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143 条记录 (耗时 0.048 秒)

    FIELD REGULATOR
    61.
    发明申请
    FIELD REGULATOR 审中-公开
    现场调节器

    公开(公告)号：US20170032878A1

    公开(公告)日：2017-02-02

    申请号：US15303718

    申请日：2015-04-16

    申请人： MINE SITE TECHNOLOGIES PTY LTD

    发明人： Peter John SWEENEY ,  Martin Christopher WILDT

    IPC分类号： H01F19/04 ,  H01F27/24 ,  H01F27/28 ,  G01D5/20 ,  H03K3/017

    CPC分类号： H01F19/04 ,  G01D5/2006 ,  H01F21/08 ,  H01F27/24 ,  H01F27/28 ,  H02M7/5387 ,  H02M2007/4818 ,  H03K3/017 ,  H03K17/954 ,  Y02B70/1441

    摘要： The invention generally relates to a field regulator, particularly a field regulator for a resonant circuit, a transmitter including such a field regulator, a proximity detection system including such a transmitter, and a method of regulating a resonant circuit. In one aspect the invention provides a field regulator for a resonant circuit, the resonant circuit including an inductor coil around a core, the field regulator including a DC bias circuit configured to apply a DC bias current to the inductor coil for regulating an electromagnetic field generated by the inductor. The DC bias circuit can be used to selectively change the inductance of the inductor in the resonant circuit so as to maintain a consistent field strength in a changing environment, particularly to take into account the presence of large metal bodies which might otherwise adversely impact on operation. In particular, the DC bias current may be used to selectively change the natural frequency of the resonant circuit so as to shift the resonant circuit towards a desired resonance point.

    摘要翻译： 本发明一般涉及一种场稳压器，特别是用于谐振电路的场调节器，包括这种场调节器的发射器，包括这种发射器的接近检测系统以及调节谐振电路的方法。 一方面，本发明提供一种用于谐振电路的场调节器，该谐振电路包括围绕磁芯的电感线圈，该场调节器包括DC偏置电路，该DC偏置电路被配置为向该电感线圈施加DC偏置电流，用于调节产生的电磁场 由电感器。 DC偏置电路可以用于选择性地改变谐振电路中的电感器的电感，以便在变化的环境中保持一致的场强，特别是考虑到可能对操作有不利影响的大的金属体的存在 。 特别地，DC偏置电流可以用于选择性地改变谐振电路的固有频率，以使谐振电路朝向期望的谐振点移动。

    ON AND OFF CONTROLLED RESONANT DC-DC POWER CONVERTER
    62.
    发明申请
    ON AND OFF CONTROLLED RESONANT DC-DC POWER CONVERTER 有权
    开关控制谐振DC-DC电源转换器

    公开(公告)号：US20160365795A1

    公开(公告)日：2016-12-15

    申请号：US15110002

    申请日：2015-02-26

    申请人： DANMARKS TEKNISKE UNIVERSITET

    发明人： Mickey P. Madsen ,  Milovan Kovacevic

    IPC分类号： H02M3/335 ,  H02M1/14

    CPC分类号： H02M3/33523 ,  H02M1/14 ,  H02M3/158 ,  H02M3/3376 ,  H02M3/338 ,  H02M2001/0058 ,  H02M2007/4818 ,  Y02B70/1425 ,  Y02B70/1433 ,  Y02B70/1491

    摘要： The present invention relates to a resonant DC-DC power converter comprising an input side circuit comprising a positive and a negative input terminal for receipt of an input voltage or current and an output side circuit comprising positive and negative output terminals for supply of a converter output voltage and connection to a converter load. The resonant DC-DC power converter further comprises a rectification circuit connected between an output of a resonant network and the output side circuit. The resonant network is configured for alternatingly being charged from the input voltage or current and discharged through the rectification circuit by a first controllable switch arrangement in accordance with a first switch control signal. A second controllable switch arrangement of the resonant DC-DC power converter is configured to select a first impedance characteristic of the resonant network in a first switch state and select a second impedance characteristic of the resonant network in a second switch state. An output voltage or current control circuit is configured to adjust the converter output voltage and/or current by activating and interrupting the first switch control signal in accordance with the switch state of the second controllable switch arrangement.

