Lighting source with low total harmonic distortion
US8354800B2 · kind B2 · utility
3Cited by
22References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 2009 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Jan 30, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low THD lighting system is disclosed. The lighting system includes a first lighting module and a second lighting module connected parallel to the first lighting module. During each AC cycle the first lighting module conducts current for a first portion of the cycle and the second lighting module conducts current for a second portion of the cycle. When combined, the total current drawn from the power source substantially tracks the shape of the applied AC voltage. Accordingly, there is minimal distortion, and low total harmonic distortion level is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.