Constant-current controller for LED light string
US8305008B2 · kind B2 · utility
1Cited by
1References
3Claims
0Family size
Inventor
Key dates
| Filing date | May 19, 2010 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Jun 17, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A constant-current controller for a LED light string has a control unit, multiple constant current circuits, multiple first switches and multiple second switches. The control unit outputs driving signals to turn on the first switches, causing the second switches being turned on subsequently. Therefore, the constant current circuits output electric currents flowing through the second switches to activate the LED light string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.