Systems and methods for discharging bus voltage using semiconductor devices
US8022569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2008 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Mar 11, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/322
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Systems and methods are provided for discharging a high-voltage bus using semiconductor devices. A discharge system for a first voltage rail and a second voltage rail comprises a first semiconductor device coupled to a first voltage rail and a second semiconductor device coupled between the first semiconductor device and a second voltage rail. A control circuit is coupled to the first semiconductor device and the second semiconductor device. In response to a discharge condition, the control circuit is configured to activate the first semiconductor device and gradually activate the second semiconductor device, such that the energy potential between the first voltage rail and the second voltage rail is gradually dissipated through the semiconductor devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.