Method and arrangement for combined data and power distribution using a communication bus
US6363066B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1998 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Sep 28, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40215
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and arrangement for combined data- and power distribution between nodes (MA, SL, SLN) in distributed data processing systems having a common communication bus (1, CANH/CANL) in which the communication bus includes at least one wire or differentiated dual wires transmitting digital information serially in form of dominant data bits at a first signal level (U1/U3 V/D2) and recessive data bits at a second lower signal level (U2, VD1) in a sequential order dependent on the content of the data being transmitted. Nodes (SL) having a low power consumption obtain power supply through dominant bits being transmitted on the bus (1), which dominant bits charge a capacitance (15) in the low effect nodes (SL). Nodes (MA) having a higher power consumption obtain power supply from a voltage source (V1) separated from the bus. At least one node (MA) of the high effect nodes includes an amplification unit (20-24) which will be activated automatically in order to amplify the potential of dominant bits being transmitted by a low effect node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.