公开(公告)号：US20130344394A1

公开(公告)日：2013-12-26

申请号：US14003132

申请日：2012-03-08

Applicant: Li Yang ,  Jizhang Chen ,  Shaohua Fang

Inventor： Li Yang ,  Jizhang Chen ,  Shaohua Fang

IPC: H01M4/36 ,  H01M4/04

CPC classification number: H01M4/366 ,  H01M4/04 ,  H01M4/483 ,  H01M4/587 ,  H01M10/0525

Abstract: Disclosed is a tin-carbon mesoporous composite for a lithium ion battery negative electrode material, and a method for preparing the same. Using a mesoporous molecular sieve as a template, the precursors of tin and carbon are caused to fill the mesopores of the template and carbonized under nitrogen to obtain a composite of stannic oxide and carbon, and the stannic oxide is encapsulated by the carbon; and then the tin-carbon mesoporous composite for lithium ion battery negative electrode material is obtained by hydrothermal treatment, carbonization, etching, and high temperature carbothermic reduction. The tin-carbon mesoporous composite for lithium ion battery negative electrode material synthesized in the present invention has a reversible capacity of 550 mAh·g−1, after 100 cycles at a current density of 500 mA·g−1.

Abstract translation: 公开了一种用于锂离子电池负极材料的锡碳介孔复合材料及其制备方法。 使用介孔分子筛作为模板，使锡和碳的前体填充模板的介孔并在氮气下碳化，得到氧化锡和碳的复合物，并且氧化锡被碳包裹; 然后通过水热处理，碳化，蚀刻和高温碳热还原获得用于锂离子电池负极材料的锡碳中孔复合材料。 本发明中合成的锂离子电池负极材料用锡碳介孔复合体，在500mA·g-1的电流密度下经过100次循环后具有550mAh·g-1的可逆容量。

公开(公告)号：US20140011099A1

公开(公告)日：2014-01-09

申请号：US14006504

申请日：2012-03-23

Applicant: Li Yang ,  Shaohua Fang

Inventor： Li Yang ,  Shaohua Fang

IPC: H01M10/056 ,  H01M10/0525

CPC classification number: H01M10/056 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  Y02E60/122

Abstract: An electrolyte solvent for a cathode active material composed of lithium oxo acid salt. The solvent is used for a lithium ion secondary battery using the lithium oxo acid salt as a cathode material. The electrolyte solvent includes an ammonium ion which includes two or more alkoxyalkyl groups.

Abstract translation: 一种由含锂酸盐构成的正极活性物质的电解质溶剂。 该溶剂用于使用锂氧代酸盐作为阴极材料的锂离子二次电池。 电解质溶剂包括包含两个或多个烷氧基烷基的铵离子。

公开(公告)号：US09379413B2

公开(公告)日：2016-06-28

申请号：US14006504

申请日：2012-03-23

Applicant: Li Yang ,  Shaohua Fang

Inventor： Li Yang ,  Shaohua Fang

IPC: H01M10/056 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

CPC classification number: H01M10/056 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  Y02E60/122

Abstract: An electrolyte solvent for a cathode active material composed of lithium oxo acid salt. The solvent is used for a lithium ion secondary battery using the lithium oxo acid salt as a cathode material. The electrolyte solvent includes an ammonium ion which includes two or more alkoxyalkyl groups.

Abstract translation: 一种由含锂酸盐构成的正极活性物质的电解质溶剂。 该溶剂用于使用锂氧代酸盐作为阴极材料的锂离子二次电池。 电解质溶剂包括包含两个或多个烷氧基烷基的铵离子。

公开(公告)号：US20090279333A1

公开(公告)日：2009-11-12

申请号：US12248665

申请日：2008-10-09

Applicant: Yajiang Zhu ,  Ruixia Fei ,  Wenhui Dong ,  Shaohua Fang

Inventor： Yajiang Zhu ,  Ruixia Fei ,  Wenhui Dong ,  Shaohua Fang

IPC: H02M7/155

CPC classification number: H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

