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1. 发明申请

WO2020239221A1 INTEGRATED COMPONENT AND POWER SWITCHING DEVICE 审中-公开
公开(公告)号：WO2020239221A1
公开(公告)日：2020-12-03
申请号：PCT/EP2019/064069
申请日：2019-05-29
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： HU, Zhixiang , LIN, Yujian , LIU, Zhihua , HOENE, Eckart , TAN, Wei
IPC分类号： H01L23/50 , H01L23/538 , H01L23/5389 , H02M1/0058 , H02M3/003 , H02M3/335 , B70
摘要： The present invention provides an integrated device, and a power switching device comprising the integrated device. The integrated device comprises a substrate, a die arranged inside the substrate, at least one capacitor arranged on a surface of the substrate, wherein the die and the at least one capacitor are electrically connected. The power switching device comprises at least one integrated device according to the aforementioned embodiments of the present invention. The compact design of the integrated device enables a high frequency, high efficiency, high power density power switching device.

2. 发明申请

WO2018137752A1 POWER SUPPLY AND POWER SUPPLY METHOD WITH CIRCULATION CURRENT COMPENSATION 审中-公开
公开(公告)号：WO2018137752A1
公开(公告)日：2018-08-02
申请号：PCT/EP2017/051370
申请日：2017-01-24
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FANG, Xiaoting
发明人： FANG, Xiaoting , LIU, Zhihua
IPC分类号： H02M1/12 , H02M1/40 , H02M7/81 , H02M7/493 , H02M7/5387
摘要： A power supply (1) for generating an output signal (OUT) is provided. The power supply (1) comprises a first inverter leg (11) and a second inverter leg (12), respectively adapted to generate a first pulse width modulation signal (PWM1) and a second pulse width modulation signal (PWM2) by modulating an input DC voltage (IN). Moreover, the power supply (1) comprises a phase shifter (120), which is adapted to generate a provisional second pulse width modulation signal (PWM2') by phase shifting a signal (PWM1CTRL), which the first pulse width modulation signal (PWM1) is derived from. Furthermore, the power supply (1) comprises a compensator (121), which is adapted to determine the second pulse width modulation signal (PWM2) from the provisional second pulse width modulation signal (PWM2'). Especially, the compensator (121) adds a compensation signal during the generating of the second pulse width modulation signal (PWM2). Finally, the power supply (1) comprises a coupled inductor (13), which is adapted to combine the first pulse width modulation signal (PWM1) and the second pulse width modulation signal (PWM2) to form the output signal (OUT).

3. 发明申请

WO2015055139A1 APPARATUS AND METHOD FOR HIGH EFFICIENCY RESONANT CONVERTERS 审中-公开
标题翻译：高效谐振转换器的装置和方法
公开(公告)号：WO2015055139A1
公开(公告)日：2015-04-23
申请号：PCT/CN2014/088828
申请日：2014-10-17
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： CHEN, Daoshen , DAI, Heping , LIU, Xujun , LIU, Zhihua , YE, Liming , FU, Dianbo , LIU, Ce , CAI, Bing
IPC分类号： H02M3/335 , H02M3/28
CPC分类号： H02M3/33507 , H02M1/14 , H02M3/156 , H02M3/22 , H02M3/325 , H02M3/33523 , H02M3/33569 , H02M3/33576 , H02M3/33592 , H02M3/337 , H02M3/3376 , H02M2001/0009 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
摘要： A converter comprises an input stage coupled to a power source, wherein the input stage comprises a plurality of power switches, a resonant tank coupled to the plurality of power switches, a transformer coupled to the resonant tank, an output stage coupled to the transformer, an efficiency point tracking indicator coupled to the converter, a detector coupled to the efficiency point tracking indicator and a control circuit configured to receive an efficiency point tracking signal from the detector and adjust a switching frequency of the power switches based upon the efficiency point tracking signal.
摘要翻译： A转换器包括耦合到电源的输入级，其中所述输入级包括多个功率开关，耦合到所述多个功率开关的谐振槽，耦合到所述谐振回路的变压器，耦合到所述变压器的输出级，耦合到转换器的效率点跟踪指示器，耦合到效率点跟踪指示器的检测器和被配置为从检测器接收效率点跟踪信号的控制电路，并且基于效率点跟踪信号调整功率开关的开关频率。

4. 发明授权

EP3050205B1 APPARATUS AND METHOD FOR HIGH EFFICIENCY RESONANT CONVERTERS 有权转让
公开(公告)号：EP3050205B1
公开(公告)日：2020-04-22
申请号：EP14853659.2
申请日：2014-10-17
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Daoshen , DAI, Heping , LIU, Xujun , LIU, Zhihua , YE, Liming , FU, Dianbo , LIU, Ce , CAI, Bing
IPC分类号： H02M3/335 , H02M3/28 , H02M1/00 , H02M3/337

