Bus terminating and decoupling circuit

Details Bus terminating and decoupling circuit Bus terminating and decoupling circuit

1978-08-17

1980-09-02

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307363, 307317R, 307237, H03K 301, H03K 326

Patent

active

042208769

ABSTRACT:
The bus terminating circuit isolates itself from a bus in response to the magnitude of a power supply voltage decreasing below a predetermined threshold level. The bus terminating circuit includes a bus termination voltage divider network having one terminal coupled through a threshold sensing device to one of the pair of power supply terminals, another terminal coupled to the bus and a further terminal coupled through a transistor to the other of the pair of power supply terminals. Another threshold sensing circuit is coupled between one of the pair of power supply terminals and the control electrode of the transistor. The threshold sensing circuits are responsive to the magnitude of the power supply voltage falling below the predetermined threshold level to render devices of the threshold sensing circuits non-conductive and thereby electrically isolate the bus termination network from the bus.

REFERENCES:
patent: 3204120 (1965-08-01), Naken
patent: 3553486 (1971-01-01), Dow
patent: 4163161 (1979-07-01), Walker

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