Methods and systems for transient voltage protection
US8520355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2010 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Oct 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/041
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Protection of a motor controller from a transient voltage is described. A method for protecting a motor controller from a transient voltage includes providing an electromagnetic interference (EMI) filter having at least a first input terminal, a second input terminal, a first output terminal, and a second output terminal, the EMI filter configured to suppress electromagnetic interference. The method also includes coupling a first voltage clamping device and a second voltage clamping device in series between the first output terminal and the second output terminal. The method also includes coupling a spark gap device to a ground conductor and to a shared node between the first voltage clamping device and the second voltage clamping device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.