*Article* **Feasibility Study GaN Transistors Application in the Novel Split-Coils Inductive Power Transfer System with T-Type Inverter**

**Viktor Shevchenko 1,\*, Bohdan Pakhaliuk 1,2, Oleksandr Husev 1,3,\*, Oleksandr Veligorskyi 1, Deniss Stepins <sup>4</sup> and Ryszard Strzelecki 2,\***


Received: 17 July 2020; Accepted: 28 August 2020; Published: 1 September 2020

**Abstract:** A promising solution for inductive power transfer and wireless charging is presented on the basis of a single-phase three-level T-type Neutral Point Clamped GaN-based inverter with two coupled transmitting coils. The article focuses on the feasibility study of GaN transistor application in the wireless power transfer system based on the T-type inverter on the primary side. An analysis of power losses in the main components of the system is performed: semiconductors and magnetic elements. System modeling was performed using Power Electronics Simulation Software (PSIM). It is shown that the main losses of the system are static losses in the filter inductor and rectifier diodes on the secondary side, while GaN transistors can be successfully used for the wireless power transfer system. The main features of the Printed Circuit Board (PCB) design of GaN transistors are considered in advance.

**Keywords:** wireless power transfer; inductive power transmission; multilevel converter; AC-DC power converters; T-type inverter; GaN-transistors; electromagnetic coupling
