Apparatus, systems and methods for average current control in a buck DC/DC LED driver
US9887614B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2016 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Dec 19, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Various embodiments of apparatuses, systems and methods for regulating the currents provided by a DCDC buck converters to an LED unit are provided. In accordance with at least one embodiment, a regulating module operable to instruct and regulate the periods during which a first switch of a driver module, used to control the operation of a buck converter module, is configured into at least one of the first operating state and the second operating state such that the maximum and minimum currents provided by the buck converter module to a load, such as an LED unit, over a given duty cycle are symmetrically disposed about an average current provided to the LED unit during the duty cycle, where the average current provided is substantially equal to a target current for the LED unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.