公开(公告)号：US06169667A

公开(公告)日：2001-01-02

申请号：US09160414

申请日：1998-09-25

申请人： Rui Liu

发明人： Rui Liu

IPC分类号： H02M3335

CPC分类号： H02M3/33576 ,  H02M3/33561 ,  H02M2001/0032 ,  Y02B70/16

摘要： A power system utilizing a method and apparatus to cost-effectively and efficiently supply power to an electrical system requiring a switchable main power source and a continuous auxiliary power source. Specifically, the power system utilizes an improved power converter having a main output circuit and an auxiliary output circuit coupled to a common input circuit. Primary switching circuitry in the input circuit, secondary switching circuitry in the main output circuit, and capacitance in the auxiliary output circuit allow for the systematic control of the main output from the power converter to the electrical system. In particular, the main output circuit can be switched on and off without interrupting the auxiliary output circuits supply of electrical power to the electrical system. Moreover, switching at a zero current state allows for the use of more cost-effective and efficient circuitry. The power system method and apparatus of the present invention produces functionality and operating characteristics similar to using two separate and independent power systems to supply an electrical system but with increased efficiency as well as reduced cost and complexity.

摘要翻译： 一种电力系统，其利用方法和装置来成本有效且高效地向需要可切换主电源和连续辅助电源的电气系统供电。 具体地，电力系统利用改进的功率转换器，其具有耦合到公共输入电路的主输出电路和辅助输出电路。 输入电路中的主开关电路，主输出电路中的二次开关电路和辅助输出电路中的电容允许系统地控制从功率转换器到电气系统的主输出。 特别地，主输出电路可以接通和断开，而不会中断辅助输出电路向电气系统供电。 此外，在零电流状态下的切换允许使用更具成本效益和更有效率的电路。 本发明的电力系统方法和装置产生类似于使用两个独立和独立的电力系统来提供电气系统但具有增加的效率以及降低的成本和复杂性的功能和操作特性。

公开(公告)号：US6163470A

公开(公告)日：2000-12-19

申请号：US415200

申请日：1999-10-07

申请人： Francisco Higinio Chavez ,  Jin He ,  Greg P. Jorgenson ,  Rui Liu

发明人： Francisco Higinio Chavez ,  Jin He ,  Greg P. Jorgenson ,  Rui Liu

IPC分类号： H02H9/00 ,  H02H7/125

CPC分类号： H02H9/001 ,  H02H9/005 ,  Y10S323/908

摘要： A filter for an inrush relay, the relay having a relay coil having first and second leads includes a common-mode inductor connected to the relay coil leads across the relay coil. A first capacitor is connected to the first relay coil lead and a chassis ground potential. A second capacitor is connected to the second relay coil lead and the chassis ground potential. A third capacitor is connected to the relay coil leads across the relay coil. A first resistor is connected to the first relay lead, and a second resistor is connected to the second relay coil lead. The inductor and first and second capacitors form a high frequency common-mode filter. The third capacitor and first and second resistors form a high frequency differential mode filter.

摘要翻译： 一种用于浪涌继电器的滤波器，具有具有第一和第二引线的继电器线圈的继电器包括连接到继电器线圈引线上的共模电感器，跨过继电器线圈。 第一电容器连接到第一继电器线圈引线和机架接地电位。 第二电容器连接到第二继电器线圈引线和底盘接地电位。 继电器线圈的第三个电容器连接到继电器线圈上。 第一电阻器连接到第一继电器引线，第二电阻器连接到第二继电器线圈引线。 电感器和第一和第二电容器形成高频共模滤波器。 第三电容器和第一和第二电阻器形成高频差模滤波器。

公开(公告)号：US6163466A

公开(公告)日：2000-12-19

申请号：US397991

申请日：1999-09-16

申请人： Marco A. Davila, Jr. ,  Yimin Jiang ,  Rui Liu

发明人： Marco A. Davila, Jr. ,  Yimin Jiang ,  Rui Liu

IPC分类号： H02M3/337 ,  H02M7/08 ,  H02M3/335

CPC分类号： H02M7/08 ,  H02M3/337

摘要： A circuit for, and method of, reducing a preload current required to maintain a duty cycle of an asymmetrical DC/DC converter and a DC/DC converter incorporating the circuit or the method. In one embodiment, the circuit includes an auxiliary inductor, coupled in series with an output capacitor of the converter in an output current doubler thereof, that reduces ripple current in the output current doubler and thereby maintains the duty cycle.

