Amplifiers – With semiconductor amplifying device – Including particular power supply circuitry
Patent
1982-06-09
1984-09-18
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including particular power supply circuitry
330273, H03F 304, H03F 326
Patent
active
044726880
ABSTRACT:
A voltage switching amplifier circuit has a comparator which, after comparing signal amplitude to a comparison voltage, switches on a high voltage or low voltage amplifier depending upon whether the comparison voltage is exceeded or not. After the predetermined comparison voltage is exceeded, a positive feedback circuit reduces the comparison voltage enabling the high voltage amplifier to continue operation at least until the signal amplitude drops below the reduced comparison voltage. In a preferred embodiment, a time constant circuit maintains the high voltage amplifier in operation for a predetermined period of time during which the signal amplitude has dropped below and remained below the reduced comparison voltage.
Okuma Tatsuhiko
Saburo Funada
Sakai Kazumasa
Baker Joseph J.
Ferguson Jr. Gerald J.
Mullins James B.
Trio Kabushiki Kaisha
Wan G.
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