Split chip inverter for EL lamp

Details Split chip inverter for EL lamp Split chip inverter for EL lamp

1995-06-30

1996-01-09

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With auxiliary illumination for display

368227, 3151693, 345102, G04B 1930, G09G 310, G09G 336

Patent

active

054835038

ABSTRACT:
An electronic watch, either digital or analog, includes an EL lamp powered by a split chip inverter having a low voltage portion incorporated into a first semiconductor chip and a high voltage portion incorporated in a second semiconductor chip. The first semiconductor chip preferably includes all the other low voltage circuitry of the watch, e.g. timer/divider circuitry and logic for driving a display.

REFERENCES:
patent: 4527096 (1985-07-01), Kindlmann
patent: 4529322 (1985-07-01), Ueda
patent: 4995016 (1991-02-01), Watanabe
patent: 5093612 (1992-03-01), Herold
patent: 5265071 (1993-11-01), Thorgersen et al.
patent: 5339294 (1994-08-01), Rodgers
patent: 5384577 (1995-01-01), McLaughlin et al.

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