Redundant supply for a can transceiver of a motor vehicle and methods of use thereof
US10407006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2017 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Oct 13, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40273
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for a controller area network (CAN) transceiver of a motor vehicle including a main power supply, the main power supply being unregulated, a secondary power supply set above a minimum operating voltage of the CAN transceiver, the secondary power supply being regulated, a first diode, the first diode allowing the main power supply to power the CAN transceiver, a second diode, the second diode allowing the secondary power supply to power the CAN transceiver, wherein when the main power supply has a low cranking voltage below a normal operating voltage range, the first diode is reverse bias and the second diode is forward bias at the low cranking voltage, the secondary power supply powers the CAN transceivers at the low cranking voltage, thereby allowing the CAN transceiver to remain ON at the low cranking voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.