Amplifiers – With semiconductor amplifying device – Including current mirror amplifier
Patent
1982-08-30
1984-11-27
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including current mirror amplifier
H03F 304
Patent
active
044853521
ABSTRACT:
A current amplifier uses a current mirror arrangement as an operational amplifier whose output has limited swing. The limited swing is achieved through a plurality of series connected diodes connected to a control input of the amplifier and to the output of the operational amplifier. The control input is coupled through a transistor to inhibit the output of the current mirror arrangement. The output node is coupled to an output for the current amplifier through a Darlington arrangement which provides high current gain.
REFERENCES:
patent: 4260955 (1981-04-01), Ahmed
Davies Robert B.
Dotson Robert N.
Null Michael W.
Barbee Joe E.
Motorola Inc.
Mullins James B.
Wan G.
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