Feedback amplifier or threshold value switch for a current feed

Details Feedback amplifier or threshold value switch for a current feed Feedback amplifier or threshold value switch for a current feed

Filed on

1985-11-26

Date issued

1987-08-18

Examiner

Wan, Gene

Patent Class

Amplifiers

SubClass

With semiconductor amplifying device

SubSubClass

Including differential amplifier

Other Related Categories

330352, H03F 345

Type

Patent

Status

active

Patent number

RE0324795

Description

ABSTRACT:
A feedback amplifier which is constructed as a threshold value switch includes a current fed differential stage and additionally comprises two transistors whose emitters are each connected to one output of the differential stage with a first resistor connected between these two outputs and second and third resistors forming operating resistors connected between the supply voltage and the two transistors, each operating resistor being connected to the collector of one transistor and the base of the other transistor respectively.

REFERENCES:
patent: 3408533 (1968-10-01), Gates
patent: 4547744 (1985-10-01), Kasperkovitz
Hurley, "Junction Transistor Electronics", 1958, pp. 425, 434.

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