Ripple cancellation apparatus and control method
US11923763B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | Aug 23, 2022 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Aug 24, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a first winding and a first switch connected in series between an input terminal and ground, a second winding magnetically coupled to the first winding and coupled to an output terminal through a second switch, a third winding magnetically coupled to the first winding and connected in series with a fourth switch, a fourth winding magnetically coupled to the first winding and connected in series with a third switch, and an energy storage device connected between a common node of the third winding and the fourth winding, and ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.