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    Multi-phase DC/DC boost converter
    1.
    发明授权
    Multi-phase DC/DC boost converter 有权
    多相DC / DC升压转换器

    公开(公告)号：US08228014B2

    公开(公告)日：2012-07-24

    申请号：US12512156

    申请日：2009-07-30

    申请人： Seok Jang ,  Christopher P. Henze ,  George R. Woody

    发明人： Seok Jang ,  Christopher P. Henze ,  George R. Woody

    IPC分类号： H02P31/00

    CPC分类号： H02M3/1584

    摘要： A method and an apparatus are provided for balancing current for each of a plurality of similar phases of a DC/DC boost converter. The method includes the step of measuring a voltage drop of each of the plurality of similar phases at predetermined times by measuring the voltage drop across each phase switching device when current is flowing through the switch. The method also includes the steps of calculating current information for each of the plurality of similar phases in response to the voltage drop measured for each of the plurality of similar phases and balancing current for each of the plurality of similar phases in response to the current information of each of the plurality of similar phases.

    摘要翻译： 提供了一种用于平衡DC / DC升压转换器的多个相似相位中的每一个的电流的方法和装置。 该方法包括以下步骤：当电流流过开关时，通过测量每个相位切换装置上的电压降来在预定时间测量多个相似相位中的每一个的电压降。 该方法还包括以下步骤：响应于针对多个相似相中的每一个测量的电压降以及响应于当前信息平衡多个相似相位中的每一个的电流而计算多个相似相位中的每一个的当前信息 的多个相似相中的每一个。

    Automotive electrical system for coupling power converters with a transformer
    2.
    发明授权
    Automotive electrical system for coupling power converters with a transformer 有权
    用于与变压器耦合电力转换器的汽车电气系统

    公开(公告)号：US08058743B2

    公开(公告)日：2011-11-15

    申请号：US12241398

    申请日：2008-09-30

    申请人： Keming Chen ,  Christopher P. Henze ,  George R. Woody

    发明人： Keming Chen ,  Christopher P. Henze ,  George R. Woody

    IPC分类号： B60L1/00

    CPC分类号： B60L1/00 ,  B60L2210/14 ,  Y02T10/7225 ,  Y10T307/406

    摘要： Systems and/or apparatus are provided for automotive electrical systems having power converters that are coupled by using a transformer. An electrical system comprises a boost converter, wherein a first winding of a transformer is coupled between the input node of the boost converter and a first reference node. The boost converter further includes a switch coupled between the first reference node and a second reference node and a diode coupled between the first reference node and the output node of the boost converter. An energy source is coupled between the input node and the second reference node and a first electrical load is coupled between the output node and the second reference node. The electrical system further comprises a voltage converter having an input coupled to a second winding of the transformer, and a second electrical load coupled to the output of the voltage converter.

    摘要翻译： 为具有通过使用变压器耦合的功率转换器的汽车电气系统提供系统和/或设备。 电气系统包括升压转换器，其中变压器的第一绕组耦合在升压转换器的输入节点和第一参考节点之间。 升压转换器还包括耦合在第一参考节点和第二参考节点之间的开关以及耦合在升压转换器的第一参考节点和输出节点之间的二极管。 能量源耦合在输入节点和第二参考节点之间，并且第一电负载耦合在输出节点和第二参考节点之间。 电气系统还包括电压转换器，其具有耦合到变压器的第二绕组的输入端和耦合到电压转换器的输出的第二电负载。

    Systems and methods for discharging bus voltage using semiconductor devices
    3.
    发明授权
    Systems and methods for discharging bus voltage using semiconductor devices 有权
    使用半导体器件对总线电压进行放电的系统和方法

    公开(公告)号：US08022569B2

    公开(公告)日：2011-09-20

    申请号：US12256808

    申请日：2008-10-23

    申请人： Keming Chen ,  Christopher P. Henze ,  Stephen Raiser ,  George R. Woody

    发明人： Keming Chen ,  Christopher P. Henze ,  Stephen Raiser ,  George R. Woody

    IPC分类号： B60L3/00 ,  H01H47/00 ,  H02J7/00

    CPC分类号： B60L3/0046 ,  B60L3/04 ,  Y10T307/76

    摘要： Systems and methods are provided for discharging a high-voltage bus using semiconductor devices. A discharge system for a first voltage rail and a second voltage rail comprises a first semiconductor device coupled to a first voltage rail and a second semiconductor device coupled between the first semiconductor device and a second voltage rail. A control circuit is coupled to the first semiconductor device and the second semiconductor device. In response to a discharge condition, the control circuit is configured to activate the first semiconductor device and gradually activate the second semiconductor device, such that the energy potential between the first voltage rail and the second voltage rail is gradually dissipated through the semiconductor devices.

