公开(公告)号：US20130083564A1

公开(公告)日：2013-04-04

申请号：US13629612

申请日：2012-09-28

申请人： Yong-Jiang Bai ,  Qiao-Liang Chen ,  Ju-Lu Sun

发明人： Yong-Jiang Bai ,  Qiao-Liang Chen ,  Ju-Lu Sun

IPC分类号： H02M3/335

CPC分类号： H02M3/33592 ,  H02M2001/0032 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02B70/1491 ,  Y02B70/16 ,  Y02P80/112

摘要： A resonant power conversion apparatus including a transformer-based resonant converter and first and second switch control units is provided. The transformer-based resonant converter includes a primary switch circuit and a secondary output circuit configured to provide an output voltage to a load. The first switch control unit is configured to control an ON/OFF operation of the primary switch circuit in response to a status of the load. The second switch control unit is configured to determine whether to activate or inactivate the first switch control unit. When the status of the load is the light-loading or the no-loading, the first switch control unit intermittently controls the ON/OFF operation of the primary switch circuit, and meanwhile, the first switch control unit is inactivated during the primary switch circuit is disabled, so as to substantially reduce the light-loading or no-loading loss of the resonant power conversion apparatus.

摘要翻译： 提供一种包括基于变压器的谐振转换器和第一和第二开关控制单元的谐振功率转换装置。 基于变压器的谐振变换器包括一个初级开关电路和一个辅助输出电路，其被配置为向负载提供输出电压。 第一开关控制单元被配置为响应于负载的状态来控制一次开关电路的接通/断开操作。 第二开关控制单元被配置为确定是否激活或停用第一开关控制单元。 当负载状态为轻负载或无负载时，第一开关控制单元间歇地控制一次开关电路的ON / OFF操作，同时第一开关控制单元在一次开关电路期间失活 被禁用，以便大幅度地减少谐振功率转换装置的轻负载或无负载损耗。

公开(公告)号：US08710875B2

公开(公告)日：2014-04-29

申请号：US13474737

申请日：2012-05-18

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

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

IPC分类号： H03B1/00 ,  H03K3/00

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： 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.

摘要翻译： 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：US09030846B2

公开(公告)日：2015-05-12

申请号：US13629612

申请日：2012-09-28

申请人： Yong-Jiang Bai ,  Qiao-Liang Chen ,  Ju-Lu Sun

发明人： Yong-Jiang Bai ,  Qiao-Liang Chen ,  Ju-Lu Sun

IPC分类号： H02M3/335 ,  H02M1/00

CPC分类号： H02M3/33592 ,  H02M2001/0032 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02B70/1491 ,  Y02B70/16 ,  Y02P80/112

摘要： A resonant power conversion apparatus including a transformer-based resonant converter and first and second switch control units is provided. The transformer-based resonant converter includes a primary switch circuit and a secondary output circuit configured to provide an output voltage to a load. The first switch control unit is configured to control an ON/OFF operation of the primary switch circuit in response to a status of the load. The second switch control unit is configured to determine whether to activate or inactivate the first switch control unit. When the status of the load is the light-loading or the no-loading, the first switch control unit intermittently controls the ON/OFF operation of the primary switch circuit, and meanwhile, the first switch control unit is inactivated during the primary switch circuit is disabled, so as to substantially reduce the light-loading or no-loading loss of the resonant power conversion apparatus.

摘要翻译： 提供一种包括基于变压器的谐振转换器和第一和第二开关控制单元的谐振功率转换装置。 基于变压器的谐振变换器包括一个初级开关电路和一个辅助输出电路，其被配置为向负载提供输出电压。 第一开关控制单元被配置为响应于负载的状态来控制一次开关电路的接通/断开操作。 第二开关控制单元被配置为确定是否激活或停用第一开关控制单元。 当负载状态为轻负载或无负载时，第一开关控制单元间歇地控制一次开关电路的接通/断开操作，同时第一开关控制单元在一次开关电路期间失活 被禁用，以便大幅度地减少谐振功率转换装置的轻负载或无负载损耗。

公开(公告)号：US20120293219A1

公开(公告)日：2012-11-22

申请号：US13474737

申请日：2012-05-18

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

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

IPC分类号： H03K3/36

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： 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.

摘要翻译： 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。