中圖分類號： TM43 文獻標識碼： A DOI：10.16157/j.issn.0258-7998.211688 中文引用格式： 余世科，葉明剛，謝鶴齡，等. 新拓撲超低壓大電流開關電源的研究與實現[J].電子技術應用，2022，48(3)：99-103，108. 英文引用格式： Yu Shike，Ye Minggang，Xie Heling，et al. Research and implementation of ultra low voltage and large current switching power supply with the new topology[J]. Application of Electronic Technique，2022，48(3)：99-103，108.
Research and implementation of ultra low voltage and large current switching power supply with the new topology
Yu Shike1，Ye Minggang1，Xie Heling2，Jin Jianhui2
1.China Shipbuilding Group 705 Research Institute，Kunming 650032，China； 2.School of Information Engineering and Automation,Kunming University of Science and Technology，Kunming 650500，China
Abstract： The power consumption of information system composed of integrated circuits is increasing, and the energy consumption is huge. The emergence of low-power integrated circuit chips with ultra-low voltage power supply reduces the system energy consumption. In addition, many special industries also need ultra-low voltage and large current power supply. In order to meet the needs of these loads, ultra-low voltage and large current switching power supply has been developed rapidly. There is a big gap between China and foreign countries in this field. It is necessary to design high performance low voltage and large current power supply with independent intellectual property rights. In this paper, the simulation analysis and physical test of ultra-low voltage and high current power supply with the new topology are carried out. The designed low voltage and large current switching power supply achieves 1 V/35 A, 0.7 V/20 A indicators, and has significant improvement in achieving lower voltage and larger current indicators. Moreover, the structure is simple, but the efficiency and ripple indicators are not high, which need to be improved.
Key words : energy consumption；ultra low voltage and large current；switching power supply；new topology
