公开(公告)号：US20190089197A1

公开(公告)日：2019-03-21

申请号：US16131469

申请日：2018-09-14

申请人： Hengchun Mao ,  Xuezhong Jia

发明人： Hengchun Mao ,  Xuezhong Jia

IPC分类号： H02J50/12 ,  H01F38/14 ,  H02J7/02 ,  H02J7/00 ,  H01F27/36 ,  H01F27/38

摘要： A device has a plurality of coils arranged along a perimeter within the device, where each coil has a winding configured to be coupled to a power converter through a resonant capacitor, and forms a resonator with the resonant capacitor. The device has also a connection core which is magnetically coupled to the plurality of coils. Furthermore, the device has a plurality of power converters, where each power converter is coupled to one of the plurality of coils, and is configured such that a current flowing through the winding of the coil has the same frequency as other winding currents in the device, and the phase angle of the current is approximately equal to the space angle of the coil, so a rotating magnetic field is formed in a space around the device.

公开(公告)号：US09590495B2

公开(公告)日：2017-03-07

申请号：US13219513

申请日：2011-08-26

申请人： Dianbo Fu ,  Hengchun Mao ,  Bing Cai

发明人： Dianbo Fu ,  Hengchun Mao ,  Bing Cai

IPC分类号： G05F5/00 ,  H02M1/42 ,  H02M1/32

CPC分类号： H02M1/4208 ,  H02M1/32 ,  H02M1/4225 ,  H02M5/20 ,  H02M5/293 ,  Y02B70/126

摘要： An embodiment holdup time circuit of a bridgeless power factor correction circuit comprises a charge device, an energy storage apparatus and a discharge device. The charge device comprises a first terminal coupled to a bridgeless power factor correction circuit and a second terminal coupled to the energy storage apparatus. The discharge device comprises a first terminal coupled to the energy storage apparatus and a second terminal coupled to the bridgeless power factor correction circuit.

摘要翻译： 无桥功率因数校正电路的实施例保持时间电路包括充电装置，能量存储装置和放电装置。 充电装置包括耦合到无桥功率因数校正电路的第一端子和耦合到能量存储装置的第二端子。 放电装置包括耦合到能量存储装置的第一端子和耦合到无桥功率因数校正电路的第二端子。

公开(公告)号：US09088215B2

公开(公告)日：2015-07-21

申请号：US13156203

申请日：2011-06-08

申请人： Hengchun Mao ,  Dianbo Fu ,  Bing Cai

发明人： Hengchun Mao ,  Dianbo Fu ,  Bing Cai

IPC分类号： H05K7/00 ,  H02M3/158 ,  H02M3/00

CPC分类号： H02M3/158 ,  H01L21/4828 ,  H01L21/4842 ,  H01L23/49562 ,  H01L23/49575 ,  H01L23/49589 ,  H01L24/81 ,  H01L25/0655 ,  H01L25/0657 ,  H01L25/16 ,  H01L25/50 ,  H01L2225/06513 ,  H01L2225/06517 ,  H01L2924/1205 ,  H01L2924/1206 ,  H01L2924/1207 ,  H01L2924/13091 ,  H01L2924/14252 ,  H01L2924/1426 ,  H02M3/00 ,  H02M3/1588 ,  Y02B70/1466 ,  Y10T29/4913

摘要： An embodiment power converter package comprises a semiconductor die, an output inductor, a plurality of input capacitors and output capacitors. The semiconductor die, the output inductor and the plurality of capacitors are mounted on a lead frame and connected one to another through various pads on the lead frame. The semiconductor die comprises a high side switch, a low side switch and a driver. The power converter package is electrically coupled to an external pulse width modulation controller through a variety of input and output pads.

摘要翻译： 实施例的功率转换器封装包括半导体管芯，输出电感器，多个输入电容器和输出电容器。 半导体管芯，输出电感器和多个电容器安装在引线框架上，并通过引线框架上的各种焊盘彼此连接。 半导体管芯包括高侧开关，低侧开关和驱动器。 功率转换器封装通过各种输入和输出焊盘电耦合到外部脉宽调制控制器。

公开(公告)号：US20140266546A1

公开(公告)日：2014-09-18

申请号：US14187249

申请日：2014-02-22

申请人： Hengchun Mao

发明人： Hengchun Mao

IPC分类号： H01F27/28 ,  H01F41/04

CPC分类号： H01F27/2804 ,  H01F41/046 ,  H01F2027/2819 ,  Y10T29/49073

摘要： A package comprises a substrate with a plurality of metal tracks, a via hole formed in the substrate, wherein the sidewall of the via hole is partially plated and the via hole is filled with a magnetic material, and a first winding magnetically coupled to the via hole.

