Power efficient sustain drivers and address drivers for plasma p

Details Power efficient sustain drivers and address drivers for plasma p Power efficient sustain drivers and address drivers for plasma p

1986-09-25

1989-09-12

Boudreau, Leo H.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

3151693, 3151691, 340776, 340777, H05B 3700

Patent

active

048663492

ABSTRACT:
An improved address driver circuit for plasma panels, particularly useful with an independent sustain and address plasma panel. Address pulse generators for one panel address axis are coupled to MOSFET driver devices and provide pulses of a first polarity; and address pulse generators for the other panel address axis are coupled to similar MOSFET driver devices and provide double pulses of a second polarity. With N-channel open-drain MOSFET drivers on both panel address axes, they only need to be designed to pull low. An improved poeer efficient sustain driver for plasma panels including an inductor through which the panel capacitance is charged and discharged, and switch means switched when the inductor current is zero, which permits recovery of the energy otherwise lost in driving the panel capacitance. An independent sustain and address plasma panel with such energy efficient address drivers and sustain drivers. The energy efficient sustain driver can be used with plasma display panels, electroluminescent panels and with liquid crystal panels having inherent panel capacitance. An independent sustain and address panel with N-channel MOSFET drivers on one address axis and P-channel MOSFET drivers on the other address axis, with an address pulse generator providing pulses of a first polarity to the N-channel MOSFETS, and another address pulse generator providing pulses of a second polarity to the P-channel MOSFETS.

REFERENCES:
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patent: 4347509 (1982-08-01), Hardway et al.
patent: 4496879 (1985-01-01), Suste
patent: 4550274 (1985-10-01), Weber
patent: 4570159 (1986-02-01), Criscimagna et al.
H. Tottori, E. Hatabe, F. Isogai and S. Yoshida, "A Driving Circuit for Plasma Display Panels", Society for Information Display, SID 75 Digest, vol. 6, pp. 118-119, Apr. 1975.
W. E. Johnson, E. A. Oster and H. J. Hoehn, "Plasma Display/Memory Panel with Integral Drive Circuitry", Society for Information Display, SID 77 Digest, vol. 8, pp. 20-21, Apr. 1977.
M. L. Higgins, "A Low-Power Drive Scheme for AC TFEL Displays", Society for Information Display, SID 85 Digest, vol. 16, pp. 226-228, Apr.-May, 1985.

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