Resonant converter and voltage stabilizing method thereof
    71.
    发明授权
    Resonant converter and voltage stabilizing method thereof 有权
    谐振转换器及其稳压方法

    公开(公告)号:US07692937B2

    公开(公告)日:2010-04-06

    申请号:US11748241

    申请日:2007-05-14

    CPC classification number: H02M3/33576 Y02B70/1433 Y02P80/112

    Abstract: A resonant converter and voltage stabilizing method thereof are provided. The resonant converter includes a converting stage circuit, a diode-rectifying stage circuit, a filter and load stage circuit, a logic circuit, a driving circuit, and an energy-recycling circuit. The method includes steps of recycling an energy from the filter and load stage circuit to the converting stage circuit when the resonant converter is light- or zero-loaded.

    Abstract translation: 提供了一种谐振变换器及其稳压方法。 谐振转换器包括转换级电路,二极管整流级电路,滤波器和负载级电路,逻辑电路,驱动电路和能量循环电路。 该方法包括以下步骤:当谐振转换器为轻负载或零负载时,将来自滤波器和负载级电路的能量再循环到转换级电路。

    Resonance converter and synchronous rectification driving method thereof
    72.
    发明授权
    Resonance converter and synchronous rectification driving method thereof 有权
    谐振变换器及其同步整流驱动方法

    公开(公告)号:US07599198B2

    公开(公告)日:2009-10-06

    申请号:US11780873

    申请日:2007-07-20

    CPC classification number: H02M3/3376 H02M3/33592 Y02B70/1475 Y02P80/112

    Abstract: A resonance converter and a synchronous rectification driving method thereof are provided. The resonance converter includes a switch circuit having at least two first switches, a resonance circuit having a resonance frequency, a transformer, and a full-wave rectification circuit having two second switches each of which has a drain and a source and generates a channel resistance voltage when a current flows through the drain and the source. The synchronous rectification driving method includes steps as follow. When an operating frequency of the resonance converter is less than the resonance frequency and the resonance converter is coupled to a heavy load, the channel resistance voltage is compared with a reference voltage for driving the second switches of the full-wave rectification circuit; and when the operating frequency of the resonance converter is not smaller than the resonance frequency, duplicated signals of signals used to drive the first switches are respectively used to drive the second switches of the full-wave rectification circuit.

    Abstract translation: 提供一种谐振变换器及其同步整流驱动方法。 谐振转换器包括具有至少两个第一开关的开关电路,具有谐振频率的谐振电路,变压器和具有两个第二开关的全波整流电路,每个开关具有漏极和源极,并产生沟道电阻 电流流过漏极和源极时的电压。 同步整流驱动方法包括以下步骤。 当谐振转换器的工作频率小于谐振频率并且谐振转换器耦合到重负载时,将沟道电阻电压与用于驱动全波整流电路的第二开关的参考电压进行比较; 并且当谐振转换器的工作频率不小于谐振频率时,用于驱动第一开关的信号的复制信号分别用于驱动全波整流电路的第二开关。

    UNINTERRUPTIBLE POWER SUPPLY MODULE
    73.
    发明申请
    UNINTERRUPTIBLE POWER SUPPLY MODULE 有权
    不间断电源模块

    公开(公告)号:US20090184583A1

    公开(公告)日:2009-07-23

    申请号:US12355243

    申请日:2009-01-16

    CPC classification number: H02J9/062 Y10T307/625

    Abstract: An uninterruptible power supply module is provided. The uninterruptible power supply module comprises an input terminal, a direct-current voltage source, a control module, a control arm-bridge module, an inductive element, a power source selection switch, and a switch element. The switch element is turned on before the power source selection switch is connected to the inductive element so that the direct-current voltage supplied by the direct-current voltage source is modulated by the control arm-bridge module to generate an output alternating current voltage to the load. And the switch element is turned off, i.e. not conducting electricity, after the power source selection switch is connected to the inductive element and the direct-current voltage source. Thereby, the use life of the power source selection switch element and the reliability of the uninterruptible power supply module are both increased.

