Circuit and method for reducing voltage spikes due to magnetizing current imbalances and power converter employing the same
US7372711B2 · kind B2 · utility
0Cited by
10References
17Claims
0Family size
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Key dates
| Filing date | Jan 11, 2005 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Apr 11, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1555
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
For use in a power converter having parallel power trains, a circuit for, and method of, reducing voltage spikes due to magnetizing current imbalances in the power trains and a power converter incorporating the circuit or the method. In one embodiment, the circuit includes: (1) a conductive bypass path coupling nodes between transformer secondary windings and inductors in each of the power trains and configured to provide an alternative path to redirect magnetizing current imbalances from the inductors and (2) a capacitor located in the conductive bypass path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.