Electric lamp and discharge devices: systems – Cathode ray tube circuits – Power supply from deflection circuit source
Patent
1982-05-28
1984-05-01
Blum, Theodore M.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Power supply from deflection circuit source
323310, 363 75, 315400, H01J 2970
Patent
active
044464053
ABSTRACT:
To regulate a supply voltage for a television receiver load circuit, such as the ultor voltage for a high voltage circuit, the primary winding of a transformer is coupled to a source of alternating input voltage for developing an alternating polarity voltage across a secondary winding of the transformer. A saturable reactor includes a magnetizable core with a reactor winding wound around the core. The reactor winding and the transformer secondary winding are conductively coupled to develop an alternating polarity voltage across the reactor winding. The transformer secondary winding is magnetically isolated from the saturable reactor such that the magnetic flux flowing in the reactor core does not link the transformer secondary winding. A capacitor is coupled to the saturable reactor winding for developing a circulating current that aids in magnetically saturating a portion of the reactor core associated with the reactor winding. The voltages across the conductively coupled transformer secondary winding are thereby regulated. The high voltage load circuit is coupled to a third winding of the transformer and is energized by the regulated alternating polarity supply voltage appearing across the third winding.
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Blum Theodore M.
Laks J. J.
Rasmussen P. J.
RCA Corporation
Whitacre E. M.
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