    Abstract translation: 提供不间断电源模块。 不间断电源模块包括输入端子,直流电压源,控制模块,控制臂桥模块,电感元件,电源选择开关和开关元件。 开关元件在电源选择开关连接到电感元件之前被接通,使得由直流电压源提供的直流电压被控制臂桥模块调制以产生输出交流电压 负载。 并且在电源选择开关连接到电感元件和直流电压源之后,开关元件被关断,即不导电。 因此,电源选择开关元件的使用寿命和不间断电源模块的可靠性都增加。

    SENSORLESS CONTROL APPARATUS AND METHOD FOR INDUCTION MOTOR
    74.
    发明申请
    SENSORLESS CONTROL APPARATUS AND METHOD FOR INDUCTION MOTOR 有权
    传感器控制装置及其电感方法

    公开(公告)号:US20090160394A1

    公开(公告)日:2009-06-25

    申请号:US12128806

    申请日:2008-05-29

    CPC classification number: H02P21/14

    Abstract: A control apparatus for an induction motor is provided and includes a rotating-speed locked loop and a feed-forward magnetizing-axis angular position emulator. The rotating-speed locked loop emulates a speed control loop of the induction motor for producing an emulated torque current and an emulated rotor angular speed. The feed-forward magnetizing-axis angular position emulator receives the emulated torque current and the emulated rotor angular speed for producing a feed-forward estimated magnetizing-axis angular position, wherein according to the feed-forward estimated magnetizing-axis angular position, a first voltage controlling the induction motor is transformed from a synchronous reference coordinate system of the induction motor to a static reference coordinate system of the induction motor, and a two-phase current detected from the induction motor is transformed from the static reference coordinate system to the synchronous reference coordinate system. The state the stator angular frequency is at zero can be skipped through the apparatus.

    Abstract translation: 提供一种用于感应电动机的控制装置,包括旋转速度锁定环和前馈磁化轴角位置仿真器。 旋转速度锁定环模拟感应电动机的速度控制回路,用于产生仿真转矩电流和仿真转子角速度。 前馈磁化轴角位置仿真器接收仿真转矩电流和仿真转子角速度,用于产生前馈估计磁化轴角位置,其中根据前馈估计磁化轴角位置,第一 将感应电动机的电压控制从感应电动机的同步参考坐标系变换为感应电动机的静态参考坐标系,将从感应电动机检测到的两相电流从静态参考坐标系变换为同步 参考坐标系。 定子角频率为零的状态可以通过该装置跳过。

    THREE-LEVEL AC GENERATING CIRCUIT AND CONTROL METHOD THEREOF
    76.
    发明申请
    THREE-LEVEL AC GENERATING CIRCUIT AND CONTROL METHOD THEREOF 有权
    三电平交流发电电路及其控制方法

    公开(公告)号:US20080112200A1

    公开(公告)日:2008-05-15

    申请号:US11845877

    申请日:2007-08-28

    CPC classification number: H02M7/487

    Abstract: The present invention provides a three-level ac generating circuit and the control method thereof. The three-level ac generating circuit includes a three-level boosting circuit connected to an input source and including a positive boosting portion and a negative boosting portion; and a three-level inverting circuit connected to the three-level boosting circuit and including a positive inverting portion and a negative inverting portion, wherein while the input source is a relative low voltage, the relatively low voltage is boosted via the three-level boosting circuit, inverted and output via the three-level inverting circuit; while the input source is a relatively high voltage, the relatively high voltage is inverted and output via the three-level inverting circuit and wherein the output of the three-level ac generating circuit is power grid.

    Abstract translation: 本发明提供一种三电平交流发电电路及其控制方法。 三电平交流发生电路包括连接到输入源并包括正升压部分和负升压部分的三电平升压电路; 以及连接到三电平升压电路并包括正反转部分和负反转部分的三电平反相电路,其中当输入源是相对低电压时,经由三电平升压来升高相对低的电压 电路,反相和输出通过三电平反相电路; 而输入源为较高电压时,相对较高的电压经过三电平反相电路反相输出,其中三电平交流发电电路的输出为电网。

    RESONANCE CONVERTER AND SYNCHRONOUS RECTIFICATION DRIVING METHOD THEREOF
    77.
    发明申请
    RESONANCE CONVERTER AND SYNCHRONOUS RECTIFICATION DRIVING METHOD THEREOF 有权
    谐振转换器及其同步整流驱动方法

    公开(公告)号:US20080055942A1

    公开(公告)日:2008-03-06

    申请号:US11780873

    申请日:2007-07-20

    CPC classification number: H02M3/3376 H02M3/33592 Y02B70/1475 Y02P80/112

    Abstract: A resonance converter and a synchronous rectification driving method thereof are provided. The resonance converter includes a switch circuit having at least two first switches, a resonance circuit having a resonance frequency, a transformer, and a full-wave rectification circuit having two second switches each of which has a drain and a source and generates a channel resistance voltage when a current flows through the drain and the source. The synchronous rectification driving method includes steps as follow. When an operating frequency of the resonance converter is less than the resonance frequency and the resonance converter is coupled to a heavy load, the channel resistance voltage is compared with a reference voltage for driving the second switches of the full-wave rectification circuit; and when the operating frequency of the resonance converter is not smaller than the resonance frequency, duplicated signals of signals used to drive the first switches are respectively used to drive the second switches of the full-wave rectification circuit.

