LED control circuits
US10827584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Apr 26, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for controlling a load including a plurality of LEDs includes a timing circuit, an encoder and a configuration switching circuit. The timing circuit generates time-off switching points and time-on switching points. The encoder generates a load voltage by modifying a rectified line voltage using the time-off switching points and the time-on switching points. The configuration switching circuit determines a maximum voltage of a line voltage input to the driver system, selects a configuration for the plurality of LEDs based on the maximum voltage, communicates the configuration for the plurality of LEDs to the load, dynamically reconfigures the configuration for the plurality of LEDs based on the modified rectified line voltage, the dynamically reconfiguration of the configuration including changing at least one of the first quantity of LEDs in electrically coupled in series and the second quantity of LEDs electrically coupled in parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.