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    Series resonant circuit and voltage stabilizing method thereof
    51.
    发明授权
    Series resonant circuit and voltage stabilizing method thereof 有权
    串联谐振电路及其稳压方法

    公开(公告)号：US07429853B2

    公开(公告)日：2008-09-30

    申请号：US11358651

    申请日：2006-02-21

    Applicant: Qing-You Zhang ,  Guo-Dong Yin ,  Zhi-Ying Chen ,  Jun-Feng Guan ,  Jian-Ping Ying

    Inventor： Qing-You Zhang ,  Guo-Dong Yin ,  Zhi-Ying Chen ,  Jun-Feng Guan ,  Jian-Ping Ying

    IPC: G05F3/04 ,  H01F17/00

    CPC classification number: H02M3/3376 ,  H02M1/32 ,  H02M3/285 ,  H02M2001/0032 ,  Y02B70/1433 ,  Y02B70/16

    Abstract: A series resonant circuit device and a voltage stabilizing method thereof are provided. The series resonant circuit device includes a resonant circuit having at least a resonant capacitor and a resonant inductor, an equivalent capacitor electrically coupled to the resonant circuit, a magnetizing inductor electrically connected to the equivalent capacitor in parallel, a transformer having a primary winding electrically connected to the magnetizing inductor in parallel, and a current impulse circuit electrically coupled to the resonant circuit and synchronized with an input voltage of the series resonant circuit device. The voltage stabilizing method is to provide a current impulse to the equivalent capacitor so as to decrease a current difference between the resonant inductor and the magnetizing inductor when the input voltage varies.

    Abstract translation: 提供串联谐振电路装置及其电压稳定方法。 所述串联谐振电路装置包括至少具有谐振电容器和谐振电感器的谐振电路，电耦合到所述谐振电路的等效电容器，与所述等效电容器并联电连接的励磁电感器，所述变压器具有初级绕组电连接 并联到励磁电感器，以及电流脉冲电路，其电耦合到谐振电路并与串联谐振电路器件的输入电压同步。 电压稳定方法是向等效电容器提供电流脉冲，以便当输入电压变化时减小谐振电感器和磁化电感器之间的电流差。

    METHOD OF CONTROLLING AN UNINTERRUPTIBLE POWER SUPPLY APPARATUS
    53.
    发明申请
    METHOD OF CONTROLLING AN UNINTERRUPTIBLE POWER SUPPLY APPARATUS 审中-公开
    控制不间断电源设备的方法

    公开(公告)号：US20080012426A1

    公开(公告)日：2008-01-17

    申请号：US11774277

    申请日：2007-07-06

    Applicant: Yan-Song Lu ,  Jing-Tao Tan ,  Jian-Ping Yang ,  Jian-Ping Ying

    Inventor： Yan-Song Lu ,  Jing-Tao Tan ,  Jian-Ping Yang ,  Jian-Ping Ying

    IPC: H02J9/00 ,  H02M7/5387

    CPC classification number: H02J9/062 ,  Y10T307/615 ,  Y10T307/62

    Abstract: A method of controlling an uninterruptible power supply apparatus (UPS) is provided. The UPS apparatus includes at least an AC input voltage, a DC input voltage and a single-phase AC/AC converter. The single-phase AC/AC converter includes an AC inductor, a bus capacitor, a boost arm, a common arm and a buck arm. The method includes steps of: controlling the bus voltage to have a DC component and full-wave rectifying component, and setting a bus voltage parameter K so that the bus voltage approaches to a full-wave rectifying voltage when K approaches to 1, wherein 0≦K≦1.

    Abstract translation: 提供一种控制不间断电源装置（UPS）的方法。 UPS装置至少包括AC输入电压，DC输入电压和单相AC / AC转换器。 单相AC / AC转换器包括交流电感器，总线电容器，升压臂，公共臂和降压臂。 该方法包括以下步骤：控制总线电压以具有DC分量和全波整流分量，并设置总线电压参数K，使得当K接近1时，总线电压接近全波整流电压，其中0 <= K <= 1。

    Converter with synchronous rectifier with ZVS
    55.
    发明授权
    Converter with synchronous rectifier with ZVS 有权
    带ZVS同步整流器的变换器

    公开(公告)号：US07099161B2

    公开(公告)日：2006-08-29

    申请号：US10858243

    申请日：2004-06-01

    Applicant: Chao Yan ,  Hao-Yi Ye ,  Hong-Yang Wu ,  Jian-Hong Zeng ,  Jian-Ping Ying

    Inventor： Chao Yan ,  Hao-Yi Ye ,  Hong-Yang Wu ,  Jian-Hong Zeng ,  Jian-Ping Ying

    IPC: H02H3/335

    CPC classification number: H02M3/33592 ,  Y02B70/1475

    Abstract: A control method for a first synchronous rectifier and a second synchronous rectifier in a switching power converter is presented. The switching power converter includes a transformer, and a first switching device and a second switching device connected in series and in parallel with an input voltage source. The first synchronous rectifier is connected with a low end of a secondary winding of the transformer. The second synchronous rectifier is connected with a high end of the secondary winding of said transformer. The first switching device is connected with a high end of the input voltage source, and the second switching device is connected with a low end of the input voltage source. The control includes the steps of driving the first switching device to an on state and the second switching device to an off state; and driving the second synchronous rectifier to an off state after the second switching device has been driven to an on state, such that a power is delivered from the primary winding to the secondary winding.

