Control circuit means for controlling the after-running of an operating device in a motor vehicle
US5473201A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1992 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Dec 7, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/569
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A control circuit arrangement for controlling the after-running of an operating device in a motor vehicle is described, with which after shutting off the ignition the operating device is provided with voltage for a certain time interval by an associated voltage regulator and a switching means including a transistor. The shut off of the voltage provided to the operating device occurs by changing the input potential of the voltage regulator. Otherwise without the arrangement of the invention an external or internal relay is needed to switch off the voltage. In various embodiment the potential change at the control input of the voltage regulator can be controlled by electronic hardware devices or by a microprocessor under the control of software.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.