The traditional boost converter is extensively utilized, but it requires an extremely large duty cycle when operating under high-gain conditions. This results in increased switching losses and high voltage stress on the switching components. An enhanced boost configuration has been devised to address these issues, integrating an active switching inductor structure along with a coupled-inductor voltage multiplication module. This configuration realizes higher voltage gain as it alleviates the voltage strain borne by the switching components. The coupled-inductor voltage multiplication module enables ZVS operation for the switches and ZCS operation for the diodes, effectively decreasing the losses in the devices. A 100 W prototype was developed for experimental purposes, with the results affirming the theoretical soundness of the proposed design.

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A Switched Inductor-Secondary Cascaded Coupled Inductor Boost Converter

  • Xueli Liu,
  • Tianyu Li,
  • Shengwei Gao,
  • Taiyuan Liu

摘要

The traditional boost converter is extensively utilized, but it requires an extremely large duty cycle when operating under high-gain conditions. This results in increased switching losses and high voltage stress on the switching components. An enhanced boost configuration has been devised to address these issues, integrating an active switching inductor structure along with a coupled-inductor voltage multiplication module. This configuration realizes higher voltage gain as it alleviates the voltage strain borne by the switching components. The coupled-inductor voltage multiplication module enables ZVS operation for the switches and ZCS operation for the diodes, effectively decreasing the losses in the devices. A 100 W prototype was developed for experimental purposes, with the results affirming the theoretical soundness of the proposed design.