Vehicle on-board electric power system
US8254070B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2007 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | May 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/145
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A vehicle on-board electric power system is disclosed including at least one field-effect-controlled power transistor which applies a vehicle on-board electric power system supply voltage VBB to a load when actuated by a logic circuit. The power transistor has a drain-source breakdown voltage VDS with a positive temperature coefficient TKDS and is provided with a clamping means for protecting against overvoltages VO occurring in the vehicle on-board electric power system. The clamping means has a clamping voltage VCLAMP with a positive temperature coefficient TKCLAMP≈TKDS, the clamping voltage VCLAMP being lower than or equal to an anticipated maximum overvoltage VOmax in the vehicle on-board electric power system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.