Isolated Gate Driver Timing Fundamentals

Isolated gate drivers are required anywhere level shifting, isolation, and gate drive strength are required. The isolation provided can be functional in nature, or can provide a safety barrier between two regions of different voltage potential. Isolated gate drivers find use in systems that often require tight timing and reproducible, reliable switching. This presentation covers details about the fundamental timing specifications found in most isolated gate driver datasheets, and provides methods and insight on how to properly use isolated gate drivers. The importance of different specifications are highlighted. Depending on the switch technology being driven, the important timing related specifications can change. Trade-offs between timing, robustness, efficiency, and cost are explored. Specific topics include propagation delay, propagation delay skew, drift, pulse width distortion, rise and fall times, setting deadtime, total system delay, and protection timing (reaction vs. reporting).
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Ryan Schnellは、アナログ・デバイセズのアプリケーション・エンジニアです。iCoupler技術を適用した絶縁型ゲート・ドライバなど、様々なパワー・マネージメント製品を担当しています。コロラド大学で電気工学の学士号と修士号、パワー・エレクトロニクスに関する研究で博士号を取得しています。