인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
This paper presents a high-speed gate driver circuit specifically designed for gallium-nitride (GaN) power semiconductors, integrating over-current protection (OCP) and over-voltage protection (OVP). While GaN devices offer superior switching performance and power density compared to silicon-based devices, their reliability is limited by their inherent susceptibility to short-circuit and gate overstress conditions during high-speed operation. To address these issues, a gate driver architecture is proposed that incorporates a low-latency desaturation-based OCP and a multi-level soft turn-off OVP, both optimized to minimize parasitic effects through PCB layout refinement. Experimental validation using a 13.56 MHz PWM signal confirms the stable and reliable operation of the proposed protection circuits, which achieve a total response time of 120 ns. Furthermore, the soft turn-off topology successfully reduces negative gate voltage peaks by 45% compared to hard turn-off-only protection, significantly enhancing the robustness of the GaN gate channel. This work presents a scalable and reliable gate driver solution for next-generation GaN-based power systems, applicable in various fields, including electric vehicle chargers, 5G communication, and renewable energy systems.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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