Circuit comprising a bus conductor and a bus interface circuit

Details Circuit comprising a bus conductor and a bus interface circuit Circuit comprising a bus conductor and a bus interface circuit

1996-12-02

1998-06-09

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361111, H02H 322

Patent

active

057644683

ABSTRACT:
Various circuit components can communicate via a bus conductor. One circuit component comprises an interface stage with a transistor coupled between the bus conductor and a power supply terminal. When a further circuit component pulls the potential on the bus conductor beyond the potential of the power supply, the potential on the control electrode of the transistor is pulled along. The connection between the control electrode and the remainder of the circuit component is then turned off, irrespective of the state of the remainder of the circuit component. This remainder includes, for example, an inverter in antiparallel connection with an inverter formed in conjunction with the transistor, so that these inverters together constitute a bus-hold circuit.

REFERENCES:
patent: 3916262 (1975-10-01), Easter
patent: 5019720 (1991-05-01), Skoog et al.
patent: 5387826 (1995-02-01), Shay et al.
patent: 5406140 (1995-04-01), Wert et al.
patent: 5450025 (1995-09-01), Shay

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