Bus modem for building and industrial electrical systems

Details Bus modem for building and industrial electrical systems Bus modem for building and industrial electrical systems

2011-06-21

2011-06-21

Tan, Vibol (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

C327S111000

Reexamination Certificate

active

07965099

ABSTRACT:
A bus modem for building and industrial electrical systems comprises a module (100) which comprises a pair of input pins (1, 2) destined to be connected to the bus and a pair of output pins (9, 10) destined to be connected to the electrical circuit of a device to be connected to the bus. The module (100) further comprises a voltage control circuit (3) able to take voltage from said bus and to control the voltage (VASB) on a capacitor (C1) disposed at the terminals of said output pins (9, 10), and a transmission control circuit (5) able to control an electronic switch (7) which controls a current limiting circuit (8) able to limit the current on the bus, during transmission of signals from the bus to the devices connected to the bus and vice versa.

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patent: WO 93/08652 (1993-04-01), None
patent: WO 96/02982 (1996-02-01), None

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