公开(公告)号：US09124168B2

公开(公告)日：2015-09-01

申请号：US12982911

申请日：2010-12-31

申请人： Ju-Lu Sun ,  Jing-Peng Zhu ,  Ming Xu

发明人： Ju-Lu Sun ,  Jing-Peng Zhu ,  Ming Xu

IPC分类号： H02M3/335 ,  H02M5/08 ,  H02M5/00

CPC分类号： H02M5/08 ,  H02M5/00

摘要： A method and apparatus used for electric isolation transmission are provided. The method includes: providing an isolation transmission circuit having at least one capacitor; and implementing electric isolation between the primary side and secondary side, and suppressing leakage currents generated between the primary side and secondary side and transmitting power. The apparatus includes the isolation transmission circuit that is manufactured by capacitor(s). The apparatus can be applied to light-weight power sources providing AC/DC outputs with high efficiency, adapters, or related products. In addition, the apparatus has a reduced size and higher power transmission efficiency.

摘要翻译： 提供了用于电隔离传输的方法和装置。 该方法包括：提供具有至少一个电容器的隔离传输电路; 并实现初级侧和次级侧之间的电隔离，并且抑制在初级侧和次级侧之间产生的泄漏电流并发射功率。 该装置包括由电容器制造的隔离传输电路。 该装置可以应用于提供具有高效率，适配器或相关产品的AC / DC输出的轻量级电源。 此外，该装置具有减小的尺寸和更高的功率传输效率。

公开(公告)号：US08860471B2

公开(公告)日：2014-10-14

申请号：US13624964

申请日：2012-09-23

申请人： Ming Xu ,  Jing-Peng Zhu ,  Ju-Lu Sun ,  Zhang-He Nan

发明人： Ming Xu ,  Jing-Peng Zhu ,  Ju-Lu Sun ,  Zhang-He Nan

IPC分类号： H03K3/00 ,  H03K17/691 ,  H02M1/08 ,  H03K17/16 ,  H02M1/32 ,  H03K17/0812

CPC分类号： H02M1/08 ,  H02M1/32 ,  H03K17/08122 ,  H03K17/161 ,  H03K17/691

摘要： An isolated gate driver including a driving control circuit, an isolated transformer, an anti-circuit and a secondary processing circuit is provided. The driving control circuit is configured to generate a driving PWM signal for driving a power switch tube. The isolated transformer has a primary winding and a secondary winding. The anti-circuit is connected between the driving control circuit and the primary winding of the isolated transformer, and is configured to suppress a variation of an induced voltage in the secondary winding of the isolated transformer when a duty cycle of the driving PWM signal is sharply decreased. The secondary processing circuit is connected in parallel with the secondary winding of the isolated transformer, and is configured to perform a voltage clamping action on a gate-source voltage of the power switch tube when the duty cycle of the driving PWM signal is sharply decreased.

摘要翻译： 提供了包括驱动控制电路，隔离变压器，防电路和二次处理电路的隔离栅极驱动器。 驱动控制电路被配置为产生用于驱动电源开关管的驱动PWM信号。 隔离变压器具有初级绕组和次级绕组。 防电路连接在驱动控制电路和隔离变压器的初级绕组之间，并且被配置为当驱动PWM信号的占空比急剧减小时，抑制隔离变压器的次级绕组中的感应电压的变化 减少。 二次处理电路与隔离变压器的次级绕组并联连接，并且被配置为当驱动PWM信号的占空比急剧减小时，对功率开关管的栅极 - 源极电压进行钳位动作。

