Current control circuit for linear LED driver
US10149357B2 · kind B2 · utility
1Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2017 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Feb 20, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Employed within an LED driver operating from the AC power line, the invention controls both input current and output power. With this regulation circuit, input current appears purely resistive, precisely tracking the input voltage waveshape. At the same time, it provides good line regulation and inherent phase dimmer compatibility, requiring no special circuitry to detect and handle a dimmer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.