公开(公告)号：US20130148387A1

公开(公告)日：2013-06-13

申请号：US13338857

申请日：2011-12-28

申请人： Xuegang Ren ,  Jianhua Duan ,  Siyuan Xu ,  Na Liu ,  Zeqiang Chen

发明人： Xuegang Ren ,  Jianhua Duan ,  Siyuan Xu ,  Na Liu ,  Zeqiang Chen

IPC分类号： H02M3/335

CPC分类号： H02M1/36 ,  H02M3/33507 ,  H02M2001/0025

摘要： A switch-mode power supply (SMPS) includes a transformer having a primary winding coupled to a power switch, a secondary winding for providing an output of the power supply, and a controller. The controller includes a first input terminal for receiving a current sensing signal related to a current in the primary winding, a second input terminal for receiving a feedback signal related to a current in the secondary winding, and an output terminal for providing a control signal to turn on and off the power switch. When the feedback signal is higher than a first reference voltage, the controller is configured to cause the SMPS to maintain a constant output current at a first current magnitude. When the feedback signal is lower than the first reference voltage, the controller is configured to cause the SMPS to provide a second output current at a second current magnitude higher than the first current magnitude.

摘要翻译： 开关电源（SMPS）包括具有耦合到功率开关的初级绕组的变压器，用于提供电源的输出的次级绕组和控制器。 该控制器包括用于接收与初级绕组中的电流相关的电流感测信号的第一输入端子，用于接收与次级绕组中的电流有关的反馈信号的第二输入端，以及用于向第二输入端提供控制信号 打开和关闭电源开关。 当反馈信号高于第一参考电压时，控制器被配置为使得SMPS在第一电流幅度下保持恒定的输出电流。 当反馈信号低于第一参考电压时，控制器被配置为使得SMPS以比第一电流幅度高的第二电流幅度提供第二输出电流。

公开(公告)号：US08923021B2

公开(公告)日：2014-12-30

申请号：US13338857

申请日：2011-12-28

申请人： Xuegang Ren ,  Jianhua Duan ,  Siyuan Xu ,  Na Liu ,  Zeqiang Chen

发明人： Xuegang Ren ,  Jianhua Duan ,  Siyuan Xu ,  Na Liu ,  Zeqiang Chen

IPC分类号： H02M3/335

CPC分类号： H02M1/36 ,  H02M3/33507 ,  H02M2001/0025

摘要： A switch-mode power supply (SMPS) includes a transformer having a primary winding coupled to a power switch, a secondary winding for providing an output of the power supply, and a controller. The controller includes a first input terminal for receiving a current sensing signal related to a current in the primary winding, a second input terminal for receiving a feedback signal related to a current in the secondary winding, and an output terminal for providing a control signal to turn on and off the power switch. When the feedback signal is higher than a first reference voltage, the controller is configured to cause the SMPS to maintain a constant output current at a first current magnitude. When the feedback signal is lower than the first reference voltage, the controller is configured to cause the SMPS to provide a second output current at a second current magnitude higher than the first current magnitude.

摘要翻译： 开关电源（SMPS）包括具有耦合到功率开关的初级绕组的变压器，用于提供电源的输出的次级绕组和控制器。 该控制器包括用于接收与初级绕组中的电流相关的电流感测信号的第一输入端子，用于接收与次级绕组中的电流有关的反馈信号的第二输入端，以及用于向第二输入端提供控制信号 打开和关闭电源开关。 当反馈信号高于第一参考电压时，控制器被配置为使得SMPS在第一电流幅度下保持恒定的输出电流。 当反馈信号低于第一参考电压时，控制器被配置为使得SMPS以比第一电流幅度高的第二电流幅度提供第二输出电流。

公开(公告)号：US20120056548A1

公开(公告)日：2012-03-08

申请号：US13224325

申请日：2011-09-01

申请人： Jianhua Duan ,  Xuegang Ren ,  Na Liu

发明人： Jianhua Duan ,  Xuegang Ren ,  Na Liu

IPC分类号： H05B37/02 ,  G05F5/00

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  H05B33/0818

摘要： A system for driving an LED (light-emitting diode) lamp includes a dimmer circuit coupled to a line input voltage for varying a magnitude of an input voltage and a transformer having a primary winding, a secondary winding, and one or more auxiliary windings, the primary winding coupled to the dimmer circuit. The system also includes an output rectifying circuit coupled to the secondary winding for providing an output current to the LED lamp and a power switch coupled to the primary winding for controlling a current flow in the primary winding. The system further includes a controller having a comparator and a capacitor for providing a control signal to control the power switch for regulating the output current. The controller coupled to the dimmer circuit for receiving an average input voltage signal from the dimmer circuit, wherein the control signal is characterized by a duty cycle that is determined by a ratio of a charging current to a discharging current of the capacitor, and the ratio is related to the average input voltage signal from the dimmer circuit.

