Abstract
This paper presents a multilevel modular switched-capacitor dc-dc converter for high voltage gain and high power application with reduced component rating and count. For the traditional switched-capacitor dc-dc converters in high voltage gain application, the switching device or the capacitor has to suffer the high voltage stress. For the topology with reduced device and capacitor voltage stress, a large amount of device and capacitor number is usually required. The proposed circuit has low device number, low device and capacitor voltage stress and low device current stress in contrast to the conventional circuits. Besides, the proposed circuit also has modular structure, low conduction loss, high frequency operation capability, interleaving operation capability and soft-switching features. Therefore, a high power density, high power, and high voltage gain converter can be built with the proposed circuit. Simulation results will be provided to validate the operating principle and features of the circuit.
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