    摘要翻译： 本发明涉及一种谐振DC-DC功率转换器，包括：输入侧电路，包括用于接收输入电压或电流的正输入端和负输入端，以及包括用于提供转换器输出的正和负输出端的输出侧电路 电压和连接到转换器负载。 谐振DC-DC功率转换器还包括连接在谐振网络的输出端和输出侧电路之间的整流电路。 谐振网络被配置为从输入电压或电流交替地充电，并且通过根据第一开关控制信号的第一可控开关装置通过整流电路放电。 谐振DC-DC功率转换器的第二可控开关装置被配置为在第一开关状态中选择谐振网络的第一阻抗特性，并且在第二开关状态下选择谐振网络的第二阻抗特性。 输出电压或电流控制电路被配置为通过根据第二可控开关装置的开关状态激活和中断第一开关控制信号来调节转换器输出电压和/或电流。

    Switching power-supply device
    63.
    发明授权
    Switching power-supply device 有权
    开关电源装置

    公开(公告)号：US09455640B2

    公开(公告)日：2016-09-27

    申请号：US14627285

    申请日：2015-02-20

    申请人： Sanken Electric Co., LTD.

    发明人： Osamu Ohtake

    IPC分类号： H02M3/335 ,  H02M7/48

    CPC分类号： H02M3/33546 ,  H02M3/3376 ,  H02M7/4826 ,  H02M2001/0058 ,  H02M2007/4815 ,  H02M2007/4818 ,  Y02B70/1433 ,  Y02B70/1491

    摘要： A switching power-supply device includes: a transformer including a primary coil and a secondary coil; a rectifying-and-smoothing circuit; a series circuit including a first switching element and a second switching element; a series resonant circuit including a capacitor connected to the second switching element and the primary coil; a controller performing switching control to alternately turn on and off the first switching element and the second switching element with a dead time; and a resonant-current detection unit that detects a resonant current, wherein in a case where the first switching element is in an ON state at a timing when the absolute value level of the resonant current becomes equal to or less than a threshold value, the controller switches the first switching element to an OFF state and makes a subsequent ON period of the first switching element shorter than a last ON period.

    摘要翻译： 开关电源装置包括：变压器，包括初级线圈和次级线圈; 整流平滑电路; 包括第一开关元件和第二开关元件的串联电路; 串联谐振电路，包括连接到第二开关元件和初级线圈的电容器; 控制器执行切换控制以交替地以死区时间打开和关闭第一开关元件和第二开关元件; 以及谐振电流检测单元，其检测谐振电流，其中在所述谐振电流的绝对值等于或小于阈值的时刻，所述第一开关元件处于导通状态的情况下， 控制器将第一开关元件切换到OFF状态，并使第一开关元件的后续导通时间比最后导通周期短。

    RESONANT TYPE HIGH FREQUENCY POWER SUPPLY DEVICE AND SWITCHING CIRCUIT FOR RESONANT TYPE HIGH FREQUENCY POWER SUPPLY DEVICE
    64.
    发明申请
    RESONANT TYPE HIGH FREQUENCY POWER SUPPLY DEVICE AND SWITCHING CIRCUIT FOR RESONANT TYPE HIGH FREQUENCY POWER SUPPLY DEVICE 有权
    谐振型高频电源装置和谐振型高频电源装置的开关电路

    公开(公告)号：US20160254700A1

    公开(公告)日：2016-09-01

    申请号：US15027154

    申请日：2013-10-31

    申请人： MITSUBISHI ELECTRIC ENGINEERING COMPANY, LIMITED

    发明人： Yoshiyuki AKUZAWA ,  Kiyohide SAKAI ,  Toshihiro EZOE ,  Yuki ITO

    IPC分类号： H02J50/12 ,  H02J50/20

    CPC分类号： H02J50/12 ,  H02J50/05 ,  H02J50/20 ,  H02M7/48 ,  H02M2007/4815 ,  H02M2007/4818 ,  Y02B70/1441

    摘要： A resonant type high frequency power supply device provided with a power semiconductor element that performs a switching operation, the power supply device including a second power semiconductor element at least one or more connected in parallel to the power semiconductor element to achieve optimization of parasitic capacitances of the power semiconductor element and the second power semiconductor element itself, and a high frequency pulse drive circuit that transmits a pulse-shaped voltage signal having a high frequency exceeding 2 MHz to the power semiconductor element and the second power semiconductor element to drive the power semiconductor element and the second power semiconductor element.