    摘要翻译： 提供了使用半导体器件对高压总线进行放电的系统和方法。 用于第一电压轨和第二电压轨的放电系统包括耦合到第一电压轨的第一半导体器件和耦合在第一半导体器件与第二电压轨之间的第二半导体器件。 控制电路耦合到第一半导体器件和第二半导体器件。 响应于放电条件，控制电路被配置为激活第一半导体器件并逐渐激活第二半导体器件，使得第一电压轨和第二电压轨之间的能量电势通过半导体器件逐渐消散。

    Differential current detection
    5.
    发明授权
    Differential current detection 有权
    差分电流检测

    公开(公告)号：US07224559B2

    公开(公告)日：2007-05-29

    申请号：US10850769

    申请日：2004-05-21

    申请人： Christopher P. Henze ,  Rohit K. Tirumala

    发明人： Christopher P. Henze ,  Rohit K. Tirumala

    IPC分类号： H02H3/00

    CPC分类号： H02H3/332 ,  B60L3/0023 ,  B60L3/0069

    摘要： A detection circuit detects a difference between a source current and a return current. The detection circuit includes a constantly biased magnetic core through which conductors of the source and return currents extend, and a sense winding around the core. The sense winding carries an AC signal. A sensing circuit connected with the sense winding senses a change in small signal impedance of the sense winding relative to the core. This detection circuit can be used to protect people and equipment against accidental contact with high-voltage DC systems.

    摘要翻译： 检测电路检测源极电流和回流电流之间的差异。 检测电路包括恒定偏置的磁芯，源极和返回电流的导体通过该磁芯延伸，以及围绕芯的感测绕组。 感测绕组承载交流信号。 与感测绕组连接的感测电路感测感测绕组相对于芯的小信号阻抗的变化。 该检测电路可用于保护人员和设备免受高压直流系统的意外接触。

    Apparatus and method for obtaining power from a battery charger
    6.
    发明授权
    Apparatus and method for obtaining power from a battery charger 失效
    从电池充电器获取电力的装置和方法

    公开(公告)号：US5821755A

    公开(公告)日：1998-10-13

    申请号：US560357

    申请日：1995-11-17

    申请人： Christopher P. Henze

    发明人： Christopher P. Henze

    IPC分类号： H02J7/00 ,  H02M3/156 ,  G01N27/416 ,  H02J7/04 ,  H02M7/00

    CPC分类号： H02J7/0029 ,  H02M3/156 ,  Y10S320/10 ,  Y10S320/18

    摘要： An apparatus and method for testing a battery charger includes a converter having input terminals connectable to a battery charger for receiving a current, output terminals and a switching device for electrically connecting at least one of the input terminals to the output terminals. A load is connected to the output terminals. A controller controls the switching device to periodically connect the input terminals to the output terminals, and in a preferred embodiment, maintain a desired voltage across the input terminals.

    摘要翻译： 用于测试电池充电器的装置和方法包括具有可连接到电池充电器的输入端子的转换器，用于接收电流输出端子和用于将至少一个输入端子电连接到输出端子的开关装置。 负载连接到输出端子。 控制器控制开关装置周期性地将输入端子连接到输出端子，并且在优选实施例中，保持跨输入端子的期望电压。

    Isolated high voltage battery charger and integrated battery pack
    7.
    发明授权
    Isolated high voltage battery charger and integrated battery pack 有权
    隔离高压电池充电器和集成电池组

    公开(公告)号：US07253584B2

    公开(公告)日：2007-08-07

    申请号：US10637815

    申请日：2003-08-08

    申请人： James P. Souther ,  Eugene M. Steele ,  Karl D. Conroy ,  Raymond G. Radys ,  Christopher P. Henze

    发明人： James P. Souther ,  Eugene M. Steele ,  Karl D. Conroy ,  Raymond G. Radys ,  Christopher P. Henze

    IPC分类号： H02J7/00

    CPC分类号： B60L11/1851 ,  Y02T10/7005 ,  Y02T10/705

    摘要： Methods and apparatus are provided for charging a high-voltage battery of a hybrid electric vehicle. The high-voltage battery charging apparatus comprises a battery charger configured to provide electrical energy, a battery module configured to store the electrical energy provided by the battery charger, and a high-voltage bus coupled to the battery charger and the battery module, which is configured to transmit the electrical energy from the battery charger and battery module to the electrical system of the hybrid electric vehicle. In addition, the high-voltage battery charging apparatus comprises a bus contactor interposed between the high-voltage bus and the battery charger, which is bus contactor configured to provide a first substantial electrical isolation between the battery charger and the high-voltage bus during a charging period of the battery module. Furthermore, the high-voltage battery charging apparatus comprises an isolation mechanism interposed between the battery charger and the high-voltage bus and also interposed between battery charger and the battery module, which is configured to provide a second substantial electrical isolation between the battery charger, the battery module, and the high voltage bus during a non-charging period of the battery module.

