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Integrating an auxiliary (AUX) power supply into LED drivers is a popular trend to facilitate LED luminaire system design and reduce system cost and complexity. This AUX power supply can be used to power LED fixture cooling, lighting controller or other suitable electronic devices. In this paper, a cost effective architecture based on Flyback topology is proposed for both constant current (CC) output...
A new analytical switching loss model for power MOSFETs driven by Current Source Drivers (CSDs) is presented in this paper. The gate current diversion problem, which commonly exists in CSDs, is analyzed. In addition, the proposed loss model considers the Miller Plateau. The optimal design of current source driver is achieved which minimizes the total power loss for the Buck converter. The experimental...
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