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In high voltage gain application scenarios, diode-capacitor network can be used to achieve a relatively high voltage gain and at the same time reduce the demand of magnetic component, which considerably improves the efficiency and power density. In this article, the topology of a high step-up DC-DC converter based on multi-cell diode-capacitor network and coupling inductor is proposed to attain a...
The full bridge boost isolated DC-DC converter achieves high voltage gain by setting the turns ratio of high-frequency transformer. Compared with the transformer, diode-capacitor voltage boost cell is more suitable to achieve high voltage gain with both high efficiency and power density. However, multi-cell diode-capacitor network has inrush current issue and strict LC filter requirement which is...
The existing high step-up DC-DC converters with multi-cell diode-capacitor network have large inrush current issue and strict LC filter requirement which are not suitable to achieve both high efficiency and high power density in relatively low switching frequency and large power application. In order to meet high step-up voltage regulation and compulsory electrical isolation due to public safety,...
The novel DC-DC converter composed of multi-cell diode-capacitor network provides a simple solution for high step-up power conversion in renewable energy applications. With regard to the uni-directional power flow of the diodes, multi-capacitors are naturally charged in parallel, and discharged in series. Thus, high voltage gain is achieved without extreme large duty ratio of power devices. Furthermore,...
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