ACTIVE GATE DRIVE CIRCUIT
    1.
    发明申请
    ACTIVE GATE DRIVE CIRCUIT 有权
    主动门驱动电路

    公开(公告)号:US20130181750A1

    公开(公告)日:2013-07-18

    申请号:US13738624

    申请日:2013-01-10

    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。

    ACTIVE GATE DRIVE CIRCUIT
    2.
    发明申请
    ACTIVE GATE DRIVE CIRCUIT 有权
    主动门驱动电路

    公开(公告)号:US20140375362A1

    公开(公告)日:2014-12-25

    申请号:US14309171

    申请日:2014-06-19

    CPC classification number: H03K17/00 H03K17/166 H03K17/168

    Abstract: An exemplary gate drive circuit and method are disclosed for controlling a gate-controlled component, the gate drive circuit having a PI controller adapted to receive an input reference signal and to control a gate voltage of the gate-controlled component. The gate drive circuit can include a first feedback loop for the PI controller, the first feedback loop having a first gain (kv), a second feedback loop for the PI controller, the second feedback loop having a second gain (ki), and a clipping circuit adapted to modify a feedback signal in the second feedback loop during turn-on of the gate-controlled component when the time derivative of the collector current is negative. The first feedback loop can include a first blanking circuit adapted to cut the feedback loop when the gate-controlled component is in a blocking state.

    Abstract translation: 公开了用于控制栅极控制部件的示例性栅极驱动电路和方法,栅极驱动电路具有适于接收输入参考信号并控制栅极控制部件的栅极电压的PI控制器。 栅极驱动电路可以包括用于PI控制器的第一反馈回路,第一反馈回路具有第一增益(kv),用于PI控制器的第二反馈回路,第二反馈回路具有第二增益(ki),以及 限幅电路适于在集电极电流的时间导数为负时,在门控元件的导通期间修改第二反馈环路中的反馈信号。 第一反馈回路可以包括第一消隐电路,其适于在门控元件处于阻塞状态时切断反馈回路。

    GATE DRIVER UNIT FOR ELECTRICAL SWITCHING DEVICE
    3.
    发明申请
    GATE DRIVER UNIT FOR ELECTRICAL SWITCHING DEVICE 有权
    电动开关装置的门驱动单元

    公开(公告)号:US20130328599A1

    公开(公告)日:2013-12-12

    申请号:US13964366

    申请日:2013-08-12

    Abstract: An exemplary apparatus and method for using intelligent gate driver units with distributed intelligence to control antiparallel power modules or parallel-connected electrical switching devices like IGBTs is disclosed. The intelligent gate drive units use the intelligence to balance the currents of the switching devices, even in dynamic switching events. The intelligent gate driver units can use master-slave or daisy chain control structures and instantaneous or time integral differences of the currents of parallel-connected switching devices as control parameters. Instead of balancing the currents, temperature can also be balanced with the intelligent gate driver units.

    Abstract translation: 公开了一种使用具有分布式智能的智能门驱动器单元来控制反并联功率模块或并联电气开关器件(例如IGBT)的示例性装置和方法。 智能门驱动单元即使在动态切换事件中也使用智能来平衡开关器件的电流。 智能栅极驱动器单元可以使用主从或菊花链控制结构以及并联开关器件电流的瞬时或时间积分差作为控制参数。 代替平衡电流,温度也可以与智能门驱动器单元平衡。

Patent Agency Ranking