5. 发明公开

EP3566290A1 POWER SUPPLY AND POWER SUPPLY METHOD WITH CIRCULATION CURRENT COMPENSATION 有权转让
公开(公告)号：EP3566290A1
公开(公告)日：2019-11-13
申请号：EP17705021.8
申请日：2017-01-24
申请人： Huawei Technologies Co., Ltd.
发明人： FANG, Xiaoting , LIU, Zhihua
IPC分类号： H02M1/12 , H02M1/40 , H02M7/81 , H02M7/493 , H02M7/5387

6. 发明授权

EP2882209B1 MOCN CELL COMMUNICATION METHOD AND DEVICE 有权
标题翻译： MOCN小区通信方法及装置
公开(公告)号：EP2882209B1
公开(公告)日：2017-02-08
申请号：EP12890141.0
申请日：2012-12-24
申请人： Huawei Technologies Co., Ltd.
发明人： YAN, Haidong , LIU, Zhihua
IPC分类号： H04W48/10 , H04W48/18 , H04W72/10 , H04W16/10 , H04W48/12 , H04W16/14 , H04W28/16 , H04W72/04
CPC分类号： H04W48/10 , H04W16/10 , H04W16/14 , H04W28/16 , H04W48/12 , H04W48/18 , H04W72/04 , H04W72/10

7. 发明公开

EP2733727A1 QUAD FLAT NON-LEADED PACKAGE AND PACKAGING METHOD THEREOF 有权
标题翻译： VERPACKUNGSVERFAHRENFÜRQUAD-FLACH-GEHÄUSEOHNE ANSCHLUSSLEITUNGEN
公开(公告)号：EP2733727A1
公开(公告)日：2014-05-21
申请号：EP13756799.6
申请日：2013-04-25
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Kai , LIU, Zhihua , JIANG, Ran
IPC分类号： H01L21/48 , H01L23/488
CPC分类号： H01L21/4828 , H01L21/4825 , H01L21/4832 , H01L23/3107 , H01L23/49517 , H01L23/49805 , H01L24/48 , H01L24/73 , H01L24/85 , H01L2224/32245 , H01L2224/48249 , H01L2224/73265 , H01L2924/00014 , H01L2924/12042 , H01L2224/48247 , H01L2924/00012 , H01L2924/00 , H01L2224/45099 , H01L2224/45015 , H01L2924/207
摘要： The present invention discloses a method for packaging a quad flat non-leaded package body, and a package body, and pertains to the field of packaging technologies. The method includes: etching an upper surface of a metal plate to process a desired groove and form a bond wire bench, a component bench, and a bump; processing the bump to reach a preset height, assembling a component on the component bench, and connecting the component and the bond wire bench; packaging the processed metal plate in plastic to form a package body, and exposing the surface of the processed bump on an upper surface of the package body to form a top lead; and etching a lower surface of the package body to process a desired bottom lead and obtain a quad flat non-leaded package body. In the present invention, a QFN package body with a top lead is formed, and therefore, large passive components can be stacked on the QFN package body while the high electrical performance and heat dissipation performance of the QFN package are exerted; the structure of the package body is simplified while the reliability of internal and external welding joints is improved; in addition, a plurality of components can be stacked through the top lead to overcome the limitations of component stacking.
摘要翻译：本发明公开了一种用于包装四边形无铅包装体和包装体的方法，涉及包装技术领域。该方法包括：蚀刻金属板的上表面以处理所需的沟槽并形成接合线台，组件台和凸块; 处理凸块以达到预设高度，在组件台上组装组件，以及连接组件和焊接线架; 将经处理的金属板包装在塑料中以形成包装体，并将经处理的凸块的表面暴露在包装体的上表面上以形成顶部引线; 并且蚀刻封装体的下表面以处理期望的底部引线并获得四边形的非引线封装体。在本发明中，形成具有顶部引线的QFN封装体，因此可以在QFN封装体上堆叠大的无源元件，同时施加QFN封装的高电气性能和散热性能; 简化了封装体的结构，提高了内外焊接头的可靠性; 此外，可以通过顶部引线堆叠多个部件以克服部件堆叠的限制。

