公开(公告)号：US08729818B2

公开(公告)日：2014-05-20

申请号：US13241233

申请日：2011-09-23

申请人： Wei-Qiang Zhang ,  Li-Zhi Xu ,  Jian-Ping Ying

发明人： Wei-Qiang Zhang ,  Li-Zhi Xu ,  Jian-Ping Ying

IPC分类号： H05B41/16

CPC分类号： H05B33/0815 ,  H02M3/33561 ,  Y02B70/1433

摘要： The invention discloses a driving circuit structure for driving light-emitting loads. The driving circuit structure may include a power supplying device, a signal processing device and an impedance balancing device and a dimming control unit. The power supplying device is used for supplying an alternating current power supply. The signal processing device is used for converting the alternating current power supply into a direct current power supply, so as to drive the light-emitting loads. The impedance balancing device is used for balancing an alternating current magnitude of the alternating current power supply, so as to stabilize a direct current magnitude of the direct current power supply for driving the light-emitting loads. The dimming control unit is capable of controlling output luminance of the light-emitting loads.

摘要翻译： 本发明公开了一种用于驱动发光负载的驱动电路结构。 驱动电路结构可以包括供电装置，信号处理装置和阻抗平衡装置以及调光控制装置。 供电装置用于提供交流电源。 信号处理装置用于将交流电源转换为直流电源，以驱动发光负载。 阻抗平衡装置用于平衡交流电源的交流电流大小，以便稳定用于驱动发光负载的直流电源的直流电流幅值。 调光控制单元能够控制发光负载的输出亮度。

公开(公告)号：US08593245B2

公开(公告)日：2013-11-26

申请号：US12787893

申请日：2010-05-26

申请人： Jian-Hong Zeng ,  Shou-Yu Hong ,  Nan Ye ,  Wei Yang ,  Jian-Ping Ying

发明人： Jian-Hong Zeng ,  Shou-Yu Hong ,  Nan Ye ,  Wei Yang ,  Jian-Ping Ying

IPC分类号： H01F38/30 ,  H01F27/36 ,  H01F27/32 ,  H01F5/00 ,  H01F27/28

CPC分类号： H01F27/2885

摘要： A coil assembly includes at least one insulated wire and an electromagnetic interference shielding layer. The insulated wire is wound into a winding coil part. The winding coil part includes a first wire-outlet segment, a second wire-outlet segment and a central through-hole. The electromagnetic interference shielding layer is formed on the winding coil part for shielding the insulated wire. The electromagnetic interference shielding layer has lateral projection profile on the winding coil part. The electromagnetic interference shielding layer has a radial gap such that the electromagnetic interference shielding layer is a non-conducting loop.

摘要翻译： 线圈组件包括至少一个绝缘线和电磁干扰屏蔽层。 绝缘线缠绕在绕组线圈部分。 绕组线圈部分包括第一线出口段，第二线出口段和中心通孔。 电磁干扰屏蔽层形成在用于屏蔽绝缘线的绕组线圈部分上。 电磁干扰屏蔽层在绕组线圈部分具有侧向突出轮廓。 电磁干扰屏蔽层具有径向间隙，使得电磁干扰屏蔽层是非导通环路。

公开(公告)号：US20130257390A1

公开(公告)日：2013-10-03

申请号：US13523615

申请日：2012-06-14

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

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

IPC分类号： G05F1/70

CPC分类号： H02M1/4233 ,  H02M2001/0048 ,  H02M2007/2195 ,  Y02B70/126 ,  Y02B70/1408 ,  Y02B70/1491

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20130100716A1

公开(公告)日：2013-04-25

申请号：US13415480

申请日：2012-03-08

申请人： Ai-Xing Tong ,  Yu-Ming Chang ,  Hong-Jian GAN ,  Shao-Cai Ma ,  Jian-Ping Ying

发明人： Ai-Xing Tong ,  Yu-Ming Chang ,  Hong-Jian GAN ,  Shao-Cai Ma ,  Jian-Ping Ying

