Circuit for energizing electroluminescent panel

Details Circuit for energizing electroluminescent panel Circuit for energizing electroluminescent panel

1996-08-27

1998-02-10

Krishnan, Aditya

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

G09G 310

Patent

active

057173176

ABSTRACT:
A circuit for energizing an electroluminescent panel of a portable data collection device is disclosed. The circuit includes voltage step up circuit and a switching circuit. The voltage step up circuit converts a +5 volt DC signal output from power regulation circuitry of the portable data collection device to a +100 volt essentially constant DC signal. The voltage step up circuit includes a switching regulation integrated circuit chip coupled in series to a toroid inductor. The inductor is coupled through a diode to a smoothing capacitor. The switching circuit converts the +100 volt DC signal to effectively a .+-.100 volt (200 volts peak-to-peak), 500 Hertz (Hz) signal across electrodes of the electroluminescent panel. The switching circuit includes a 555 IC timer chip coupled to an H bridge configuration of switching transistors.

REFERENCES:
patent: 5345146 (1994-09-01), Koenck et al.

Affiliated with

Also associated with

Rating

Circuit for energizing electroluminescent panel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for energizing electroluminescent panel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for energizing electroluminescent panel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2079809