Current controller

Details Current controller Current controller

1992-02-28

1994-01-25

Wambach, Margaret R.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307228, 307263, 307572, 307576, H03K 1716

Patent

active

052818705

ABSTRACT:
A current controller includes a first MOSFET of P type connected at a drain to a first node, at a gate to the input terminal and at a source to a power supply, a second MOSFET of N type connected at a drain to the first node via a first resistor, at a gate to the input terminal and at a source to ground, a third MOSFET of N type connected at a drain to the output terminal, at a gate to the first node via a second resistor and at a source to ground, and a capacitor connected between the gate of the third MOSFET and the power supply. The first and second resistors and the capacitor are set so that the maximum changing rates of rising and falling currents supplied from the output terminal through the third MOSFET are equalized. Therefore, levels of low level data are equalized between the positive and negative sides.

REFERENCES:
patent: 4897559 (1990-01-01), Ho
patent: 5068553 (1991-11-01), Love
patent: 5120992 (1992-06-01), Miller et al.
patent: 5120999 (1992-06-01), Schreck et al.
patent: 5140194 (1992-08-01), Okitakan
Unexamined Applications published by the Japanese Government. Title Patent Abstracts of Japan, issued Jan. 29, 1990, Abstract No: 1-276402(A) entitled "Magnetic Recording and Reproducing Device".

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