摘要翻译： 用于驱动LED（发光二极管）灯的系统包括耦合到用于改变输入电压的大小的线路输入电压的调光器电路和具有初级绕组，次级绕组和一个或多个辅助绕组的变压器， 耦合到调光器电路的初级绕组。 该系统还包括耦合到次级绕组的输出整流电路，用于向LED灯提供输出电流，以及耦合到初级绕组的功率开关，用于控制初级绕组中的电流。 该系统还包括具有比较器和电容器的控制器，用于提供控制信号以控制用于调节输出电流的功率开关。 所述控制器耦合到所述调光器电路，用于接收来自所述调光器电路的平均输入电压信号，其中所述控制信号的特征在于由充电电流与所述电容器的放电电流的比率确定的占空比， 与来自调光电路的平均输入电压信号有关。

公开(公告)号：US08878448B2

公开(公告)日：2014-11-04

申请号：US13224325

申请日：2011-09-01

申请人： Jianhua Duan ,  Xuegang Ren ,  Na Liu

发明人： Jianhua Duan ,  Xuegang Ren ,  Na Liu

IPC分类号： H05B37/00 ,  H05B33/08

CPC分类号： H05B33/0851 ,  H05B33/0815 ,  H05B33/0818

摘要： A system for driving an LED (light-emitting diode) lamp includes a dimmer circuit coupled to a line input voltage for varying a magnitude of an input voltage and a transformer having a primary winding, a secondary winding, and one or more auxiliary windings, the primary winding coupled to the dimmer circuit. The system also includes an output rectifying circuit coupled to the secondary winding for providing an output current to the LED lamp and a power switch coupled to the primary winding for controlling a current flow in the primary winding. The system further includes a controller having a comparator and a capacitor for providing a control signal to control the power switch for regulating the output current. The controller coupled to the dimmer circuit for receiving an average input voltage signal from the dimmer circuit, wherein the control signal is characterized by a duty cycle that is determined by a ratio of a charging current to a discharging current of the capacitor, and the ratio is related to the average input voltage signal from the dimmer circuit.

摘要翻译： 用于驱动LED（发光二极管）灯的系统包括耦合到用于改变输入电压的大小的线路输入电压的调光器电路和具有初级绕组，次级绕组和一个或多个辅助绕组的变压器， 耦合到调光器电路的初级绕组。 该系统还包括耦合到次级绕组的输出整流电路，用于向LED灯提供输出电流，以及耦合到初级绕组的功率开关，用于控制初级绕组中的电流。 该系统还包括具有比较器和电容器的控制器，用于提供控制信号以控制用于调节输出电流的功率开关。 所述控制器耦合到所述调光器电路，用于接收来自所述调光器电路的平均输入电压信号，其中所述控制信号的特征在于由充电电流与所述电容器的放电电流的比率确定的占空比， 与来自调光电路的平均输入电压信号有关。

公开(公告)号：US08964415B2

公开(公告)日：2015-02-24

申请号：US13610790

申请日：2012-09-11

申请人： Yajiang Zhu ,  Na Liu ,  Siyuan Xu

发明人： Yajiang Zhu ,  Na Liu ,  Siyuan Xu

IPC分类号： H02M3/335

CPC分类号： H02M1/4258 ,  Y02B70/126

摘要： A switching mode power supply (SMPS) includes a rectifying device configured for converting a periodically varying input AC (alternating current) voltage into a DC (direct current) voltage, and a transformer including a primary winding, a secondary winding, and an auxiliary winding. The primary winding is coupled to the rectifying device. An input capacitor is coupled to the rectifying device and the primary winding of the transformer. A first power switch is coupled to the input capacitor. A control circuit is coupled to the first power switch and is configured to control the first power switch based on a phase or amplitude of the input AC voltage. By controlling the charging and discharging of the input capacitor, power is provided to the primary winding during a longer portion of the AC input voltage cycle, allowing the rectifier device to have a larger conduction angle to increase a power factor (PF).

