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1. 发明授权

US07492132B2 Switching regulator 有权
标题翻译：开关稳压器
公开(公告)号：US07492132B2
公开(公告)日：2009-02-17
申请号：US11488833
申请日：2006-07-19
申请人： Hiroshi Kuroiwa , Yasuhiko Kokami , Osamu Yamashita
发明人： Hiroshi Kuroiwa , Yasuhiko Kokami , Osamu Yamashita
IPC分类号： G05F1/00 , G05F1/613
CPC分类号： H02M3/156 , H02M2001/0022
摘要： The present invention provides a switching regulator having good stability compatible with a good response and an enhanced protection function. A first capacitor is placed between an output end of an inductor to generate an output voltage and a ground potential. From input voltage, a current is supplied to the inductor's input end by a first switch element. A first feedback path includes a hysteretic comparator. An output voltage added to a voltage proportional to the current flowing through the inductor is supplied to the hysteretic comparator which discriminates whether the voltage is appropriate by hysteresis characteristics and generates a PWM control signal in accordance with an output current variation. Moreover, a second feedback path is provided to feed back an error amplifier output voltage with greater gain in a low frequency domain and an attenuation loop around a PWM frequency band to the comparator's reference voltage input terminal. Feedback voltage through the second feedback path is used as a monitoring voltage in a protection circuit.
摘要翻译：本发明提供了具有良好稳定性的开关调节器，其具有良好的响应和增强的保护功能。电感器的输出端之间放置第一电容器以产生输出电压和接地电位。从输入电压，通过第一开关元件将电流提供给电感器的输入端。第一反馈路径包括滞后比较器。加到与流过电感器的电流成比例的电压的输出电压被提供给迟滞比较器，其通过滞后特性来鉴别电压是否合适，并根据输出电流变化产生PWM控制信号。此外，提供第二反馈路径以将低频域中具有较大增益的误差放大器输出电压和围绕PWM频带的衰减环路反馈到比较器的参考电压输入端子。通过第二反馈路径的反馈电压被用作保护电路中的监视电压。

2. 发明申请

US20070035281A1 Switching regulator 有权
标题翻译：开关稳压器
公开(公告)号：US20070035281A1
公开(公告)日：2007-02-15
申请号：US11488833
申请日：2006-07-19
申请人： Hiroshi Kuroiwa , Yasuhiko Kokami , Osamu Yamashita
发明人： Hiroshi Kuroiwa , Yasuhiko Kokami , Osamu Yamashita
IPC分类号： G05F1/00
CPC分类号： H02M3/156 , H02M2001/0022
摘要： The present invention provides a switching regulator having good stability compatible with a good response and an enhanced protection function. A first capacitor is placed between an output end of an inductor to generate an output voltage and a ground potential. From input voltage, a current is supplied to the inductor's input end by a first switch element. A first feedback path includes a hysteretic comparator. An output voltage added to a voltage proportional to the current flowing through the inductor is supplied to the hysteretic comparator which discriminates whether the voltage is appropriate by hysteresis characteristics and generates a PWM control signal in accordance with an output current variation. Moreover, a second feedback path is provided to feed back an error amplifier output voltage with greater gain in a low frequency domain and an attenuation loop around a PWM frequency band to the comparator's reference voltage input terminal. Feedback voltage through the second feedback path is used as a monitoring voltage in a protection circuit.
摘要翻译：本发明提供了具有良好稳定性的开关调节器，其具有良好的响应和增强的保护功能。电感器的输出端之间放置第一电容器以产生输出电压和接地电位。从输入电压，通过第一开关元件将电流提供给电感器的输入端。第一反馈路径包括滞后比较器。加到与流过电感器的电流成比例的电压的输出电压被提供给迟滞比较器，其通过滞后特性来鉴别电压是否合适，并根据输出电流变化产生PWM控制信号。此外，提供第二反馈路径以将低频域中具有较大增益的误差放大器输出电压和围绕PWM频带的衰减环路反馈到比较器的参考电压输入端子。通过第二反馈路径的反馈电压被用作保护电路中的监视电压。

3. 发明授权

US07710678B2 VCM driver and PWM amplifier 失效
标题翻译： VCM驱动器和PWM放大器
公开(公告)号：US07710678B2
公开(公告)日：2010-05-04
申请号：US12169891
申请日：2008-07-09
申请人： Yasuhiko Kokami , Hiroshi Kuroiwa
发明人： Yasuhiko Kokami , Hiroshi Kuroiwa
IPC分类号： G11B5/02 , G11B21/02
CPC分类号： G11B5/5526 , G11B5/5547
摘要： The present invention provides a VCM driver realizing low power consumption and high accuracy and a PWM amplifier compensating a dead time distortion. A phase compensator, a ΔS modulator receiving an output signal of the phase compensator and converting the output signal to a control code of predetermined bits, a PWM modulator receiving the control code to produce a PWM signal, and an output circuit receiving the PWM signal to drive a voice coil constitute a forward path. A sense amplifier sensing a current of the voice coil, an ADC receiving an output signal of the sense amplifier, a low-pass filter receiving an output signal of the ADC, and a decimation filter receiving an output signal of the low-pass filter constitute a feedback path. An output signal of the decimation filter is fed back to the input side of the phase compensator to form a major feedback loop having a first-order characteristic loop gain. An output signal of the decimation filter is fed back to the output side of the phase compensator to form a minor feedback loop having a loop gain which is flat until a target band frequency when viewed from the output side of the phase compensator.
摘要翻译：本发明提供了实现低功耗和高精度的VCM驱动器以及补偿死区时间失真的PWM放大器。接收相位补偿器的输出信号并将输出信号转换成预定比特的控制码的相位补偿器，调制器调制器，接收控制码产生PWM信号的PWM调制器，以及接收PWM信号的输出电路信号驱动音圈构成前进路径。感测放大器，感测音圈的电流，接收读出放大器的输出信号的ADC，接收ADC的输出信号的低通滤波器以及接收低通滤波器的输出信号的抽取滤波器构成反馈路径。抽取滤波器的输出信号被反馈到相位补偿器的输入侧以形成具有一阶特性环路增益的主反馈环路。抽取滤波器的输出信号被反馈到相位补偿器的输出侧，以形成从相位补偿器的输出侧观察到直到目标频带频率为止的环路增益的次级反馈环路。