    摘要翻译： 一种谐振型高频电源装置，其具有进行开关动作的功率半导体元件，所述电力供给装置包括与所述功率半导体元件并联连接的至少一个以上的第二功率半导体元件，以实现寄生电容的最优化 功率半导体元件和第二功率半导体元件本身，以及高频脉冲驱动电路，其将具有超过2MHz的高频的脉冲状电压信号发送到功率半导体元件和第二功率半导体元件，以驱动功率半导体 元件和第二功率半导体元件。

    Switching Power-Supply Device
    65.
    发明申请
    Switching Power-Supply Device 有权
    开关电源装置

    公开(公告)号：US20160248332A1

    公开(公告)日：2016-08-25

    申请号：US14627285

    申请日：2015-02-20

    申请人： Sanken Electric Co., LTD.

    发明人： Osamu Ohtake

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33546 ,  H02M3/3376 ,  H02M7/4826 ,  H02M2001/0058 ,  H02M2007/4815 ,  H02M2007/4818 ,  Y02B70/1433 ,  Y02B70/1491

    摘要： A switching power-supply device includes: a transformer including a primary coil and a secondary coil; a rectifying-and-smoothing circuit; a series circuit including a first switching element and a second switching element; a series resonant circuit including a capacitor connected to the second switching element and the primary coil; a controller performing switching control to alternately turn on and off the first switching element and the second switching element with a dead time; and a resonant-current detection unit that detects a resonant current, wherein in a case where the first switching element is in an ON state at a timing when the absolute value level of the resonant current becomes equal to or less than a threshold value, the controller switches the first switching element to an OFF state and makes a subsequent ON period of the first switching element shorter than a last ON period.

    摘要翻译： 开关电源装置包括：变压器，包括初级线圈和次级线圈; 整流平滑电路; 包括第一开关元件和第二开关元件的串联电路; 串联谐振电路，包括连接到第二开关元件和初级线圈的电容器; 控制器执行切换控制以交替地以死区时间打开和关闭第一开关元件和第二开关元件; 以及谐振电流检测单元，其检测谐振电流，其中在所述谐振电流的绝对值等于或小于阈值的时刻，所述第一开关元件处于导通状态的情况下， 控制器将第一开关元件切换到OFF状态，并使第一开关元件的后续导通时间比最后导通周期短。

    Capacitor charger system, power modulator and resonant power converter
    67.
    发明授权
    Capacitor charger system, power modulator and resonant power converter 有权
    电容充电器系统，功率调制器和谐振电源转换器

    公开(公告)号：US09083256B2

    公开(公告)日：2015-07-14

    申请号：US13724382

    申请日：2012-12-21

    申请人： ScandiNova Systems AB

    发明人： Walter Frederick John Crewson ,  Klas Elmqvist

    IPC分类号： H02M3/335 ,  H02M3/337 ,  H02M7/48

    CPC分类号： H02M3/3376 ,  H02M2001/0058 ,  H02M2007/4815 ,  H02M2007/4818 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

    摘要： A capacitor charger system has a resonant power converter to connect to a capacitor via a rectifier. The resonant power converter has a switch-based bridge network, an internal transformer, a resonant circuit, and an amplitude stabilization circuit. The switch-based bridge network comprises at least one pair of switches. The resonant circuit includes a series-resonant branch with capacitive and inductive components, and the resonant circuit is connected in the circuit path to a midpoint between a pair of switches of the switch-based bridge network. The amplitude stabilization circuit provides stabilization of the resonant amplitude of the resonant circuit, and the amplitude stabilization circuit includes one-way conducting circuitry connected between an unrestricted node defined by a junction and a connection point of the resonant power converter having a predefined voltage level at operation. The resonant power converter connects to the output rectifier via the secondary winding of the internal transformer.

