公开(公告)号：US20140359329A1

公开(公告)日：2014-12-04

申请号：US14279341

申请日：2014-05-16

Applicant: ASUSTeK COMPUTER INC.

Inventor： Xiao-Feng ZHOU ,  Ching-Ji LIANG

IPC: G06F1/32

CPC classification number: H02J1/02 ,  H02M1/088 ,  H02M3/158 ,  H02M3/1588 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

Abstract: An adaptive power-switch circuit suitable for an electronic device includes a multi-gate power switch module, a monitoring module and a driving controller circuit. The multi-gate power switch module includes to plurality of power switch units connected in parallel. The power switch units include a gate control terminal respectively. The monitoring module is used to monitor an operating load of the electronic device. The driving control circuit is coupled to the monitoring module to selectively disable the gate controlling terminals to form a plurality of configurations. The driving control circuit selects one of the configurations to operate the multi-gate power switch module according to the operating load.

Abstract translation: 适用于电子设备的自适应功率开关电路包括多栅极功率开关模块，监测模块和驱动控制器电路。 多栅极功率开关模块包括并联连接的多个功率开关单元。 电源开关单元分别包括一个门控制端子。 监控模块用于监控电子设备的工作负载。 驱动控制电路耦合到监控模块，以选择性地禁用门控制端子以形成多个配置。 驱动控制电路根据操作负载选择一种配置来操作多门电源开关模块。

公开(公告)号：US20160126721A1

公开(公告)日：2016-05-05

申请号：US14856572

申请日：2015-09-17

Applicant: ASUSTeK COMPUTER INC.

Inventor： Xiao-Feng ZHOU ,  Wei HAN ,  Ching-Ji LIANG

IPC: H02H3/20

CPC classification number: H02H9/001 ,  H02H3/207

Abstract: An electronic device and a power protection method are provided. The electronic device includes a transfer port, a switch, a first detecting unit and a second detecting unit. The transfer port provides a driving voltage to an external device. The switch is coupled between the transfer port and a supply power source, and the switch is selectively turned off according to at least one of a first control signal and a second control signal. The first detecting unit generates the first control signal when a voltage drop of the driving voltage exceeds a threshold voltage. The second detecting unit generates a sampling voltage by detecting the driving voltage and generates the second control signal when the sampling voltage is lower than a first reference voltage. The electronic device can provide a power protection when an external device is plugged in/out the transfer port.

Abstract translation: 提供电子设备和电源保护方法。 电子设备包括传送端口，开关，第一检测单元和第二检测单元。 传输端口向外部设备提供驱动电压。 开关耦合在传送端口和电源之间，并且根据第一控制信号和第二控制信号中的至少一个有选择地关闭开关。 当驱动电压的电压降超过阈值电压时，第一检测单元产生第一控制信号。 第二检测单元通过检测驱动电压产生采样电压，并且当采样电压低于第一参考电压时产生第二控制信号。 当外部设备插入/拔出传输端口时，电子设备可以提供电源保护。

公开(公告)号：US20190280499A1

公开(公告)日：2019-09-12

申请号：US16283893

申请日：2019-02-25

Applicant: ASUSTeK COMPUTER INC.

Inventor： Kai-Chun LIANG ,  Wei-Chen TU ,  Hsiang-Jui HUNG ,  Xiao-Feng ZHOU ,  Wen-Hsiang YANG

IPC: H02J7/00 ,  G01R31/382 ,  H01M10/48 ,  H01M10/44

Abstract: A battery management device includes a detection circuit, a charge control circuit, and a discharge control circuit. The detection circuit is configured to output a first control signal and a second control signal according to a volume of a rechargeable battery. The charge control circuit is electrically coupled to the rechargeable battery and the detection circuit, and configured to open a charge loop of the rechargeable battery according to the first control signal. The discharge control circuit is electrically coupled to the rechargeable battery and the detection circuit, and configured to close a discharge path of the rechargeable battery according to the second control signal.

公开(公告)号：US20190089248A1

公开(公告)日：2019-03-21

申请号：US16128091

申请日：2018-09-11

Applicant: ASUSTeK COMPUTER INC.

Inventor： Tao CHEN ,  Xiao-Feng ZHOU ,  Ching-Ji LIANG

IPC: H02M3/158 ,  H02M1/36 ,  H02M1/08 ,  G01R19/165

Abstract: A voltage conversion apparatus includes a power supply circuit with a first switch, a voltage conversion circuit, and a protective circuit with a detection circuit. The first switch transmits a power to generate an input voltage. The voltage conversion circuit generates a first voltage. A second switch of the voltage conversion circuit receives the input voltage. A third switch of the voltage conversion circuit is coupled between the second switch and a ground terminal. The detection circuit generates a first control signal based on the first voltage, a second voltage that corresponds to the first voltage, and a reference voltage. When a voltage value of an error signal is less than the reference voltage, the detection circuit outputs the first control signal to turn off the first switch. The voltage value of the error signal corresponds to a voltage difference between the first voltage and the second voltage.

公开(公告)号：US20170156185A1

公开(公告)日：2017-06-01

申请号：US15343228

申请日：2016-11-04

Applicant: ASUSTeK COMPUTER INC.

Inventor： Xiao-Feng ZHOU ,  Ching-Ji LIANG

IPC: H05B33/08

CPC classification number: H05B33/0845

Abstract: A dimming control circuit for adjusting brightness of a light-emitting component is provided. The dimming control circuit includes a driving transistor, an amplifier and a control circuit. The driving transistor is coupled to the light-emitting component The amplifier includes a first input terminal and an output terminal. The output terminal is coupled to a gate of the driving transistor. The control circuit is coupled to the amplifier. The control circuit generates a second analog signal to the first input terminal of the amplifier according to a first analog signal. A slew rate of the second analog signal below the slew rate of the first analog signal and the amplifier controls the driving transistor to adjust a driving current flowing through the light-emitting component according to the second analog signal.