Researchers Developed New High Step-Up DC-DC Converter
A prototype circuit achieved 94.42% efficiency by converting 40V input to 300V output.
Updated on Oct. 8, 2026 in Semiconductors
Scientists have engineered an interleaved, high step-up non-isolated DC-DC converter that utilizes a specialized soft-switching mechanism. The new design successfully boosts a 40V input to a 300V output.
Why it matters
The implementation of an auxiliary resonant circuit allows the converter to reduce or eliminate switching losses during transitions. This improvement enhances energy efficiency during the voltage conversion process.
The converter operates with a soft-switching mechanism that employs both zero voltage and zero current switching. It features an auxiliary circuit comprised of a single inductor and no additional switches, supporting multi-phase interleaved configurations.
The details
The design utilizes a single auxiliary resonant circuit to achieve soft-switching, which minimizes energy loss during power conversion. The interleaved architecture further allows the converter to be adapted for complex, multi-phase systems to enhance overall output performance.
Timeline
October 8, 2026: The research findings were published on nature.com.
The Tech Race
This development represents a technical shift away from bulky, traditional isolation transformers toward compact, high-efficiency non-isolated architectures. It marks a significant advancement in the competitive race to improve power density in modern electronics.
Increased efficiency in DC-DC conversion can lead to lower energy consumption and less heat generation in consumer electronics. These improvements may eventually enable smaller, longer-lasting power supplies for a variety of portable devices.
The takeaway
This breakthrough demonstrates that reducing switching losses is critical for enhancing energy conversion in power electronics. Engineers looking to optimize hardware should consider integrating soft-switching circuits to achieve higher efficiency gains.
Further reading
Learn more about the latest innovations in Semiconductors.
More information
Review the full technical specifications in the peer-reviewed research article.
Source note: This article includes information reported by Nature.
