公开(公告)号：US08710876B2

公开(公告)日：2014-04-29

申请号：US13738624

申请日：2013-01-10

Applicant: ABB Research Ltd

Inventor： Yanich Lobsiger ,  Johann Walter Kolar ,  Matti Laitinen

IPC: H03B1/00

CPC classification number: H03K17/06 ,  H03K17/08148 ,  H03K17/0828 ,  H03K17/166 ,  H03K17/168

Abstract: Exemplary embodiments are directed to a gate drive circuit and a method for controlling a gate-controlled component. The gate drive circuit includes a PI controller that receives an input reference signal (vref,d/dt) controls a gate voltage of the gate-controlled component. The gate drive circuit also includes a first feedback loop for the PI controller adapted to provide feedback from a time derivative of a collector-to-emitter voltage (vCE) of the controlled component. The first feedback loop has a first gain (kv). A second is provided in the gate drive circuit feedback loop for the PI controller that provides feedback from the time derivative of the collector current (iC) of the controlled component. The second feedback loop has second gain (ki) and includes a clipping circuit that modifies the feedback signal in the second feedback loop during turn-on of the controlled component when the time derivative of the collector current is negative.

Abstract translation: 示例性实施例涉及栅极驱动电路和用于控制栅极控制部件的方法。 栅极驱动电路包括PI控制器，其接收输入参考信号（vref，d / dt）来控制栅极控制部件的栅极电压。 栅极驱动电路还包括用于PI控制器的第一反馈环路，其适于从受控部件的集电极 - 发射极电压（vCE）的时间导数提供反馈。 第一反馈回路具有第一增益（kv）。 在PI控制器的栅极驱动电路反馈回路中提供第二个，其提供来自受控部件的集电极电流（iC）的时间导数的反馈。 第二反馈回路具有第二增益（ki），并且包括削减电路，当集电极电流的时间导数为负时，限幅电路在受控部件的导通期间修改第二反馈环路中的反馈信号。