专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2018023695A1 HIGH-EFFICIENCY SWITCHED-CAPACITOR POWER SUPPLIES AND METHODS 审中-公开
标题翻译：高效率开关电容器电源和方法
公开(公告)号：WO2018023695A1
公开(公告)日：2018-02-08
申请号：PCT/CN2016/093520
申请日：2016-08-05
申请人： THE UNIVERSITY OF HONG KONG
发明人： XIONG, Song , TAN, Siew Chong , HUI, Shu Yuen, Ron
IPC分类号： H02M3/18
摘要： Switched capacitor (SC) converters with excellent voltage regulation, high conversion efficiency, and good suitability for a wide range of applications are provided. An SC converter can include at least two SC sub-circuits, and at least one of these SC sub-circuits can be of variable gain. One SC sub-circuit can convert the input voltage of the SC converter to an output voltage close to the desired output voltage value for the SC converter, and another SC sub-circuit having variable gain can convert the input voltage to an output voltage with a high resolution of small discrete voltage steps.
摘要翻译：开关电容（SC）转换器具有出色的电压调节，高转换效率，并且适用于广泛的应用。 SC转换器可以包括至少两个SC子电路，并且这些SC子电路中的至少一个可以具有可变增益。一个SC子电路可以将SC转换器的输入电压转换为接近SC转换器的期望输出电压值的输出电压，并且具有可变增益的另一个SC子电路可以将输入电压转换为具有高分辨率的小离散电压步骤。

2. 发明申请

WO2017066985A1 PLUG-AND-PLAY RIPPLE PACIFIER FOR DC VOLTAGE LINKS IN POWER ELECTRONICS SYSTEMS AND DC POWER GRIDS 审中-公开
标题翻译：用于电力电子系统和直流电网中的直流电压连接的插入和穿过式纹波放大器
公开(公告)号：WO2017066985A1
公开(公告)日：2017-04-27
申请号：PCT/CN2015/092649
申请日：2015-10-23
申请人： THE UNIVERSITY OF HONG KONG
发明人： LI, Sinan , LEE, Ting Leung, Albert , TAN, Siew Chong , HUI, Shu Yuen, Ron
IPC分类号： H02M1/15
CPC分类号： H02M1/15 , H02J1/02 , H02M7/217
摘要： In many power electronics systems, there is an intermediate DC-link stage for facilitating the power processing of different sources to their loads. A device called a plug-and-play ripple pacifier (RP) directly plugged into the DC-link, and actively removes undesired DC-link ripple, thereby eliminating the reliance on electrolytes capacitors for stabilizing the system and remove ripple. Importantly, the use of this device is non-invasive to the operation of its host systems, and requires no modification of existing hardware. It is suitable for the protection of DC utilities/systems and can also be used as a direct replacement of ripple-canceling E-Caps in power converters device.
摘要翻译：在许多电力电子系统中，存在用于促进不同电源对其负载的功率处理的中间DC链路级。一种称为即插即用波纹安抚器（RP）的设备直接插入直流链路，并主动消除不需要的直流链路纹波，从而消除了对电解质电容器的依赖，从而稳定系统并消除波纹。重要的是，该设备的使用对其主机系统的操作是非侵入性的，并且不需要修改现有的硬件。它适用于DC设备/系统的保护，也可以用作电源转换器设备中纹波消除电容器的直接替代品。

3. 发明申请

WO2015003611A1 ADAPTIVE AC AND/OR DC POWER SUPPLY 审中-公开
标题翻译：自适应交流和/或直流电源
公开(公告)号：WO2015003611A1
公开(公告)日：2015-01-15
申请号：PCT/CN2014/081820
申请日：2014-07-08
申请人： THE UNIVERSITY OF HONG KONG
发明人： TAN, Siew Chong , HUI, Shu Yuen , LEE, Chi Kwan , WU, Felix Fulih
IPC分类号： H02J3/00
CPC分类号： H02J11/00 , H02J3/1807 , H02J3/1814 , H02J3/1892 , H02J13/0075 , Y02E40/18 , Y02E40/30 , Y02E40/74 , Y02E60/7853 , Y04S10/22 , Y04S40/126
摘要： Embodiments of an adaptive power supply are disclosed for accommodating instances in which too much power is generated for a load demand and instances in which too little power is generated for a load demand.
摘要翻译：自适应电源的实施例被公开用于适应对于负载需求产生太多功率的情况以及对于负载需求而产生太少功率的情况。

