Two-wire system including signal receiving section and detection

Details Two-wire system including signal receiving section and detection Two-wire system including signal receiving section and detection

1977-02-16

1979-02-27

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

323 9, 340628, 323 9, H02H 308

Patent

active

041422198

ABSTRACT:
Disclosed is a two-wire system including a power source, a signal receiving section and a sensing device in series which supplies electric power to and receives sensing signals from signaling devices in the system. A capacitor is connected to each sensing device for preventing a voltage drop upon initiation of its sensing action. A buffer circuit is further coupled with the receiving section for protecting against false operation by an initial current which increases upon switching on the power source, thus ensuring the system becomes stable.

REFERENCES:
patent: 3500368 (1970-03-01), Abe
patent: 3666954 (1972-05-01), Sasaki et al.
patent: 3717862 (1973-02-01), Sasaki
patent: 3728706 (1973-04-01), Tipton et al.
patent: 3824434 (1974-07-01), Boley et al.
patent: 4021671 (1977-05-01), Solomon

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