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Comprehensive comparison of continuous and discontinuous Current Source Drivers (CSDs) are presented in terms of switching loss reduction, gate energy recovery, range of duty cycle and fast dynamic response. The advantages and disadvantages of the continuous and discontinuous CSDs are summarized. Overall, the discontinuous CSDs achieve better performance over the continuous CSDs. A 12 V input, 1.3V/30A...
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...
This paper proposes an improved soft switched synchronous buck converter in a fixed load condition. The switching energy can be fully recovered during current commutation phase in the gate driver while the diode conduction losses in the low and high side switches can be substantially reduced by employing additional L and C resonant in the circuit. Using PSpice simulation, the optimization technique...
Nowadays, portable applications are very important in telecommunications, business and entertainment markets. Handheld devices like ultra mobile PCs, cell phones, PDAs and mobile Internet devices are battery-dependant. Synchronous buck converter (SBC) is extensively used as voltage regulator (VR) in mobile devices; however, at very light-load operation, the converter efficiency is severely reduced...
Nowadays, portable applications are very important in telecommunications, business and entertainment markets. Handheld devices like Ultra Mobile PCs (UMPCs), cell phones, PDAs and mobile Internet devices (MIDs) are battery-dependant. In order to decrease the battery voltage level and supply components like the processor, synchronous buck converter (SBC) is extensively used as voltage regulator (VR)...
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