4. 发明申请

WO2018107392A1 A SINGLE-STAGE SINGLE-INDUCTOR MULTIPLE-OUTPUT (SIMO) INVERTER TOPOLOGY WITH PRECISE AND INDEPENDENT AMPLITUDE CONTROL FOR EACH AC OUTPUT 审中-公开
公开(公告)号：WO2018107392A1
公开(公告)日：2018-06-21
申请号：PCT/CN2016/109910
申请日：2016-12-14
申请人： THE UNIVERSITY OF HONG KONG
发明人： LEE, Ting Leung, Albert , JIN, Weijian , LI, Sinan , TAN, Siew Chong , HUI, Shu Yuen, Ron
IPC分类号： H02M7/48
摘要： A system and a control method for generating multiple independent alternating current (AC) voltages from a direct current (DC) voltage source in a single-inductor multiple-output (SIMO) inverter are disclosed. The system comprising: a DC voltage source(101) for providing electrical energy; a front-stage DC-DC power converter(105) comprising exactly one inductor as an energy storage element for power conversion and a main switching element; a plurality of selectable output branches(106), wherein each output branch comprises an output selection switch(107), a resonant tank(110), and a transmitter coil(109), wherein the resonant tank converts output power of the DC-DC power converter into AC power for feeding the transmitter coil; and a controller(104) for determining ON/OFF states of the main switching element and the output selection switch of each of the output branches. The system and the method can provide simple, compact, scalable, and low-cost solutions by employing only a single inductor to drive multiple independent transmitting coils.

5. 发明申请

WO2016134527A1 POWER CONVERTER AND POWER CONVERSION METHOD 审中-公开
标题翻译：功率转换器和功率转换方法
公开(公告)号：WO2016134527A1
公开(公告)日：2016-09-01
申请号：PCT/CN2015/073371
申请日：2015-02-27
申请人： THE UNIVERSITY OF HONG KONG
发明人： XIONG, Song , TAN, Siew Chong , HUI, Shu Yuen Ron
IPC分类号： H02M3/335
CPC分类号： H02M3/07
摘要： A power converter comprising one or more switch blocks. Each switch block has: a plurality of switch-pairs each having two switches connected in series to each other; a plurality of primary nodes each interconnecting the switches in a respective switch-pair; and a plurality of secondary nodes, each switch-pair being connected in series to an adjacent switch-pair through a said secondary node to form a serial chain of switch-pairs, the secondary nodes including a secondary node at one end of said serial chain and a secondary node at another end of said serial chain. Each adjacent pair of said primary nodes is connectable to a flying capacitor. Each pair of said secondary nodes is connectable to one or more of the following: one or more bypass capacitors, and one or more other said switch blocks. The power converter further comprises a first terminal formed by any two of the secondary nodes in any one of the switch blocks, and a second terminal formed by any two of the secondary nodes in any one of the switch blocks.
摘要翻译：一种功率转换器，包括一个或多个开关块。每个开关块具有：多个开关对，每个开关对具有彼此串联连接的两个开关; 多个主节点，每个主节点在相应的交换机对中互连交换机; 以及多个次级节点，每个交换机对通过所述辅助节点串联连接到相邻的交换机对以形成串行链路对，所述辅助节点包括在所述串行链的一端的辅助节点以及在所述串行链的另一端的辅助节点。每个相邻的所述主节点对可连接到飞行电容器。每对所述次级节点可连接到以下中的一个或多个：一个或多个旁路电容器和一个或多个其它所述开关组件。功率转换器还包括由任何一个开关块中的任何二个次级节点形成的第一终端，以及由任何一个交换机块中的任何二个次要节点形成的第二终端。

6. 发明申请

WO2016074191A1 POWER CONTROLLER AND POWER CONTROL METHOD 审中-公开
标题翻译：功率控制器和功率控制方法
公开(公告)号：WO2016074191A1
公开(公告)日：2016-05-19
申请号：PCT/CN2014/090992
申请日：2014-11-13
申请人： THE UNIVERSITY OF HONG KONG
发明人： MOK, Kwan Tat , TAN, Siew Chong , HUI, Shu Yuen Ron
IPC分类号： H02J3/00
CPC分类号： H02M1/4208 , H02J3/18 , H02J3/382 , H02M5/293 , H02M7/219 , H02M7/5387 , H02M2001/0003 , H02M2001/0093 , H02M2001/4275 , H02M2005/2932 , Y02B70/126 , Y02E40/30
摘要： A power controller for an AC power converter connected in series with a load and receiving power from or delivering power to a power source, the power controller comprising: a radial control block controlling a radial component of an electrical parameter of the AC power converter; and a chordal control block controlling a chordal component of the electrical parameter of the AC power converter. Also provided is a power system comprising one or more loads each connected in series to a power converter each controlled by a power controller as described above. There is also provided a method of controlling an AC power converter connected in series with a load and receiving power from a power source, the method comprising: controlling a radial component of an electrical parameter of the AC power converter; and controlling a chordal component of the electrical parameter of the AC power converter.
摘要翻译：一种用于与负载串联并从电源接收电力或向电源供电的AC电力转换器的功率控制器，所述功率控制器包括：径向控制块，其控制所述AC功率转换器的电参数的径向分量; 以及弦控制块，其控制AC功率转换器的电参数的弦状分量。还提供了一种电力系统，其包括一个或多个负载，每个负载串联连接到功率转换器，每个功率转换器由如上所述的功率控制器控制。还提供了一种控制与负载串联并从电源接收功率的AC电力转换器的方法，所述方法包括：控制AC电力转换器的电参数的径向分量; 以及控制交流电力转换器的电参数的弦分量。

