INVERTER AND POWER SYSTEM WITH FUSE PROTECTION
    44.
    发明申请
    INVERTER AND POWER SYSTEM WITH FUSE PROTECTION 有权
    具有保险丝的逆变器和电源系统

    公开(公告)号:US20140339890A1

    公开(公告)日:2014-11-20

    申请号:US14364201

    申请日:2012-12-18

    Abstract: A power conversion system includes a bus bar, a switch coupled to the bus bar and configured to receive a DC input voltage from a voltage source through the bus bar, and a parallel fuse system. The parallel fuse system may be disposed on the bus bar in series with the voltage source and the switch. The parallel fuse system includes two or more parallel fuses, and may be configured for an inductance imbalance between the fuses, such that there is an asymmetric flow of currents through the fuses when the power conversion system is in operation. For the inductance imbalance, for example, the fuses may be positioned asymmetrically with regard to a shortest conductive path from the voltage source to the switch.

    Abstract translation: 电力转换系统包括汇流条,耦合到母线并被配置为通过汇流条从电压源接收DC输入电压的开关和并联保险丝系统。 并联保险丝系统可以与电压源和开关串联布置在母线上。 并联保险丝系统包括两个或更多个并联保险丝,并且可以被配置用于保险丝之间的电感不平衡,使得当电力转换系统运行时存在通过保险丝的不对流电流。 对于电感不平衡,例如,保险丝可以相对于从电压源到开关的最短导电路径非对称地定位。

    Systems and methods for controlling dynamic avalanche in switching devices

    公开(公告)号:US10897250B2

    公开(公告)日:2021-01-19

    申请号:US16193926

    申请日:2018-11-16

    Abstract: Systems and methods for mitigating occurrences of dynamic avalanche events are presented. An electrical system may include a gate-drive unit electrically coupled to a semiconductor switching device and used to drive the switching device by applying a voltage to a gate terminal of the switching device. The electrical system may also include a controller that indicates the switching device to turn off and determines system parameters in response to the switching device turning-off. The controller may determine an intermediate gate voltage based at least in part on the system parameters and may modify the gate-drive unit configuration to apply the appropriate intermediate gate voltage to the gate terminal. The controller may additionally modify the gate-drive unit configuration to apply a turn-off voltage at the gate terminal subsequent to the application of the intermediate gate voltage.

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