摘要翻译： 开关模式电源（SMPS）包括被配置为将周期性变化的输入AC（交流）电压转换为DC（直流）电压的整流装置，以及包括初级绕组，次级绕组和辅助绕组 。 初级绕组耦合到整流装置。 输入电容器耦合到整流装置和变压器的初级绕组。 第一电源开关耦合到输入电容器。 控制电路耦合到第一电源开关，并且被配置为基于输入AC电压的相位或幅度来控制第一功率开关。 通过控制输入电容器的充电和放电，在交流输入电压周期的较长部分期间向初级绕组提供功率，允许整流器件具有较大的导通角以增加功率因数（PF）。

公开(公告)号：US20130343095A1

公开(公告)日：2013-12-26

申请号：US13610790

申请日：2012-09-11

申请人： YAJIANG ZHU ,  Na Liu ,  Siyuan Xu

发明人： YAJIANG ZHU ,  Na Liu ,  Siyuan Xu

IPC分类号： H02M3/335 ,  H02M3/22

CPC分类号： H02M1/4258 ,  Y02B70/126

摘要： A switching mode power supply (SMPS) includes a rectifying device configured for converting a periodically varying input AC (alternating current) voltage into a DC (direct current) voltage, and a transformer including a primary winding, a secondary winding, and an auxiliary winding. The primary winding is coupled to the rectifying device. An input capacitor is coupled to the rectifying device and the primary winding of the transformer. A first power switch is coupled to the input capacitor. A control circuit is coupled to the first power switch and is configured to control the first power switch based on a phase or amplitude of the input AC voltage. By controlling the charging and discharging of the input capacitor, power is provided to the primary winding during a longer portion of the AC input voltage cycle, allowing the rectifier device to have a larger conduction angle to increase a power factor (PF).

摘要翻译： 开关模式电源（SMPS）包括被配置为将周期性变化的输入AC（交流）电压转换为DC（直流）电压的整流装置，以及包括初级绕组，次级绕组和辅助绕组 。 初级绕组耦合到整流装置。 输入电容器耦合到整流装置和变压器的初级绕组。 第一电源开关耦合到输入电容器。 控制电路耦合到第一电源开关，并且被配置为基于输入AC电压的相位或幅度来控制第一功率开关。 通过控制输入电容器的充电和放电，在交流输入电压周期的较长部分期间向初级绕组提供功率，允许整流器件具有较大的导通角以增加功率因数（PF）。

公开(公告)号：US20100229238A1

公开(公告)日：2010-09-09

申请号：US12468454

申请日：2009-05-19

申请人： Qingming Ma ,  Bryan Burns ,  Sheng Li ,  Na Liu ,  Xuejun Wu ,  Shan Yu ,  Li Zheng

发明人： Qingming Ma ,  Bryan Burns ,  Sheng Li ,  Na Liu ,  Xuejun Wu ,  Shan Yu ,  Li Zheng

IPC分类号： G06F21/06

CPC分类号： H04L63/1416

摘要： A method includes receiving a data unit, determining whether a current state, associated with a deterministic finite automata (DFA) that includes a portion of states in a bitmap and a remaining portion of states in a DFA table, is a bitmap state or not, and determining whether a value corresponding to the data unit is greater than a threshold value, when it is determined that the current state is not a bitmap state. The method further includes determining whether the current state is insensitive, when it is determined that the value corresponding to the data unit is greater than the threshold value, where insensitive means that each next state is a same state for the current state, and selecting a default state, as a next state for the current, when it is determined that the current state is insensitive.

摘要翻译： 一种方法包括接收数据单元，确定与包括位图中的状态的一部分和DFA表中的剩余部分状态的确定性有限自动机（DFA）相关联的当前状态是否为位图状态， 以及当确定当前状态不是位图状态时，确定对应于所述数据单元的值是否大于阈值。 该方法还包括当确定对应于数据单元的值大于阈值时确定当前状态是否不敏感，其中不确定意味着每个下一状态对于当前状态是相同的状态，并且选择 默认状态，作为当前的下一状态，当确定当前状态不敏感时。

公开(公告)号：US20100029952A1

公开(公告)日：2010-02-04

申请号：US12454273

申请日：2009-05-13

申请人： Robert J. Tweg ,  William E. Moerner ,  Samuel J. Lord ,  Na Liu ,  Reichel Samuel

