THREE-LEVEL AC GENERATING CIRCUIT AND CONTROL METHOD THEREOF
    51.
    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
    52.
    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
    54.
    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
    55.
    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。

    Converting device with power factor correcting and DC/DC converting functions
    56.
    发明申请
    Converting device with power factor correcting and DC/DC converting functions 有权
    具有功率因数校正和DC / DC转换功能的转换器件

    公开(公告)号:US20060214513A1

    公开(公告)日:2006-09-28

    申请号:US11385066

    申请日:2006-03-21

    Abstract: A converting device with PFC and dc/dc converting functions is provided. The converting device includes a power source providing a dc voltage, an inverter having an input terminal electrically connected to the power source and an output terminal, a transformer having a primary winding electrically connected to the output terminal of the inverter and a secondary winding, a rectifier/filter circuit having an input terminal electrically connected to the secondary winding of the transformer and an output terminal, and a PFC converter coupled to the output terminal of the rectifier/filter circuit and having an input terminal receiving an ac input voltage. The converting device converts the ac input voltage into an ac output voltage when the ac input voltage is normal, and converts the dc voltage to output the ac output voltage with the cooperation of the inverter, the transformer, the rectifier/filter circuit and the PFC converter when the ac input voltage is abnormal.

    Abstract translation: 提供具有PFC和DC / DC转换功能的转换器件。 转换装置包括提供直流电压的电源,具有与电源电连接的输入端子的反相器和输出端子,具有与逆变器的输出端子电连接的初级绕组的变压器和次级绕组, 整流器/滤波器电路具有电连接到变压器的次级绕组的输入端子和输出端子,以及耦合到整流器/滤波器电路的输出端子并具有接收ac输入电压的输入端子的PFC转换器。 转换装置在交流输入电压正常时将交流输入电压转换成交流输出电压,并通过逆变器,变压器,整流/滤波电路和PFC的协调,将直流电压转换为输出交流输出电压 转换器交流输入电压异常时。

    Electronic ballast and controlling method thereof
    57.
    发明申请
    Electronic ballast and controlling method thereof 有权
    电子镇流器及其控制方法

    公开(公告)号:US20050179403A1

    公开(公告)日:2005-08-18

    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。

    Converter
    58.
    发明授权
    Converter 有权
    转换器

    公开(公告)号:US09484145B2

    公开(公告)日:2016-11-01

    申请号:US13555722

    申请日:2012-07-23

    Abstract: A converter includes a transformer module, a primary side circuit module, and a secondary side circuit module. The transformer module includes a magnetic core group and a winding. The winding includes a primary winding and a secondary winding, and is further installed on the magnetic core group. The primary side circuit module is coupled to the primary winding. The secondary side circuit module is coupled to the secondary winding. The primary side circuit modules or the secondary side circuit module has overlapping vertical projection area on a first plane with the winding, and the first plane is a plane in a horizontal direction of the winding.

    Abstract translation: A转换器包括变压器模块,初级侧电路模块和次级侧电路模块。 变压器模块包括磁芯组和绕组。 绕组包括初级绕组和次级绕组,并进一步安装在磁芯组上。 初级侧电路模块耦合到初级绕组。 次级侧电路模块耦合到次级绕组。 初级侧电路模块或次级侧电路模块在与绕组的第一平面上具有重叠的垂直投影区域,并且第一平面是绕组的水平方向的平面。

    Transformer capable of suppressing common mode current and power converter thereof
    59.
    发明授权
    Transformer capable of suppressing common mode current and power converter thereof 有权
    能够抑制共模电流和功率转换器的变压器

    公开(公告)号:US09129736B2

    公开(公告)日:2015-09-08

    申请号:US13478834

    申请日:2012-05-23

    Abstract: A transformer capable of suppressing common mode current and a power converter thereof are provided. The transformer comprises a primary winding, a secondary winding, a magnet core and a shielding winding layer. The shielding winding layer has a first shielding winding and a second shielding winding. A voltage jump direction of the first shielding winding is constantly opposite to that of the second shielding winding. The shielding winding layer is coupled to a static terminal coupled with the primary winding or the secondary winding.

    Abstract translation: 提供一种能够抑制共模电流的变压器及其功率转换器。 变压器包括初级绕组,次级绕组,磁芯和屏蔽绕组层。 屏蔽绕组层具有第一屏蔽绕组和第二屏蔽绕组。 第一屏蔽绕组的电压跳跃方向与第二屏蔽绕组的电压跳跃方向恒定相反。 屏蔽绕组层耦合到与初级绕组或次级绕组耦合的静态端子。

    DC/DC converter, power converter and control method thereof
    60.
    发明授权
    DC/DC converter, power converter and control method thereof 有权
    DC / DC转换器,功率转换器及其控制方法

    公开(公告)号:US08923019B2

    公开(公告)日:2014-12-30

    申请号:US13427386

    申请日:2012-03-22

    Abstract: A DC/DC converter, a power converter and a control method thereof are disclosed, wherein the DC/DC converter includes an output circuit, a rectangular wave generator, a resonant tank, a detection unit and a control unit. The output circuit has a load. The rectangular wave generator converts an input voltage into driving pulses. The resonant tank provides a first voltage based on the driving pulses for the output circuit. The detection unit detects a signal related to a state of the load. When the state of the load is a light-load or a no-load, the control unit controls the rectangular wave generator in a hiccup mode to reduce a ratio of a work period to a stop period, or makes that number of the driving pulses within the current work period is less than the number of the driving pulses when a duty ratio is 50%.

    Abstract translation: 公开了一种DC / DC转换器,电力转换器及其控制方法,其中DC / DC转换器包括输出电路,矩形波发生器,谐振回路,检测单元和控制单元。 输出电路有负载。 矩形波发生器将输入电压转换为驱动脉冲。 谐振槽基于用于输出电路的驱动脉冲提供第一电压。 检测单元检测与负载状态有关的信号。 当负载状态为轻负载或无负载时,控制单元以打嗝模式控制矩形波发生器,以减少工作周期与停止时间的比率,或者使该数量的驱动脉冲 在占空比为50%的情况下,在当前工作周期内小于驱动脉冲的数量。

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