Control device for controlling functions in a motor vehicle
US5231308A · kind A · utility
7Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 27, 1990 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Nov 27, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09972
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a control device having an analog part and a digital part, an analog ground plane layer is provided for the analog part and a digital ground plane layer is provided for the digital part, these ground plane layers being separately connected to a conductive base plate of the control device to which a grounding line is also connected. This reduces emissions via the ground line and the shield of the signal line caused by high frequency switching events in the digital part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.