    Abstract translation: 提供一种谐振变换器及其同步整流驱动方法。 谐振转换器包括具有至少两个第一开关的开关电路,具有谐振频率的谐振电路,变压器和具有两个第二开关的全波整流电路,每个开关具有漏极和源极,并产生沟道电阻 电流流过漏极和源极时的电压。 同步整流驱动方法包括以下步骤。 当谐振转换器的工作频率小于谐振频率并且谐振转换器耦合到重负载时,将沟道电阻电压与用于驱动全波整流电路的第二开关的参考电压进行比较; 并且当谐振转换器的工作频率不小于谐振频率时,用于驱动第一开关的信号的复制信号分别用于驱动全波整流电路的第二开关。

    Parallel inverters and controlling method thereof

    公开(公告)号:US20080043501A1

    公开(公告)日:2008-02-21

    申请号:US11439324

    申请日:2006-05-23

    CPC classification number: H02M7/493

    Abstract: Parallel inverters without any communication buses and the controlling method thereof are provided. The parallel inverters are controlled by an instant voltage. Each inverter includes an output voltage waveform controller and a load-sharing controller. The output voltage waveform controller is connected to an output terminal of the inverter to control the waveform of an output voltage of the inverter. The load-sharing controller is connected to the output voltage waveform controller to control the load-sharing of the inverter and to make each inverter have the same phase, active power and reactive power without communications.

    METHOD AND CIRCUIT FOR TESTING MOTOR
    79.
    发明申请
    METHOD AND CIRCUIT FOR TESTING MOTOR 有权
    用于测试电机的方法和电路

    公开(公告)号:US20080018285A1

    公开(公告)日:2008-01-24

    申请号:US11755299

    申请日:2007-05-30

    CPC classification number: H02P23/14

    Abstract: A method for testing a motor having a rotor and a winding is provided. The method includes steps of (a) providing a power to rotate the rotor to a predetermined speed, (b) removing the power, (c) measuring a terminal voltage of the winding while a current within the winding is zero, (d) obtaining a back electromotive force in the winding by compensating the terminal voltage with a performance of the rotor, (e) selecting a characteristic of the back electromotive force and (f) determining a magnetization of the motor by comparing the characteristic with a predetermined parameter.

    Abstract translation: 提供一种用于测试具有转子和绕组的电动机的方法。 该方法包括以下步骤:(a)提供将转子旋转到预定速度的功率,(b)去除功率,(c)在绕组内的电流为零时测量绕组的端电压,(d)获得 通过用转子的性能补偿端子电压,绕组中的反电动势,(e)选择反电动势的特性,以及(f)通过将特性与预定参数进行比较来确定电动机的磁化。

    Electronic ballast and controlling method thereof
    80.
    发明授权
    Electronic ballast and controlling method thereof 有权
    电子镇流器及其控制方法

    公开(公告)号:US07176639B2

    公开(公告)日:2007-02-13

    申请号:US10862446

    申请日:2004-06-08

    CPC classification number: H05B41/295

    Abstract: An improved electronic ballast for providing an electrical energy to a fluorescent lamp circuit is provided. It includes a pre-heating inductor; a first resonant circuit connected to the pre-heating inductor in parallel and coupled to the fluorescent lamp circuit for pre-heating the fluorescent lamp circuit according to a first resonant frequency; a second resonant circuit coupled to the fluorescent lamp circuit for igniting the fluorescent lamp circuit according to a second resonant frequency; and a driving circuit coupled to the second resonant circuit for continuously providing the electrical energy to the first resonant circuit and the second resonant circuit respectively according to the first resonant frequency and the second resonant frequency.

    Abstract translation: 提供了一种用于向荧光灯电路提供电能的改进的电子镇流器。 它包括一个预热电感器; 第一谐振电路并联连接到预热电感器并耦合到荧光灯电路,用于根据第一谐振频率对荧光灯电路进行预热; 耦合到荧光灯电路的第二谐振电路,用于根据第二共振频率点燃荧光灯电路; 以及耦合到所述第二谐振电路的驱动电路,用于根据所述第一谐振频率和所述第二谐振频率分别连续地向所述第一谐振电路和所述第二谐振电路提供电能。

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