8. 发明公开

EP4404665A1 SCHEDULING METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4404665A1
公开(公告)日：2024-07-24
申请号：EP22882489.2
申请日：2022-09-07
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Zhihua , FAN, Wenda , YANG, Jian , YANG, Bing
IPC分类号： H04W72/04
CPC分类号： H04W72/51 , H04W72/04
摘要： This application provides a scheduling method and an apparatus. The method includes: determining a quantity of symbols occupied by a first physical downlink control channel of a first cell in a time unit, where the symbol represents a unit of the time unit; and determining, based on the quantity of symbols, a 1st symbol occupied by a physical downlink shared channel of a second cell in the time unit, where the first cell and the second cell dynamically share a same spectrum resource. According to the foregoing method, when the first cell and the second cell share the same spectrum resource by using a DSS technology, a network device may adjust, based on the quantity of symbols occupied by the first PDCCH of the first cell, the 1st symbol occupied by the PDSCH of the second cell, to implement flexible resource allocation, and improve resource utilization and spectral efficiency of the second cell.

9. 发明公开

EP3136578A1 POWER SOURCE MANAGEMENT METHOD AND POWER SOURCE 有权转让
标题翻译： STROMQUELLENVERWALTUNGSVERFAHREN UND STROMQUELLE
公开(公告)号：EP3136578A1
公开(公告)日：2017-03-01
申请号：EP15810506.4
申请日：2015-01-06
申请人： Huawei Technologies Co. Ltd.
发明人： HOU, Zhaozheng , FAN, Xiaodong , CHENG, Jiebin , LIU, Zhihua , ZHANG, Xuezhen
IPC分类号： H02M3/335
CPC分类号： H02M3/33546 , H02M1/08 , H02M3/33584 , H02M3/33592 , H02M3/3376 , H02M2001/0009 , H02M2001/0016 , H02M2001/0025 , Y02B70/1475
摘要： A power source management method and a power source are provided. The method includes: comparing a feedforward control signal with a feedback control signal by using a logic control circuit, outputting the signals after the comparison, and performing matching, to obtain control signals of switching transistors of a full-bridge topology circuit (S301); and adjusting the control signals of the switching transistors of the full-bridge topology circuit by using the logic control circuit, so that operating duty cycles of two bridge arms on a primary side match, are symmetric within one switch period of the logic control circuit, or match for a long time, to prevent transformer biasing (S302). The power source management method and the power source can achieve good feedforward performance, suppress input disturbance, and additionally prevent transformer biasing, which ensures that the power source works normally.
摘要翻译：提供电源管理方法和电源。该方法包括：通过使用逻辑控制电路比较前馈控制信号和反馈控制信号，输出比较后的信号并进行匹配，以获得全桥拓扑电路的开关晶体管的控制信号（S301）; 以及通过使用逻辑控制电路来调整全桥拓扑电路的开关晶体管的控制信号，使得初级侧的两个桥臂的工作占空比匹配在逻辑控制电路的一个开关周期内是对称的，或匹配很长时间，以防止变压器偏置（S302）。电源管理方法和电源可以实现良好的前馈性能，抑制输入干扰，另外防止变压器偏置，保证电源工作正常。

10. 发明公开

EP2200164A1 DIRECT CURRENT CONVERTER POWER SUPPLY APPARATUS AND METHOD FOR IMPROVING DIRECT CURRENT CONVERTER POWER SUPPLY APPARATUS 有权
标题翻译：直流电流转换器电源装置及改善直流电流转换器电源装置的方法
公开(公告)号：EP2200164A1
公开(公告)日：2010-06-23
申请号：EP08757799.5
申请日：2008-06-20
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Zhihua
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A Direct Current to Direct Current (DC-DC) power supply apparatus includes: a transformer; a transformer primary circuit; a transformer secondary circuit, which includes a rectifier circuit capable of transformation and configured to convert a square wave voltage output by the transformer into a DC output voltage; and a control unit, which controls the transformer secondary circuit to stabilize the DC output voltage into a required value according to the DC output voltage. A method for improving a DC-DC power supply apparatus includes: coupling a rectifier circuit to a secondary winding of a transformer to convert the square-wave voltage output by the transformer into a DC output voltage; and monitoring the DC output voltage, and stabilizing the DC output voltage into a required value according to the DC output voltage.
摘要翻译：直流到直流（DC-DC）电源装置包括：变压器; 变压器初级电路; 变压器次级电路，其包括能够变换并且被配置为将由变压器输出的方波电压转换成DC输出电压的整流器电路; 以及控制单元，其控制变压器次级电路以根据DC输出电压将DC输出电压稳定到所需值。一种改进DC-DC电源装置的方法包括：将整流器电路耦合到变压器的次级绕组，以将由变压器输出的方波电压转换为DC输出电压; 并监测直流输出电压，并根据直流输出电压将直流输出电压稳定在所需值。

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