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公开(公告)号：US07403365B2
公开(公告)日：2008-07-22
申请号：US11505821
申请日：2006-08-18
IPC分类号： H02H9/08
CPC分类号： H02M1/32 , H02M3/156 , H02M2001/0009
摘要： An over-current detection circuit using the ON-voltage of a main MOSFET is provided, which is resistant to process variations of a main MOSFET and is not easily influenced by switching noise. Separately from a main MOSFET (Q1), a sense MOSFET (Q3) whose size is 1/m of the main MOSFET is provided and it is caused to be normally on. A DC ON-voltage generated when a current that is 1/m of an over-current value is caused to flow through the sense MOSFET is obtained as a reference voltage for over-current setting. The ON-voltage when the main MOSFET is on is sampled and held, and it is obtained as a DC voltage. These DC voltages are compared in a comparator (COMP).
摘要翻译： 提供了使用主MOSFET的导通电压的过电流检测电路，其抵抗主MOSFET的工艺变化，并且不容易受到开关噪声的影响。 与主MOSFET（Q1）分开，提供尺寸为主MOSFET的1 / m的感测MOSFET（Q 3），并使其正常导通。 获得当使过电流值为1 / m的电流通过感测MOSFET流过时产生的直流导通电压作为过电流设定的基准电压。 主MOSFET导通时的导通电压进行采样保持，作为直流电压获得。 在比较器（COMP）中比较这些直流电压。
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公开(公告)号：US20070188958A1
公开(公告)日：2007-08-16
申请号：US11505821
申请日：2006-08-18
CPC分类号： H02M1/32 , H02M3/156 , H02M2001/0009
摘要： An over-current detection circuit using the ON-voltage of a main MOSFET is provided, which is resistant to process variations of a main MOSFET and is not easily influenced by switching noise. Separately from a main MOSFET (Q1), a sense MOSFET (Q3) whose size is 1/m of the main MOSFET is provided and it is caused to be normally on. A DC ON-voltage generated when a current that is 1/m of an over-current value is caused to flow through the sense MOSFET is obtained as a reference voltage for over-current setting. The ON-voltage when the main MOSFET is on is sampled and held, and it is obtained as a DC voltage. These DC voltages are compared in a comparator (COMP).
摘要翻译： 提供了使用主MOSFET的导通电压的过电流检测电路，其抵抗主MOSFET的工艺变化，并且不容易受到开关噪声的影响。 与主MOSFET（Q1）分开，提供尺寸为主MOSFET的1 / m的感测MOSFET（Q 3），并使其正常导通。 获得当使过电流值为1 / m的电流通过感测MOSFET流过时产生的直流导通电压作为过电流设定的基准电压。 主MOSFET导通时的导通电压进行采样保持，作为直流电压获得。 在比较器（COMP）中比较这些直流电压。
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公开(公告)号：US20070120540A1
公开(公告)日：2007-05-31
申请号：US11320872
申请日：2005-12-30
申请人： Takashi Sase , Akihiko Kanouda , Yosuke Kawakubo
发明人： Takashi Sase , Akihiko Kanouda , Yosuke Kawakubo
IPC分类号： G05F1/00
CPC分类号： H02M3/156 , H02M2001/0025
摘要： A power-supply device comprising such marginal check voltage setting circuit that is easily adaptable to downsizing of the device and to configuration using ICs. The power-supply device of this invention comprises a marginal check voltage setting circuit that accepts input of a reference voltage and sets a desired marginal check voltage, an error amplifier that accepts input of the marginal check voltage and also the output voltage of the power-supply device and delivers output of an error signal, that is, the difference between the two inputs, a pulse width modulation oscillator that modulates the pulse width of the output from the error amplifier, a driver circuit that generates driving signal from the pulse signal originating from the pulse width modulation oscillator, and a pair of power semiconductor switching devices that work to step down the input voltage and generate an output voltage based on the driving signal. Furthermore, the power-supply device is also provided with an over-voltage detection circuit that sets an over-voltage detection reference voltage, and a power-good circuit that sets a power-good determination reference voltage, both circuits being positioned at the output terminal of the marginal check voltage setting circuit.
摘要翻译： 一种电源装置，包括这种边缘检查电压设置电路，其容易适应于设备的小型化和使用IC的配置。 本发明的电源装置包括边缘检查电压设置电路，其接受参考电压的输入并设置期望的边际检查电压，误差放大器，其接受边际检查电压的输入以及接收电源的输出电压， 提供装置并输出误差信号的输出，即，两个输入之间的差异，调制误差放大器的输出的脉冲宽度的脉宽调制振荡器，产生来自脉冲信号的驱动信号的驱动电路 以及一对功率半导体开关器件，用于降低输入电压并基于驱动信号产生输出电压。 此外，电源装置还设置有设置过电压检测基准电压的过电压检测电路，以及设定功率良好判定基准电压的电力供给电路，两个电路位于输出端 边缘检查电压设定电路的端子。
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公开(公告)号：US07615980B2
公开(公告)日：2009-11-10
申请号：US11320872
申请日：2005-12-30
申请人： Takashi Sase , Akihiko Kanouda , Yosuke Kawakubo
发明人： Takashi Sase , Akihiko Kanouda , Yosuke Kawakubo
IPC分类号： G05F1/40
CPC分类号： H02M3/156 , H02M2001/0025
摘要： A power-supply device including a marginal check voltage setting circuit that is easily adaptable to downsizing of the device and to configuration using ICs. The power-supply device of this invention includes a marginal check voltage setting circuit that sets a desired marginal check voltage, an error amplifier that delivers output of an error signal, a pulse width modulation oscillator that modulates the pulse width of the output from the error amplifier, a driver circuit that generates driving signal from the pulse signal originating from the pulse width modulation oscillator, and a pair of power semiconductor switching devices that work to step down the input voltage and generate an output voltage based on the driving signal. Furthermore, the power-supply device is also provided with an over-voltage detection circuit and a power-good circuit both circuits being positioned at the output terminal of the marginal check voltage setting circuit.
