东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (3): 305-309.DOI: -

• 论著 •    下一篇

一种基于负载电压换流的新型ZCS-PFM变换器

褚恩辉;候蕊;张化光;刘秀翀;   

  1. 东北大学信息科学与工程学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    中央高校基本科研业务费专项基金资助项目(N100404015)

A new ZCS-PFM converter based on a load voltage commutator

Chu, En-Hui (1); Hou, Rui (1); Zhang, Hua-Guang (1); Liu, Xiu-Chong (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Chu, E.-H.
  • About author:-
  • Supported by:
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摘要： 为实现一种结构简单,高效、高频、低电压应力,控制简单的软开关升压变换器,提出一种零电流软开关脉冲频率调制(pulse frequency modulation,PFM)变换器,并以其在boost变换器的应用为例分析了其工作原理、软开关实现条件以及该电路的设计方法.仿真和实验结果表明:该变换器在较宽的输出电压、输入电压、负载及控制频率变化范围内,能够实现稳定的零电流开关.该软开关设计思想可以推广到其他基本DC-DC变换器中.

关键词: 负载电压换流, 交叉耦合电感, 非隔离升压DC-DC变换器, 零电流开关, 脉冲频率调制

Abstract: With the goal of producing a soft switching boost converter having a simple structure, high efficiency, high frequency, low voltage stress, and ease of control, a new zero-current soft-switching pulse frequency modulation (PFM) converter was described herein. The operation principle of this converter is explained using the boost converter as an example. The soft switching and other design aspects are also outlined in detail. Simulation and experimental results show that the converter can produce a steady zero current swith under a relatively broad range of changes in output and input voltage, load, and control frequency. This new soft switching cell can also be used in other basic DC-DC converters.

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