Switching regulator for operating luminaires, featuring peak current value controlling and mean current value detection
US10285231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2016 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Feb 4, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a switching regulator for operating luminaires, comprising a control circuit (4). The control circuit (4) is designed to operate, by triggering the switch (5) that is coupled to a coil, the switching regulator (3) in a limit mode of operation when the load generated by the luminaire (2) is so high that the resulting switching-off threshold exceeds a predefined minimum switching-off value, and operate the switching regulator in a discontinuous mode of operation at the minimum switching-off value when the load generated by the luminaire (2) is so low that the switching-off threshold in a limit mode of operation would lie below the predefined minimum switching-off value. The signal representing the current is fed to the control circuit (4) in both the limit mode of operation and the discontinuous mode of operation without being subjected to any external mean value generation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.