公开(公告)号：US09370067B2

公开(公告)日：2016-06-14

申请号：US14350566

申请日：2012-08-27

申请人： Luca Bordin ,  Yuli Chen ,  Wuqiang Liao ,  Wei Tan

发明人： Luca Bordin ,  Yuli Chen ,  Wuqiang Liao ,  Wei Tan

IPC分类号： H05B33/08

CPC分类号： H05B33/0827 ,  H05B33/0815 ,  H05B33/0818 ,  H05B33/083 ,  H05B33/0848

摘要： An LED control circuit for controlling an LED illuminating device is disclosed. The LED illuminating device includes at least serially connected load group, and the LED control circuit includes: a conversion module configured to convert an input voltage to an output voltage, and to output a working current as a sample current; a reference voltage generating module configured to generate a reference voltage; a control module configured to compare a sample voltage corresponding to the sample current with the reference voltage, and to output a control signal to the conversion module according to a comparison result; and a load short circuit module including a plurality of switches each connected in parallel with respective load group for performing a short circuit control on respective load group in response to a switching signal. A controlling method of such LED control circuit is also disclosed.

摘要翻译： 公开了一种用于控制LED照明装置的LED控制电路。 LED照明装置至少包括串联连接的负载组，LED控制电路包括：转换模块，被配置为将输入电压转换为输出电压，并输出工作电流作为采样电流; 配置为产生参考电压的参考电压产生模块; 控制模块，其被配置为将与所述采样电流相对应的采样电压与所述参考电压进行比较，并且根据比较结果将控制信号输出到所述转换模块; 以及负载短路模块，其包括多个开关，每个开关与相应的负载组并联连接，用于响应于开关信号对各个负载组进行短路控制。 还公开了这种LED控制电路的控制方法。

公开(公告)号：US20150163877A1

公开(公告)日：2015-06-11

申请号：US14350566

申请日：2012-08-27

申请人： Luca Bordin ,  Yuli Chen ,  Wuqiang Liao ,  Wei Tan

发明人： Luca Bordin ,  Yuli Chen ,  Wuqiang Liao ,  Wei Tan

IPC分类号： H05B33/08

CPC分类号： H05B33/0827 ,  H05B33/0815 ,  H05B33/0818 ,  H05B33/083 ,  H05B33/0848

摘要： An LED control circuit for controlling an LED illuminating device is disclosed. The LED illuminating device includes at least serially connected load group, and the LED control circuit includes: a conversion module configured to convert an input voltage to an output voltage, and to output a working current as a sample current; a reference voltage generating module configured to generate a reference voltage; a control module configured to compare a sample voltage corresponding to the sample current with the reference voltage, and to output a control signal to the conversion module according to a comparison result; and a load short circuit module including a plurality of switches each connected in parallel with respective load group for performing a short circuit control on respective load group in response to a switching signal. A controlling method of such LED control circuit is also disclosed.

摘要翻译： 公开了一种用于控制LED照明装置的LED控制电路。 LED照明装置至少包括串联连接的负载组，LED控制电路包括：转换模块，被配置为将输入电压转换为输出电压，并输出作为电流的工作电流; 配置为产生参考电压的参考电压产生模块; 控制模块，其被配置为将与所述采样电流相对应的采样电压与所述参考电压进行比较，并且根据比较结果将控制信号输出到所述转换模块; 以及负载短路模块，其包括多个开关，每个开关与相应的负载组并联连接，用于响应于开关信号对各个负载组进行短路控制。 还公开了这种LED控制电路的控制方法。

公开(公告)号：US20110266967A1

公开(公告)日：2011-11-03

申请号：US13097115

申请日：2011-04-29

申请人： Luca Bordin ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

发明人： Luca Bordin ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  Y02B20/383

摘要： The present invention discloses an LED driving method and an LED driving system, the method comprising: generating a PWM control signal with a PWM dimming signal; and controlling a PWM DC/DC converter with the PWM control signal, so as to generate a driving voltage of the LED.

摘要翻译： 本发明公开了一种LED驱动方法和LED驱动系统，该方法包括：利用PWM调光信号产生PWM控制信号; 以及利用所述PWM控制信号来控制PWM DC / DC转换器，以产生所述LED的驱动电压。

公开(公告)号：US09113516B2

公开(公告)日：2015-08-18

申请号：US14115200

申请日：2012-05-03

申请人： Luca Bordin ,  Shaoping Chen ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

发明人： Luca Bordin ,  Shaoping Chen ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0809 ,  H05B33/0815 ,  H05B33/0845

摘要： A dimmable LED driver adapted to be operated with a dimmer that is configured to generate a predetermined conductive angle, wherein the dimmable LED driver comprises: a rectifier configured to convert an alternating current output by the dimmer to a direct current, a buck PFC block configured to adjust an output voltage of the direct current so as to obtain a stable output voltage, a second buck DC/DC block configured to realize output of a constant current after the stable output voltage is realized, a dimming block configured to, after realizing output of the constant current, accomplish a dimming function jointly with the second buck DC/DC block, and an MCU configured to control the buck PFC block, the second buck DC/DC block and the dimming block.

