Staggered sustain voltage generator and technique

Details Staggered sustain voltage generator and technique Staggered sustain voltage generator and technique

1980-01-08

1982-02-16

La Roche, Eugene

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

340805, H05B 4130

Patent

active

043161235

ABSTRACT:
Large values of avalanche current are avoided in a gas discharge display panel by "staggering" in time the application of the sustain voltage waveforms to different portions of the display panel. A plurality of individual sustain circuit modules each having two 100 v FET's are connected to a common sustain circuit module having another two 100 v FET's. The "staggered" sustain operation is provided by selectively controlling the individual sustain circuit modules. The individual and common sustain circuit modules combine to alternatively produce 0-200 v square wave or a 0-100-200 v return-to-midpoint waveform by selectively controlling the FET's.

REFERENCES:
patent: 3959669 (1976-05-01), Peters
patent: 4140944 (1979-02-01), Miller
Konnerth, Operating a Gas-Discharge Panel, IBM. Technical Disclosure Bulletin, vol. 12, No. 12, May 1970, pp. 2240-2241.

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