Amplifiers – Combined with automatic amplifier disabling switch means
Patent
1976-12-13
1978-04-25
Dahl, Lawrence J.
Amplifiers
Combined with automatic amplifier disabling switch means
330 9, 330 69, H03F 114
Patent
active
040865410
ABSTRACT:
A time division multiplexing amplifier having a differential amplifier, such as a dynamic bridge amplifier, which has a predetermined gain accurately provided by means of operational network resistors. The differential amplifier is used to amplify differential signals containing a common-mode voltage. Prior to amplification of the differential signals, a common-mode voltage is applied in common to two input terminals of the differential amplifier, and then the differential amplifier is adjusted to provide a zero offset voltage. After that, the differential signals are applied to the differential amplifier, so that the differential signals can be amplified without having any adverse effect of a common-mode voltage.
REFERENCES:
patent: 3304507 (1967-02-01), Weekes et al.
Horinaka Ikuho
Katou Kazuo
Sase Takashi
Dahl Lawrence J.
Hitachi , Ltd.
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