AC—LED system in single chip with three metal contacts
US7948770B2 · kind B2 · utility
5Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2006 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Apr 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/42
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plurality of AC_LED units are coupled and disposed on a single chip to form an AC_LED system in single chip with three metal contacts to be driven by three-phase voltage sources. Alternatively, an AC_LED system in single chip with four metal contacts is also disclosed to be driven by four-phase voltage sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.