Addressing the issue of significant switching losses in traditional hard-switching Boost converters when operating at high switching frequencies, this paper introduces an active clamped soft-switching Boost converter. The design incorporates an active clamped soft-switching module into the conventional Boost circuit, complemented by a current transfer circuit that utilizes diodes and auxiliary inductors. This ensures that power switches operate under the soft-switching conditions without increasing the current stress and voltage stress, which significantly diminishes switching losses. Consequently, this leads to improvement in the efficiency and reliability of the proposed ZVS Boost converter. The operation of the proposed soft-switching Boost converter is detailly analyzed in the paper. To validate the theoretical analysis, experimental verification was conducted on a 1.5kW active clamped soft-switching Boost converter prototype. The results of the experiment are consistent with the theoretical analysis, further confirming the feasibility and superiority of the proposed converter. This paper provides a new perspective for high-efficiency power supply design in the field of power electronics.

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A Novel Active Clamped Soft-Switching Boost Converter

  • Jie Zhang,
  • Yong Li,
  • Bing Zhao,
  • Yuhang Zhang,
  • Jianghu Wan

摘要

Addressing the issue of significant switching losses in traditional hard-switching Boost converters when operating at high switching frequencies, this paper introduces an active clamped soft-switching Boost converter. The design incorporates an active clamped soft-switching module into the conventional Boost circuit, complemented by a current transfer circuit that utilizes diodes and auxiliary inductors. This ensures that power switches operate under the soft-switching conditions without increasing the current stress and voltage stress, which significantly diminishes switching losses. Consequently, this leads to improvement in the efficiency and reliability of the proposed ZVS Boost converter. The operation of the proposed soft-switching Boost converter is detailly analyzed in the paper. To validate the theoretical analysis, experimental verification was conducted on a 1.5kW active clamped soft-switching Boost converter prototype. The results of the experiment are consistent with the theoretical analysis, further confirming the feasibility and superiority of the proposed converter. This paper provides a new perspective for high-efficiency power supply design in the field of power electronics.