摘要翻译： 降低保持不对称DC / DC转换器的占空比所需的预负载电流的电路及其方法，以及包含电路或方法的DC / DC转换器。 在一个实施例中，电路包括辅助电感器，其在输出电流倍增器中与转换器的输出电容器串联耦合，从而减小输出电流倍增器中的纹波电流，从而维持占空比。

公开(公告)号：US6091610A

公开(公告)日：2000-07-18

申请号：US56002

申请日：1998-04-06

申请人： Richard R. Garcia ,  Rui Liu

发明人： Richard R. Garcia ,  Rui Liu

IPC分类号： H02M1/36 ,  H02M3/337 ,  H02M3/335 ,  H02H7/122

CPC分类号： H02M1/36 ,  H02M3/3376

摘要： Various systems and methods for providing soft-start and soft-stop to an asymmetrical half-bridge converter and a power supply employing such systems or methods. The power supply includes a power train including an asymmetrical half-bridge converter having an energy storage device coupled across a complementary switch thereof. In one embodiment, a conductive path is coupled across the energy storage device to substantially discharge the energy storage device and thereby reduce current stress in the complementary switch when the converter turns on. In another embodiment, a controller, coupled to the complementary switch, provides a drive waveform to drive the complementary switch. The controller increases a duty cycle of the drive waveform as the converter turns off.

摘要翻译： 用于向非对称半桥转换器提供软启动和软停止的各种系统和方法以及采用这种系统或方法的电源。 电源包括具有非对称半桥转换器的动力传动系，其具有耦合在其互补开关上的能量存储装置。 在一个实施例中，导电路径跨过能量存储装置耦合，以基本上释放能量存储装置，从而在转换器接通时减小互补开关中的电流应力。 在另一个实施例中，耦合到互补开关的控制器提供驱动互补开关的驱动波形。 当转换器关闭时，控制器增加驱动波形的占空比。

公开(公告)号：US5978238A

公开(公告)日：1999-11-02

申请号：US53954

申请日：1998-04-02

申请人： Rui Liu

发明人： Rui Liu

IPC分类号： H02M3/335 ,  H02H7/122

CPC分类号： H02M3/33576

摘要： For use with a buck-based converter having a rectifier that receives current from a secondary side of a isolation transformer, an active clamp and a method of operating the buck-based converter to manage reverse recovery energy therein. In one embodiment, the active clamp includes: (1) an auxiliary transformer coupled across the isolation transformer and (2) an auxiliary switch, interposed between the auxiliary transformer and the rectifier, that: (2a) closes as a function of an output voltage of the rectifier to cause the auxiliary transformer to receive reverse recovery energy from the rectifier and deliver the reverse recovery energy to a primary side of the isolation transformer and (2b) opens to limit a magnetic flux of a core of said auxiliary transformer.

摘要翻译： 用于具有从隔离变压器的次级侧接收电流的整流器的buck基转换器，有源钳位电路和操作基于buck的转换器来管理其中的反向恢复能量的方法。 在一个实施例中，有源钳位包括：（1）耦合在隔离变压器两侧的辅助变压器和（2）置于辅助变压器和整流器之间的辅助开关，其中：（2a）作为输出电压的函数闭合 使辅助变压器从整流器接收反向恢复能量，并将反向恢复能量传递到隔离变压器的初级侧，并且（2b）打开以限制所述辅助变压器的磁芯的磁通量。

公开(公告)号：US5907223A

公开(公告)日：1999-05-25

申请号：US891879

申请日：1997-07-09

申请人： Wen-Jian Gu ,  Rui Liu

发明人： Wen-Jian Gu ,  Rui Liu

IPC分类号： H05B41/24 ,  H02M1/00 ,  H02M1/42 ,  H02M1/44 ,  H02M5/22 ,  H05B41/28 ,  H05B41/282 ,  H05B37/02

CPC分类号： H02M1/44 ,  H02M1/4208 ,  H02M5/225 ,  H05B41/28 ,  Y02B70/126

摘要： An AC-AC ballast system for a discharge lamp (e.g., a fluorescent lamp), which includes a PFC converter which incorporates an isolation transformer, and a DC-AC inverter provided on the secondary side of the isolation transformer. Because the AC line input is isolated from the lamp load by the transformer in the PFC converter, the switching frequency of the PFC converter can be advantageously significantly higher than the lamp current frequency (and the switching frequency of the DC-AC inverter), to thereby enable a significant reduction in the size and weight of the ballast system, without an increase in the emission of EMI radiation from the lamp. In this regard, the ballast system of the present invention can be thought of as a two-frequency ballast system having an isolated PFC converter.