7. 发明申请

WO2016169022A1 AC-DC SINGLE-INDUCTOR MULTIPLE-OUTPUT LED DRIVERS 审中-公开
标题翻译： AC-DC单电源多路输出LED驱动器
公开(公告)号：WO2016169022A1
公开(公告)日：2016-10-27
申请号：PCT/CN2015/077290
申请日：2015-04-23
申请人： THE UNIVERSITY OF HONG KONG
发明人： GUO, Yue , LEE, Ting Leung , LI, Sinan , TAN, Siew Chong , LEE, Chi Kwan , HUI, Shu Yuen
IPC分类号： H05B33/08
CPC分类号： H05B33/0827 , H02M1/14 , H02M1/42 , H02M3/156 , H02M3/158 , H02M7/06 , H02M2001/009 , H05B33/0818 , H05B33/0866 , Y02B20/348
摘要： A single-stage AC-DC single-inductor multiple-output (SIMO) LED driver uses a single inductor (L) to drive multiple independent LED strings (34 1 -34 n ) with Power Factor Correction (PFC).The driver uses a diode bridge(20) to achieve initial AC to DC conversion. The output of the bridge (20) is provided to a buck converter whose output is shared with multiple LED strings by a time division multiplex circuit. Feedback is used to separately control the current supplied to each LED string by using a separate reference for each string and controlling the width of the current pulse provided to a string. Current balancing in every LED string can be achieved with the same voltage reference without the need for additional circuitry.
摘要翻译：单级AC-DC单电感多输出（SIMO）LED驱动器使用单个电感（L）通过功率因数校正（PFC）驱动多个独立LED串（34 1-34 n）。驱动器使用二极管桥（20）实现初始的交直流转换。桥（20）的输出被提供给降压转换器，其输出通过时分复用电路与多个LED串共享。反馈用于通过对每个串使用单独的参考来控制提供给每个LED串的电流，并控制提供给串的当前脉冲的宽度。每个LED串的电流平衡可以用相同的电压基准来实现，而不需要额外的电路。

8. 发明申请

WO2015180041A1 CORRELATED COLOUR TEMPERATURE CONTROL SYSTEM AND METHOD 审中-公开
标题翻译：相关色温控制系统及方法
公开(公告)号：WO2015180041A1
公开(公告)日：2015-12-03
申请号：PCT/CN2014/078552
申请日：2014-05-27
申请人： THE UNIVERSITY OF HONG KONG
发明人： CHEN, Huan Ting , TAN, Siew Chong , HUI, Shu Yuen Ron
IPC分类号： H05B37/02
CPC分类号： H05B33/0863 , F21V29/70 , F21Y2115/10 , H05B33/0845 , H05B33/086 , H05B33/0869
摘要： A correlated colour temperature control system (1) for a LED lighting system (2) having at least two LED sources (3, 4) with different correlated colour temperatures. The LED lighting system (2) has a combined correlated colour temperature resulting from the combination of the different correlated colour temperatures of the at least two LED sources (3, 4), and a combined luminous flux resulting from the combination of the luminous fluxes of the at least two LED sources (3, 4), with each LED source being supplied with a supply current. The correlated colour temperature control system (1) comprises a controller (5) to independently control one or both of the duty cycle and amplitude of each supply current, the duty cycle or amplitude of each supply current being varied by the controller in a non-linear relationship with the duty cycle or amplitude of at least one other of the supply currents, to generate a desired combined correlated colour temperature for the LED lighting system (2) at a desired combined luminous flux for the LED lighting system (3, 4). An associated method is also provided.
摘要翻译：一种用于具有不同相关色温的至少两个LED源（3,4）的LED照明系统（2）的相关色温控制系统（1）。 LED照明系统（2）具有由至少两个LED源（3,4）的不同相关色温的组合产生的组合的相关色温，以及由光束的光通量所述至少两个LED源（3,4），其中每个LED源被供应电源电流。相关色温控制系统（1）包括控制器（5），用于独立地控制每个电源电流的占空比和幅度中的一个或两个，每个电源电流的占空比或幅度由非控制器改变，与至少另一个电源电流的占空比或幅度线性关系，以便以LED照明系统（3,4）的期望的组合光通量为LED照明系统（2）生成期望的组合相关色温，。还提供了相关联的方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式