H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/109, 323/2
H04N 5/44 (2006.01) H04N 3/185 (2006.01)
Patent
CA 1189963
ABSTRACT OF THE DISCLOSURE A saturating core power supply for a television receiver includes a saturable reactor having a magnetizable core and a winding located thereon. Exciting current for the saturable reactor is developed from a source of unregulated input voltage. A magnetic flux is generated in the magnetizable core that links the reactor winding to develop an alternating polarity output voltage. A capacitor develops a circulating current that generates a magnetizing force in a core section associated with the reactor winding. A permanent magnet biases the core to produce a second magnetizing force in the associated core section. The resultant of the two magnetizing forces develops a magnetic flux that substantially saturates the magnetizable material of the associated core section during each cycle of the alternating polarity output voltage to regulate the output voltage. The permanent magnet biasing provides temperature stability of the output voltage because the tendency of the output voltage to vary with temperature variations in the magnetizable material of the associated core section is substantially offset by the accompanying temperature variations of the biasing strength of the permanent magnet. A high voltage generator of the television receiver is responsive to the regulated alternating polarity output voltage to produce a temperature stable, regulated ultor voltage at a picture tube ultor terminal.
403641
Clayburn Randall C.
Willis Donald H.
Morneau Roland L.
Rca Corporation
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