Electric lamp and discharge devices: systems – Cathode ray tube circuits – Power supply from deflection circuit source
Patent
1981-09-03
1983-06-28
Blum, Theodore M.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Power supply from deflection circuit source
358190, 358243, H01J 2970
Patent
active
043908209
ABSTRACT:
The primary winding of a high leakage transformer is coupled to a source of alternating input voltage for developing an alternating supply voltage across a secondary winding of the transformer. A self-regulating, ferroresonant load circuit includes a saturable reactor that has a first winding coupled to the transformer secondary winding for regulating the supply voltage. A high voltage winding of the transformer steps up the supply voltage. The stepped up voltage is rectified to produce an ultor accelerating potential for a color picture tube of a television receiver. If the saturable reactor first winding is disconnected from the transformer secondary winding, the supply voltage and ultor accelerating potential undesirably tend to increase in amplitude. To protect against the emission of excessive X-radiation from the phosphor screen of the picture tube in such an event, the heater filaments of the picture tube cathode electrodes are energized by a second winding of the saturable reactor. If the saturable reactor first winding becomes disconnected, heater energization is removed, producing a blank picture screen.
REFERENCES:
patent: 3433896 (1969-03-01), Sakai et al.
patent: 3798369 (1974-03-01), Dietch
patent: 3798493 (1974-03-01), Manske
patent: 3798497 (1974-03-01), Manske
patent: 3868538 (1975-02-01), Blanchard
patent: 3955115 (1976-05-01), Manske
patent: 3970915 (1976-07-01), Suchko
patent: 4262245 (1981-04-01), Wendt
General Electric Technical Training Manual Supplement, EC-N Chassis & Schematic, published 12/79.
Blum Theodore M.
Laks Joseph
Rasmussen P. J.
RCA Corporation
Whitacre E. M.
LandOfFree
Television receiver ferroresonant load power supply disabling ci does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Television receiver ferroresonant load power supply disabling ci, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Television receiver ferroresonant load power supply disabling ci will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-935792