Circuit configuration for current limiting in a protection system, in particular airbag control system
US6114777A · kind A · utility
4Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1999 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Mar 19, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/017
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A circuit for current limiting in a protection system, in particular for the firing of the firing pellet of an airbag system. The circuit has a switched-mode regulator connected to a low-pass filter that cooperate to limit the average and the peak value of the current flowing through the firing pellet. The switched mode regulator has switches that are switched on when the current flowing through the firing pellet falls below a reference value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.