Controller having feed-forward and synchronization features
US5691889A · kind A · utility
28Cited by
23References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1995 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | Dec 13, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1555
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An integrated circuit controller for a switching power converter implementing feed-forward and synchronization features. The controller IC has pins which permit dual functionality. The feed-forward feature is implemented with a supply voltage from an unregulated auxiliary winding which additionally powers the controller. The synchronization feature is implemented by coupling an external synchronization signal to a feedback pin of the controller IC to which a feedback signal from the output of the converter is also coupled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.