公开(公告)号：US20140203843A1

公开(公告)日：2014-07-24

申请号：US14159945

申请日：2014-01-21

Applicant: Control Techniques Limited

Inventor： Robert Anthony Cottell

IPC: H03K17/78

CPC classification number: H03K17/78 ,  H03K17/0826 ,  H03K17/0828 ,  H03K2217/0027

Abstract: A desaturation detection circuit for use between the desaturation detection input of an optocoupler and the output of a power switching device, the desaturation detection circuit comprising: a threshold setting element having an input and an output, the input for connection to the output of a power switching device via one or more diode(s), the threshold setting element being arranged to set a threshold voltage at the input at which the threshold setting element will provide an output at the output of the threshold setting element when the input voltage is exceeded, and a detector having an input connected to the output of the threshold setting element and an output connectable to a desaturation detection input of an optocoupler, the detector being arranged to detect an output at the output of the threshold setting element and in response to provide a control signal at the output of the detector for the desaturation detection input to trigger a desaturation routine in the optocoupler.

Abstract translation: 一种用于光耦合器的去饱和检测输入和功率开关器件的输出之间的去饱和检测电路，该去饱和检测电路包括：具有输入和输出的阈值设置元件，用于连接到功率输出的输入端 开关装置，所述阈值设定元件被配置为在所述输入端设定阈值电压，在所述输入处阈值设定元件将在所述输入电压超过时在所述阈值设定元件的输出处提供输出， 以及检测器，其具有连接到阈值设置元件的输出的输入端和可连接到光耦合器的去饱和检测输入的输出端，所述检测器被布置成检测阈值设置元件的输出处的输出，并且响应于提供 用于去饱和检测输入的检测器输出处的控制信号，以触发光耦合器中的去饱和程序。

公开(公告)号：US08970263B2

公开(公告)日：2015-03-03

申请号：US14030402

申请日：2013-09-18

Applicant: Control Techniques Limited

Inventor： Richard Samuel Gibson ,  Richard Mark Wain ,  Robert Anthony Cottell ,  Robert Gwyn Williams

IPC: H03K3/00 ,  H03K17/14 ,  H03K17/16

CPC classification number: H03K17/14 ,  H03K17/163 ,  H03K17/168

Abstract: A semiconductor device driving unit to supply a drive signal to a gate of a semiconductor switching device, the semiconductor device driving unit comprising: a plurality of gate impedance circuits selectably connectable to the gate of the semiconductor switching device; and a selector to select one or more of the gate impedance circuits to connect to the semiconductor switching device. Also provided is a method of supplying a drive signal to a gate of a semiconductor switching device, the method comprising: selecting one or more of a plurality of gate impedance circuits to be connected to the gate of the semiconductor switching device based on one or more operating conditions and stored data relating to the one or more operating conditions; and connecting the selected one or more of the gate impedance circuits to the semiconductor switching device.

Abstract translation: 一种半导体器件驱动单元，用于向半导体开关器件的栅极提供驱动信号，所述半导体器件驱动单元包括：可选择地连接到所述半导体开关器件的栅极的多个栅极阻抗电路; 以及选择器，用于选择一个或多个栅极阻抗电路以连接到半导体开关器件。 还提供了一种向半导体开关器件的栅极提供驱动信号的方法，所述方法包括：基于一个或多个选择要连接到半导体开关器件的栅极的多个栅极阻抗电路中的一个或多个 操作条件和与一个或多个操作条件有关的存储数据; 以及将所选择的一个或多个所述栅极阻抗电路连接到所述半导体开关器件。

公开(公告)号：US09214934B2

公开(公告)日：2015-12-15

申请号：US14159945

申请日：2014-01-21

Applicant: Control Techniques Limited

Inventor： Robert Anthony Cottell

IPC: H03K17/04 ,  H03K17/78 ,  H03K17/082

CPC classification number: H03K17/78 ,  H03K17/0826 ,  H03K17/0828 ,  H03K2217/0027

Abstract: A desaturation detection circuit for use between the desaturation detection input of an optocoupler and the output of a power switching device, the desaturation detection circuit comprising: a threshold setting element having an input and an output, the input for connection to the output of a power switching device via one or more diode(s), the threshold setting element being arranged to set a threshold voltage at the input at which the threshold setting element will provide an output at the output of the threshold setting element when the input voltage is exceeded, and a detector having an input connected to the output of the threshold setting element and an output connectable to a desaturation detection input of an optocoupler, the detector being arranged to detect an output at the output of the threshold setting element and in response to provide a control signal at the output of the detector for the desaturation detection input to trigger a desaturation routine in the optocoupler.

Abstract translation: 一种用于光耦合器的去饱和检测输入和功率开关器件的输出之间的去饱和检测电路，该去饱和检测电路包括：具有输入和输出的阈值设置元件，用于连接到功率输出的输入端 开关装置，所述阈值设定元件被配置为在所述输入端设定阈值电压，在所述输入处阈值设定元件将在所述输入电压超过时在所述阈值设定元件的输出处提供输出， 以及检测器，其具有连接到阈值设置元件的输出的输入端和可连接到光耦合器的去饱和检测输入的输出端，所述检测器被布置成检测阈值设置元件的输出处的输出，并且响应于提供 用于去饱和检测输入的检测器输出处的控制信号，以触发光耦合器中的去饱和程序。

公开(公告)号：US20140077848A1

公开(公告)日：2014-03-20

申请号：US14030402

申请日：2013-09-18

Applicant: Control Techniques Limited

Inventor： Richard Samuel Gibson ,  Richard Mark Wain ,  Robert Anthony Cottell ,  Robert Gwyn Williams

IPC: H03K17/14

CPC classification number: H03K17/14 ,  H03K17/163 ,  H03K17/168

Abstract: A semiconductor device driving unit to supply a drive signal to a gate of a semiconductor switching device, the semiconductor device driving unit comprising: a plurality of gate impedance circuits selectably connectable to the gate of the semiconductor switching device; and a selector to select one or more of the gate impedance circuits to connect to the semiconductor switching device. Also provided is a method of supplying a drive signal to a gate of a semiconductor switching device, the method comprising: selecting one or more of a plurality of gate impedance circuits to be connected to the gate of the semiconductor switching device based on one or more operating conditions and stored data relating to the one or more operating conditions; and connecting the selected one or more of the gate impedance circuits to the semiconductor switching device.

Abstract translation: 一种半导体器件驱动单元，用于向半导体开关器件的栅极提供驱动信号，所述半导体器件驱动单元包括：可选择地连接到所述半导体开关器件的栅极的多个栅极阻抗电路; 以及选择器，用于选择一个或多个栅极阻抗电路以连接到半导体开关器件。 还提供了一种向半导体开关器件的栅极提供驱动信号的方法，所述方法包括：基于一个或多个选择要连接到半导体开关器件的栅极的多个栅极阻抗电路中的一个或多个 操作条件和与一个或多个操作条件有关的存储数据; 以及将所选择的一个或多个所述栅极阻抗电路连接到所述半导体开关器件。