摘要翻译： 一种可调光LED驱动器，其适用于被配置为产生预定导电角度的调光器操作，其中所述可调光LED驱动器包括：整流器，被配置为将由所述调光器输出的交流电转换成直流电;降压PFC块配置 调整直流电流的输出电压以获得稳定的输出电压;第二降压DC / DC模块，被配置为在实现稳定的输出电压之后实现恒定电流的输出;调光模块，被配置为在实现输出之后 的恒定电流，与第二降压DC / DC模块一起实现调光功能，以及配置成控制降压PFC模块的MCU，第二降压DC / DC模块和调光模块。

公开(公告)号：US20140125240A1

公开(公告)日：2014-05-08

申请号：US14115200

申请日：2012-05-03

申请人： Luca Bordin ,  Shaoping Chen ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

发明人： Luca Bordin ,  Shaoping Chen ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

IPC分类号： H05B33/08

CPC分类号： H05B33/0809 ,  H05B33/0815 ,  H05B33/0845

摘要： A dimmable LED driver adapted to be operated with a dimmer that is configured to generate a predetermined conductive angle, wherein the dimmable LED driver comprises: a rectifier configured to convert an alternating current output by the dimmer to a direct current, a buck PFC block configured to adjust an output voltage of the direct current so as to obtain a stable output voltage, a second buck DC/DC block configured to realize output of a constant current after the stable output voltage is realized, a dimming block configured to, after realizing output of the constant current, accomplish a dimming function jointly with the second buck DC/DC block, and an MCU configured to control the buck PFC block, the second buck DC/DC block and the dimming block.

摘要翻译： 一种可调光LED驱动器，其适用于被配置为产生预定导电角度的调光器操作，其中所述可调光LED驱动器包括：整流器，被配置为将由所述调光器输出的交流电转换成直流电;降压PFC块配置 调整直流电流的输出电压以获得稳定的输出电压;第二降压DC / DC模块，被配置为在实现稳定的输出电压之后实现恒定电流的输出;调光模块，被配置为在实现输出之后 的恒定电流，与第二降压DC / DC模块一起实现调光功能，以及配置成控制降压PFC模块的MCU，第二降压DC / DC模块和调光模块。

公开(公告)号：US08558477B2

公开(公告)日：2013-10-15

申请号：US13097143

申请日：2011-04-29

申请人： Luca Bordin ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

发明人： Luca Bordin ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

IPC分类号： H05B41/16

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： In various embodiments, a method for obtaining a conduction angle of a trailing edge dimmer is provided. The method may include determining a time point t0 when the trailing edge dimmer starts to be conductive; determining an earliest time point t1 when a deviation from an ideal waveform appears; and determining the conduction angle t1-t0 of the trailing edge dimmer based on the earliest time point t1 when the deviation from the ideal waveform appears and the time point t0 when the trailing edge dimmer starts to be conductive.

摘要翻译： 在各种实施例中，提供了一种用于获得后缘调光器的导通角的方法。 该方法可以包括当后沿调光器开始导通时确定时间点t0; 当出现与理想波形的偏差时，确定最早的时间点t1; 并且当出现与理想波形的偏离时的最早时间点t1和后沿调光器开始导通的时间点t0时，确定后沿调光器的导通角t1-t0。

公开(公告)号：US20110266968A1

公开(公告)日：2011-11-03

申请号：US13097143

申请日：2011-04-29

申请人： Luca Bordin ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

发明人： Luca Bordin ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： In various embodiments, a method for obtaining a conduction angle of a trailing edge dimmer is provided. The method may include determining a time point t0 when the trailing edge dimmer starts to be conductive; determining an earliest time point t1 when a deviation from an ideal waveform appears; and determining the conduction angle t1-t0 of the trailing edge dimmer based on the earliest time point t1 when the deviation from the ideal waveform appears and the time point t0 when the trailing edge dimmer starts to be conductive.

