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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.
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公开(公告)号：US07385380B2
公开(公告)日：2008-06-10
申请号：US11621664
申请日：2007-01-10
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
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。
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公开(公告)号：US20060113979A1
公开(公告)日：2006-06-01
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
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.
摘要翻译： 提供了一种具有低功率损耗和相对于输出变化及其小型化所需的响应特性的电源驱动电路。 在构成开关模式电源设备的驱动器IC中，通过脉冲宽度调制来控制通过线圈中的电流的第一和第二功率晶体管的输出，并输出从输入电压降压或升压的电压， 通过在运算放大器的反相输入端和非反相输入端之间设置开关晶体管来实现响应，防止当第二功率晶体管导通时产生当第一功率晶体管导通时未定义的电位， 即当第二功率晶体管截止时，并且将节点电位维持在其中电势良好定义的状态。
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公开(公告)号：US06879137B2
公开(公告)日：2005-04-12
申请号：US10937397
申请日：2004-09-10
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： 降压式DC-DC电源装置同时实现了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％。
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公开(公告)号：US20050237039A1
公开(公告)日：2005-10-27
申请号：US10524087
申请日：2003-08-08
申请人： Mutsumi Kikuchi , Noboru Akiyama , Hiroyuki Shoji , Fumio Murabayashi , Akihiko Kanouda , Takashi Sase , Koji Tateno
发明人： Mutsumi Kikuchi , Noboru Akiyama , Hiroyuki Shoji , Fumio Murabayashi , Akihiko Kanouda , Takashi Sase , Koji Tateno
CPC分类号： G11C5/147 , H01L27/0688 , H01L27/08 , H02M3/156 , H02M2001/007
摘要： A semiconductor device capable of achieving downsizing without reducing the power supply efficiency and capable of reducing switching noises and a memory card using the same are disclosed. The device comprises a plurality of stages of voltage booster circuits for potentially raising a power supply voltage up to a final output voltage, a voltage control unit for controlling an output voltage at a nearby location of the final stage, and one or more internal elements to which the final output voltage is supplied. A primary voltage booster circuit at the first stage includes an inductance element, a switching element, a diode and a driver circuit. At a metal core part of the inductance element, a metal wiring line is used, which was formed by use of a fabrication process of semiconductor integrated circuits, while employing for its core part an inter-wiring layer dielectric film that was formed using the fabrication process. In addition, the switching element and the diode are arranged so that portions thereof are disposed beneath the inductance element.
摘要翻译： 公开了能够实现小型化而不降低电源效率并且能够降低开关噪声的半导体器件和使用其的存储卡。 该装置包括用于潜在地提高最终输出电压的电源电压的多级升压电路，用于控制最后级的附近位置处的输出电压的电压控制单元和一个或多个内部元件 其提供最终输出电压。 第一级的初级升压电路包括电感元件，开关元件，二极管和驱动器电路。 在电感元件的金属芯部分，使用通过使用半导体集成电路的制造工艺形成的金属布线，同时使用其核心部分使用该制造形成的布线层电介质膜 处理。 此外，开关元件和二极管被布置成使得其部分设置在电感元件下方。
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公开(公告)号：US20050127886A1
公开(公告)日：2005-06-16
申请号：US11043086
申请日：2005-01-27
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％。
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公开(公告)号：US06798180B2
公开(公告)日：2004-09-28
申请号：US10462680
申请日：2003-06-17
IPC分类号： G05F1575
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 &agr; 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％。
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公开(公告)号：US07268611B2
公开(公告)日：2007-09-11
申请号：US10524087
申请日：2003-08-08
申请人： Mutsumi Kikuchi , Noboru Akiyama , Hiroyuki Shoji , Fumio Murabayashi , Akihiko Kanouda , Takashi Sase , Koji Tateno
发明人： Mutsumi Kikuchi , Noboru Akiyama , Hiroyuki Shoji , Fumio Murabayashi , Akihiko Kanouda , Takashi Sase , Koji Tateno
IPC分类号： G05F1/10
CPC分类号： G11C5/147 , H01L27/0688 , H01L27/08 , H02M3/156 , H02M2001/007
摘要： A semiconductor device capable of achieving downsizing without reducing the power supply efficiency and capable of reducing switching noises and a memory card using the same are disclosed. The device comprises a plurality of stages of voltage booster circuits for potentially raising a power supply voltage up to a final output voltage, a voltage control unit for controlling an output voltage at a nearby location of the final stage, and one or more internal elements to which the final output voltage is supplied. A primary voltage booster circuit at the first stage includes an inductance element, a switching element, a diode and a driver circuit. At a metal core part of the inductance element, a metal wiring line is used, which was formed by use of a fabrication process of semiconductor integrated circuits, while employing for its core part an inter-wiring layer dielectric film that was formed using the fabrication process. In addition, the switching element and the diode are arranged so that portions thereof are disposed beneath the inductance element.
摘要翻译： 公开了能够实现小型化而不降低电源效率并且能够降低开关噪声的半导体器件和使用其的存储卡。 该装置包括用于潜在地提高最终输出电压的电源电压的多级升压电路，用于控制最后级的附近位置处的输出电压的电压控制单元和一个或多个内部元件 其提供最终输出电压。 第一级的初级升压电路包括电感元件，开关元件，二极管和驱动器电路。 在电感元件的金属芯部分，使用通过使用半导体集成电路的制造工艺形成的金属布线，同时使用其核心部分使用该制造形成的布线层电介质膜 处理。 此外，开关元件和二极管被布置成使得其部分设置在电感元件下方。
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公开(公告)号：US20050029997A1
公开(公告)日：2005-02-10
申请号：US10937397
申请日：2004-09-10
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％。
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公开(公告)号：US20130002313A1
公开(公告)日：2013-01-03
申请号：US13613359
申请日：2012-09-13
申请人： KYOICHI HOSOKAWA , Ryotaro Kudo , Toshio Nagasawa , Koji Tateno
发明人： KYOICHI HOSOKAWA , Ryotaro Kudo , Toshio Nagasawa , Koji Tateno
IPC分类号： H03K3/00
CPC分类号： H02M3/1588 , G05F1/44 , H02M7/538 , H03F3/217 , H03F2200/351 , H03F2200/78 , H03K17/063 , H03K17/687 , Y02B70/1466
摘要： In a switching power source which controls a current which flows in an inductor through a switching element which performs a switching operation in response to a PWM signal, and forms an output voltage by a capacitor which is provided in series in the inductor, a booster circuit which is constituted of a bootstrap capacity and a MOSFET is provided between an output node of the switching element and a predetermined voltage terminal. The boosted voltage is used as an operational voltage of a driving circuit of the switching element, another source/drain region and a substrate gate are connected with each other, and a junction diode between one source/drain region and the substrate gate is inversely directed with respect to the boosted voltage which is formed by the bootstrap capacity.
摘要翻译： 在开关电源中，其通过响应于PWM信号进行开关动作的开关元件来控制在电感器中流动的电流，并且通过串联设置在电感器中的电容器形成输出电压， 在开关元件的输出节点和预定的电压端子之间设置由自举电容构成的MOSFET和MOSFET。 升压电压用作开关元件的驱动电路的工作电压，另一个源极/漏极区域和衬底栅极彼此连接，并且在一个源极/漏极区域和衬底栅极之间的结二极管被反向导向 相对于由自举容量形成的升压电压。
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