Code setting circuit with fusible thin film resistors

Details Code setting circuit with fusible thin film resistors Code setting circuit with fusible thin film resistors

1991-07-09

1992-10-06

Pascal, Robert J.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3072021, 307246, 3072965, H03K 1900

Patent

active

051534584

ABSTRACT:
A trimming code setting circuit formed between a first and a second potential source includes a transistor, an inverter, a capacitor and a fusible resistor. The transistor has its source-drain passage connected between the first potential source and an output node. The inverter is connected between the output node and a gate of the transistor. The capacitor is connected between the first potential source and the output node. The resistor is connected between the output node and the second potential source. A steady-state current does not flow after the resistor is cut and this allows an increase in current capability of the circuit. There is no possibility for the trimming codes to change with lapse of time.

REFERENCES:
patent: 4806793 (1989-02-01), Golab
patent: 4843262 (1989-06-01), Abe
patent: 4952823 (1990-08-01), Guo

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