Power converter having EMI filter common to multiple converters
US9768680B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2013 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | May 24, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1586
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply system is disclosed that includes a first interleaved power supply, a second interleaved power supply, and a common electromagnetic interference filter. The common electromagnetic interference filter is configured to provide DC power from a DC power source to both the first interleaved power supply and the second interleaved power supply. In one example, the common electromagnetic interference filter comprises a localized filter stage configured to receive DC power from the DC power source, and a distributed filter stage configured to receive DC power from the localized filter stage. The distributed filter stage includes a first set of common mode capacitors electrically connected to and physically proximate input power lines of the first interleaved power supply, and a second set of common mode capacitors electrically connected to and physically proximate input power lines of the second interleaved power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.