IEEJ Journal of Industry Applications
Online ISSN : 2187-1108
Print ISSN : 2187-1094
ISSN-L : 2187-1094
Special Issue Paper
Continuous Operation of a Half-Bridge with Multi-Parallel GaN Power Devices for Increased Current Capability
Takashi SawadaHiroshi TadanoKoji ShiozakiTakanori Isobe
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2023 Volume 12 Issue 4 Pages 695-700


GaN power devices improve the performance in power conversion circuits. Since the current rating of the GaN devices is still small, many devices must be connected in parallel to create a large-current power module. Device cooling and low stray inductance are the major challenges in designing a high-power half-bridge circuit with multi-parallel GaN devices. In order to overcome these challenges, we propose an inverter circuit structure with 12 parallel GaN devices capable of double-sided cooling and a well-balanced stray inductance. Such a system is applicable to electric vehicle design.

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© 2023 The Institute of Electrical Engineers of Japan
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