Abstract: An apparatus for coupling a switching mode power supply (SMPS) controller to a rectified line voltage. The apparatus includes a high-voltage startup transistor configured to provide a charging current during a startup phase of the SMPS controller and to provide substantially no current during a normal operation phase of the SMPS controller. A switch coupled to the high-voltage startup transistor. The switch receives a control signal from the SMPS controller, for turning off the switch during the startup phase and turning on the switch during the normal operation phase. A biasing device is connected in series with the switch and maintains the startup transistor in an off state when the SMPS controller is in the normal operation phase. A standby current in the apparatus is substantially lower when the SMPS controller is in the normal operation phase than the charging current in the apparatus when the SMPS is in the startup phase.

Abstract translation: 一种用于将开关模式电源（SMPS）控制器耦合到整流线路电压的装置。 该装置包括高压启动晶体管，其被配置为在SMPS控制器的启动阶段期间提供充电电流，并且在SMPS控制器的正常操作阶段期间基本上不提供电流。 一个开关，耦合到高电压启动晶体管。 开关从SMPS控制器接收控制信号，在启动阶段关闭开关，并在正常运行阶段打开开关。 当SMPS控制器处于正常工作阶段时，偏置装置与开关串联连接，并将启动晶体管保持在断开状态。 当SMPS处于启动阶段时，当SMPS控制器处于正常操作阶段时，装置中的备用电流大大低于装置中的充电电流。

公开(公告)号：US08792258B2

公开(公告)日：2014-07-29

申请号：US12248665

申请日：2008-10-09

Applicant: Yajiang Zhu ,  Ruixia Fei ,  Wenhui Dong ,  Shaohua Fang

Inventor： Yajiang Zhu ,  Ruixia Fei ,  Wenhui Dong ,  Shaohua Fang

IPC: H02M3/335 ,  H02M3/338

CPC classification number: H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

Abstract: An apparatus for coupling a switching mode power supply (SMPS) controller to a rectified line voltage. The apparatus includes a high-voltage startup transistor configured to provide a charging current during a startup phase of the SMPS controller and to provide substantially no current during a normal operation phase of the SMPS controller. A switch coupled to the high-voltage startup transistor. The switch receives a control signal from the SMPS controller, for turning off the switch during the startup phase and turning on the switch during the normal operation phase. A biasing device is connected in series with the switch and maintains the startup transistor in an off state when the SMPS controller is in the normal operation phase. A standby current in the apparatus is substantially lower when the SMPS controller is in the normal operation phase than the charging current in the apparatus when the SMPS is in the startup phase.

Abstract translation: 一种用于将开关模式电源（SMPS）控制器耦合到整流线路电压的装置。 该装置包括高压启动晶体管，其被配置为在SMPS控制器的启动阶段期间提供充电电流，并且在SMPS控制器的正常操作阶段期间基本上不提供电流。 一个开关，耦合到高电压启动晶体管。 开关从SMPS控制器接收控制信号，在启动阶段关闭开关，并在正常运行阶段打开开关。 当SMPS控制器处于正常工作阶段时，偏置装置与开关串联连接，并将启动晶体管保持在断开状态。 当SMPS处于启动阶段时，当SMPS控制器处于正常操作阶段时，装置中的备用电流大大低于装置中的充电电流。

公开(公告)号：US08559200B2

公开(公告)日：2013-10-15

申请号：US13015493

申请日：2011-01-27

Applicant: Qiang Zong ,  Shaohua Fang ,  Reixia Fei ,  Jia Xie

Inventor： Qiang Zong ,  Shaohua Fang ,  Reixia Fei ,  Jia Xie

IPC: H02M1/00 ,  H02M3/335

CPC classification number: H02M1/36

Abstract: A startup circuit for a switching-mode power supply (SMPS) includes a first voltage detector configured to trigger the switching-mode power supply from a first operation mode to a second operation mode when an input supply voltage exceeds a first threshold voltage, a current consumption in the first voltage detector in the first operation mode being determined by a reverse leakage current of a diode. A feedback circuit is coupled to the first voltage detector and being capable of maintaining a positive feedback loop. A second voltage detector is coupled to the first voltage detector and the feedback circuit, and is configured to trigger the switching-mode power supply to switch from the second operation mode to the first operation mode when the input supply voltage is below a second threshold voltage.

