DC/DC converter for low output voltages
US5673183A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1995 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Oct 23, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
With direct current/direct current converters of modern construction, which can be operated at frequencies as high as 500 kHz, the number of secondary windings that are necessary decreases with simultaneously high currents, so the necessary voltage can be generated by a single winding, or even by less than one winding. A push-pull converter exhibits, for example, a transformer with a center limb (19) and two outer limbs, and that contains on the secondary side two coils (29, 30), each of which consists of a single, complete winding with one center tap (B, E) each. These coils are placed around the center limb (19) in such a way that the two center taps (B, E) come to be located opposite each other in two openings (18) between the outer limbs. In the same opening (18) as the center limb (E) of the one coil (30), the terminals (A, C) of the other coil (29) are also located, and in the other opening (18), in which the center tap (B) of the other coil (29) is located, the terminals (D, F) of the one coil (30) are also located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.