Lighting device
US9161398B2 · kind B2 · utility
1Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2013 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Jan 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system is described for providing unconditioned power using an alternating current (AC) power source in order to power light emitting diodes (LEDs). The system may include a plurality of light emitting diodes (LEDs), a microprocessor to send pulse-width modulated power signals to power the plurality of LEDs, a zener diode to limit a voltage provided to the microprocessor from the AC power source, and a varistor in series with the zener diode to clamp down the voltage from the AC power source to a pre-defined value to resist current in rush to the microprocessor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.