Signal level converting circuit for liquid crystal display devic

Details Signal level converting circuit for liquid crystal display devic Signal level converting circuit for liquid crystal display devic

1994-02-01

1995-11-14

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

327319, H03L 500

Patent

active

054670438

ABSTRACT:
A signal level converting circuit includes an input terminal supplied with an input signal, a reference terminal supplied with a reference voltage, a differential circuit having a first input node, a second input node and an output node, a first level-shift circuit including a first emitter-follower transistor and coupled between the input terminal and the first input node of the differential circuit to level-shift the input signal and supply a level-shifted signal to the first input node, and a second level-shift circuit including a second emitter-follower transistor and coupled between the reference terminal and the second input node of the differential circuit to level-shift the reference voltage and supply a level shifted reference voltage to the second input node.

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patent: 5237220 (1993-08-01), Kurashima
patent: 5296760 (1994-03-01), Oertle et al.
Sedra & Smith, Microelectronic Circuits, Saunders College Publishing, Philadelphia, 1991.
Patent Abstracts of Japan, vol. 12, No. 86, 18 Mar. 1988.

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