Electric lamp and discharge devices: systems – Cathode ray tube circuits – Power supply from deflection circuit source
Patent
1981-04-20
1982-10-05
Blum, Theodore M.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Power supply from deflection circuit source
323310, 315400, H01J 2970
Patent
active
043530141
ABSTRACT:
The primary winding of a high leakage inductance transformer is coupled to a source of alternating input voltage to develop alternating polarity output voltages across tightly coupled secondary windings, including a high voltage winding of the transformer. Various DC supply voltages, including the ultor voltage, are derived from the secondary winding output voltages. To regulate the secondary winding output voltages, a ferroresonant circuit comprising a capacitor and a saturable reactor is coupled as a load circuit to one of the transformer secondary windings. When the saturable reactor magnetically saturates during each half cycle of the alternating polarity output voltage, a circulating current is generated and flows between the saturable reactor and the capacitor. To enhance the power supply efficiency and reduce the temperature rise within the magnetizable core of the saturable reactor, the parameters of the transformer and ferroresonant load circuit are selected so as to generate a relatively low amplitude circulating current. To improve output voltage regulation when a low amplitude circulating current is developed, a compensating drive winding is provided that is magnetically tightly coupled with the primary winding of the high leakage transformer. The compensating drive winding is coupled in series with the saturable reactor winding across the capacitor and polarized relative to the capacitor coupled transformer secondary so as to oppose the tendency of the output voltage amplitude or half-cycle volt-second area to vary with variations in input voltage amplitude.
REFERENCES:
patent: 1985634 (1934-12-01), Fleming
patent: 2432343 (1947-12-01), Short
patent: 2706271 (1955-04-01), Fletcher
patent: 2811689 (1957-10-01), Balint
patent: 2999973 (1961-09-01), Medlar
patent: 3219881 (1965-11-01), Rudaz
patent: 3247449 (1966-04-01), Medlar
patent: 3247450 (1966-04-01), Medlar
patent: 3341766 (1967-09-01), Rhyne, Jr.
patent: 3398292 (1968-08-01), Kuba
patent: 3739255 (1973-06-01), Leppert
patent: 3868538 (1975-02-01), Blanchard
patent: 3988662 (1976-10-01), Hunter
patent: 4019122 (1977-04-01), Ryan
patent: 4075547 (1978-02-01), Wroblewski
patent: 4240013 (1980-12-01), Wedam
Paper presented at Convention of Institute of Television Engineers of Japan, "Stabilized Power Supply Incorporating High Frequency Ferro Resonance Transformer", by T. Kadota and others, dated 10-7-77.
"The Geometry of Regulating Transformers", by N. R. Grossner, IEEE Transactions on Magnetics, vol. Mag. 14, No. 2, Mar. 1978.
Blum Theodore M.
Laks Joseph J.
Rasmussen Paul J.
RCA Corporation
Whitacre Eugene M.
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