Synchronous High Step-Down Ratio Non-Isolated LED Constant Current Driver Based on Improved Watkins-Johnson Topology

Synchronous High Step-Down Ratio Non-Isolated LED Constant Current Driver Based on Improved Watkins-Johnson Topology

In the field of non-isolated light-emitting diode (LED) driver, the omnipresent buck-based LED constant current driver shows poor efficiency in occasions of high step-down ratio due to the marginal operating duty cycle. In order to overcome such drawback and to provide an alternative topological sch...

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Bibliographic Details
Main Authors: Liang Hu, Xueye Wei, Yuan Luo, Jianguang Ma
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Constant current
LED driver
synchronous control
Watkins-Johnson topology
Online Access:https://ieeexplore.ieee.org/document/8633837/

Internet

https://ieeexplore.ieee.org/document/8633837/

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