摘要翻译： 在各种实施例中，提供了一种用于获得后缘调光器的导通角的方法。 该方法可以包括当后沿调光器开始导通时确定时间点t0; 当出现与理想波形的偏差时，确定最早的时间点t1; 并且当出现与理想波形的偏离时的最早时间点t1和后沿调光器开始导通的时间点t0时，确定后沿调光器的导通角t1-t0。

公开(公告)号：US08947018B2

公开(公告)日：2015-02-03

申请号：US14115200

申请日：2012-05-03

申请人： Luca Bordin ,  Shaoping Chen ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

发明人： Luca Bordin ,  Shaoping Chen ,  Yuli Chen ,  Shijun Nie ,  Wei Tan

IPC分类号： H05B37/02 ,  H05B33/08

摘要： A dimmable LED driver adapted to be operated with a dimmer that is configured to generate a predetermined conductive angle, wherein the dimmable LED driver comprises: a rectifier configured to convert an alternating current output by the dimmer to a direct current, a buck PFC block configured to adjust an output voltage of the direct current so as to obtain a stable output voltage, a second buck DC/DC block configured to realize output of a constant current after the stable output voltage is realized, a dimming block configured to, after realizing output of the constant current, accomplish a dimming function jointly with the second buck DC/DC block, and an MCU configured to control the buck PFC block, the second buck DC/DC block and the dimming block.

公开(公告)号：US09950393B2

公开(公告)日：2018-04-24

申请号：US13976001

申请日：2011-12-23

申请人： Rajen S. Sidhu ,  Martha A. Dudek ,  James C. Matayabas, Jr. ,  Michelle S. Phen ,  Wei Tan

发明人： Rajen S. Sidhu ,  Martha A. Dudek ,  James C. Matayabas, Jr. ,  Michelle S. Phen ,  Wei Tan

IPC分类号： B23K35/02 ,  B23K35/362 ,  H01L23/00 ,  H05K3/34 ,  H01L23/488 ,  H01L23/498 ,  H01L21/48

CPC分类号： B23K35/025 ,  B23K35/362 ,  H01L21/4853 ,  H01L23/488 ,  H01L23/49816 ,  H01L24/03 ,  H01L24/05 ,  H01L24/11 ,  H01L24/13 ,  H01L2224/0381 ,  H01L2224/03828 ,  H01L2224/03829 ,  H01L2224/03849 ,  H01L2224/0401 ,  H01L2224/05794 ,  H01L2224/058 ,  H01L2224/05809 ,  H01L2224/05811 ,  H01L2224/05813 ,  H01L2224/05817 ,  H01L2224/05839 ,  H01L2224/05844 ,  H01L2224/11334 ,  H01L2224/11848 ,  H01L2224/11849 ,  H01L2224/119 ,  H01L2224/131 ,  H01L2924/00014 ,  H01L2924/01049 ,  H01L2924/3511 ,  H01L2924/3841 ,  H05K3/3489 ,  H05K2203/041 ,  H05K2203/046 ,  H01L2924/014 ,  H01L2924/01032 ,  H01L2924/01105 ,  H01L2924/00012 ,  H01L2924/01047 ,  H01L2924/01029 ,  H01L2924/0105 ,  H01L2924/0103 ,  H01L2924/01083

摘要： Flux formulations and solder attachment during the fabrication of electronic device assemblies are described. One flux formation includes a flux component and a metal particle component, the metal particle component being present in an amount of from 5 to 35 volume percent of the flux formulation. In one feature of certain embodiments, the metal particle component includes solder particles. Other embodiments are described and claimed.

公开(公告)号：US08942787B2

公开(公告)日：2015-01-27

申请号：US13316514

申请日：2011-12-11

申请人： Wei Tan ,  Alexander Seth Ross ,  Veera Venkata Lakshmi Rajesh Langoju ,  Ran Niu ,  Zhilin Wu ,  Weihua Gao

发明人： Wei Tan ,  Alexander Seth Ross ,  Veera Venkata Lakshmi Rajesh Langoju ,  Ran Niu ,  Zhilin Wu ,  Weihua Gao

IPC分类号： A61B5/05

CPC分类号： A61B5/0536 ,  A61B5/0073 ,  A61B5/0522 ,  G06F17/5018

摘要： An iteration method for computing a distribution of one or more properties within an object comprises defining a first mesh of the object, applying an excitation to the object, computing a response of the object to the applied excitation, obtaining a reference response of the object corresponding to the applied excitation, computing a distribution of one or more properties of the object, and updating at least a subset of the nodes of the first mesh to form an updated mesh of the object. The distribution of one or more properties of the object is computed using the computed response, the reference response, and the first mesh. The first mesh includes a plurality of nodes and elements. A connectivity relationship of the subset of the nodes in the updated mesh remains the same as in the first mesh.

摘要翻译： 用于计算对象内的一个或多个属性的分布的迭代方法包括定义对象的第一网格，向对象应用激励，计算对象对所施加的激励的响应，获得对象的参考响应 计算所述对象的一个​​或多个属性的分布，以及更新所述第一网格的所述节点的至少一个子集以形成所述对象的更新的网格。 使用计算的响应，参考响应和第一个网格来计算对象的一个​​或多个属性的分布。 第一网格包括多个节点和元素。 更新后的网格中节点子集的连接关系与第一个网格保持相同。