Driver for driving an LED light engine of an LED tube
US12342435B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2023 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Apr 7, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driver for driving an LED light engine of an LED tube is provided. The driver includes (I) a first driver unit including an input stage for connecting to a power supply, an output stage for connecting to the LED light engine, and a power converter stage for converting input power from AC mains or a CCG (electromagnetic control gear) into an output power for driving the LED light engine and (II) a second driver unit including an input stage for connecting to a power supply, an output stage for connecting to the LED light engine, and a power converter stage for converting input power from an ECG (electronic control gear) into an output power for driving the LED light engine. The two driver units are alternatively activatable for driving the LED light engine depending on when the LED tube is connected to AC mains, a CCG, or an ECG.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.