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JP2014027831A Power conversion device in which switching elements are connected in parallel and driven in parallel 有权
标题翻译：开关元件并联连接并并联驱动的电力转换装置
公开(公告)号：JP2014027831A
公开(公告)日：2014-02-06
申请号：JP2012168229
申请日：2012-07-30
申请人： Fanuc Ltd , ファナック株式会社
发明人： MAKITA HAJIME , WATANABE MASATO
IPC分类号： H02M1/08 , H02M1/00 , H02M7/5387
CPC分类号： H02M7/5387 , H02M7/493 , H03K17/127 , H03K17/168
摘要： PROBLEM TO BE SOLVED: To provide a power conversion device configured by connecting switching elements in parallel which can prevent the switching elements from operating erratically or breaking down due to a voltage oscillation occurring in main circuit wiring and signal lines.SOLUTION: A power conversion device 1 which converts DC power to AC power by switching operation of switching elements and outputs converted power comprises: a bridge circuit 11 configured by connecting at least two series circuits in parallel via a power output terminal thereof, each composed of two switching elements which are mutually connected in series, whose terminals at opposite ends are made power input terminals, and the junction of which serves as the power output terminal; a drive circuit 12 which outputs a drive signal to control on/off of the switching elements; and signal lines which are separately wired starting from a drive signal output terminal of the drive circuit 12 for each switching element in each series circuit supplied with the same drive signal from the drive signal output terminal and each of which has substantially equal inductance.
摘要翻译：要解决的问题：提供一种电力转换装置，其通过并联连接开关元件而构成，能够防止开关元件由于主电路布线和信号线中发生的电压振荡而不稳定地运行或分解。解决方案：电力转换装置 1，其通过开关元件的切换操作将直流电力转换成交流电力并输出转换功率包括：桥接电路11，其经由其功率输出端并联连接至少两个串联电路，每个由相互相互的两个开关元件串联连接，其两端的端子为电源输入端子，其接点作为电源输出端子; 驱动电路12，其输出用于控制开关元件的通/断的驱动信号; 以及从驱动信号输出端提供与驱动信号输出端相同的驱动信号的每个串联电路中的每个开关元件的驱动电路12的驱动信号输出端子分开布线的信号线，并且每个开关元件具有大致相等的电感。

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