A new high voltage gain step-up converter with minimum phase characteristic
Seyed Mohsen Salehi1, Ali Yazdian Varjani2
1Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran. seyedmohsen.salehi@modares.ac.ir.
Scientific Reports
|July 23, 2025
Summary
This study introduces a novel DC-DC converter topology that overcomes the undesirable non-minimum phase characteristics of conventional designs. The new converter ensures improved stability and dynamic response for efficient power electronics systems.
Area of Science:
- Electrical Engineering
- Power Electronics
- Control Systems
Background:
- Conventional DC-DC converters often exhibit non-minimum phase characteristics due to right-half-plane zeros.
- These characteristics limit stability margins and degrade dynamic response times in power electronics systems.
Purpose of the Study:
- To present a novel DC-DC converter topology that eliminates non-minimum phase issues.
- To achieve desired voltage gain and improve dynamic performance in power conversion.
Main Methods:
- Utilizing a coupled inductor for energy transfer and achieving voltage gain through winding configuration.
- Performing steady-state analysis for voltage gain, device stress, and losses.
- Conducting small-signal analysis to derive the control-to-output transfer function.
Main Results:
- The novel topology successfully addresses the non-minimum phase problem.
- Steady-state and small-signal analyses provide a comprehensive understanding of converter performance.
- Laboratory prototype and simulations validate the mathematical analysis and proposed design.
Conclusions:
- The proposed DC-DC converter topology offers a viable solution for overcoming non-minimum phase limitations.
- This advancement contributes to more stable and responsive power electronics systems.
- The validated design enables efficient power conversion with enhanced dynamic characteristics.
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