公开(公告)号：US08654551B2

公开(公告)日：2014-02-18

申请号：US13214540

申请日：2011-08-22

申请人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Tsuyuki

发明人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Tsuyuki

IPC分类号： H02M7/08 ,  H02J1/10

CPC分类号： H05B33/0809 ,  H02M7/217 ,  H05B33/0815 ,  Y02B20/348

摘要： A power supply device includes two buck converters, having a coupling inductor Lo composed of two mutually-coupled inductors L1, L2, and a output capacitor Co, wherein of the two buck converters, a first buck converter is operated during a positive half-cycle period of an AC input voltage, and a second buck converter is operated during a negative half-cycle period of the AC input voltage, to obtain a DC output voltage at both ends of the output capacitor Co from the AC input voltage, is provided. Herewith, is provided the power-supply device using the buck converter, which can be reduced in the number of components and produced in a low cost without a diode bridge.

摘要翻译： 电源装置包括两个降压转换器，其具有由两个相互耦合的电感器L1，L2和输出电容器Co组成的耦合电感器Lo，其中在两个降压转换器中，第一降压转换器在正半周期期间操作 AC输入电压的周期，并且在AC输入电压的负半周期期间操作第二降压转换器，以从AC输入电压获得输出电容器Co两端的DC输出电压。 因此，提供了使用降压转换器的电源装置，其可以减少元件的数量并且在没有二极管桥的情况下以低成本生产。

公开(公告)号：US08199530B2

公开(公告)日：2012-06-12

申请号：US12544135

申请日：2009-08-19

申请人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Tsuyuki

发明人： Takashi Sase ,  Akihiko Kanouda ,  Yosuke Tsuyuki

IPC分类号： H02M3/335 ,  H02M3/24

CPC分类号： H02M3/33576 ,  Y02B70/1433

摘要： Zero volt switching during a light load is performed in such a manner that through an ON/OFF control of switches provided for a full bridge circuit and the synchronous rectifier switches in a rectifier and smoothing circuit, a resonant peak voltage necessary for the zero voltage switching determined by the output current flowing to output terminals, a resonant inductor and a resonant capacitor capacitance is ensured so that an energy accumulated in the rectifier and smoothing circuit is returned to the full bridge circuit so as to act as equivalent as when the output current is increased and to increase the current flowing through the full bridge circuit.

摘要翻译： 轻负载时的零伏开关以这样的方式执行，即通过对全桥电路和同步整流器的开/关控制切换整流器和平滑电路，零电压开关所需的谐振峰值电压 由流过输出端子的输出电流确定谐振电感器和谐振电容器电容，使得积分在整流器和平滑电路中的能量返回到全桥电路，以便当输出电流为 增加并增加流过全桥电路的电流。

公开(公告)号：US20110194206A1

公开(公告)日：2011-08-11

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： G11B21/02 ,  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 which comprises a transformer, a full bridge circuit consisting of four arm switches provided on a primary side of the transformer, a rectifier and smoothing circuit including two synchronous rectifier switches provided on a secondary side of the transformer, a choke coil, and a capacitor, an output terminal provided 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 consisting of a leakage inductor component of the transformer and a parasitic inductor component of wirings on the primary side of the transformer, and a resonant capacitor consisting of a parasitic capacitor component of the arm switches of the full bridge circuit, and in which the control circuit comprises timing variable means 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，设置在变压器的初级侧的四个臂开关构成的全桥电路，包括设置在变压器次级侧的两个同步整流开关的整流器和平滑电路，扼流圈 以及电容器，设置在整流器和平滑电路中的输出端子，控制电路，控制全桥电路的四个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，谐振电感器包括 的变压器的漏电感器部件和变压器的初级侧的布线的寄生电感器部件以及由全桥电路的臂开关的寄生电容器部件组成的谐振电容器，并且其中控制电路包括 定时可变装置，其改变整流器和smo的两个同步整流开关的开关定时 基于在整流器和平滑电路中提供的输出端中流过的输出电流的电路。

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。

公开(公告)号：US20090021227A1

公开(公告)日：2009-01-22

申请号：US12019761

申请日：2008-01-25

申请人： Takashi Sase ,  Yosuke Kawakubo ,  Kozaburo Kurita

发明人： Takashi Sase ,  Yosuke Kawakubo ,  Kozaburo Kurita

IPC分类号： G05F1/44 ,  G05F1/00

CPC分类号： H02M1/36 ,  H02M3/156 ,  H02M2001/0009

摘要： An electric current flowing to an upper side power MOSFET during soft-start is detected according to an on-voltage of the MOSFET and an on-pulse width of a PWM pulse for driving the upper side power MOSFET is forced to be reset in the idle and decided according to a signal generated when the voltage falls below a predetermined specified voltage.

摘要翻译： 根据MOSFET的导通电压检测软启动期间流向上侧功率MOSFET的电流，驱动上侧功率MOSFET的PWM脉冲的导通脉冲宽度被迫在空闲状态下复位 并根据当电压低于预定的规定电压时产生的信号来决定。

公开(公告)号：US07091711B2

公开(公告)日：2006-08-15

申请号：US11304903

申请日：2005-12-16

申请人： Shinichi Yoshida ,  Tomohiro Tazawa ,  Takashi Sase ,  Kouji Tateno

发明人： Shinichi Yoshida ,  Tomohiro Tazawa ,  Takashi Sase ,  Kouji Tateno

IPC分类号： G05F1/40

CPC分类号： H02M3/1588 ,  H02M3/1563 ,  H02M3/3385 ,  H02M2001/0009 ,  Y02B70/1466

摘要： There is provided a switching power supply device of hysteresis current mode control system which assures excellent response characteristic for change of output current and reduction of power consumption. In a switching regulator of hysteresis current mode control system, a sense resistor connected in series to a coil is eliminated, a serially connected resistor and a capacitor are connected in parallel to a coil in place of such sense resistor. Thereby, a potential of a connection node of these resistor and capacitor is inputted to a comparator circuit having the hysteresis characteristic for comparison with the reference voltage. Accordingly, a switch may be controlled for ON and OFF states.

