Apparatus for protecting multiple output rectifiers in a current-fed DC-to DC converter
US5673186A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1996 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Jul 1, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/3372
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A current-fed DC-to-DC converter (10) includes an input choke (20) which reduces current fluctuation in the converter (10). A power transformer (26), which is coupled to the input choke (20), transforms electrical energy at one voltage magnitude into electrical energy at another voltage magnitude. A first output rectifier (32) is coupled to the input choke (20). A second output rectifier (34, 36) is coupled to the power transformer (26). A first isolation diode (38) and a second isolation diode (40, 42) are coupled to the anodes of the first output rectifier (32) and the second output rectifier (34, 36), respectively. A transient voltage suppression element (12) is coupled to the first isolation diode (38) and the second isolation diode (40, 42). The transient voltage suppression element (12) limits the magnitude of voltage transients created by the input choke (20) and the power transformer (26) during operation of the converter (10), thereby preventing damage to the first and second output rectifiers (32, 34, 36).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.