IPC分类号： H02M5/458

CPC分类号： H02M1/32 ,  H02M5/458 ,  H02M7/003 ,  H02M2001/325 ,  H05K7/20936

摘要： The present invention provides a high-power medium-voltage drive power cell, which comprises: a rectifier module for rectifying the three-phase AC input voltage to get a DC voltage; an IGBT (Insulated Gate Bipolar Transistor) inverter bridge connected to capacitors for converting the DC voltage into an AC voltage of which the frequency, the amplitude and the phase are adjustable; a bypass module connected to the IGBT inverter bridge for providing the bypass function when the IGBT inverter bridge works in an abnormal state; and a heat pipe heat sink having a base plate on both sides of which power elements of the high-power medium-voltage drive power cell are disposed.

摘要翻译： 本发明提供了一种大功率中压驱动电池，其特征在于，具有整流模块，用于对三相交流输入电压进行整流，得到直流电压; 连接到电容器的IGBT（绝缘栅双极晶体管）逆变桥，用于将DC电压转换成频率，幅度和相位可调的AC电压; 连接到IGBT逆变桥的旁路模块，用于在IGBT逆变桥工作在异常状态时提供旁路功能; 以及设置有大功率中压驱动电力单元的功率元件的两侧具有基板的热管散热器。

公开(公告)号：US20130049707A1

公开(公告)日：2013-02-28

申请号：US13532356

申请日：2012-06-25

申请人： Chang-Yong Wang ,  Jian-Fei Zheng ,  Fei Lu ,  Jian-Ping Ying

发明人： Chang-Yong Wang ,  Jian-Fei Zheng ,  Fei Lu ,  Jian-Ping Ying

IPC分类号： H02P9/10

CPC分类号： H02P6/00

摘要： A DC chopper comprising a control unit and a power circuit and a DC chopping method for a DFIG (doubly fed induction generator) system are provided. The input terminal of the control unit is coupled to a DC capacitor of a converter to detect a DC voltage. The power circuit includes input terminals, an overvoltage protection module, a rectifier module and output terminals. The overvoltage protection module comprises at least one discharge unit formed from a discharge resistor and a switch element, and the rectifier module is coupled in parallel to the overvoltage protection module. When a grid voltage drops, the control unit outputs a corresponding control signal to drive the switch element to be ON or OFF, and the output terminal of the power circuit absorbs a portion of rotor inrush current, so as to impose over-current protection.

摘要翻译： 提供了包括控制单元和电源电路以及用于DFIG（双馈感应发电机）系统的直流斩波方法的直流斩波器。 控制单元的输入端耦合到转换器的直流电容器，以检测直流电压。 电源电路包括输入端子，过压保护模块，整流模块和输出端子。 过电压保护模块包括由放电电阻器和开关元件形成的至少一个放电单元，并且整流器模块并联耦合到过电压保护模块。 当电网电压下降时，控制单元输出相应的控制信号以驱动开关元件导通或关断，并且电源电路的输出端吸收一部分转子浪涌电流，从而施加过电流保护。

公开(公告)号：US20130038231A1

公开(公告)日：2013-02-14

申请号：US13249272

申请日：2011-09-30

申请人： Qi ZHANG ,  Wei-Qiang ZHANG ,  Jian-Ping YING

发明人： Qi ZHANG ,  Wei-Qiang ZHANG ,  Jian-Ping YING

IPC分类号： H05B41/36

CPC分类号： H05B41/288

摘要： A method and a device for controlling a discharge Lamp, and a discharge lamp system are disclosed herein. The method includes the operations of: when the lamp current changes, determining a percentage of change of the lamp current according to a synchronous signal and obtaining a second lamp current after a discharge lamp current changes according to the percentage of change of the lamp current and a first lamp current; obtaining a modulating signal according to a current difference between the first lamp current and the second lamp current; and generating a pulse voltage signal according to the modulating signal. The pulse voltage signal transits from a first voltage to a second voltage during the time period when the lamp current is transited from a first lamp current to a second lamp current during a transition time.

