Lighting apparatus, driving circuit and driving method thereof
US10925136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2017 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Aug 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/3725
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a lighting apparatus, a driving circuit and driving method thereof. The lighting apparatus comprises a plurality groups of lighting elements and a driving circuit. Each group of lighting elements comprises at least one lighting element, each lighting element in a same group having a cathode connected to a common cathode node. The driving circuit comprises a plurality of voltage sources, each having a terminal connected to an anode of a respective lighting element in each group of lighting elements; and a plurality of current sources, each having a terminal connected to the common cathode node of a respective group of lighting elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.