摘要翻译： 一种用于放电灯（例如，荧光灯）的AC-AC镇流器系统，其包括具有隔离变压器的PFC转换器和设置在隔离变压器的次级侧上的DC-AC逆变器。 由于交流线路输入与PFC转换器中的变压器与灯负载隔离，所以PFC转换器的开关频率可以有利地显着高于灯电流频率（以及直流 - 交流逆变器的开关频率）至 从而能够显着降低镇流器系统的尺寸和重量，而不增加来自灯的EMI辐射的发射。 在这方面，本发明的镇流器系统可以被认为是具有隔离PFC转换器的双频镇流器系统。

公开(公告)号：US5898581A

公开(公告)日：1999-04-27

申请号：US921995

申请日：1997-08-27

申请人： Rui Liu

发明人： Rui Liu

IPC分类号： H02M1/34 ,  H02M3/335 ,  H02H7/125 ,  H02M5/42 ,  H02M7/00

CPC分类号： H02M1/34 ,  H02M3/33576 ,  H02M2001/342 ,  Y02B70/1491

摘要： For use with a buck-based converter having an isolation transformer, a snubber circuit and a method of damping a transient in the power rectifying diode due to its reverse recovery. In one embodiment, the snubber circuit includes: (1) a capacitor, coupled to a power rectifying diode in the buck-based converter, that receives energy from the power rectifying diode during a reverse recovery period thereof and (2) a flyback converter, coupled to the capacitor, that receives the energy from the capacitor and delivers the energy to a voltage source on the primary side of the isolation transformer.

摘要翻译： 用于具有隔离变压器的基于buck的转换器，缓冲电路以及由于其反向恢复而阻尼功率整流二极管中的瞬变的方法。 在一个实施例中，缓冲电路包括：（1）耦合到基于降压的转换器中的功率整流二极管的电容器，其在其反向恢复周期期间从功率整流二极管接收能量，以及（2）反激转换器， 耦合到电容器，其从电容器接收能量，并将能量传递到隔离变压器的初级侧上的电压源。

公开(公告)号：US20230305187A1

公开(公告)日：2023-09-28

申请号：US18041497

申请日：2021-07-13

申请人： Pei Chen ,  Rui Liu ,  Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences

发明人： Luonan Chen ,  Pei Chen ,  Rui Liu

IPC分类号： G01W1/02

CPC分类号： G01W1/02

摘要： The invention discloses a multi-step prediction method and system of future wind speed based on automatic reservoir neural network, realizes accurate and fast multi-step prediction of future information, maintains high robustness to noise and system time-varying, and avoids over-fitting problems. The technical scheme is: for short-term high-dimensional wind speed data, based on the delay embedding theory, the observed high-dimensional dynamics is used as the reservoir by using space-time information transformation, and the high-dimensional wind speed data is mapped to the future information of the target variable. The automatic reservoir neural network realizes the multi-step prediction of the target variable by solving a pair of conjugate space-time information interaction equations.

公开(公告)号：US20220346980A1

公开(公告)日：2022-11-03

申请号：US17409832

申请日：2021-08-24

申请人： Dafei Zu ,  Rui Liu ,  Rui Huang ,  Zixiang Wang

发明人： Dafei Zu ,  Rui Liu ,  Rui Huang ,  Zixiang Wang

IPC分类号： A61F2/70 ,  A61F2/66

摘要： The present invention provides a mechanical prosthetic limb, which relates to the technical field of medical devices. The mechanical prosthetic limb includes a prosthetic limb shank, a fixed component for connecting the prosthetic limb shank with a human body, a power-driven first drive mechanism that is installed on the prosthetic limb shank, and a prosthetic limb sole that is connected to the bottom of the prosthetic limb shank; the fixed component is rotationally connected with the prosthetic limb shank through the first drive mechanism; and the prosthetic limb shank is rotationally connected with the prosthetic limb sole through the first drive mechanism. It can relieve the burdens of the disabled in the automatic advance way, thereby improving convenience.

公开(公告)号：US10699778B2

公开(公告)日：2020-06-30

申请号：US15961220

申请日：2018-04-24

申请人： Shimeng Yu ,  Rui Liu

发明人： Shimeng Yu ,  Rui Liu

IPC分类号： G11C11/419 ,  G11C11/54 ,  G11C11/418 ,  G11C11/412 ,  H03K19/20 ,  G06N3/08 ,  G06N3/063 ,  G06N3/04 ,  H01L27/11 ,  G11C7/10

摘要： A static random access memory (SRAM) bit cell and a related SRAM array are provided. In one aspect, an SRAM cell is configured to perform an XNOR function on a first input value and a second input value. In another aspect, a number of the SRAM cells can be employed to form an SRAM array for supporting deep neural network and machine learning applications. The SRAM cell is coupled to a word line(s) and an inverted word line(s) that collectively define the first input value. The SRAM cell causes a voltage and/or current difference between a bit line(s) and a complementary bit line(s) coupled to the SRAM cell. By customizing the SRAM cell to enable the XNOR function and forming a binary neural network based on the SRAM array, it is possible to effectively implement computing-in-memory (CIM) for deep neural network and machine learning applications.