Integrated circuit to reduce switching noise

Details Integrated circuit to reduce switching noise Integrated circuit to reduce switching noise

1986-08-29

1989-02-28

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307594, 307303, 307544, 357 2314, 357 46, 357 41, H03K 17687, H03K 513

Patent

active

048088617

ABSTRACT:
A transistor (14) having a plurality of sub-transistors (29a-f) includes a voltage controlling device (45). The voltage controlling device induces a current through an elongated gate (24) producing a voltage drop across the elongated gate (24) by providing a path between the gate and ground (32). The voltage drop across the elongated gate (24) sequentially reduces the gate voltage present at each of the sub-transistors (29a-f), thereby reducing the amount of current which the sub-transistors (29a-f) can conduct. The voltage controlling circuit (45) gradually reduces the current through the gate (24), thereby increasing the amount of current flowing through the sub-transistors (29a-f). The limiting of current through the output transistors (29a-f) for a predetermined time interval reduces the generation of output noise by controlling the rate at which current is changing in that output.

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patent: 4462041 (1984-07-01), Glenn
patent: 4508981 (1985-04-01), Dorlen et al.
patent: 4509067 (1985-04-01), Minami et al.
patent: 4593205 (1986-06-01), Bass et al.
patent: 4725747 (1988-02-01), Stein et al.

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