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103 条记录 (耗时 0.029 秒)

    SWITCHING POWER SUPPLY
    42.
    发明申请
    SWITCHING POWER SUPPLY 失效
    切换电源

    公开(公告)号：US20070262761A1

    公开(公告)日：2007-11-15

    申请号：US11621664

    申请日：2007-01-10

    申请人： Takuya ISHIGAKI ,  Takashi Sase ,  Akihiko Kanouda ,  Koji Kateno ,  Ryotaro Kudo

    发明人： Takuya ISHIGAKI ,  Takashi Sase ,  Akihiko Kanouda ,  Koji Kateno ,  Ryotaro Kudo

    IPC分类号： G05F1/46

    CPC分类号： H02M3/156 ,  H02M2001/0009

    摘要： In a switching power supply apparatus for performing a switching control of a power MOS transistor that flows current to a coil and converting input voltage into output voltage, even if there occurs offset voltage in a current sensing operational amplifier, source potential of a current sensing MOS transistor is precisely kept at source potential of a low side power MOS transistor. For example, an offset cancel capacitor is arranged at an inverting input terminal of the current sensing operational amplifier, and voltage in the direction to offset the offset voltage occurring in the operational amplifier is charged to this capacitor.

    摘要翻译： 在用于对电流流向线圈并将输入电压转换为输出电压的功率MOS晶体管的开关控制的开关电源装置中，即使在电流感测运算放大器中发生偏移电压，电流感测MOS的源极电位 晶体管被精确地保持在低边功率MOS晶体管的源极电位。 例如，偏移消除电容器被布置在电流感测运算放大器的反相输入端子处，并且将在运算放大器中发生的偏移电压偏移的方向上的电压充电到该电容器。

    Power supply driver circuit
    43.
    发明授权
    Power supply driver circuit 失效

    公开(公告)号：US07138786B2

    公开(公告)日：2006-11-21

    申请号：US11287293

    申请日：2005-11-28

    申请人： Takuya Ishigaki ,  Takashi Sase ,  Akihiko Kanouda ,  Koji Tateno ,  Ryotaro Kudo

    发明人： Takuya Ishigaki ,  Takashi Sase ,  Akihiko Kanouda ,  Koji Tateno ,  Ryotaro Kudo

    IPC分类号： G05F1/613

    CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

    摘要： A power supply driver circuit with low power losses and desired response characteristics with respect to changes in output and its miniaturization is provided. In a driver IC constituting a switched-mode power supply equipment controlling the switching, by pulse width modulation, of first and second power transistors passing a current in a coil, and outputting a voltage bucked or boosted from an input voltage, current sensing with desired responsiveness is enabled by providing a switching transistor between an inverted input terminal and a non-inverted input terminal of an operational amplifier, preventing, while the second power transistor is ON, the generation of a potential which is undefined when first power transistor is ON, i.e. when the second power transistor is OFF, and maintaining a node potential in a state in which the potential is well defined.

    Resonant converter and control method thereof
    44.
    发明授权
    Resonant converter and control method thereof 失效
    谐振转换器及其控制方法

    公开(公告)号：US07088594B2

    公开(公告)日：2006-08-08

    申请号：US10984846

    申请日：2004-11-10

    申请人： Takashi Sase ,  Akihiko Kanouda ,  Tetsuya Nagayama ,  Tadahiko Hashimoto

    发明人： Takashi Sase ,  Akihiko Kanouda ,  Tetsuya Nagayama ,  Tadahiko Hashimoto

    IPC分类号： H02M3/335

    CPC分类号： H02M3/3376 ,  H02M3/33592 ,  H02M2001/007 ,  Y02B70/1433 ,  Y02B70/1475

    摘要： A resonant converter which can realize its easy design, eliminate the need for its adjustment, realize reliable soft switching operation, and increase an efficiency. A driver DRV of a main switching device uses a PLL circuit PLL to apply frequency tracking control in such a manner that a driving frequency fsw is made to track a resonant frequency fr (or 1/N thereof, N being an odd number) and that the phase of the driving frequency fsw leads the current zero phase of the resonant frequency fr always by a desired time. As a result, such an optimum condition can be kept that the main switching device is triggered immediately before the zero-cross point of a resonant current. Thus the resonant converter which can always satisfy the optimum operational conditions, realize soft switching operation, and increase an efficiency can be realized with an easy design and a manufacturing adjustment-free arrangement.

    摘要翻译： 谐振变换器可以实现其易于设计，无需调整，实现可靠的软开关操作，提高效率。 主开关装置的驱动器DRV使用PLL电路PLL以使驱动频率fsw跟踪谐振频率fr（或其1 / N，N为奇数）的方式施加频率跟踪控制，并且 驱动频率fsw的相位总是导致谐振频率fr的当前零相位期望所需时间。 结果，可以保持在谐振电流的零交叉点之前立即触发主开关装置的最佳状态。 因此，可以通过简单的设计和无制造调整的布置来实现总是能够满足最佳操作条件，实现软开关操作和提高效率的谐振转换器。

    Uninterruptible power system
    45.
    发明授权
    Uninterruptible power system 有权
    不间断电源系统

    公开(公告)号：US07049711B2

    公开(公告)日：2006-05-23

    申请号：US10623681

    申请日：2003-07-22

    申请人： Akihiko Kanouda ,  Fumikazu Takahashi ,  Minehiro Nemoto ,  Masahiro Hamaogi

