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Current Source Drivers (CSDs) are investigated for MHz Power Factor Correction (PFC) applications. Due to the fast duty cycle change, the half-bridge (HB) CSD topology can hardly be accepted for high frequency PFC Applications. To solve the problem, the full-bridge (FB) CSD topology is used instead. It is interesting to note that the FB CSD with the continuous inductor current can actually achieve...
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...
In this paper a novel current source driver (CSD) for power MOSFETs is proposed. The proposed CSD alleviates the gate current diversion problem of the CSDs in previous work by clamping the gate voltage to a negative value. Therefore, the proposed driver is able to turn off the MOSFET much faster with a higher effective gate current. The idea presented in this paper can also be extended to other CSDs...
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