Stabilized power supply with reduced ripple factor
US4967333A · kind A · utility
26Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1989 |
| Grant date | Oct 30, 1990 |
| Priority date | — |
| Expiry date | Jun 13, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05G1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The ripple factor in an electrical power supply of a dc-dc voltage raising type is reduced by using two double alternation dc/ac converters driven in phase quadrature with respect to each other. The signals delivered by the dc/ac converters are then combined by two transformers, the secondary coils of which are series connected. It is shown that the ripple factor is reduced and, similarly, that the reactive energy due to the commutation of th dc/ac converters is reduced even if it so happens that the power transmitted is doubled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.