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    • 2. 发明专利
    • Gate drive device
    • 门驱动装置
    • JP2013038843A
    • 2013-02-21
    • JP2011170796
    • 2011-08-04
    • Mitsubishi Electric Corp三菱電機株式会社Tokyo Institute Of Technology国立大学法人東京工業大学
    • HORIGUCHI GOJINAKATAKE HIROSHIAKAGI YASUBUMIFUJITA HIDEAKIIWATA YASUAKIURUSHIBATA HIROAKITOMINAGA SHINJI
    • H02M1/08
    • PROBLEM TO BE SOLVED: To provide a gate drive device that can implement switching control with satisfactory loss and noise characteristics even when operating conditions change.SOLUTION: The gate drive device includes: a constant current drive circuit 11C; a constant voltage drive circuit 11V; a circuit characteristic information holding section 15 for holding information on either or both of a switching loss and a radiation noise caused when each of the constant current drive circuit 11C and the constant voltage drive circuit 11V drives a switching element 2 with respect to a parameterized operating condition of the switching element 2; an operating condition detection section 14 for detecting the operating condition of the switching element 2; and a drive circuit switching sections 12, 13 for selecting either of the constant current drive circuit 11C and the constant voltage drive circuit 11V to drive the switching element 2 on the basis of the detected operating condition and the circuit characteristic information held by the circuit characteristic information holding section 15.
    • 要解决的问题:提供即使在操作条件改变时也能够实现具有令人满意的损耗和噪声特性的开关控制的栅极驱动装置。 栅极驱动装置包括:恒流驱动电路11C; 恒压驱动电路11V; 一个电路特性信息保持部分15,用于保持当恒定电流驱动电路11C和恒定电压驱动电路11V相对于参数化的操作驱动开关元件2时引起的开关损耗和辐射噪声中的一个或两个的信息 开关元件2的状态; 用于检测开关元件2的工作状态的工作条件检测部分14; 以及用于选择恒流驱动电路11C和恒压驱动电路11V中的任一个的驱动电路开关部12,13,以根据检测到的工作条件和由电路特性保持的电路特性信息来驱动开关元件2 信息保存部分15.版权所有(C)2013,JPO&INPIT