Transformer-coupled drive network for a TFEL panel

Details Transformer-coupled drive network for a TFEL panel Transformer-coupled drive network for a TFEL panel

1985-07-31

1988-03-22

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340778, 340781, 340805, G09G 328

Patent

active

047332280

ABSTRACT:
A drive network for a TFEL panel includes a series resonant drive circuit for producing pulses of a predetermined frequency, a transformer for coupling the drive circuit to a TFEL panel, and symmetrically driven push-pull row drivers, a plurality of which may be implemented on a single integrated circuit chip. The transformer includes switching means for alternately providing positive and negative high-voltage pulses for the row drivers on alternate frames of data. The network formed by the series resonant drive circuit and the TFEL panel is a series RLC circuit which is driven at its resonant frequency.

REFERENCES:
patent: 3749977 (1973-07-01), Sliker
patent: 3991416 (1976-11-01), Byles et al.
patent: 4070663 (1978-01-01), Kanatani et al.
patent: 4349816 (1982-09-01), Miller et al.
patent: 4492957 (1985-01-01), Marentic
patent: 4594589 (1986-06-01), Ohba et al.
patent: 4633141 (1986-12-01), Weber
"A Low-Power Drive Scheme for AC TFEL Displays," Marvin L. Higgins, SID 85, Society for Information Display Digest.
Sharp Symmetric Drive.

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