Abstract translation: 用于开关电源（SMPS）的启动电路包括：第一电压检测器，其被配置为当输入电源电压超过第一阈值电压时将开关模式电源从第一操作模式触发到第二操作模式;电流 在第一操作模式中第一电压检测器中的消耗由二极管的反向泄漏电流确定。 反馈电路耦合到第一电压检测器并且能够维持正反馈回路。 第二电压检测器耦合到第一电压检测器和反馈电路，并且被配置为当输入电源电压低于第二阈值电压时触发开关模式电源从第二操作模式切换到第一操作模式 。

公开(公告)号：US20100244804A1

公开(公告)日：2010-09-30

申请号：US12466313

申请日：2009-05-14

Applicant: Qiang Zong ,  Shaohua Fang ,  Reixia Fei ,  Jia Xie

Inventor： Qiang Zong ,  Shaohua Fang ,  Reixia Fei ,  Jia Xie

IPC: G05F5/00

CPC classification number: H02M1/36

Abstract: A startup circuit for a switching-mode power supply (SMPS) includes a first voltage detector configured to trigger the switching-mode power supply from a startup mode to a normal operation mode when an input supply voltage exceeds a first threshold voltage, a current consumption in the first voltage detector in the startup mode being determined by a reverse leakage current of a diode. A feedback circuit is coupled to the first voltage detector and being capable of maintaining a positive feedback loop with a current consumption of no more than a microampere. A second voltage detector is coupled to the first voltage detector and the feedback circuit, and is configured to trigger the switching-mode power supply to switch from the normal operation mode to the startup mode when the input supply voltage is below a second threshold voltage.

Abstract translation: 用于开关电源（SMPS）的启动电路包括：第一电压检测器，被配置为当输入电源电压超过第一阈值电压时，将开关模式电源从启动模式触发到正常工作模式;电流消耗 在启动模式下的第一电压检测器由二极管的反向泄漏电流确定。 反馈电路耦合到第一电压检测器并且能够维持具有不超过微安的电流消耗的正反馈回路。 第二电压检测器耦合到第一电压检测器和反馈电路，并且被配置为当输入电源电压低于第二阈值电压时，触发开关模式电源从正常操作模式切换到启动模式。

公开(公告)号：US08897039B2

公开(公告)日：2014-11-25

申请号：US12136760

申请日：2008-06-10

Applicant: Yajiang Zhu ,  Tao Peng ,  Ruixia Fei ,  Shaohua Fang

Inventor： Yajiang Zhu ,  Tao Peng ,  Ruixia Fei ,  Shaohua Fang

IPC: H02M3/335 ,  H02M1/44 ,  H03K7/06 ,  H03K5/1532 ,  H03K17/16

CPC classification number: H02M3/33523 ,  H02M1/44 ,  H03K5/1532 ,  H03K7/06 ,  H03K17/16

Abstract: A pulse frequency modulation (PFM) controller for controlling a switching mode power supply. The controller includes an output terminal for providing a control signal to turn on and off a current in the power supply to regulate an output of the power supply. A first input terminal receives a feedback signal related to the output of the power supply, the feedback signal exhibiting a ringing waveform when the current in the power supply is turned off. The controller also includes a control circuit configured to provide the control signal in response to the feedback signal. The control signal is adapted to turn on the current in the power supply when the feedback signal is substantially at a valley of the ringing waveform of the feedback signal. In an embodiment, such a PFM controller can reduce turn-on transition loss in a power supply and provides frequency dithering to reduce electromagnetic interference.

