DC-link ripple reduction circuit
US5014177A · kind A · utility
7Cited by
13References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1989 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Dec 19, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ripple reduction circuit includes a controllable switch, an impedance coupled to one of a pair of main current path electrodes of the controllable switch whereby the impedance and the switch are coupled between first and second DC conductors and gating circuitry coupled between one of the conductors and a control electrode of the controllable switch for closing the switch when AC ripple power is carried by the conductors whereby at least a portion of the AC ripple power is removed from the conductors and delivered to the impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.