Details

Autor(en) / Beteiligte

• Bagawade, Snehal
• Pahlevani, Majid
• Jain, Praveen

Titel

Novel Resonant Power Feedback DC-DC Converter

Ist Teil von

• IEEE transactions on power electronics, 2023-03, Vol.38 (3), p.1-20

Ort / Verlag

IEEE

Erscheinungsjahr

2023

Link zum Volltext

• IEEE_Xplore

Quelle

IEL

Beschreibungen/Notizen

• In this paper, a novel soft-switched isolated DC-DC converter topology is proposed that consists of a main power converter using a standard topology, augmented with a resonant power feedback circuit. The power feedback circuit utilizes a fraction of the output power to regulate the input voltage of the main converter. Input voltage regulation proves to be advantageous in applications where wide range of source voltage variations are experienced, such as in photovoltaic microinverters. The operation of main converter with a regulated input voltage results in a near-constant phase-shift angle and a high frequency current wave shape with low root mean square value over the entire range of operating conditions. Moreover, the operation with near constant phase-shift angle and presence of additional resonant current in the feedback circuit extend the range of soft-switched operation of semiconductor devices in the converter. The proposed converter topology and its theoretical analysis is verified through an experimental prototype.