公开(公告)号：US20130076406A1

公开(公告)日：2013-03-28

申请号：US13624964

申请日：2012-09-23

申请人： Ming Xu ,  Jing-Peng Zhu ,  Ju-Lu Sun ,  Zhang-He Nan

发明人： Ming Xu ,  Jing-Peng Zhu ,  Ju-Lu Sun ,  Zhang-He Nan

IPC分类号： H03K17/691

CPC分类号： H02M1/08 ,  H02M1/32 ,  H03K17/08122 ,  H03K17/161 ,  H03K17/691

摘要： An isolated gate driver including a driving control circuit, an isolated transformer, an anti-circuit and a secondary processing circuit is provided. The driving control circuit is configured to generate a driving PWM signal for driving a power switch tube. The isolated transformer has a primary winding and a secondary winding. The anti-circuit is connected between the driving control circuit and the primary winding of the isolated transformer, and is configured to suppress a variation of an induced voltage in the secondary winding of the isolated transformer when a duty cycle of the driving PWM signal is sharply decreased. The secondary processing circuit is connected in parallel with the secondary winding of the isolated transformer, and is configured to perform a voltage clamping action on a gate-source voltage of the power switch tube when the duty cycle of the driving PWM signal is sharply decreased.

摘要翻译： 提供了包括驱动控制电路，隔离变压器，防电路和二次处理电路的隔离栅极驱动器。 驱动控制电路被配置为产生用于驱动电源开关管的驱动PWM信号。 隔离变压器具有初级绕组和次级绕组。 防电路连接在驱动控制电路和隔离变压器的初级绕组之间，并且被配置为当驱动PWM信号的占空比急剧减小时，抑制隔离变压器的次级绕组中的感应电压的变化 减少。 二次处理电路与隔离变压器的次级绕组并联连接，并且被配置为当驱动PWM信号的占空比急剧减小时，对功率开关管的栅极 - 源极电压进行钳位动作。

公开(公告)号：US20110157929A1

公开(公告)日：2011-06-30

申请号：US12982911

申请日：2010-12-31

申请人： Ju-Lu Sun ,  Jing-Peng Zhu ,  Ming Xu

发明人： Ju-Lu Sun ,  Jing-Peng Zhu ,  Ming Xu

IPC分类号： H02M5/45

CPC分类号： H02M5/08 ,  H02M5/00

摘要： A method and apparatus used for electric isolation transmission are provided. The method includes: providing an isolation transmission circuit having at least one capacitor; and implementing electric isolation between the primary side and secondary side, and suppressing leakage currents generated between the primary side and secondary side and transmitting power. The apparatus includes the isolation transmission circuit that is manufactured by capacitor(s). The apparatus can be applied to light-weight power sources providing AC/DC outputs with high efficiency, adapters, or related products. In addition, the apparatus has a reduced size and higher power transmission efficiency.

摘要翻译： 提供了用于电隔离传输的方法和装置。 该方法包括：提供具有至少一个电容器的隔离传输电路; 并实现初级侧和次级侧之间的电隔离，并且抑制在初级侧和次级侧之间产生的泄漏电流并发射功率。 该设备包括由电容器制造的隔离传输电路。 该装置可以应用于提供具有高效率，适配器或相关产品的AC / DC输出的轻量级电源。 此外，该装置具有减小的尺寸和更高的功率传输效率。

公开(公告)号：US20120159202A1

公开(公告)日：2012-06-21

申请号：US13325068

申请日：2011-12-14

申请人： Ming Xu ,  Zhang-He Nan ,  Ju-Lu Sun ,  Wen-Chang Han

发明人： Ming Xu ,  Zhang-He Nan ,  Ju-Lu Sun ,  Wen-Chang Han

IPC分类号： G06F1/26

CPC分类号： G06F1/26 ,  G06F1/263

摘要： A power supply apparatus suitable for a computer is provided. The provided power supply apparatus includes an isolated DC-DC converter, an auxiliary power conversion circuit and a switching circuit. The isolated DC-DC converter receives and converts an input voltage, so as to generate a first main power. The auxiliary power conversion circuit receives and converts the input voltage, so as to generate an auxiliary power. The switching circuit receives the first main power and the auxiliary power, wherein the switching circuit outputs the received auxiliary power to be served as a standby power of the power supply apparatus when the power supply apparatus is in a standby state; moreover, the switching circuit outputs the received first main power to be served as the standby power of the power supply apparatus when the power supply apparatus is in an operation state.