    Abstract translation: 提出了一种开关电源转换器中的第一同步整流器和第二同步整流器的控制方法。 开关电源转换器包括变压器以及与输入电压源串联并联连接的第一开关器件和第二开关器件。 第一同步整流器与变压器次级绕组的低端连接。 第二同步整流器与所述变压器的次级绕组的高端连接。 第一开关装置与输入电压源的高端连接，第二开关装置与输入电压源的低端连接。 该控制包括以下步骤：将第一开关装置驱动为导通状态，将第二开关装置切换到断开状态; 并且在所述第二开关装置被驱动到接通状态之后将所述第二同步整流器驱动到截止状态，使得从所述初级绕组向次级绕组输送功率。

    Control method and circuit for synchronous rectifiers used in ZVS DC/DC converter
    56.
    发明申请
    Control method and circuit for synchronous rectifiers used in ZVS DC/DC converter 有权
    用于ZVS DC / DC转换器的同步整流器的控制方法和电路

    公开(公告)号：US20050265056A1

    公开(公告)日：2005-12-01

    申请号：US10858243

    申请日：2004-06-01

    Applicant: Chao Yan ,  Hao-Yi Ye ,  Hong-Yang Wu ,  Jian-Hong Zeng ,  Jian-Ping Ying

    Inventor： Chao Yan ,  Hao-Yi Ye ,  Hong-Yang Wu ,  Jian-Hong Zeng ,  Jian-Ping Ying

    IPC: H02M3/335

    CPC classification number: H02M3/33592 ,  Y02B70/1475

    Abstract: A control method for a first synchronous rectifier and a second synchronous rectifier in a switching power converter is presented. The switching power converter includes a transformer, and a first switching device and a second switching device connected in series and in parallel with an input voltage source. The first synchronous rectifier is connected with a low end of a secondary winding of the transformer. The second synchronous rectifier is connected with a high end of the secondary winding of said transformer. The first switching device is connected with a high end of the input voltage source, and the second switching device is connected with a low end of the input voltage source. The control includes the steps of driving the first switching device to an on state and the second switching device to an off state; and driving the second synchronous rectifier to an off state after the second switching device has been driven to an on state, such that a power is delivered from the primary winding to the secondary winding.

    Abstract translation: 提出了一种开关电源转换器中的第一同步整流器和第二同步整流器的控制方法。 开关电源转换器包括变压器以及与输入电压源串联并联连接的第一开关器件和第二开关器件。 第一同步整流器与变压器次级绕组的低端连接。 第二同步整流器与所述变压器的次级绕组的高端连接。 第一开关装置与输入电压源的高端连接，第二开关装置与输入电压源的低端连接。 该控制包括以下步骤：将第一开关装置驱动为导通状态，将第二开关装置切换到断开状态; 并且在所述第二开关装置被驱动到接通状态之后将所述第二同步整流器驱动到截止状态，使得从所述初级绕组向次级绕组输送功率。

    Multi-phase switching power conversion circuit
    57.
    发明授权
    Multi-phase switching power conversion circuit 有权
    多相开关电源转换电路

    公开(公告)号：US09148064B2

    公开(公告)日：2015-09-29

    申请号：US12831828

    申请日：2010-07-07

    Applicant: Teng Liu ,  Ziying Zhou ,  Jian-Ping Ying

    Inventor： Teng Liu ,  Ziying Zhou ,  Jian-Ping Ying

    IPC: H02M3/335 ,  H02M3/158

    CPC classification number: H02M3/33561 ,  H02M2003/1586 ,  Y02B70/1425 ,  Y02B70/1433

    Abstract: A multi-phase switching power conversion circuit has at least three phases and includes a plurality of switching circuits, a plurality of transformers, a plurality of output rectifier circuits, a resonant network and a control circuit. The resonant network includes a plurality of symmetrical terminals and a plurality of phase branches, which are connected in a multi-phase symmetrical relationship. Each of the symmetrical terminals is connected to the output side of respective switching circuits. The phase branches are connected to a resonant common terminal such that the phase branches are in a star connection. The resonant common terminal is different from the positive terminal and the first reference terminal of the input voltage source. The control circuit is connected to an output terminal of the multi-phase switching power conversion circuit and a plurality of the control terminals of the plurality of switching circuits. The switching circuits are conducted or shut off according to the output voltage under control of the control circuit, so that the electrical energy of the input voltage source is selectively transmitted to the resonant network.

