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公开(公告)号：US06025999A
公开(公告)日：2000-02-15
申请号：US190953
申请日：1998-11-12
CPC分类号： H02M7/4807 , H02M3/33561 , H02M2001/007 , H02M2001/009
摘要： A power supply and a method of operating the same. In one embodiment, the power supply includes: (1) a DC-DC converter having an isolation transformer that conveys an alternating voltage of about a first frequency between a primary winding and at least one secondary winding thereof and (2) a four-quadrant inverter, coupled to one of the at least secondary winding, that converts a portion of the alternating voltage into a waveform having about a second frequency that is less than the first frequency, including: (2a) a bi-directional switch, coupled between an input and an output of the four-quadrant inverter and (2b) a controller, coupled to the switch, that activates the switch to couple the input to the output during a portion of a switching cycle of the alternating voltage to change voltages in the waveform.
摘要翻译： 电源及其操作方法。 在一个实施例中，电源包括：（1）具有隔离变压器的DC-DC转换器，其在初级绕组和至少一个次级绕组之间传送大约第一频率的交流电压，以及（2）四象限 逆变器，耦合到所述至少次级绕组中的一个，其将所述交流电压的一部分转换成具有小于所述第一频率的约第二频率的波形，所述第二频率包括：（2a）双向开关， 输入和四象限逆变器的输出，以及（2b）耦合到开关的控制器，其在交流电压的开关周期的一部分期间激活开关以将输入耦合到输出，以改变波形中的电压 。
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2.发明授权公开(公告)号：US06198177B1
公开(公告)日：2001-03-06
申请号：US09479514
申请日：2000-01-07
IPC分类号： H02J700
CPC分类号： H02M3/33584 , H02J9/062 , H02M2001/009 , Y10T307/615 , Y10T307/625
摘要： A power supply that provides a source of backup AC voltage and a method of operating thereof. In one embodiment, the power supply includes a transformer having main power and backup power windings and a secondary winding. The power supply also includes multiple stages, namely, (1) a primary power stage coupled to the main power winding, (2) a backup power stage coupled to the backup power winding and having a backup battery, one of the primary and backup power stages acting as a current fed source and (3) an AC power stage, coupled to the secondary winding, that provides a source of AC voltage. The power supply is operable in a normal mode of operation in which the primary power stage supplies power to the secondary winding and further supplies power to the backup power winding to allow the backup power stage to charge the backup battery. The power supply is also operable in a backup mode of operation in which the backup power stage transfers power from the backup battery to the secondary winding via the backup power winding.
摘要翻译： 提供备用交流电压源的电源及其操作方法。 在一个实施例中，电源包括具有主电源和备用电源绕组的变压器和次级绕组。 电源还包括多级，即（1）耦合到主电源绕组的主功率级，（2）备用功率级，耦合到备用电源绕组并具有备用电池，主电源和备用电源之一 作为电流馈电源的级和（3）耦合到次级绕组的AC功率级，其提供AC电压源。 电源可在正常操作模式中操作，其中主功率级向次级绕组提供电力，并且进一步向备用功率绕组供电以允许备用功率级对备用电池充电。 电源还可在备用工作模式下工作，其中备用电源级通过备用电源绕组将备用电池的电力传送到次级绕组。
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3.发明授权
公开(公告)号：US6038147A
公开(公告)日：2000-03-14
申请号：US191441
申请日：1998-11-12
CPC分类号： H02M7/4807 , H02M3/33561
摘要： A power supply and method of operation thereof. In one embodiment, the power supply includes: (1) a primary side power switch, (2) an isolation transformer having a primary winding coupled to the primary side power switch, the primary side power switch conducting intermittently to transfer current from an input of the power supply to the isolation transformer, (3) a secondary side power switch, coupled to a secondary winding of the isolation transformer, that is operable to conduct within a conduction period of the primary side power switch to transfer current from the isolation transformer to an output of the power supply, a portion of the current being contained within the power supply during a nonconduction period of the secondary side power switch and (4) a capacitor, coupled to the secondary side power switch, that, circulates the portion toward the output during the nonconduction period.
摘要翻译： 电源及其操作方法。 在一个实施例中，电源包括：（1）初级侧电源开关，（2）隔离变压器，其具有耦合到初级侧电源开关的初级绕组，所述初级侧电源开关间断地传导电流从 隔离变压器的电源，（3）耦合到隔离变压器的次级绕组的次级侧电源开关，其可操作以在初级侧电源开关的导通时段内传导，以将电流从隔离变压器传输到 电源的输出，在次级侧电源开关的非导通期间，电流的一部分被包含在电源内;以及（4）耦合到次级侧电源开关的电容器，其将该部分朝向 产量在非传导期。
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4.发明授权Switching controller for a buck+boost converter and method of operation thereof 失效降压+升压转换器的开关控制器及其操作方法
公开(公告)号：US6037755A
公开(公告)日：2000-03-14
申请号：US111010
申请日：1998-07-07
CPC分类号： H02M3/1582 , G05F1/62
摘要： For use in a buck+boost DC/DC power converter having first and second switches, a switching controller, a method of controlling the first and second switches and buck+boost DC/DC power converters employing the switching controller or the method. In one embodiment, the switching controller includes: (1) a regulation circuit that provides a drive signal and (2) a drive signal generator, coupled to the regulation circuit, that generates a pulse of fixed duration based on the drive signal and provides the pulse and the drive signal to the first and second switches. In another embodiment, the switching controller further includes a comparison circuit that compares an input voltage with an output voltage and generates a control signal based thereon to a drive signal generator that routes a pulse and a drive signal to the first and second switches.
摘要翻译： 用于具有第一和第二开关的降压+升压DC / DC电力转换器，开关控制器，采用开关控制器或方法控制第一和第二开关和降压+升压DC / DC电力转换器的方法。 在一个实施例中，切换控制器包括：（1）提供驱动信号的调节电路和（2）耦合到调节电路的驱动信号发生器，其基于驱动信号产生固定持续时间的脉冲，并且提供 脉冲和驱动信号到第一和第二开关。 在另一实施例中，切换控制器还包括比较电路，其将输入电压与输出电压进行比较，并且基于驱动信号发生器产生控制信号，所述驱动信号发生器将脉冲和驱动信号传送到第一和第二开关。
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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
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.
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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
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。
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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
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。
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8.发明申请High Density Packaging for Efficient Power Processing with a Magnetic Part 审中-公开高密度包装，用于磁性部件的高效电源处理公开(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
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。
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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。
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10.发明申请High Efficiency High Power Density Power Architecture Based on Buck-Boost Regulators with a Pass-Through Band 有权基于具有通过频带的降压 - 升压型稳压器的高效率高功率密度电源架构公开(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。
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