Output circuit including current mirror circuits

Details Output circuit including current mirror circuits Output circuit including current mirror circuits

1993-04-26

1994-07-12

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307443, H03K 1716, H03K 1920

Patent

active

053291778

ABSTRACT:
The invention provides an output circuit in a semiconductor integrated circuit which comprises an input terminal for receiving input signals controlling output circuits, an output terminal for delivering output signals driving a load device being connected to the output terminal, high and low voltage supply lines for supplying high and low voltage driving the output circuit, a first current mirror circuit on its output stage including a single transistor being connected between the high voltage supply line and the output terminal, a second current mirror circuit on its output stage including a single transistor being connected between the low voltage supply line and the output terminal, a first logic circuit being connected between the input terminal and the first current mirror circuit for receiving input signals from the input terminal for a subsequent controlling of the first current mirror circuit, and a second logic circuit being connected between the input terminal and the second current mirror circuit for receiving input signals from the input terminal for a subsequent controlling of the second current mirror circuit.

REFERENCES:
patent: 4694201 (1987-09-01), Jason
patent: 4752703 (1988-06-01), Lin
patent: 5039886 (1991-08-01), Nakamura
patent: 5128561 (1992-07-01), Montegari
patent: 5162673 (1992-11-01), Ohi

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