Interface circuit and voltage-raising circuit including such a c

Details Interface circuit and voltage-raising circuit including such a c Interface circuit and voltage-raising circuit including such a c

1994-06-30

1995-11-07

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

327391, 326 62, 326 68, H03K 1710, H03K 190185

Patent

active

054650690

ABSTRACT:
An interface circuit makes it possible, starting from an input signal varying between a reference level (VR) available on a first terminal and a first voltage level (V1), to deliver an output signal varying between this reference level (VR) and a second voltage level (V2) available on a second terminal. The circuit includes first and second branches each including first and second serially connected complementary transistors and a third branch with serially connected first and second transistors. First and second inverters couple the input terminal to respective control electrodes of the second transistors in the second and third branches. The inverters have response times chosen so that the two transistors of the third branch are never on simultaneously. Thus, short-circuiting the transistors of the second branch during the transient regime creates almost no current spike. It is therefore possible to use transistors with large dimensions in the third branch with respect to the other transistors of the circuit without impairing the efficiency thereof. The interface circuit can be used in a voltage level-shift circuit.

REFERENCES:
patent: 4532436 (1985-07-01), Bismarck
patent: 5045721 (1991-09-01), Yan
patent: 5113097 (1992-05-01), Lee
patent: 5153451 (1992-10-01), Yamamura et al.
patent: 5191233 (1993-03-01), Nakano
patent: 5321324 (1994-06-01), Harder et al.
patent: 5378932 (1995-01-01), Shin et al.

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