LED driver electromagnetic interference mitigation
US12369238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2023 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Mar 28, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/37
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a digital ramp generator comprising a delay line, the delay line comprising one or more delay elements and an oscillator, wherein the digital ramp generator is configured to generate a code based on respective outputs of the one or more delay elements, a digital to analog converter coupled to the digital ramp generator, wherein the digital to analog converter is configured to generate a reference signal, wherein the reference signal is generated based, at least in part, on the code, and a driver coupled to the digital to analog converter, the driver configured to generate a drive current based, at least in part, on the reference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.