Electronic device for protecting against a polarity reversal of a DC power supply voltage, and its application to motor vehicles
US8547671B2 · kind B2 · utility
1Cited by
17References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 23, 2010 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Mar 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/83
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The electronic device for protecting against a polarity reversal of a DC power supply voltage comprises, produced within one and the same integrated circuit, an N-channel main transistor (TP) mounted on the line of expected positive polarity of the power supply voltage and command means (MCM) for the main transistor comprising a charging pump circuit (CP), associated with a dynamic biasing circuit (MCTRL) for the substrate regions of active components connected to the main transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.