    Abstract translation: 多相开关电源转换电路具有至少三相，并且包括多个开关电路，多个变压器，多个输出整流电路，谐振网络和控制电路。 谐振网络包括以多相对称关系连接的多个对称端子和多个相位分支。 每个对称端子连接到各个开关电路的输出侧。 相分支连接到谐振公共端子，使得相分支处于星形连接。 谐振公共端与输入电压源的正端和第一参考端不同。 控制电路连接到多相开关电力转换电路的输出端子和多个开关电路的多个控制端子。 开关电路根据控制电路控制下的输出电压进行导通或切断，使得输入电压源的电能选择性地传输到谐振网络。

    Power factor correction circuit
    59.
    发明授权
    Power factor correction circuit 有权
    功率因数校正电路

    公开(公告)号：US09001537B2

    公开(公告)日：2015-04-07

    申请号：US13523615

    申请日：2012-06-14

    Applicant: Hong-Yuan Jin ,  Yan Chen ,  Hong-Jian Gan ,  Jian-Ping Ying

    Inventor： Hong-Yuan Jin ,  Yan Chen ,  Hong-Jian Gan ,  Jian-Ping Ying

    IPC: H02H7/125 ,  H02M1/42 ,  H02M1/00 ,  H02M7/219

    CPC classification number: H02M1/4233 ,  H02M2001/0048 ,  H02M2007/2195 ,  Y02B70/126 ,  Y02B70/1408 ,  Y02B70/1491

    Abstract: A power factor correction (PFC) circuit includes an AC power, a first bridge arm and a second bridge arm. The first bridge arm includes first and second switches connected in series with each other. A second terminal of the first switch is connected to a first terminal of the second switch, and coupled to a first end of the AC power via a first inductor. The second bridge arm includes third and fourth switches connected in series with each other. A second terminal of the third switch is connected to a first terminal of the fourth switch and a second end of the AC power. The third and fourth switches operate in ON/OFF states by use of a control signal having an operation frequency consistent with that of the AC power. The on-state resistance of the third and fourth switches is lower than that of the first or second switch.

    Abstract translation: 功率因数校正（PFC）电路包括AC电力，第一桥臂和第二桥臂。 第一桥臂包括彼此串联连接的第一和第二开关。 第一开关的第二端子连接到第二开关的第一端子，并且经由第一电感器耦合到AC电力的第一端。 第二桥臂包括彼此串联连接的第三和第四开关。 第三开关的第二端子连接到第四开关的第一端子和交流电源的第二端。 第三和第四开关通过使用具有与AC电力的操作频率一致的操作频率的控制信号来操作ON / OFF状态。 第三和第四开关的导通电阻低于第一或第二开关的导通电阻。

    Voltage regulation circuit and light emitting didoe driving apparatus having the same
    60.
    发明授权
    Voltage regulation circuit and light emitting didoe driving apparatus having the same 有权
    电压调节电路和具有该电压调节电路的发光飞镖驱动装置

    公开(公告)号：US08917035B2

    公开(公告)日：2014-12-23

    申请号：US13541680

    申请日：2012-07-04

    Applicant: Wei-Qiang Zhang ,  Yan Zhong ,  Jian-Ping Ying

    Inventor： Wei-Qiang Zhang ,  Yan Zhong ,  Jian-Ping Ying

    IPC: G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36

    CPC classification number: H05B37/02 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0827 ,  Y02B20/345 ,  Y02B20/347

    Abstract: A voltage regulation circuit includes a voltage conversion module, an LED driving module and a control module. The voltage conversion module is operable to receive and convert the first voltage to a second voltage. Each LED driving loop of the LED driving module has a current regulator and an LED string. The control module is operable to output a control signal according to the received input signal which reflects the current flowing through the LED driving module. The voltage conversion module regulates the second voltage according to the control signal, such that the regulated second voltage still keeps the brightness of the LED string of each LED driving loop unchanged.

    Abstract translation: 电压调节电路包括电压转换模块，LED驱动模块和控制模块。 电压转换模块可操作以接收第一电压并将其转换为第二电压。 LED驱动模块的每个LED驱动环路具有电流调节器和LED串。 控制模块可操作以根据接收到的反映流过LED驱动模块的电流的输入信号输出控制信号。 电压转换模块根据控制信号调节第二电压，使得调节的第二电压仍保持每个LED驱动环路的LED串的亮度不变。

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