Circuit and method for managing common mode noise in isolated resonant DC-DC power converters
US9502987B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2015 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Feb 2, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A resonant DC/DC power converter is provided with isolated primary and secondary circuits. The primary circuit includes at least four switches as first and second pairs in a bridge configuration, an isolation transformer having at least one primary and at least one secondary winding, and a resonant tank including a resonant capacitor and a split resonant inductor having two separate windings. In one embodiment, the split resonant inductor windings are substantially identical. Synchronous switching of diagonally opposed switch pairs in the bridge configuration thereby produces a center point voltage of the primary transformer winding is substantially free of stepwise voltage changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.