Chunfei Xu
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Chunfei Xu has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Baoping Zhang
Lanzhou Institute of Physics, CAST: China Academy of Space Technology, Lanzhou 730000, China
1 shared publication - Bin Zhao
Lanzhou Institute of Physics, CAST: China Academy of Space Technology, Lanzhou 730000, China
1 shared publication - Dejun Ba
School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310058, China
1 shared publication - Xiaofeng Lyu
School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310058, China
1 shared publication
Latest Publications
- Open Access
- 23 September 2026
- Published by MDPI AG in Electronics
- Vol. 15 (19) , 4371
A Fault-Tolerant Low-Authority Injection Current-Sharing Control Strategy for Parallel DC-DC Converters
This study proposes a fault-tolerant low-authority injection (LAI) current-sharing strategy for parallel DC-DC converters. A dual-operational-amplifier architecture is adopted, and a resistor–diode injection interface is introduced to limit the influence of the current-sharing loop on the primary voltage-regulation loop. A piecewise injection model and a simplified small-signal model are developed. A three-module 36 V/5 V half-bridge prototype is experimentally evaluated. At total output currents of 30 A and 90 A, the maximum current-sharing errors are approximately 6.0% and 6.4%, respectively. The converter also maintains stable operation during an intentional current-sharing-bus short-circuit test. The proposed LAI method provides a simple hardware-oriented solution that achieves effective current redistribution while restricting sharing-loop authority and improving fault tolerance.
- 23 September 2026
- Published by MDPI AG in Electronics
- Vol. 15 (19) , 4371
Open AccessA Fault-Tolerant Low-Authority Injection Current-Sharing Control Strategy for Parallel DC-DC Converters
This study proposes a fault-tolerant low-authority injection (LAI) current-sharing strategy for parallel DC-DC converters. A dual-operational-amplifier architecture is adopted, and a resistor–diode injection interface is introduced to limit the influence of the current-sharing loop on the primary voltage-regulation loop. A piecewise injection model and a simplified small-signal model are developed. A three-module 36 V/5 V half-bridge prototype is experimentally evaluated. At total output currents of 30 A and 90 A, the maximum current-sharing errors are approximately 6.0% and 6.4%, respectively. The converter also maintains stable operation during an intentional current-sharing-bus short-circuit test. The proposed LAI method provides a simple hardware-oriented solution that achieves effective current redistribution while restricting sharing-loop authority and improving fault tolerance.