    发明人： Akihiko Kanouda ,  Fumikazu Takahashi ,  Minehiro Nemoto ,  Masahiro Hamaogi

    IPC分类号： H02J7/00

    CPC分类号： H02M1/4225 ,  H02J9/061 ,  H02M2001/009 ,  Y02B70/126 ,  Y10T307/625

    摘要： A boost circuit is connected to a rechargeable battery and a switch is connected between a rectification circuit and a power factor correction converter. In the power failure state, the switch is turned on to activate the boost circuit and energy of the rechargeable battery is supplied to a load by rasing the voltage at two steps in the path from the boost circuit, switch, and to power factor correction converter. Since the voltage of the battery can be lowered, the number of serially connected cells can be made small. The volume of UPS can be reduced and a low cost can be realized. Since the number of serially connected cells is reduced, the reliability against failure of battery cells can be improved.

    摘要翻译： 升压电路连接到可再充电电池，开关连接在整流电路和功率因数校正转换器之间。 在电源故障状态下，开关导通以激活升压电路，并且通过在从升压电路，开关和功率因数校正转换器的路径中以两个步进电压的方式将可再充电电池的能量提供给负载 。 由于可以降低电池的电压，可以使串联连接的电池的数量变小。 可以减少UPS的体积，并且可以实现低成本。 由于串联连接的电池的数量减少，因此可以提高电池单元的故障的可靠性。

    Backup power supply
    46.
    发明授权
    Backup power supply 失效
    备用电源

    公开(公告)号：US06977448B2

    公开(公告)日：2005-12-20

    申请号：US10423869

    申请日：2003-04-28

    申请人： Akihiko Kanouda ,  Satoru Masuyama ,  Masato Isogai ,  Ryouhei Saga ,  Kenichi Onda ,  Norikazu Tokunaga

    发明人： Akihiko Kanouda ,  Satoru Masuyama ,  Masato Isogai ,  Ryouhei Saga ,  Kenichi Onda ,  Norikazu Tokunaga

    IPC分类号： H02J7/00 ,  H01M10/44 ,  H02J9/06

    CPC分类号： H02J9/061 ,  Y10T307/549 ,  Y10T307/587 ,  Y10T307/615 ,  Y10T307/625

    摘要： Apparatus built-in backup power supply system has a “peak cut” function for sharing a part of the load current at the time of a peak load using a secondary battery. For this purpose, a two-way DC—DC converter 5 and the secondary battery 4 are installed on the DC output side of the AC-DC converter 3, and that portion of the load current that exceeds a predetermined peak cut level is discharged from the secondary battery 4 during peak loading. When the load is less than the predetermined cut level, the secondary battery 4 is charged from the AC-DC converter 3 via the two-way DC—DC converter 5. A suitable peak cut level is determined according to the state of charge of the secondary battery and load pattern, and is changed dynamically.

    摘要翻译： 仪器内置备用电源系统具有“峰值切换”功能，用于在使用二次电池的峰值负载时共享一部分负载电流。 为此，在AC-DC转换器3的直流输出侧安装双向DC-DC转换器5和二次电池4，超过预定的峰值切断电平的部分负载电流从 二次电池4在峰值负载期间。 当负载小于预定的切断电平时，通过双向DC-DC转换器5从AC-DC转换器3对二次电池4进行充电。根据电池的充电状态来确定合适的峰值电平 二次电池和负载模式，并动态更改。

    POWER-SUPPLY DEVICE
    49.
    发明申请
    POWER-SUPPLY DEVICE 有权
    电源设备

    公开(公告)号：US20050029997A1

    公开(公告)日：2005-02-10

    申请号：US10937397

    申请日：2004-09-10

    申请人： Takashi Sase ,  Koji Tateno ,  Akihiko Kanouda ,  Katsunori Hayashi ,  Shinichi Yoshida

    发明人： Takashi Sase ,  Koji Tateno ,  Akihiko Kanouda ,  Katsunori Hayashi ,  Shinichi Yoshida

    IPC分类号： H02M3/158 ,  H02M3/335 ,  G05F1/40

    CPC分类号： H02M3/1584 ,  H02M3/1588 ,  H02M3/33507 ,  Y02B70/1466

    摘要： A step-down type DC-DC power-supply device implements both the stabilization of the control loop and the responsibility at the same time. In the power-supply device, an output power signal is fed back to an error amplifier after having passed through a CR smoothing filter provided independently of a power LC smoothing filter. Also, independently of the duty controls over Power MOSFETs, i.e., upper-side/lower-side semiconductor switching components in the steady state, an output from the power LC smoothing filter is added to an upper and lower limit-mode-equipped control circuit, thereby, at the transient state, forcefully setting the duty α at either 0% or 100%.

    摘要翻译： 降压型DC-DC电源装置同时实现控制回路的稳定和责任。 在电源装置中，在通过独立于功率LC平滑滤波器设置的CR平滑滤波器之后，输出功率信号被反馈到误差放大器。 而且，独立于功率MOSFET的占空比控制，即处于稳定状态的上侧/下侧半导体开关元件，来自功率LC平滑滤波器的输出被加到上限和下限模式配置的控制电路 因此，在瞬态状态下，强制将占空比α设置为0％或100％。