Drive circuit for a display

Details Drive circuit for a display Drive circuit for a display

1976-03-05

1977-09-13

Trafton, David L.

Communications: electrical

Systems

Portable self-contained

307251, 307270, 340336, 307296A, H01L 2715

Patent

active

040486320

ABSTRACT:
A compact circuit for selectively controlling the operation of a plurality of metal oxide semiconductor field effect transistors (MOSFETs) which drive a readout display, such as that found in a hand-held calculator, or the like. The circuit includes an internal power supply to develop a driving voltage (V.sub.gg), the magnitude of which is substantially boosted with respect to that of the calculator operating voltage (V.sub.DD). The circuit also includes an improved strobe driver connected between the display and the power supply to selectively apply the boosted driving voltage to a control electrode of any one of the plurality of MOSFETs.

REFERENCES:
patent: 3631267 (1971-12-01), Heimbigner
patent: 3660684 (1972-05-01), Padgett et al.
patent: 3806738 (1974-04-01), Chin et al.
patent: 3808468 (1974-04-01), Ludlow et al.
patent: 3925690 (1975-12-01), Spence
patent: 3946245 (1976-03-01), McClaughry
patent: 3947840 (1976-03-01), Craford et al.
patent: 3988617 (1976-10-01), Price
patent: RE27305 (1972-03-01), Polkinghorn et al.

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