Attenuator circuit

Details Attenuator circuit Attenuator circuit

1989-05-23

1990-03-27

Beha, Jr., William H.

Electricity: power supply or regulation systems

External or operator controlled

Using an impedance as the final control device

333 81R, G05F 300

Patent

active

049123947

ABSTRACT:
An attenuator circuit is provided which comprises an input node, a first resistor connected at one terminal to a reference potential, a second resistor connected to the other terminal of the first resistor, a first output node which is a connection node of the first resistor and the second resistor, a third resistor connected in parallel with the series circuit of the first and second resistors and being of such a type that a resultant resistive value of the first, second and third resistors is equal to a resistive value of the first resistor, a fourth resistor connected at one terminal to a connection node of the second and third resistors and having a resistive value substantially equal to that of the second resistor, and at least one combination resistor of a ladder configuration connected between the other terminal of the fourth resistor and the input node and having a third output node as a junction of its series circuit portion.

REFERENCES:
patent: 1912719 (1933-06-01), Nicolas
patent: 4238724 (1980-12-01), Klaus
patent: 4280089 (1981-07-01), Van De Plassche et al.

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