Amplifiers – With semiconductor amplifying device – Including combined diverse-type semiconductor device
Patent
1990-10-05
1992-02-04
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including combined diverse-type semiconductor device
330307, H03F 316
Patent
active
050862820
ABSTRACT:
A high frequency amplifying device comprises a field effect transistor-bipolar transistor darlington pair. Such a device combines the main desirable features of both field effect transistors and bipolar transistors, therefore, having a high input impedance that is typical of FETs and a high transconductance (or high current gain) which is typical of bipolar transistors.
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Roberts, J. A. and Rowlands, K., "MOS-Bipolar Amps", Wireless World, Jul. 1969, pp. 328-330.
Aina Olaleye A.
Martin Eric A.
Allied-Signal Inc.
Massung Howard G.
Mottola Steven
Paschburg Donald B.
Walsh Robert A.
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