一种直流变换器、供电系统、开关处理方法和控制方法
By using a DC-DC converter composed of N sub-modules, and connecting the switched capacitor unit and the filter capacitor in a non-resonant state, the problems of conduction loss and magnetic saturation in the DC-DC converter are solved, thereby improving the current output capability and circuit stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG UNIV
- Filing Date
- 2025-11-07
- Publication Date
- 2026-07-17
AI Technical Summary
Conventional DC-DC converters experience peak current and charge balance losses during state transitions due to capacitor voltage imbalance. Furthermore, the resonant inductor increases conduction losses and the risk of magnetic saturation, limiting current output capability.
A DC-DC converter consisting of N sub-modules is used. Each sub-module includes a switched capacitor unit, a bridge arm unit, and a filter unit. By connecting the input side in series and the output side in parallel, the switched capacitor unit in the non-resonant state is connected to the filter capacitor to reduce conduction losses and avoid additional resonant inductance. High-frequency small capacitors are used to stabilize the bus voltage.
It reduces conduction losses, avoids magnetic saturation, improves the current output capability of the circuit, reduces the size of magnetic components, and achieves stable current output.
Smart Images
Figure CN121461760B_ABST