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JPH0965644A Expired / Lapsed JP ⏱️ 0.0 years remaining

Insulated gate transistor drive circuit

Assignee: Mitsubishi Electric Corp
•
Filing: 1995-08-25
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Granted: —
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Expires: 2015-08-25
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Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 コレクタ電流の遮断動作期間におけるサージ 電圧を抑制しながらスイッチング損失を低減することが できるIGBT駆動回路を実現する。 【解決手段】 コレクタ電流の遮断過程をエミッタ−コ レクタ間電圧回復期間とコレクタ電流遮断期間に分け、 エミッタ−コレクタ間電圧回復期間にはゲート抵抗を小 さくし、コレクタ電流遮断期間にはゲート抵抗を大きく することによって遮断時間を短縮しスイッチング損失を 低減するとともにサージ電圧を抑制する。 (57) Abstract: An IGBT drive circuit capable of reducing switching loss while suppressing a surge voltage in a collector current cutoff operation period. A collector current cutoff process is divided into an emitter-collector voltage recovery period and a collector current cutoff period, By reducing the gate resistance during the emitter-collector voltage recovery period and increasing the gate resistance during the collector current cutoff period, the cutoff time is shortened, switching loss is reduced, and surge voltage is suppressed.

Inventors

  • 👤 Satoshi Chikai
  • 👤 智 近井
  • 👤 Haruyoshi Mori
  • 👤 治義 森
  • 👤 Tomohiro Kobayashi
  • 👤 知宏 小林

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-08 23:09
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/08; H03; H03K; H03K17/00; H03K17/08; H03K17/082; H03K17/0828; H03K17/04; H03K17/0406; H03K2217/00; H03K2217/0036

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