Reverse battery protection circuit for power switch
US7288856B2 · kind B2 · utility
2Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2004 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Jul 13, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0034
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for protecting a power switch in the event of a reverse battery connection, wherein the power switch comprises a MOSFET having a body diode and the MOSFET is connected in series with a load, the circuit comprising terminals connected to the circuit and normally connectable to respective positive and negative power potentials of the battery, and the circuit comprising a switching circuit coupled to the terminals such that the switching circuit turns on the power switch in the event that the terminals are connected with a reverse battery connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.