Isolation circuitry for transmitter electronics in process contr

Details Isolation circuitry for transmitter electronics in process contr Isolation circuitry for transmitter electronics in process contr

1995-07-28

1997-03-11

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Nonlinear amplifying circuit

327509, G06G 712

Patent

active

056105525

ABSTRACT:
A transmitter in a process control system includes isolation circuitry which isolates transmitter electronics from a sensor bridge circuit. The isolation circuitry includes high impedance isolators in series with high impedance buffers to electronically isolate the transmitter electronics from the bridge. A power supply is isolated using a series of capacitors connected to a periodic signal.

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