：291发布：2023-07-19
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1. IN A CATHODE RAY TUBE SYSTEM INVOLVING DEVELOPMENT OF DISPLAY RASTERS COMPRISING RECURRING FIELDS OF SCANNING LINES, SAID SYSTEM INCLUDING A CATHODE RAY TUBE AND RESPECTIVE LINE AND FIELD RATE CATHODE RAY BEAM DEFLECTION CIRCUITS, SAID CATHODE RAY TUBE INCLUDING AN ULTOR ELECTRODE AND ADDITIONAL ELECTRODES, THE OPERATION POTENTIALS FOR SAID ULTOR ELECTRODE AND AT LEAST ONE OF SAID ADDITIONAL ELECTRODES BEING DERIVED IN RESPECTIVE SUPPLY CIRCUITS AT LEAST IN PART VIA RECTIFICATION OF FLYBACK PULSES GENERATED IN SAID LINE RATE DEFLECTION CIRCUIT, SAID SYSTEM BEING SUBJECT TO THE APPEARANCE OF UNDESIRED FIELD RATE VARIATIONS IN PARAMETERS OF SAID LINE RATE DEFLECTION CIRCUIT, REFLECTION OF SAID FIELD RATE VARIATION IN SAID OPERATING POTENTIALS TENDING TO ADVERSELY AFFECT OPERATION OF SAID CATHODE RAY TUBE; A VOLTAGE REGULATING ARRANGEMENT COMPRISING IN COMBINATION: A REGULATING DEVICE HAVING A CONTROL ELECTRODE, SAID REGULATING DEVICE BEING CONNECTED TO SAID ULTOR ELECTRODE AND SERVING AS A CONTROLLABLE LOAD ON SAID ULTOR OPERATING POTENTIAL SUPPLY CIRCUIT; A SOURCE OF CONTROL VOLTAGE SENSITIVE TO VARIATIONS IN THE LOAD PRESENTED BY SAID CATHODE RAY TUBE OF SAID ULTOR OPERATING POTENTIAL SUPPLY CIRCUIT; MEANS PROVIDING A DIRECT CURRENT CONDUCTIVE COUPLING BETWEEN SAID CONTROL VOLTAGE SOURCE AND SAID REGULATING DEVICE CONTROL ELECTRODE FOR CAUSING SAID REGULATING DEVICE TO OPPOSE LONG TERM D.C. VARIATIONS IN SAID ULTOR POTENTIAL CAUSED BY SAID CATHODE RAY TUBE LOAD VARIATIONS; AND MEANS PROVIDING AN EXCLUSIVELY ALTERNATING CURRENT COUPLING BETWEEN THE OPERATING POTENTIAL SUPPLY CIRCUIT FOR SAID ADDITIONAL ELECTRODE AND SAID REGULATING DEVICE CONTROL ELECTRODE FOR CAUSING SAID REGULATING DEVICE TO OPPOSE UNDESIRED FIELD RATE VARIATIONS IN SAID ULTOR POTENTIAL.
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