    摘要翻译： 提供了用于对混合电动车辆的高压电池充电的方法和装置。 高电压电池充电装置包括被配置为提供电能的电池充电器，被配置为存储由电池充电器提供的电能的电池模块和耦合到电池充电器和电池模块的高压母线，其是 被配置为将电能从电池充电器和电池模块传输到混合电动车辆的电气系统。 此外，高电压电池充电装置包括插在高压母线和电池充电器之间的总线接触器，该总线接触器被配置为在电池充电器和高压母线之间提供第一实质电气隔离 电池模块的充电周期。 此外，高电压电池充电装置包括插入在电池充电器和高压母线之间并且还插入在电池充电器和电池模块之间的隔离机构，其被配置为在电池充电器和电池充电器之间提供第二实质电隔离， 电池模块和电池模块的非充电期间的高电压总线。

    Lamp power measurement circuit
    8.
    发明授权
    Lamp power measurement circuit 失效
    灯功率测量电路

    公开(公告)号：US06624600B1

    公开(公告)日：2003-09-23

    申请号：US10099596

    申请日：2002-03-13

    申请人： Christopher P. Henze

    发明人： Christopher P. Henze

    IPC分类号： G05F100

    CPC分类号： H05B41/3924 ,  H05B41/3921

    摘要： A lamp power measurement circuit measures average power delivered to a gas discharge lamp. The circuit includes a voltage sensor having a first measurement output representative of AC voltage across the lamp and a current sensor having a second measurement output representative of AC current through the lamp. A first absolute value circuit is coupled in series with the first measurement output and has a first absolute value output. A second absolute value circuit is coupled in series with the second measurement output and has a second absolute value output. A pulse width modulator modulates one of the first and second absolute value outputs with the other of the first and second absolute value outputs and has a pulse width modulated output. A low-pass filter is coupled in series with the pulse width modulated output and has a DC voltage output representative of average power dissipated through the lamp.

    摘要翻译： 灯功率测量电路测量输送到气体放电灯的平均功率。 电路包括电压传感器，其具有表示灯两端的AC电压的第一测量输出和具有表示通过灯的AC电流的第二测量输出的电流传感器。 第一绝对值电路与第一测量输出串联耦合并且具有第一绝对值输出。 第二绝对值电路与第二测量输出串联耦合并且具有第二绝对值输出。 脉冲宽度调制器利用第一和第二绝对值输出中的另一个调制第一绝对值输出和第二绝对值输出中的一个并具有脉宽调制输出。 低通滤波器与脉冲宽度调制输出串联耦合，具有代表通过灯消耗的平均功率的直流电压输出。

    Multiple input single-stage inductive charger
    9.
    发明授权
    Multiple input single-stage inductive charger 有权
    多输入单级感应充电器

    公开(公告)号：US06548985B1

    公开(公告)日：2003-04-15

    申请号：US10104138

    申请日：2002-03-22

    申请人： John G. Hayes ,  Christopher P. Henze ,  Ray G. Radys

    发明人： John G. Hayes ,  Christopher P. Henze ,  Ray G. Radys

    IPC分类号： H01M1046

    CPC分类号： H02M1/4258 ,  B60L11/1812 ,  B60L11/182 ,  B60L11/1829 ,  B60L2210/30 ,  B60L2210/40 ,  H02J7/022 ,  H02M1/10 ,  H02M3/337 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7241 ,  Y02T10/92 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/127 ,  Y02T90/14

    摘要： An inductive charger includes a rectifier that can be connected to both single- and three-phase power sources. The rectifier includes first, second and third legs that include first and second diodes. Alternately, the third leg includes first and second silicon-controlled rectifiers. A capacitor is connected across an output of the rectifier. An inverter is connected to the rectifier and the capacitor and includes a plurality of switching circuits. A series resonant tank circuit is connected to an output of the inverter. A charge coupler and an inductive inlet include a transformer and a parallel resonant tank circuit for coupling energy to a load. A controller is connected to the rectifier and the inverter. The controller generates drive signals for controlling the switching circuits. The inductive charger is capable of providing approximately 0.99 power factor from single-phase and 0.91 power factor at twice the output power from three-phase power sources.

    摘要翻译： 感应充电器包括可连接到单相和三相电源的整流器。 整流器包括包括第一和第二二极管的第一，第二和第三支脚。 或者，第三腿包括第一和第二硅控整流器。 电容器连接在整流器的输出端。 逆变器连接到整流器和电容器，并且包括多个开关电路。 串联谐振回路连接到逆变器的输出端。 电荷耦合器和感应入口包括变压器和用于将能量耦合到负载的并联谐振回路。 控制器连接到整流器和逆变器。 控制器产生用于控制开关电路的驱动信号。 感应充电器能够从三相电源的两倍输出功率提供约0.99功率因数，单相和0.91功率因数。