Amplifiers – With semiconductor amplifying device – Including gain control means
Patent
1991-03-20
1992-06-30
LaRoche, Eugene R.
Amplifiers
With semiconductor amplifying device
Including gain control means
330129, 330127, 330133, 330134, 455 89, 455126, H03G 330
Patent
active
051266881
ABSTRACT:
A power amplifying apparatus according to the present invention can provide a stable electric power output with wide range by controlling both of the output amplifier for amplifying the electric power and the pre-amplifier disposed at the front of the output amplifier. Furthermore, in order to avoid the disadvantage that a transmission spectrum is expanded because of no supply of a stable voltage to be supplied to the electric power amplifier, thereby producing a cross-talk, a stabilizing power source circuit is provided to stabilize the voltage between the power amplifier and the power source for supplying the voltage.
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Nakanishi Eiichi
Onodera Tetsuo
Dinh Tan
LaRoche Eugene R.
Oki Electric Co., Ltd.
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