发明人： Robert J. Tweg ,  William E. Moerner ,  Samuel J. Lord ,  Na Liu ,  Reichel Samuel

IPC分类号： C07D213/02 ,  C07D307/02 ,  C07D249/04 ,  C07D271/12

CPC分类号： C07D307/30 ,  C07D213/42 ,  C07D249/16 ,  C07D265/38 ,  C07D271/12 ,  C07D309/34 ,  Y10S436/80

摘要： Fluorophores derived from photoactivatable azide-pi-acceptor fluorogens or from a thermal reaction of an azide-pi-acceptor fluorogen with an alkene or alkyne are disclosed. Fluorophores derived from a thermal reaction of an alkyne-pi-acceptor fluorogen with an azide are also disclosed. The fluorophores can readily be activated by light and can be used to label a biomolecule and imaged on a single-molecule level in living cells.

摘要翻译： 公开了衍生自可光活化叠氮受体氟原子的荧光团或来自叠氮受体氟原子与烯烃或炔烃的热反应。 还公开了衍生自炔 - 吡啶受体氟原子与叠氮化物的热反应的荧光团。 荧光团可以容易地被光激活，并且可以用于标记生物分子并在活细胞中在单分子水平上成像。

公开(公告)号：US07524235B2

公开(公告)日：2009-04-28

申请号：US11753222

申请日：2007-05-24

申请人： Yuling Liu ,  Jianxin Zhang ,  Weiwei Li ,  Yanyan Huang ,  Yongchao Bian ,  Na Liu

发明人： Yuling Liu ,  Jianxin Zhang ,  Weiwei Li ,  Yanyan Huang ,  Yongchao Bian ,  Na Liu

IPC分类号： B24B1/00

CPC分类号： B28D5/022 ,  H01L21/3043

摘要： This invention provides a method for eliminating the surface stress of a silicon wafer comprising forming one or more anti-stress groove(s) on the surface of the silicon wafer. These anti-stress grooves can reduce or eliminate the surface stress of silicon wafer effectively to avoid the formation of slip lines and dislocation arrangements, which may induce the p-n junction to conduct or the leakage current to increase. The process is highly efficient and low in cost. It is simple to manage and does not require additional equipment beyond that already used for processing of silicon wafers.

摘要翻译： 本发明提供了一种消除硅晶片的表面应力的方法，包括在硅晶片的表面上形成一个或多个抗应力槽。 这些抗应力槽可以有效地减少或消除硅晶片的表面应力，以避免形成滑移线和位错布置，这可能导致p-n结导通或漏电流增加。 该过程高效，成本低。 管理简单，不需要超出已经用于硅晶片处理的附加设备。

公开(公告)号：US08261352B2

公开(公告)日：2012-09-04

申请号：US12468454

申请日：2009-05-19

申请人： Qingming Ma ,  Bryan Burns ,  Sheng Li ,  Na Liu ,  Xuejun Wu ,  Shan Yu ,  Li Zheng

发明人： Qingming Ma ,  Bryan Burns ,  Sheng Li ,  Na Liu ,  Xuejun Wu ,  Shan Yu ,  Li Zheng

IPC分类号： G06F21/06

CPC分类号： H04L63/1416

摘要： A method includes receiving a data unit, determining whether a current state, associated with a deterministic finite automata (DFA) that includes a portion of states in a bitmap and a remaining portion of states in a DFA table, is a bitmap state or not, and determining whether a value corresponding to the data unit is greater than a threshold value, when it is determined that the current state is not a bitmap state. The method further includes determining whether the current state is insensitive, when it is determined that the value corresponding to the data unit is greater than the threshold value, where insensitive means that each next state is a same state for the current state, and selecting a default state, as a next state for the current, when it is determined that the current state is insensitive.

摘要翻译： 一种方法包括接收数据单元，确定与包括位图中的状态的一部分和DFA表中的剩余部分状态的确定性有限自动机（DFA）相关联的当前状态是否为位图状态， 以及当确定当前状态不是位图状态时，确定对应于所述数据单元的值是否大于阈值。 该方法还包括当确定对应于数据单元的值大于阈值时确定当前状态是否不敏感，其中不确定意味着每个下一状态对于当前状态是相同的状态，并且选择 默认状态，作为当前的下一状态，当确定当前状态不敏感时。