Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1989-12-04
1991-01-01
Wong, Peter S.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363124, 363134, 323224, 323266, 3151693, H02M 3335, G05F 100
Patent
active
049823140
ABSTRACT:
A low DC voltage supplied to a low DC voltage receiving terminal is converted into a high DC voltage by a DC-DC step-up circuit. The obtained high DC voltage has an optimal value for driving an electro-luminescence device. This high DC volatage is converted into an AC voltage through a pair of series-connected transistors in a switching circuit ON/OFF-controlled in response to an oscillation output from a multivibrator. The converted voltage is supplied to the electro-luminescence device through a series resonance circuit including the electro-luminescence device and a reactor as an AC drive voltage. At this time, a resonance voltage is fed back to the multivibrator and the switching circuit so as to obtain an appropriate luminance correction capability.
REFERENCES:
patent: 4161023 (1979-07-01), Goffeau
patent: 4212053 (1980-07-01), Sichenzia
patent: 4482848 (1984-11-01), Heal et al.
patent: 4595861 (1986-06-01), Simopoulos et al.
patent: 4633141 (1986-12-01), Weber
patent: 4812736 (1989-03-01), Albach et al.
patent: 4859911 (1989-08-01), Kinnard et al.
Nichia Kagaku Kogyo K.K.
Wong Peter S.
LandOfFree
Power source circuit apparatus for electro-luminescence device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power source circuit apparatus for electro-luminescence device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power source circuit apparatus for electro-luminescence device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2001054