公开(公告)号：US08710875B2

公开(公告)日：2014-04-29

申请号：US13474737

申请日：2012-05-18

Applicant: Yong-Jiang Bai ,  Qiao-Liang Chen ,  Ning-Bin Wang ,  Ju-Lu Sun

Inventor： Yong-Jiang Bai ,  Qiao-Liang Chen ,  Ning-Bin Wang ,  Ju-Lu Sun

IPC: H03B1/00 ,  H03K3/00

CPC classification number: H02M3/1588 ,  Y02B70/1466

Abstract: A bootstrap gate driver including a load indication unit, a bootstrap gate-drive unit and a drive-control unit is provided. The load indication unit is configured to generate a load indication signal in response to a state of a load. The bootstrap gate-drive unit is configured to drive a switch-transistor circuit in response to an inputted pulse-width-modulation (PWM) signal, wherein the switch-transistor circuit has a high-side driving path and a low-side driving path. The drive-control unit is coupled to the load indication unit and the bootstrap gate-drive unit, and configured to enable or disable the high-side driving path in response to the load indication signal. In the invention, the operation of the low-side driving path is not affected by enabling or disabling the high-side driving path.

Abstract translation: 提供了包括负载指示单元，自举门驱动单元和驱动控制单元的自举门驱动器。 负载指示单元被配置为响应于负载的状态产生负载指示信号。 自举门驱动单元被配置为响应于输入的脉宽调制（PWM）信号来驱动开关晶体管电路，其中开关晶体管电路具有高侧驱动路径和低侧驱动路径 。 驱动控制单元耦合到负载指示单元和自举门驱动单元，并且被配置为响应于负载指示信号来启用或禁用高侧驱动路径。 在本发明中，低侧驱动路径的动作不受启用或禁用高侧驱动路径的影响。

公开(公告)号：US20120293219A1

公开(公告)日：2012-11-22

申请号：US13474737

申请日：2012-05-18

Applicant: Yong-Jiang Bai ,  Qiao-Liang Chen ,  Ning-Bin Wang ,  Ju-Lu Sun

Inventor： Yong-Jiang Bai ,  Qiao-Liang Chen ,  Ning-Bin Wang ,  Ju-Lu Sun

IPC: H03K3/36

CPC classification number: H02M3/1588 ,  Y02B70/1466

Abstract: A bootstrap gate driver including a load indication unit, a bootstrap gate-drive unit and a drive-control unit is provided. The load indication unit is configured to generate a load indication signal in response to a state of a load. The bootstrap gate-drive unit is configured to drive a switch-transistor circuit in response to an inputted pulse-width-modulation (PWM) signal, wherein the switch-transistor circuit has a high-side driving path and a low-side driving path. The drive-control unit is coupled to the load indication unit and the bootstrap gate-drive unit, and configured to enable or disable the high-side driving path in response to the load indication signal. In the invention, the operation of the low-side driving path is not affected by enabling or disabling the high-side driving path.

Abstract translation: 提供了包括负载指示单元，自举门驱动单元和驱动控制单元的自举门驱动器。 负载指示单元被配置为响应于负载的状态产生负载指示信号。 自举门驱动单元被配置为响应于输入的脉宽调制（PWM）信号来驱动开关晶体管电路，其中开关晶体管电路具有高侧驱动路径和低侧驱动路径 。 驱动控制单元耦合到负载指示单元和自举门驱动单元，并且被配置为响应于负载指示信号来启用或禁用高侧驱动路径。 在本发明中，低侧驱动路径的动作不受启用或禁用高侧驱动路径的影响。