公开(公告)号：US20060138994A1

公开(公告)日：2006-06-29

申请号：US11027330

申请日：2004-12-29

Applicant: Kuang-Yao Cheng

Inventor： Kuang-Yao Cheng

IPC: H02P7/36

CPC classification number: H02M7/53875 ,  H02M2007/53876 ,  H02P21/34

Abstract: A motor driver has a plurality of output circuits each having an upper side switch and a lower side switch connected in series for supplying a current to a motor. The motor driver includes a current detection resistor connected in series with the plurality of output circuits in common for detecting a current supplied to the plurality of output circuits, a position detection circuit for outputting a position signal corresponding to a position of a rotor of the motor, a current command generation circuit for generating a target current command signal based on the position signal and a predetermined phase angle in which a phase angle of the target current command signal is determined by the predetermined phase angle, and a space vector modulation based logic control circuit for commanding a plurality of output circuits that are set in a plurality of switches states for control of an electric motor.

Abstract translation: 电机驱动器具有多个输出电路，每个输出电路具有串联连接的上侧开关和下侧开关，以向电动机提供电流。 马达驱动器包括与多个输出电路串联连接的电流检测电阻器，用于检测提供给多个输出电路的电流;位置检测电路，用于输出对应于马达的转子位置的位置信号 电流指令生成电路，用于根据所述位置信号产生目标电流指令信号，以及预定相位角，其中所述目标电流指令信号的相位角由所述预定相位角确定，并且基于空间矢量调制的逻辑控制 用于指令多个输出电路的电路，所述多个输出电路被设置为用于控制电动机的多个开关状态。

公开(公告)号：US07019473B2

公开(公告)日：2006-03-28

申请号：US10710074

申请日：2004-06-17

Applicant: Chih-Shih Yang ,  Kung-Ching Hung

Inventor： Chih-Shih Yang ,  Kung-Ching Hung

IPC: H02K23/04

CPC classification number: H02P6/10 ,  H02P2209/07

Abstract: A noiseless driving circuit for direct current (DC) motor is disclosed. The driving circuit uses a magnetic-field sensing circuit with a Hall sensor to sense the corresponding position of the permanent magnet rotor. According to the corresponding position of the permanent magnet rotor, a linear circuit generates a signal with trapezoid waveform for driving the coil of the DC motor. The coils of the DC motor perform soft switching operations without resulting backing electromotive force (BEMF). Therefore, the noise during the operation of the DC motor can be substantially reduced.

Abstract translation: 公开了一种用于直流（DC）电动机的无噪声驱动电路。 驱动电路使用具有霍尔传感器的磁场感测电路来感测永磁转子的相应位置。 根据永磁转子的相应位置，线性电路产生用于驱动直流电动机的线圈的梯形波形的信号。 直流电动机的线圈执行软开关操作，而不产生背衬电动势（BEMF）。 因此，可以显着降低直流电动机的运转时的噪音。

公开(公告)号：US20040002314A1

公开(公告)日：2004-01-01

申请号：US10418497

申请日：2003-04-18

Applicant: Prolific Technology, Inc.

Inventor： Tsung Hsien Tsai ,  Chia-Yin Yang

IPC: H04B001/06

CPC classification number: H04M1/72527 ,  H04M1/6505 ,  H04M1/72558

Abstract: An integrating apparatus is provided, which includes a power supply for providing a power to be the main power of the integrating apparatus, a controller connected electrically with the power supply so as to control the operation of the integrating apparatus, a storage device connected electrically with the controller for storing a data, and at least a transmitting interface connected with at least a 3C equipment so that the 3C equipment transmits the data through the transmitting interface.

Abstract translation: 提供一种积分装置，其包括用于提供作为积分装置的主电源的电力的电源，与电源电连接以控制积分装置的操作的控制器，与 用于存储数据的控制器，以及至少与至少3C设备连接的发送接口，使得3C设备通过发送接口发送数据。

公开(公告)号：US20220329079A1

公开(公告)日：2022-10-13

申请号：US17692187

申请日：2022-03-11

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Chia-Chang Hsu

IPC: H02J7/00 ,  G01R31/3835 ,  G01R31/396 ,  H01M10/44 ,  H01M10/42 ,  H01M10/48

Abstract: A device for achieving dynamic charging and balance of battery cells is disclosed. The device is configured for monitoring a plurality of battery voltages from a plurality of battery cells in a multi-cell battery pack. In case of a battery voltage difference between two of the battery cells being greater than a pre-determined voltage difference, the device generates a plurality of balance charging currents for charging the battery cells. In which, each of the balance charging currents is calculated based on remaining charge time, measured battery voltage, and rated battery capacity. Thus, in a charge cycle, one balance charging current for charging the battery cell with low battery voltage is designed to be greater than another one balance charging current for charging the battery cell with high battery voltage. Consequently, elimination of the battery voltage difference existing between any two of the battery cells is achieved.

公开(公告)号：US11321260B2

公开(公告)日：2022-05-03

申请号：US17152906

申请日：2021-01-20

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Tien-Wei Yu ,  Cheng-Sheng Chan ,  Chun-Shiu Chen

IPC: G06F13/38 ,  G06F8/65

Abstract: A USB hub device having functionality of self firmware updating is disclosed. The USB hub device is integrated in a host electronic system, and comprises an upstream port, a plurality of downstream ports and a hub module comprising a plurality of second USB controller units. On the other hand, the host electronic system has a second USB controller unit. After one electronic device is coupled to one downstream port, the first USB controller unit sends a detection signal for verifying whether the electronic device includes at least one firmware update data or not. In case of the electronic device being verified to have the firmware update data, the hub module transmit the firmware update data from the electronic device to a memory unit thereof, thereby completing a firmware update of the USB hub device.