摘要翻译： 提供适用于计算机的电源装置。 所提供的电源装置包括隔离DC-DC转换器，辅助电力转换电路和开关电路。 隔离DC-DC转换器接收并转换输入电压，以产生第一主电源。 辅助电力转换电路接收并转换输入电压，从而产生辅助电力。 切换电路接收第一主电源和辅助电源，其中，当供电装置处于待机状态时，切换电路输出接收到的辅助电力作为供电装置的待机电力; 此外，当电源装置处于操作状态时，开关电路输出接收到的第一主电力作为供电装置的待机电力。

公开(公告)号：US08692524B2

公开(公告)日：2014-04-08

申请号：US13450434

申请日：2012-04-18

申请人： Ju-Lu Sun ,  Bo Ma ,  Ming Xu

发明人： Ju-Lu Sun ,  Bo Ma ,  Ming Xu

IPC分类号： H02M3/158

CPC分类号： H02M3/1584

摘要： A direct current (DC)-to-DC conversion apparatus is provided. The provided DC-to-DC conversion apparatus is composed of two boost circuits, in which inputs of both boost circuits are connected in parallel, and outputs of both boost circuits are connected in series. Accordingly, when the provided DC-to-DC conversion apparatus is operated, the DC input power would be firstly sampled and determined, and then the operations of the first and the second switch devices disposed therein would be controlled in response to the sampled-determined result, such that both boost circuits would be respectively operated in different input conditions, for example, the input is normally-connected or the input is reverse-connected. Accordingly, regardless of the input of normal connection or the input of reverse connection, the provided DC-to-DC conversion apparatus can perform the function of DC-to-DC conversion, thereby enabling the applied product to be normally operated even the input is reverse-connected.

摘要翻译： 提供直流（DC）到DC转换装置。 提供的DC-DC转换装置由两个升压电路组成，其中两个升压电路的输入并联连接，并且两个升压电路的输出串联连接。 因此，当所提供的DC-DC转换装置被操作时，将首先对DC输入功率进行采样和确定，然后响应于采样确定的控制来控制设置在其中的第一和第二开关装置的操作 结果，使得两个升压电路将分别在不同的输入条件下操作，例如，输入是正常连接的或者输入反向连接。 因此，不管正常连接的输入或反向连接的输入如何，所提供的DC-DC转换装置可以执行DC-DC转换的功能，从而使得应用产品即使是输入也是正常的 反向连接。

公开(公告)号：US20130077370A1

公开(公告)日：2013-03-28

申请号：US13626892

申请日：2012-09-26

申请人： Lin-Lin Gu ,  Chuan-Yun Wang ,  Ming Xu ,  Ju-Lu Sun

发明人： Lin-Lin Gu ,  Chuan-Yun Wang ,  Ming Xu ,  Ju-Lu Sun

IPC分类号： H02M7/06

CPC分类号： H02M1/4225 ,  H02M3/156 ,  H02M2001/0025 ,  Y02B70/126

摘要： An AC-to-DC power supply apparatus and a power control structure and method thereof are provided. The provided method includes: making an AC-to-DC converter in the AC-to-DC power supply apparatus convert an AC input voltage in response to a driving signal, so as to generate a DC output voltage; sampling a rectified voltage relating to the AC input voltage, so as to provide a sampling signal; providing an output feedback signal relating to an output of the AC-to-DC converter; multiplying the sampling signal by the output feedback signal, so as to provide a product signal; performing a signal modulation on the product signal, so as to generate the driving signal to control a switching of a main power switch in the AC-to-DC converter; and performing an amplitude-limiting process on the sampling signal or the product signal.

