Amplifiers – Having light-controlled or activated device
Patent
1977-12-28
1980-02-19
Dahl, Lawrence J.
Amplifiers
Having light-controlled or activated device
330199, 330297, 330308, H03F 1700
Patent
active
041896807
ABSTRACT:
An isolated signal conditioning circuit is provided whereby control or measurement circuitry is isolated from a load, such as a control instrument, through the use of an optically coupled isolation amplifier. The control or measurement signal is conditioned by the signal conditioning circuit so as to provide a signal to a load, such as a control instrument, which is compatible with the input requirements of the load.
REFERENCES:
patent: 4030041 (1977-06-01), Sasaki
Dahl Lawrence J.
Phillips Petroleum Co.
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