摘要翻译： 一种电源装置，包括边缘检查电压设置电路，其容易适应于设备的小型化以及使用IC的配置。 本发明的电源装置包括设置期望的边缘检查电压的边缘检查电压设置电路，提供误差信号的输出的误差放大器，调制脉冲宽度的脉冲宽度的脉冲宽度调制振荡器 放大器，根据源自脉宽调制振荡器的脉冲信号产生驱动信号的驱动电路，以及一对功率半导体开关器件，用于降低输入电压并基于驱动信号产生输出电压。 此外，电源装置还设置有过电压检测电路和电源良好电路，两个电路位于边缘检查电压设置电路的输出端。
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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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8.发明授权Power-supply unit, hard-disk drive, and switching method of the power-supply unit 失效电源单元，硬盘驱动器和电源单元的切换方式公开(公告)号：US08724348B2
公开(公告)日：2014-05-13
申请号：US12869176
申请日：2010-08-26
申请人： Takashi Sase , Akihiko Kanouda , Yosuke Tsuyuki
发明人： Takashi Sase , Akihiko Kanouda , Yosuke Tsuyuki
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M2001/0032 , H02M2001/0048 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491 , Y02B70/16
摘要： A power-supply unit including a transformer, a full bridge circuit having four arm switches on a primary side of the transformer, a rectifier and smoothing circuit including two synchronous rectifier switches on a secondary side of the transformer, a choke coil, and a capacitor, an output terminal in the rectifier and smoothing circuit, a control circuit controlling ON/OFF of the four arm switches of the full bridge circuit and the two synchronous rectifier switches of the rectifier and smoothing circuit, a resonant inductor including a leakage inductor component and a parasitic inductor component on the primary side of the transformer, and a resonant capacitor, and in which the control circuit includes a timing variable unit which varies switching timings of the two synchronous rectifier switches of the rectifier and smoothing circuit based on an output current flowing in the output terminal provided in the rectifier and smoothing circuit.
摘要翻译： 包括变压器的电源单元，在变压器的初级侧具有四个臂开关的全桥电路，整流器和平滑电路，包括在变压器次级侧上的两个同步整流开关，扼流线圈和电容器 整流器和平滑电路中的输出端子，控制全桥电路的四臂开关和整流器和平滑电路的两个同步整流开关的接通/断开的控制电路，包括泄漏电感器元件的谐振电感器和 变压器初级侧的寄生电感器部件和谐振电容器，其中控制电路包括定时可变单元，其基于输出电流流动来改变整流器和平滑电路的两个同步整流开关的开关定时 在整流器和平滑电路中提供的输出端子。
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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：US20050127881A1
公开(公告)日：2005-06-16
申请号：US10912149
申请日：2004-08-06
申请人： Takashi Sase , Akihiko Kanouda , Katsunori Hayashi
发明人： Takashi Sase , Akihiko Kanouda , Katsunori Hayashi
CPC分类号： H02M3/156 , H02M2001/0025
摘要： The object of the invention is to compensate an effect of a voltage drop emerging in output voltage by the equivalent series resistance of a power output filter in a power-supply device. To achieve the object, a power-supply device wherein the power output filter that passes output power and first and second filters provided separately from the power output filter are provided, the first filter provided separately and one input terminal of an error amplifier are connected, new reference voltage acquired by adding differential voltage between the output of the second filter provided separately and the output of the power output filter to reference voltage is input to the other input terminal of the error amplifier and an output signal is fed back to the error amplifier is provided. According to the power-supply device, a voltage drop by equivalent series resistance emerging the output voltage of the power-supply device can be compensated.
摘要翻译： 本发明的目的是通过电源装置中的功率输出滤波器的等效串联电阻来补偿输出电压中出现的电压降的影响。 为了实现该目的，提供了一种电源装置，其中通过输出功率的功率输出滤波器和与功率输出滤波器分开设置的第一和第二滤波器被提供，单独提供的第一滤波器和误差放大器的一个输入端相连， 通过在单独提供的第二滤波器的输出和功率输出滤波器的输出与参考电压之间增加差分电压获得的新参考电压被输入到误差放大器的另一输入端，并且输出信号被反馈到误差放大器 被提供。 根据电源装置，可以补偿出现电源装置的输出电压的等效串联电阻的电压降。
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