Method and apparatus for driving an electroluminescent lamp

Details Method and apparatus for driving an electroluminescent lamp Method and apparatus for driving an electroluminescent lamp

1997-08-26

1999-11-02

Shingleton, Michael B

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315209R, 315205, 315244, H05B 3702

Patent

active

059777206

ABSTRACT:
An electroluminescent lamp is driven by a driving circuit that can supply an approximately sinusoidal signal, a bi-directional sawtooth signal or a single-ended sawtooth signal. Switches selectively transfer energy from a battery to an inductor and then from the inductor to the lamp. In one embodiment, the lamp voltage is compared to a reference waveform, such as a sinusoid. The switches are activated responsive to the error between the lamp voltage and reference waveform to minimize the error. The lamp can thus be driven with a closer approximation of the reference waveform.

REFERENCES:
patent: 4170747 (1979-10-01), Holmes
patent: 4208869 (1980-06-01), Hanaoka
patent: 4210848 (1980-07-01), Suzuki et al.
patent: 4277728 (1981-07-01), Stevens
patent: 4412155 (1983-10-01), Isaka et al.
patent: 4443741 (1984-04-01), Tanaka et al.
patent: 4449075 (1984-05-01), D'Onofrio et al.
patent: 4527096 (1985-07-01), Kindlmann
patent: 4899086 (1990-02-01), Hirata et al.
patent: 5313141 (1994-05-01), Kimball
patent: 5349269 (1994-09-01), Kimball

Affiliated with

Also associated with

Rating

Method and apparatus for driving an electroluminescent lamp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for driving an electroluminescent lamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for driving an electroluminescent lamp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2139927