摘要翻译： 本文公开了一种用于控制放电灯的方法和装置以及放电灯系统。 该方法包括以下操作：当灯电流变化时，根据同步信号确定灯电流的变化百分比，并且在放电灯电流根据灯电流的变化百分比变化后获得第二灯电流，并且 第一灯电流; 根据第一灯电流和第二灯电流之间的电流差获得调制信号; 并根据调制信号产生脉冲电压信号。 在灯电流在转换期间从第一灯电流转换到第二灯电流的时间段期间，脉冲电压信号从第一电压转换到第二电压。

公开(公告)号：US20130026952A1

公开(公告)日：2013-01-31

申请号：US13241220

申请日：2011-09-23

申请人： Wei-Qiang ZHANG ,  Jian-Ping YING

发明人： Wei-Qiang ZHANG ,  Jian-Ping YING

IPC分类号： H05B37/02

CPC分类号： H05B41/2828 ,  H05B41/391

摘要： An electronic ballast includes an inverter circuit, a variable inductor unit and a control circuit. The variable inductor unit is electrically coupled between the inverter circuit and an illumination device. The control circuit controls the variable inductor unit according to an operation mode of the inverter circuit such that an equivalent inductance of the variable inductor unit has a variation fed back to the inverter circuit, to further change the operation mode of the inverter circuit. An illumination apparatus and a method for protecting the electronic ballast are also disclosed.

摘要翻译： 电子镇流器包括逆变器电路，可变电感器单元和控制电路。 可变电感器单元电耦合在逆变器电路和照明装置之间。 控制电路根据逆变器电路的运行模式控制可变电感器单元，使得可变电感器单元的等效电感具有反馈到逆变器电路的变化，以进一步改变逆变器电路的操作模式。 还公开了一种用于保护电子镇流器的照明装置和方法。

公开(公告)号：US20120294053A1

公开(公告)日：2012-11-22

申请号：US13241250

申请日：2011-09-23

申请人： Chao Yan ,  Yi-Qing YE ,  Chong-Feng ZHENG ,  Jian-Ping YING

发明人： Chao Yan ,  Yi-Qing YE ,  Chong-Feng ZHENG ,  Jian-Ping YING

IPC分类号： H02H7/125

CPC分类号： H02M1/32 ,  H02M1/4208 ,  H02M2007/2195 ,  Y02B70/126 ,  Y02B70/1408

摘要： A method for protecting a converter device comprises the steps of: detecting an alternating current signal; when the alternating current signal is abnormal, generating an activating signal according to the abnormal alternating current signal; generating a control signal according to the activating signal; and controlling at least one synchronous rectifying power switch of the converter device according to the control signal. Furthermore, a converter device which implements the method is provided.

摘要翻译： 一种用于保护转换器装置的方法包括以下步骤：检测交流信号; 当交流信号异常时，根据异常交流信号产生启动信号; 根据激活信号产生控制信号; 以及根据所述控制信号来控制所述转换器装置的至少一个同步整流电源开关。 此外，提供了实现该方法的转换器装置。

公开(公告)号：US20120250356A1

公开(公告)日：2012-10-04

申请号：US13427386

申请日：2012-03-22

申请人： Pei-Qing Hu ,  Hong-Yuan Jin ,  Hong-Jian Gan ,  Jian-Ping Ying

发明人： Pei-Qing Hu ,  Hong-Yuan Jin ,  Hong-Jian Gan ,  Jian-Ping Ying

IPC分类号： H02M3/335

CPC分类号： H02M3/33569 ,  H02M2001/0035 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02B70/16

摘要： 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%.

摘要翻译： 公开了一种DC / DC转换器，功率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，谐振槽，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。

公开(公告)号：US07944089B2

公开(公告)日：2011-05-17

申请号：US12355243

申请日：2009-01-16

申请人： Yan-Song Lu ,  Fei Lv ,  Jing-Tao Tan ,  Jian-Ping Ying

发明人： Yan-Song Lu ,  Fei Lv ,  Jing-Tao Tan ,  Jian-Ping Ying

IPC分类号： H02J1/00

CPC分类号： H02J9/062 ,  Y10T307/625

摘要： 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.

摘要翻译： 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。