Ripple-current reduction schemes for AC converters
US7016205B2 · kind B2 · utility
9Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2003 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Mar 22, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An AC ripple current reduction circuit for an AC converter having: an AC voltage source at the input; a first capacitor across which the circuit output voltage is provided; a first, main inductor in series with the first capacitor and the input; an auxiliary circuit including a second capacitor and a transformer coupled to the main inductor, the secondary of the transformer being in series with the second capacitor; and a means for enabling the flow of a time varying voltage across the first and second capacitors that has a frequency much less than the ripple frequency of the current in the main inductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.