电器与能效管理技术 ›› 2025, Vol. 0 ›› Issue (2): 58-63.doi: 10.16628/j.cnki.2095-8188.2025.02.010

• 电器设计与探讨 • 上一篇    下一篇

一种倍压型反馈供电电路设计

张纯亚, 姜冬怡, 蒋云杨   

  1. 中国电子科技集团公司 第二十四研究所, 重庆 400060
  • 收稿日期:2024-09-20 出版日期:2025-02-28 发布日期:2025-03-31
  • 作者简介:张纯亚(1989—),男,高级工程师,主要从事开关电源设计的研究。|姜冬怡(2000—),女,主要从事高效率开关电源研发。|蒋云杨(1990—),男,高级工程师,主要从事高效率开关电源研发。

Design of Voltage-Doubling Feedback Power Supply Circuit

ZHANG Chunya, JIANG Dongyi, JIANG Yunyang   

  1. The 24th Research Institute of China Electronics Technology Group Corporation, Chongqing 400060, China
  • Received:2024-09-20 Online:2025-02-28 Published:2025-03-31

摘要:

开关电源作为一种高效的能量转换功率器件,广泛应用于各行各业。针对开关电源的反馈供电问题,分析其工作原理和关键技术,设计一种倍压型反馈供电电路。通过理论计算和仿真分析,验证所提设计方案的正确性。最后,将电路应用于一款5 V/40 A输出的正激同步整流开关电源中,实测反馈供电电压仅波动1.5 V。结果表明,所提电路具有较高的稳定性和实用性,对于提高开关电源的效率和可靠性具有重要意义。

关键词: 开关电源, 反馈供电, 倍压, 同步整流

Abstract:

As an efficient energy conversion power device,switching power supply is widely used in various industries.Aiming at the problem of feedback power supply of switching power supply,the working principle and key problems are analyzed,a voltage-doubling feedback power supply circuit is desigued through theoretical calculation and simulation analysis,the correctness of the design scheme is verified.Finally,the circuit is applied to a 5 V/40 A forward synchronous rectification switching power supply.The measured feedback voltage fluctuates only by 1.5 V.The results show that the circuit has high stability and practicability,which is of great significance for improving the efficiency and reliability of switching power supply.

Key words: switching power supply, feedback power supply, voltage-doubling, synchronous rectification

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