摘要翻译： 封装包括具有多个金属轨道的基板，形成在基板中的通孔，其中通孔的侧壁被部分地电镀，并且通孔填充有磁性材料，第一绕组磁耦合到通孔 孔。

公开(公告)号：US20130033786A1

公开(公告)日：2013-02-07

申请号：US13198178

申请日：2011-08-04

申请人： Hengchun Mao ,  Yan-Fei Liu ,  Renhua Wu

发明人： Hengchun Mao ,  Yan-Fei Liu ,  Renhua Wu

IPC分类号： H02H7/00

CPC分类号： H02M3/158 ,  H01R43/26 ,  H02H3/003 ,  H02H9/02 ,  H02H9/025 ,  H02M1/32 ,  H02M3/1582 ,  Y10T29/49117

摘要： An embodiment high efficiency power regulator comprises a three-terminal converter and a protection device. The three-terminal converter comprises a first terminal coupled to a positive terminal of an input voltage bus, a second terminal coupled to a positive terminal of an output voltage bus and a third terminal coupled to the protection device. The protection device comprises an inrush current limiting element connected in series with a reverse polarity protection device.

摘要翻译： 一个实施例的高效率功率调节器包括三端转换器和保护装置。 三端转换器包括耦合到输入电压总线的正端子的第一端子，耦合到输出电压总线的正端子的第二端子和耦合到保护装置的第三端子。 保护装置包括与反极性保护装置串联连接的浪涌电流限制元件。

公开(公告)号：US20120049819A1

公开(公告)日：2012-03-01

申请号：US12973521

申请日：2010-12-20

申请人： Hengchun Mao ,  Dianbo Fu ,  Bing Cai

发明人： Hengchun Mao ,  Dianbo Fu ,  Bing Cai

IPC分类号： G05F1/00

CPC分类号： H02M3/1582 ,  H02J1/102

摘要： A power system comprising a non-isolated voltage regulator configured to couple to an input voltage and produce an output voltage, wherein the non-isolated voltage regulator is in a power distribution system and configured to boost the input voltage when the input voltage is less than a minimum output voltage, to reduce the input voltage when the input voltage is greater than a maximum output voltage, and to pass-through the input voltage when the input voltage is greater than or equal to the minimum output voltage and less than or equal to the maximum output voltage.

摘要翻译： 一种电力系统，包括被配置为耦合到输入电压并产生输出电压的非隔离电压调节器，其中所述非隔离电压调节器在配电系统中并且被配置为当所述输入电压小于 最小输出电压，以在输入电压大于最大输出电压时降低输入电压，并且当输入电压大于或等于最小输出电压并且小于或等于 最大输出电压。

公开(公告)号：US06674658B2

公开(公告)日：2004-01-06

申请号：US10062639

申请日：2002-02-01

申请人： Hengchun Mao ,  Yimin Jiang

发明人： Hengchun Mao ,  Yimin Jiang

IPC分类号： H02M3335

CPC分类号： H02M3/33592 ,  Y02B70/1475

摘要： A power converter device using synchronous rectifiers and method for controlling operation thereof are provided. A first synchronous rectifier is coupled to the secondary transformer winding to pass a voltage induced at the secondary winding in response to an input voltage supplied to the primary transformer winding during an on-state of a main power switch. A first drive circuit is coupled to the gate terminal of the first synchronous rectifier to selectively activate and deactivate the first rectifier in correspondence with the respective on and off states of the main power switch based on a gate voltage supplied by the first drive circuit, with at least one circuit parameter being selected in the first drive circuit for maintaining the gate voltage within a predefined range regardless of variation in the level of the input voltage.

摘要翻译： 提供了一种使用同步整流器的电力转换装置及其控制方法。 第一同步整流器耦合到次级变压器绕组，以响应于在主电源开关的导通状态期间提供给初级变压器绕组的输入电压，传递在次级绕组处感应的电压。 第一驱动电路耦合到第一同步整流器的栅极端子，以基于由第一驱动电路提供的栅极电压与主电源开关的各自的导通和关断状态对应地选择性地激活和去激活第一整流器， 在第一驱动电路中选择至少一个电路参数，用于将栅极电压维持在预定范围内，而与输入电压电平的变化无关。

公开(公告)号：US06574124B2

公开(公告)日：2003-06-03

申请号：US10242558

申请日：2002-09-11

申请人： Feng Lin ,  Ning Sun ,  Hengchun Mao ,  Yimin Jiang

发明人： Feng Lin ,  Ning Sun ,  Hengchun Mao ,  Yimin Jiang

IPC分类号： H02M3335

CPC分类号： H02M3/1584 ,  H02M1/32 ,  H02M3/285 ,  H02M3/33569 ,  H02M3/33592 ,  Y02B70/1475

摘要： A power distribution system is provided including current sharing circuitry, current sensing and over-current protection. The system includes a plurality of power converter modules each having a current sharing signal terminal on an input side and power output terminals on an output side, the corresponding power output terminals of the several modules being connected together and adapted to power a common load; an interconnecting signal bus coupled across the current sharing signal terminals on the input side; a plurality of feedback circuits, each of which is associated with one of said modules, each feedback circuit including a comparator (error amplifier) for comparing a feedback voltage on the output side with a reference voltage to provide an error signal to the input side; the error signal conditioned to provide a current command signal to said signal bus, wherein the signal bus provides a common current command signal to drive the power converter modules.

