Electric lamp and discharge devices: systems – Cathode ray tube circuits – Power supply from deflection circuit source
Patent
1981-11-16
1983-07-05
Blum, Theodore M.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Power supply from deflection circuit source
3581941, H01J 2970
Patent
active
043920900
ABSTRACT:
In a television receiver with a regulated power supply that is responsive to the state of a remote on/off command signal, a power oscillator is coupled to an unregulated direct voltage source for developing an alternating input voltage of a frequency determined by the frequency of operation of the oscillator. The oscillator is provided with a frequency control terminal that controls the oscillator frequency, depending upon a control signal applied to the terminal. A ferroresonant or self-regulating circuit is energized by the alternating input voltage to produce a regulated supply voltage that in turn energizes a load circuit within the television receiver. A remote control circuit responsive to the on/off command signal applies a control signal to the frequency control terminal of the oscillator such that during the on-state of the command signal the oscillator operates at a frequency that permits normal, ferroresonant operation of the self-regulating circuit and that during the off-state of the command signal, changes the oscillator frequency to a different one that is high enough to disable the ferroresonant operation of the self-regulating circuit. The power supply is thereby placed in the standby condition wherein the television display load circuit is substantially deenergized.
REFERENCES:
patent: 3860748 (1975-01-01), Everhart et al.
patent: 4024577 (1977-05-01), Diethelm
patent: 4282460 (1981-08-01), Luz et al.
Laboratories RCA Ltd. Report No. MRZ-240-E, Apr. 20, 1978, "ITR Switched Mode Power Supply for Isolated Chassis and Thyristor Deflection", W. Bohringer & G. Forster.
Luz David W.
Rinehart James K.
Willis Donald H.
Blum Theodore M.
Laks Joseph
Rasmussen P. J.
RCA Corporation
Whitacre E. M.
LandOfFree
Remote responsive television receiver ferroresonant power supply does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Remote responsive television receiver ferroresonant power supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remote responsive television receiver ferroresonant power supply will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1442160