Patent · US Active

Shutdown protection for bus line drivers

US9172235B2 · kind B2 · utility

1Cited by

8References

23Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Dieter Metzner · Eichenau, DE
Peter Widerin · Bregenz, AT
Paul Wallner · Prien am Chiemsee, DE
Thomas Rickes · Munich, DE

Key dates

Filing date	Jun 3, 2013
Grant date	Oct 27, 2015
Priority date	—
Expiry date	Jan 16, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/0282
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An electrical circuit for driving a bus is described that includes a plurality of branches coupled to at least one signal line at a termination of the bus and a transmit data input configured to receive data that the electrical circuit drives across the bus. The electrical circuit also includes an over-current validation unit coupled to the transmit data input which is configured to validate an over-current condition detected at a first branch of the plurality of branches based at least in part on the data at the transmit data input. The electrical circuit also includes a branch control unit coupled to the over-current validation unit which is configured to disable at least one of the plurality of branches in response to a validated over-current condition at the first branch.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.