Isolated active circuit for measuring the current of an illuminant on the secondary side
US9924570B2 · kind B2 · utility
0Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Jul 14, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a drive circuit for operating an illuminant, preferably at least one LED, comprising an isolated converter which is clocked on the primary side by a control unit by means of at least one controlled switch unit, said converter supplying a rectifier starting from which the illuminant can be fed, a measurement circuit for indirectly measuring the current on the secondary side of the converter having a transformer with at least one winding on the primary side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.