Two-wire transmitter

Details Two-wire transmitter Two-wire transmitter

2005-12-13

2010-11-16

Tran, Anh Q (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Signal level or switching threshold stabilization

C326S086000, C326S090000

Reexamination Certificate

active

07834656

ABSTRACT:
A two-wire transmitter is connected to two transmission lines which transmit an electric signal regarding a physical quantity detected by a sensor. The two-wire transmitter includes a current control section which controls a transmission current of the electric signal, and a starter circuit which starts at a starting time of the two-wire transmitter so that the transmission current flowing through the current control section under steady operation of the two-wire transmitter detours the current control section to flow through the starter circuit. The starter circuit stops when an output voltage of the current control section reaches a predetermined value or more after the two-wire transmitter starts.

REFERENCES:
patent: 3344340 (1967-09-01), Webb
patent: 3626278 (1971-12-01), Matsumura et al.
patent: 3057650 (1993-05-01), None

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