Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1985-11-26
1987-08-18
Wan, Gene
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330352, H03F 345
Patent
active
RE0324795
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.
Telefunken electronic GmbH
Wan Gene
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