Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1990-10-12
1992-03-10
Laroche, Eugene R.
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
315246, 340781, G09G 310, G09G 330
Patent
active
050952480
ABSTRACT:
An electroluminescent device driving circuit comprising first and second switching devices, a dividing capacitor, an electroluminescent device, a driving power supply, and a current limiting resistor disposed in series between the second switching device and the electroluminescent device is described. The electroluminescent device illuminates when the second switching device is in the on-state (closed). When the second switching device is in the off-state (open), however, the electroluminescent device does not emit light. Since a current limiting resistor is disposed in series with the electroluminescent device and the second switching device, the current that flows through the second switching device when the electroluminescent device is illuminated is reduced. Further, in the event that the second switching device is turned off, it is possible to limit the amount of discharging current from a capacitive load.
REFERENCES:
patent: 3708717 (1973-01-01), Fleming
patent: 4006383 (1977-02-01), Luo et al.
patent: 4087792 (1978-05-01), Asars
patent: 4114070 (1991-09-01), Asars
patent: 4574315 (1986-03-01), Yoshimura
patent: 4602192 (1986-07-01), Nomura et al.
Dinh Tan
Fuji 'Xerox Co., Ltd.
LaRoche Eugene R.
LandOfFree
Electroluminescent device driving circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electroluminescent device driving circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electroluminescent device driving circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2286923