Research on state trajectories and characteristics of families of inductor-less converters

Fang Li, Xiaojie You, Yan Li

Research output: Contribution to journalArticle


Due to the presence of huge inductor in traditional DC-DC converter, the dynamic performance is limited and the power density is reduced. Inductor-less converters can achieve soft switching by little inductors and capacitors, which can increase the operating frequency of switching devices, thereby improve dynamic response and power density of converters. This paper studies the following inductor-less converters: LLC resonant converter, sine amplitude converter, inductor-less full-bridge converter, inductor-clamped converter, cascade Buck-Boost converter and switched capacitor resonant converter. Draw the steady-state trajectories and analyze the implementation of soft switching, output performance and optimal operating mode and other characteristics. At last, a general analysis method of state trajectory and related properties is proposed, which provide a basis for further research.

Original languageEnglish (US)
Pages (from-to)242-249
Number of pages8
JournalDiangong Jishu Xuebao/Transactions of China Electrotechnical Society
Publication statusPublished - Dec 1 2014


All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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