Inverter bridge controller implementing short-circuit protection scheme
US7110272B2 · kind B2 · utility
11Cited by
7References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2004 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Mar 30, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fault handling system for short circuit recovery in three-phase multiple-level inverter bridges, used to drive inductive loads, which waits for either desaturation of switches or expiration of a delay period based upon an amount of time before saturated switches are damaged before commanding off switches that are saturated, and which artificially creates a dead-short across the three-phase output to force switches conducting a fault current to desaturate. By delaying the switching-off of the inverter bridge during a fault, waiting for desaturation to occur, the statistical likelihood of switch survival is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.