公开(公告)号：US10908189B2

公开(公告)日：2021-02-02

申请号：US16200255

申请日：2018-11-26

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Chia-Chang Hsu

IPC: G01R19/00 ,  G01R15/20

Abstract: Disclosures of the present invention describe a current sensing device and method, wherein the current sensing device comprises: at least one magnetic sensor, a signal receiving unit and a microprocessor. Particularly, the present invention provides an environmental magnetic field filtering unit and an effective current calculation unit in the microprocessor, such that the microprocessor is able to calculate the value of a current flowing in a specific electrical cable with high accuracy based on a sensing magnetic field outputted from the magnetic sensor.

公开(公告)号：US10608426B2

公开(公告)日：2020-03-31

申请号：US15358110

申请日：2016-11-21

Applicant: Prolific Technology Inc.

Inventor： Wan-Yang Chen ,  Chih-Shih Yang ,  Jia-Jun Liu

IPC: H02H5/04 ,  H02H7/20 ,  H05K7/20 ,  G06F1/20

Abstract: High temperature protection system includes a thermal detection and control circuit, a pulse width modulation signal output circuit, a driving circuit, and a coil module. The thermal detection and control circuit is used for detecting a temperature and outputting at least one corresponding control signal. The pulse width modulation signal output circuit is coupled to the thermal detection and control circuit for generating a pulse width modulation signal according to the at least one control signal. The driving circuit is coupled to the pulse width modulation signal for generating at least one driving voltage. The coil module is coupled to the driving circuit and is operated according to the at least one driving voltage.

公开(公告)号：US20170207049A1

公开(公告)日：2017-07-20

申请号：US15344598

申请日：2016-11-07

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Chih-Chin Yang ,  Chia-Chang Hsu ,  Yun-Kuo Lee

IPC: H01H47/00 ,  G01R19/175 ,  G01R19/00

CPC classification number: H01H47/001 ,  H02H3/046 ,  H02H3/12 ,  H02H5/10

Abstract: A system for actively detecting an alternating current (AC) load includes a first power interface, a second power interface, a switch unit, and a control unit. The first power interface is coupled to an AC source to receive and provide an AC voltage. The second power interface is configured to be coupled to an electronic equipment to provide the AC source to the electronic equipment and provide a connection signal according to whether the electronic equipment is coupled to the second power interface. The switch unit is coupled between the first power interface and the second power interface and receives a switch signal to determine whether the AC voltage is transmitted to the second power interface. The control unit is coupled to the second power interface and the switch unit to provide the switch signal according to the connection signal.

公开(公告)号：US20170019595A1

公开(公告)日：2017-01-19

申请号：US15209742

申请日：2016-07-13

Applicant: PROLIFIC TECHNOLOGY INC.

Inventor： Guan-Yu CHEN ,  Hsin-Yueh CHANG ,  Heng-Chi HSU

IPC: H04N5/232 ,  G02B13/00 ,  G06T3/00 ,  G06T11/60 ,  G06T5/00

CPC classification number: H04N5/23238 ,  G02B13/0005 ,  G06T3/0018 ,  G06T11/60 ,  G06T2210/22 ,  H04N5/23245 ,  H04N5/23293

Abstract: An image processing device including an image obtaining circuit, a storage module and an image processing module is provided. The image obtaining circuit is for receiving a first fisheye image and a second fisheye image. The storage module is for storing a fisheye lens information. The image processing module is coupled to the image obtaining circuit and the storage module for generating a first converted image and a second converted image by converting the first and second fisheye images with panoramic coordinate conversion according to the fisheye lens information and stitching the first and second converted images to generate a panoramic image.

Abstract translation: 提供了包括图像获取电路，存储模块和图像处理模块的图像处理装置。 图像获取电路用于接收第一鱼眼图像和第二鱼眼图像。 存储模块用于存储鱼眼镜头信息。 图像处理模块耦合到图像获取电路和存储模块，用于通过根据鱼眼镜头信息转换具有全景坐标转换的第一和第二鱼眼图像来生成第一转换图像和第二转换图像，并且将第一和第二转换图像 转换图像以生成全景图像。

公开(公告)号：US09184746B2

公开(公告)日：2015-11-10

申请号：US13033219

申请日：2011-02-23

Applicant: Chih-Shih Yang

Inventor： Chih-Shih Yang

IPC: H01H9/00 ,  H03K17/95

CPC classification number: H03K17/9515

Abstract: A contactless switch provided by the present disclosure is coupled to a signal input device and receives a magnetic signal generated by a magnetic trigger mechanism. The contactless switch includes: a magnetic sensor, for sensing the magnetic signal and generating a corresponding trigger control signal; a controller, for generating a switch signal according to the trigger control signal; and a mode switch module, for processing the input signal to generate an output signal according to the switch signal.

Abstract translation: 由本公开提供的非接触开关耦合到信号输入装置，并接收由磁触发机构产生的磁信号。 非接触开关包括：磁传感器，用于感测磁信号并产生相应的触发控制信号; 控制器，用于根据所述触发控制信号产生开关信号; 以及模式切换模块，用于处理所述输入信号以根据所述开关信号产生输出信号。