    摘要翻译： 电容充电器系统具有通过整流器连接到电容器的谐振功率转换器。 谐振功率转换器具有基于开关的桥接网络，内部变压器，谐振电路和振幅稳定电路。 基于交换机的桥接网络包括至少一对交换机。 谐振电路包括具有电容和电感分量的串联谐振分支，并且谐振电路在电路路径中连接到基于开关的桥网络的一对开关之间的中点。 幅度稳定电路提供谐振电路的谐振幅度的稳定性，并且幅度稳定电路包括连接在由结点限定的非限制节点和谐振功率转换器的连接点之间的单向导电电路，其具有预定的电压电平 操作。 谐振功率转换器通过内部变压器的次级绕组连接到输出整流器。

    Controlled Resonance in Electrical Power Devices
    69.
    发明申请
    Controlled Resonance in Electrical Power Devices 审中-公开
    电力设备控制谐振

    公开(公告)号：US20150002068A1

    公开(公告)日：2015-01-01

    申请号：US14370576

    申请日：2013-01-04

    申请人： Opto Generic Devices, Inc.

    发明人： Ormonde G. Durham ,  Edward E. Lakata

    IPC分类号： H02M7/539 ,  H02P23/00

    CPC分类号： H02P23/0077 ,  H02M7/217 ,  H02M7/539 ,  H02M2007/4818 ,  H02P23/0004 ,  H05B3/00 ,  H05B6/02

    摘要： Systems for controlled resonance in electrical power devices are described. A programmed signal processor generates output control signals from input electrical signals based on resonant control parameters for a target power device. Analog electrical control systems for controlled resonance, power devices incorporating controlled resonance, and opto-programmed controllers for use in controlled resonance applications are described, with example embodiments for electro-mechanical systems with resonant constructive power drive action for electric motors.

    摘要翻译： 描述了用于电力设备中受控谐振的系统。 编程信号处理器基于目标功率器件的谐振控制参数从输入电信号产生输出控制信号。 具有用于受控谐振的模拟电气控制系统，并入受控共振的功率器件以及用于受控共振应用中的光编程控制器被描述，其具有用于电动马达具有谐振建构性功率驱动动作的机电系统的示例性实施例。

    AC-DC RESONANT CONVERTER THAT PROVIDES HIGH EFFICIENCY AND HIGH POWER DENSITY
    70.
    发明申请
    AC-DC RESONANT CONVERTER THAT PROVIDES HIGH EFFICIENCY AND HIGH POWER DENSITY 有权
    AC-DC谐振转换器提供高效率和高功率密度

    公开(公告)号：US20140140113A1

    公开(公告)日：2014-05-22

    申请号：US13680970

    申请日：2012-11-19

    申请人： APPLE INC.

    发明人： InHwan Oh

    IPC分类号： H02M7/217

    CPC分类号： H02M7/217 ,  H02M1/14 ,  H02M1/4241 ,  H02M2007/4818 ,  Y02B70/126 ,  Y02B70/1441

    摘要： The disclosed embodiments provide an AC/DC power converter that converts an AC input voltage into a DC output voltage. This AC/DC power converter includes an input rectifier stage which rectifies an AC input voltage into a first rectified voltage of a first constant polarity and a first amplitude. The AC/DC power converter also includes a switching resonant stage which is directly coupled to the output of the input rectifier stage. This switching resonant stage converts the rectified voltage into a second rectified voltage of a second constant polarity and a second amplitude. The AC/DC power converter additionally includes an output rectifier stage coupled to the output of the switching resonant stage, wherein the output rectifier stage rectifies the second rectified voltage into a DC voltage output.

    摘要翻译： 所公开的实施例提供将AC输入电压转换为DC输出电压的AC / DC功率转换器。 该AC / DC功率转换器包括将AC输入电压整流为第一恒定极性和第一幅度的第一整流电压的输入整流级。 AC / DC功率转换器还包括直接耦合到输入整流级的输出的开关谐振级。 该开关谐振级将整流电压转换为第二恒定极性和第二幅度的第二整流电压。 AC / DC功率转换器还包括耦合到开关谐振级的输出的输出整流器级，其中输出整流器级将第二整流电压整流为DC电压输出。