Control circuit of LED lighting apparatus
US9480113B2 · kind B2 · utility
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4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2014 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Feb 27, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit of an LED lighting apparatus divided into a plurality of LED channels may include: a current control circuit configured to provide a current path corresponding to sequential light emissions of the LED channels in response to a rectified voltage; and a residual voltage buffer circuit configured to correspond to an LED channel which finally emits light, and buffer a residual voltage when the rectified voltage rises to a preset value such that the residual voltage occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.