Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1983-01-25
1987-01-06
Wan, Gene
Amplifiers
With semiconductor amplifying device
Including differential amplifier
H03F 345
Patent
active
046349952
ABSTRACT:
An output section of an electronic circuitry having differentially connected transistors is connected to the emitter of a first transistor having an inverted conductivity type relative to that of differentially connected transistors and to the collector of a second transistor in combination with the first transistor to constitute an inverted Darlington amplifier. The output current is derived from the emitter of the second transistor, so that the electronic circuitry can be operated under the application of a low supply voltage and suited for an integration circuit.
REFERENCES:
patent: 4262220 (1981-04-01), Delacruz
patent: 4410859 (1983-10-01), Kuwahara
patent: 4494075 (1985-01-01), Yoshihisa et al.
Hirose Koichi
Kudo Mitsuru
Nakagawa Isao
Okada Yoshinori
Yamamoto Akihiro
Hitachi , Ltd.
Wan Gene
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