Isolating DC-DC converter
US6185114A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2000 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Feb 18, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An isolating DC--DC converter has a main switching element disposed on the primary side of a main transformer and a synchronous rectifier disposed on the secondary side thereof. The synchronous rectifier is turned off by synchronizing to the turn-on of the main switching element and is turned on by synchronizing to the turn-off the main switching element. The isolating DC--DC converter has a drive transformer connected to a charging circuit of the main switching element, the drive transformer outputting a pulse when an ON signal of a control pulse driving the main switching element is outputted, and an early-off drive circuit receiving the pulse of the drive transformer to turn off the synchronous rectifier before the main switching element is turned on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.