VFET Driving circuits for plasma panel display systems

Details VFET Driving circuits for plasma panel display systems VFET Driving circuits for plasma panel display systems

1984-11-27

1986-02-18

Dixon, Harold

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315209R, 315216, 315240, H05B 3702

Patent

active

045715270

ABSTRACT:
A driving system for a plasma panel display which uses VFETs for output switches controls the transition time of an output waveform to a constant time. Transformerless circuitry for communicating low voltage digital logic signals across a floating boundary to VFET control circuitry is provided. Low voltage control circuitry is isolated from high voltage sources by semiconductor circuitry which eliminates the need for transformer isolation techniques. In an alternative embodiment, the transition of an output waveform is controlled at a constant slew rate.

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Gas Panel Selection Circuit with Field Effect Transistors by Larsen and Wood; IBM Tech. Discl. Bull., vol. 18, No. 4, Sep. 1975, pp. 1071, 1072.
IBM Technical Disclosure Bulletin, vol. 21, No. 9, 2/79, "Magnetically Controlled Sustain Driver", to W. J. Martin, et al., pp. 3675-3676.

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