LED driver, LED system and signal transmitting method for LED
US11310894B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2019 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jan 22, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driver comprises a controller coupled with a LED, and an interface circuit configured to be coupled between the controller and an external device. The interface circuit comprises an interface port configured to be coupled to the external device, an analog interface module, a digital interface module and a power supply module. The analog interface module is coupled between the interface port and the controller and configured to transmit an analog signal therebetween the external device and the controller in a first mode. The digital interface module is coupled between the interface port and the controller and configured to transmit a digital signal between the external device and the controller in a second mode and a third mode. The power supply module is coupled to the interface port and configured to provide energy to the external device in the first mode and the third mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.