摘要翻译： 提供了一种AC至DC电源装置及其功率控制结构及其方法。 所提供的方法包括：使AC-DC转换器响应于驱动信号转换AC输入电压，以产生DC输出电压; 对与AC输入电压有关的整流电压进行采样，以提供采样信号; 提供与所述AC-DC转换器的输出有关的输出反馈信号; 将采样信号乘以输出反馈信号，以提供产品信号; 对产品信号执行信号调制，以产生驱动信号以控制AC-DC转换器中的主电源开关的切换; 对采样信号或产品信号执行限幅处理。

公开(公告)号：US09318949B2

公开(公告)日：2016-04-19

申请号：US13626892

申请日：2012-09-26

申请人： Lin-Lin Gu ,  Chuan-Yun Wang ,  Ming Xu ,  Ju-Lu Sun

发明人： Lin-Lin Gu ,  Chuan-Yun Wang ,  Ming Xu ,  Ju-Lu Sun

IPC分类号： H02M1/42 ,  H02M3/156 ,  H02M1/00

CPC分类号： H02M1/4225 ,  H02M3/156 ,  H02M2001/0025 ,  Y02B70/126

摘要： An AC-to-DC power supply apparatus and a power control structure and method thereof are provided. The provided method includes: making an AC-to-DC converter in the AC-to-DC power supply apparatus convert an AC input voltage in response to a driving signal, so as to generate a DC output voltage; sampling a rectified voltage relating to the AC input voltage, so as to provide a sampling signal; providing an output feedback signal relating to an output of the AC-to-DC converter; multiplying the sampling signal by the output feedback signal, so as to provide a product signal; performing a signal modulation on the product signal, so as to generate the driving signal to control a switching of a main power switch in the AC-to-DC converter; and performing an amplitude-limiting process on the sampling signal or the product signal.

摘要翻译： 提供了一种AC至DC电源装置及其功率控制结构及其方法。 所提供的方法包括：使AC-DC转换器响应于驱动信号转换AC输入电压，以产生DC输出电压; 对与AC输入电压有关的整流电压进行采样，以提供采样信号; 提供与所述AC-DC转换器的输出有关的输出反馈信号; 将采样信号乘以输出反馈信号，以提供产品信号; 对产品信号执行信号调制，以产生驱动信号以控制AC-DC转换器中的主电源开关的切换; 对采样信号或产品信号执行限幅处理。

公开(公告)号：US20120268097A1

公开(公告)日：2012-10-25

申请号：US13450434

申请日：2012-04-18

申请人： Ju-Lu Sun ,  Bo Ma ,  Ming Xu

发明人： Ju-Lu Sun ,  Bo Ma ,  Ming Xu

IPC分类号： G05F5/00 ,  H01F38/00

CPC分类号： H02M3/1584

摘要： A direct current (DC)-to-DC conversion apparatus is provided. The provided DC-to-DC conversion apparatus is composed of two boost circuits, in which inputs of both boost circuits are connected in parallel, and outputs of both boost circuits are connected in series. Accordingly, when the provided DC-to-DC conversion apparatus is operated, the DC input power would be firstly sampled and determined, and then the operations of the first and the second switch devices disposed therein would be controlled in response to the sampled-determined result, such that both boost circuits would be respectively operated in different input conditions, for example, the input is normally-connected or the input is reverse-connected. Accordingly, regardless of the input of normal connection or the input of reverse connection, the provided DC-to-DC conversion apparatus can perform the function of DC-to-DC conversion, thereby enabling the applied product to be normally operated even the input is reverse-connected.

摘要翻译： 提供直流（DC）到DC转换装置。 提供的DC-DC转换装置由两个升压电路组成，其中两个升压电路的输入并联连接，并且两个升压电路的输出串联连接。 因此，当所提供的DC-DC转换装置被操作时，将首先对DC输入功率进行采样和确定，然后响应于采样确定的控制来控制设置在其中的第一和第二开关装置的操作 结果，使得两个升压电路将分别在不同的输入条件下操作，例如，输入是正常连接的或者输入反向连接。 因此，不管正常连接的输入或反向连接的输入如何，所提供的DC-DC转换装置可以执行DC-DC转换的功能，从而使得应用产品即使是输入也是正常的 反向连接。

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。