摘要翻译： 提供了滞环电流模式控制系统的开关电源装置，其确保输出电流变化和功耗降低的优异响应特性。 在滞环电流模式控制系统的开关调节器中，消除了与线圈串联连接的检测电阻器，串联连接的电阻器和电容器与线圈并联连接，代替这种检测电阻器。 由此，将这些电阻和电容器的连接节点的电位输入到具有用于与基准电压进行比较的滞后特性的比较电路。 因此，可以将开关控制为ON和OFF状态。

公开(公告)号：US20060158168A1

公开(公告)日：2006-07-20

申请号：US11384440

申请日：2006-03-21

申请人： Shinichi Yoshida ,  Tomohiro Tazawa ,  Takashi Sase ,  Kouji Tateno

发明人： Shinichi Yoshida ,  Tomohiro Tazawa ,  Takashi Sase ,  Kouji Tateno

IPC分类号： G05F1/40 ,  G05F1/618

CPC分类号： H02M3/1588 ,  H02M3/1563 ,  H02M3/3385 ,  H02M2001/0009 ,  Y02B70/1466

摘要： There is provided a switching power supply device of hysteresis current mode control system which assures excellent response characteristic for change of output current and reduction of power consumption. In a switching regulator of hysteresis current mode control system, a sense resistor connected in series to a coil is eliminated, a serially connected resistor and a capacitor are connected in parallel to a coil in place of such sense resistor. Thereby, a potential of a connection node of these resistor and capacitor is inputted to a comparator circuit having the hysteresis characteristic for comparison with the reference voltage. Accordingly, a switch may be controlled for ON and OFF states.

摘要翻译： 提供了滞环电流模式控制系统的开关电源装置，其确保输出电流变化和功耗降低的优异响应特性。 在滞环电流模式控制系统的开关调节器中，消除了与线圈串联连接的检测电阻器，串联连接的电阻器和电容器与线圈并联连接，代替这种检测电阻器。 由此，将这些电阻和电容器的连接节点的电位输入到具有用于与基准电压进行比较的滞后特性的比较电路。 因此，可以将开关控制为ON和OFF状态。

公开(公告)号：US20060091870A1

公开(公告)日：2006-05-04

申请号：US11304903

申请日：2005-12-16

申请人： Shinichi Yoshida ,  Tomohiro Tazawa ,  Takashi Sase ,  Kouji Tateno

发明人： Shinichi Yoshida ,  Tomohiro Tazawa ,  Takashi Sase ,  Kouji Tateno

IPC分类号： G05F1/40

CPC分类号： H02M3/1588 ,  H02M3/1563 ,  H02M3/3385 ,  H02M2001/0009 ,  Y02B70/1466

摘要： There is provided a switching power supply device of hysteresis current mode control system which assures excellent response characteristic for change of output current and reduction of power consumption. In a switching regulator of hysteresis current mode control system, a sense resistor connected in series to a coil is eliminated, a serially connected resistor and a capacitor are connected in parallel to a coil in place of such sense resistor. Thereby, a potential of a connection node of these resistor and capacitor is inputted to a comparator circuit having the hysteresis characteristic for comparison with the reference voltage. Accordingly, a switch may be controlled for ON and OFF states.

公开(公告)号：US06977522B1

公开(公告)日：2005-12-20

申请号：US10149763

申请日：1999-12-15

申请人： Fumio Murabayashi ,  Takashi Sase ,  Mutsumi Kikuchi ,  Atsuo Watanabe ,  Masatsugu Amishiro ,  Kenji Tabuchi

发明人： Fumio Murabayashi ,  Takashi Sase ,  Mutsumi Kikuchi ,  Atsuo Watanabe ,  Masatsugu Amishiro ,  Kenji Tabuchi

IPC分类号： G05B19/042 ,  G06F3/00 ,  H01L21/762 ,  H01L27/06 ,  H03K19/0175

CPC分类号： H01L21/76283 ,  G05B19/0428 ,  G05B2219/25428 ,  G05B2219/25462 ,  H01L27/0629 ,  H04L25/0266

摘要： A first converter circuit converts a state signal, whose level is constant or slowly varies during a predetermine period of time, into a pulse signal to allow the signal to propagate across an electrically insulating area. A second converter circuit converts the pulse signal, which has propagated through an insulating circuit, into the original state signal or a signal having the same characteristics as the original state signal.

摘要翻译： 第一转换器电路将预定时间段内的电平恒定或缓慢变化的状态信号转换成脉冲信号，以允许信号通过电绝缘区域传播。 第二转换器电路将已经通过绝缘电路传播的脉冲信号转换成原始状态信号或具有与原始状态信号相同特性的信号。

公开(公告)号：US06879137B2

公开(公告)日：2005-04-12

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 ,  G05F1/575

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％。