Light emitting diode driving system and light emitting diode lamp
US9173259B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2014 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Aug 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/395
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting diode driving system includes a plurality of light emitting diode driving apparatuses and a transmission line. The transmission line is electrically connected to the light emitting diode driving apparatuses. The light emitting diode driving apparatus includes a voltage regulator, a synchronous signal generation circuit and a synchronous control logic circuit. The voltage regulator sends a first voltage to the synchronous signal generation circuit. The synchronous signal generation circuit generates a second voltage after the synchronous signal generation circuit receives the first voltage. The synchronous signal generation circuit subtracts the second voltage from the first voltage to obtain a synchronous signal. The synchronous signal generation circuit sends the synchronous signal to the synchronous control logic circuit. The light emitting diode driving apparatuses drive the light emitting diodes synchronously according to the synchronous signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.