摘要翻译： 提供了配电系统，包括电流共享电路，电流检测和过电流保护。 该系统包括多个功率转换器模块，每个功率转换器模块在输入侧具有电流共享信号端子和输出侧的功率输出端子，多个模块的相应功率输出端子连接在一起并适于为公共负载供电; 耦合在输入侧的电流共享信号端子上的互连信号总线; 多个反馈电路，每个反馈电路与所述模块中的一个相关联，每个反馈电路包括用于将输出侧的反馈电压与参考电压进行比较的比较器（误差放大器），以向输入侧提供误差信号; 所述误差信号被调节以向所述信号总线提供电流指令信号，其中所述信号总线提供公共电流指令信号以驱动所述功率转换器模块。

公开(公告)号：US06300818B1

公开(公告)日：2001-10-09

申请号：US09640352

申请日：2000-08-16

申请人： Hengchun Mao

发明人： Hengchun Mao

IPC分类号： H03K1778

CPC分类号： H02M3/156 ,  Y10S323/907

摘要： For use with a semiconductor switch that exhibits a temperature-dependent electrical characteristic and a current sense circuit that employs the characteristic of the switch to derive a switch current signal, a temperature compensation circuit, method of operation thereof and controller employing the same. In one embodiment, the circuit includes: (1) an electrical component, locatable in thermal communication with the switch and having a temperature-dependent electrical characteristic that bears an inverse relationship to the characteristic of the switch, that generates an intermediate signal based on an actual temperature of the switch and (2) a signal conditioning circuit, coupled to the electrical component, that scales the intermediate signal to yield a compensation signal that counteracts temperature-dependent variations in the switch current signal.

摘要翻译： 用于与温度相关的电气特性的半导体开关和采用开关特性导出开关电流信号的电流检测电路，温度补偿电路，其操作方法和采用该开关电流信号的控制器。 在一个实施例中，电路包括：（1）电气部件，其可定位成与开关热连通，并且具有与开关特性成反比关系的与温度相关的电特性，该特性产生基于 开关的实际温度和（2）耦合到电气部件的信号调节电路，其缩放中间信号以产生抵消开关电流信号中温度相关变化的补偿信号。

公开(公告)号：US06191564B1

公开(公告)日：2001-02-20

申请号：US09449047

申请日：1999-11-24

申请人： Hengchun Mao

发明人： Hengchun Mao

IPC分类号： G05F110

CPC分类号： H02M1/4225 ,  Y02B70/126 ,  Y02P80/112

摘要： A power factor correcting eletrical converter apparatus receives an alternating electrical input signal from a power source. The apparatus preferably includes an input tracking circuit connected with the power source for tracking the input signal and providing the input signal at an input tracking node. The converter apparatus includes a rectifying circuit connected with the power source for receiving the input signal and generating a rectified input signal, and a filtering circuit connected with the rectifying circuit to filter and smooth the rectified input signal. An input sensing circuit is connected with the input tracking circuit for receiving the input signal and generating an input-indicating signal at an input-sensing node. An output circuit is connected with the filtering circuit for delivering the rectified boost signal to a load. The output circuit senses an electrical parameter associated with the load to produce an output-indicating signal at an output-sensing node. A feedback circuit is connected with the input-sensing node and with the output-sensing node for receiving the input-indicating signal and the output-indicating signal and generating a gating signal. The output circuit responds to the gating signal to switchingly control connection with the load. The input sensing circuit or the feedback circuit may be configured to impose a delay which causes the input-indicating signal to be out of phase with the input signal. The phase shift reduces input current distortion and increases input power factor.

摘要翻译： 功率因数校正电路转换器装置从电源接收交流电输入信号。 该装置优选地包括与电源连接的输入跟踪电路，用于跟踪输入信号并在输入跟踪节点处提供输入信号。 转换器装置包括与电源连接的整流电路，用于接收输入信号并产生整流输入信号，以及与整流电路连接的滤波电路，对整流输入信号进行滤波和平滑处理。 输入检测电路与输入跟踪电路连接，用于接收输入信号并在输入感测节点处产生输入指示信号。 输出电路与滤波电路连接，用于将整流的升压信号传送到负载。 输出电路感测与负载相关联的电参数以在输出感测节点处产生输出指示信号。 反馈电路与输入感测节点和输出感测节点连接，用于接收输入指示信号和输出指示信号并产生选通信号。 输出电路响应门控信号，以切换控制与负载的连接。 输入感测电路或反馈电路可以被配置为施加使输入指示信号与输入信号异相的延迟。 相移可以降低输入电流失真并增加输入功率因数。