Abstract translation: 用于控制开关模式电源的脉冲频率调制（PFM）控制器。 该控制器包括输出端子，用于提供控制信号以接通和关断电源中的电流以调节电源的输出。 第一输入端子接收与电源的输出相关的反馈信号，当电源中的电流关闭时，反馈信号呈现振铃波形。 该控制器还包括控制电路，该控制电路被配置为响应于反馈信号提供控制信号。 当反馈信号基本上处于反馈信号的振铃波形的谷谷时，控制信号适于接通电源中的电流。 在一个实施例中，这样的PFM控制器可以减少电源中的导通过渡损耗并提供频率抖动以减少电磁干扰。

公开(公告)号：US20110116289A1

公开(公告)日：2011-05-19

申请号：US13015493

申请日：2011-01-27

Applicant: Qiang Zong ,  Shaohua Fang ,  Reixia Fei ,  Jia Xie

Inventor： Qiang Zong ,  Shaohua Fang ,  Reixia Fei ,  Jia Xie

IPC: H02M1/36

CPC classification number: H02M1/36

Abstract: A startup circuit for a switching-mode power supply (SMPS) includes a first voltage detector configured to trigger the switching-mode power supply from a first operation mode to a second operation mode when an input supply voltage exceeds a first threshold voltage, a current consumption in the first voltage detector in the first operation mode being determined by a reverse leakage current of a diode. A feedback circuit is coupled to the first voltage detector and being capable of maintaining a positive feedback loop. A second voltage detector is coupled to the first voltage detector and the feedback circuit, and is configured to trigger the switching-mode power supply to switch from the second operation mode to the first operation mode when the input supply voltage is below a second threshold voltage.

Abstract translation: 用于开关电源（SMPS）的启动电路包括：第一电压检测器，其被配置为当输入电源电压超过第一阈值电压时将开关模式电源从第一操作模式触发到第二操作模式;电流 在第一操作模式中第一电压检测器中的消耗由二极管的反向泄漏电流确定。 反馈电路耦合到第一电压检测器并且能够维持正反馈回路。 第二电压检测器耦合到第一电压检测器和反馈电路，并且被配置为当输入电源电压低于第二阈值电压时触发开关模式电源从第二操作模式切换到第一操作模式 。

公开(公告)号：US07894219B2

公开(公告)日：2011-02-22

申请号：US12466313

申请日：2009-05-14

Applicant: Qiang Zong ,  Shaohua Fang ,  Reixia Fei ,  Jia Xie

Inventor： Qiang Zong ,  Shaohua Fang ,  Reixia Fei ,  Jia Xie

IPC: H02M1/00 ,  H02M3/335

CPC classification number: H02M1/36

Abstract: A startup circuit for a switching-mode power supply (SMPS) includes a first voltage detector configured to trigger the switching-mode power supply from a startup mode to a normal operation mode when an input supply voltage exceeds a first threshold voltage, a current consumption in the first voltage detector in the startup mode being determined by a reverse leakage current of a diode. A feedback circuit is coupled to the first voltage detector and being capable of maintaining a positive feedback loop with a current consumption of no more than a microampere. A second voltage detector is coupled to the first voltage detector and the feedback circuit, and is configured to trigger the switching-mode power supply to switch from the normal operation mode to the startup mode when the input supply voltage is below a second threshold voltage.

Abstract translation: 用于开关电源（SMPS）的启动电路包括：第一电压检测器，被配置为当输入电源电压超过第一阈值电压时，将开关模式电源从启动模式触发到正常工作模式;电流消耗 在启动模式下的第一电压检测器由二极管的反向泄漏电流确定。 反馈电路耦合到第一电压检测器并且能够维持具有不超过微安的电流消耗的正反馈回路。 第二电压检测器耦合到第一电压检测器和反馈电路，并且被配置为当输入电源电压低于第二阈值电压时，触发开关模式电源从正常操作模式切换到启动模式。