公开(公告)号：US06169667A

公开(公告)日：2001-01-02

申请号：US09160414

申请日：1998-09-25

Applicant: Rui Liu

Inventor： Rui Liu

IPC: H02M3335

CPC classification number: H02M3/33576 ,  H02M3/33561 ,  H02M2001/0032 ,  Y02B70/16

Abstract: 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.

Abstract translation: 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

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

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

IPC: H02H9/00 ,  H02H7/125

CPC classification number: H02H9/001 ,  H02H9/005 ,  Y10S323/908

Abstract: 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.

Abstract translation: 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

Applicant: Marco A. Davila, Jr. ,  Yimin Jiang ,  Rui Liu

Inventor： Marco A. Davila, Jr. ,  Yimin Jiang ,  Rui Liu

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

CPC classification number: H02M7/08 ,  H02M3/337

Abstract: 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.

Abstract translation: 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

Applicant: Richard R. Garcia ,  Rui Liu

Inventor： Richard R. Garcia ,  Rui Liu

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

CPC classification number: H02M1/36 ,  H02M3/3376

Abstract: 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.

Abstract translation: 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

Applicant: Rui Liu

Inventor： Rui Liu

IPC: H02M3/335 ,  H02H7/122

CPC classification number: H02M3/33576

Abstract: 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.

Abstract translation: 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

Applicant: Wen-Jian Gu ,  Rui Liu

Inventor： Wen-Jian Gu ,  Rui Liu

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

CPC classification number: H02M1/44 ,  H02M1/4208 ,  H02M5/225 ,  H05B41/28 ,  Y02B70/126

Abstract: 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.

Abstract translation: 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

Applicant: Rui Liu

Inventor： Rui Liu

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

CPC classification number: H02M1/34 ,  H02M3/33576 ,  H02M2001/342 ,  Y02B70/1491

Abstract: 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.

Abstract translation: 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：US11872471B2

公开(公告)日：2024-01-16

申请号：US17735370

申请日：2022-05-03

Applicant: Wen-Kuei Liu ,  Hsiu-Feng Chen ,  Chao-Hsuan Liu ,  Yu-Chun Liu ,  Yi-Shan Liu ,  Yu-Cheng Liu ,  Yan-Rui Liu

Inventor： Wen-Kuei Liu ,  Hsiu-Feng Chen ,  Chao-Hsuan Liu ,  Yu-Chun Liu ,  Yi-Shan Liu ,  Yu-Cheng Liu ,  Yan-Rui Liu

IPC: A63C17/14 ,  F16D59/02 ,  F16D59/00 ,  F16D121/14

CPC classification number: A63C17/1418 ,  F16D59/00 ,  F16D2121/14

Abstract: A braking mechanism of a wheeled device is provided, including: a main body, configured to be connected to the wheeled device including at least one wheel; an adjusting member, disposed on the main body and including a rod and a first abutting member adjustably positioned on the rod; a braking member, movably disposed on the main body; and an elastic member, abutted between the first abutting member and the braking member so that the braking member is biased by the force of the elastic member toward the at least one wheel to frictionally contact the at least one wheel.

公开(公告)号：US08623534B2

公开(公告)日：2014-01-07

申请号：US12889420

申请日：2010-09-24

Applicant: Rui Liu ,  Gang Cheng ,  Meng-Hua He ,  Jia-Ning Huang ,  Te-Sheng Jan ,  Yu-Tao Chen ,  Chun-Che Yen

Inventor： Rui Liu ,  Gang Cheng ,  Meng-Hua He ,  Jia-Ning Huang ,  Te-Sheng Jan ,  Yu-Tao Chen ,  Chun-Che Yen

IPC: H01M2/10

CPC classification number: H01M2/1055 ,  E05C19/06 ,  H01M2/1022

Abstract: An annular device includes an annular main body, a battery mounting portion, and a battery cover. The battery mounting portion protrudes from an inner surface of the main body, and includes a first arcuate element and a second arcuate element opposite to each other. The battery cover is operable to clasp the battery mounting portion, and includes a first arcuate member and a second arcuate member opposite to each other. The first arcuate member clasps the first arcuate surface, and the second arcuate member clasps the second arcuate surface.

Abstract translation: 环形装置包括环形主体，电池安装部分和电池盖。 电池安装部从主体的内表面突出，并且包括彼此相对的第一弓形元件和第二弓形元件。 电池盖可操作地扣住电池安装部分，并且包括彼此相对的第一弓形构件和第二弓形构件。 第一弧形构件夹住第一弧形表面，并且第二弓形构件扣住第二弧形表面。

公开(公告)号：US20130225003A1

公开(公告)日：2013-08-29

申请号：US13405231

申请日：2012-02-24

Applicant: ZHU-RUI LIU

Inventor： ZHU-RUI LIU

IPC: H01R24/28

CPC classification number: H01R27/02

Abstract: A card connector for receiving a micro-SIM card and a micro-SD card therein includes an insulating housing, a plurality of signal terminals and conductive terminals, and a supporting tray. The insulating housing defines an accommodating chamber. The signal terminals are disposed in the insulating housing with contact portions thereof projecting into the accommodating chamber. The conductive terminals are disposed in the insulating housing with touching portions thereof projecting into the accommodating chamber. The supporting tray defines a first receiving space and a second receiving space for receiving the micro-SIM card and the micro-SD card therein respectively. The supporting tray together with the micro-SIM card and the micro-SD card is inserted into the accommodating chamber. Bottoms of the first receiving space and second receiving space are opened freely to make the micro-SIM card electrically contact with the contact portions and the micro-SD card electrically contact with the touching portions.

Abstract translation: 用于在其中接收微型SIM卡和微型SD卡的卡连接器包括绝缘外壳，多个信号端子和导电端子以及支撑托盘。 绝缘壳体限定容纳室。 信号端子设置在绝缘壳体中，其接触部分突出到容纳室中。 导电端子设置在绝缘壳体中，其接触部分突出到容纳室中。 支撑托盘限定第一容纳空间和用于分别在其中接收微型SIM卡和微型SD卡的第二容纳空间。 将支撑托盘与微型SIM卡和微型SD卡一起插入容纳室中。 第一接收空间和第二接收空间的下部自由地打开，以使微型SIM卡与接触部分电接触，并且微型SD卡与接触部分电接触。