4. 发明授权

US07848044B2 VCM driver and PWM amplifier 失效
标题翻译： VCM驱动器和PWM放大器
公开(公告)号：US07848044B2
公开(公告)日：2010-12-07
申请号：US12728449
申请日：2010-03-22
申请人： Yasuhiko Kokami , Hiroshi Kuroiwa
发明人： Yasuhiko Kokami , Hiroshi Kuroiwa
IPC分类号： G11B5/02 , G11B21/02
CPC分类号： G11B5/5526 , G11B5/5547
摘要： The present invention provides a VCM driver realizing low power consumption and high accuracy and a PWM amplifier compensating a dead time distortion. A phase compensator, a ΔΣ modulator receiving an output signal of the phase compensator and converting the output signal to a control code of predetermined bits, a PWM modulator receiving the control code to produce a PWM signal, and an output circuit receiving the PWM signal to drive a voice coil constitute a forward path. A sense amplifier sensing a current of the voice coil, an ADC receiving an output signal of the sense amplifier, a low-pass filter receiving an output signal of the ADC, and a decimation filter receiving an output signal of the low-pass filter constitute a feedback path. An output signal of the decimation filter is fed back to the input side of the phase compensator to form a major feedback loop having a first-order characteristic loop gain. An output signal of the decimation filter is fed back to the output side of the phase compensator to form a minor feedback loop having a loop gain which is flat until a target band frequency when viewed from the output side of the phase compensator.
摘要翻译：本发明提供了实现低功耗和高精度的VCM驱动器以及补偿死区时间失真的PWM放大器。相位补偿器，＆Dgr;＆Sgr; 调制器接收相位补偿器的输出信号并将输出信号转换成预定位的控制码;接收控制码以产生PWM信号的PWM调制器;接收PWM信号以驱动音圈的输出电路构成一个前进路径感测放大器，感测音圈的电流，接收读出放大器的输出信号的ADC，接收ADC的输出信号的低通滤波器以及接收低通滤波器的输出信号的抽取滤波器构成反馈路径。抽取滤波器的输出信号被反馈到相位补偿器的输入侧以形成具有一阶特性环路增益的主反馈环路。抽取滤波器的输出信号被反馈到相位补偿器的输出侧，以形成从相位补偿器的输出侧观察到直到目标频带频率为止的环路增益的次级反馈环路。

5. 发明申请

US20090080115A1 VCM DRIVER AND PWM AMPLIFIER 失效
标题翻译： VCM驱动器和PWM放大器
公开(公告)号：US20090080115A1
公开(公告)日：2009-03-26
申请号：US12169891
申请日：2008-07-09
申请人： Yasuhiko Kokami , Hiroshi Kuroiwa
发明人： Yasuhiko Kokami , Hiroshi Kuroiwa
IPC分类号： G11B5/54
CPC分类号： G11B5/5526 , G11B5/5547
摘要： The present invention provides a VCM driver realizing low power consumption and high accuracy and a PWM amplifier compensating a dead time distortion. A phase compensator, a ΔS modulator receiving an output signal of the phase compensator and converting the output signal to a control code of predetermined bits, a PWM modulator receiving the control code to produce a PWM signal, and an output circuit receiving the PWM signal to drive a voice coil constitute a forward path. A sense amplifier sensing a current of the voice coil, an ADC receiving an output signal of the sense amplifier, a low-pass filter receiving an output signal of the ADC, and a decimation filter receiving an output signal of the low-pass filter constitute a feedback path. An output signal of the decimation filter is fed back to the input side of the phase compensator to form a major feedback loop having a first-order characteristic loop gain. An output signal of the decimation filter is fed back to the output side of the phase compensator to form a minor feedback loop having a loop gain which is flat until a target band frequency when viewed from the output side of the phase compensator.
摘要翻译：本发明提供了实现低功耗和高精度的VCM驱动器以及补偿死区时间失真的PWM放大器。相位补偿器，DeltaS调制器，接收相位补偿器的输出信号，并将输出信号转换成预定位的控制码; PWM调制器，接收控制码以产生PWM信号，以及输出电路，接收PWM信号驱动音圈构成前进路径。感测放大器，感测音圈的电流，接收读出放大器的输出信号的ADC，接收ADC的输出信号的低通滤波器以及接收低通滤波器的输出信号的抽取滤波器构成反馈路径。抽取滤波器的输出信号被反馈到相位补偿器的输入侧以形成具有一阶特性环路增益的主反馈环路。抽取滤波器的输出信号被反馈到相位补偿器的输出侧，以形成从相位补偿器的输出侧观察到直到目标频带频率为止的环路增益的次级反馈环路。

6. 发明申请

US20100177444A1 VCM DRIVER AND PWM AMPLIFIER 失效
标题翻译： VCM驱动器和PWM放大器
公开(公告)号：US20100177444A1
公开(公告)日：2010-07-15
申请号：US12728449
申请日：2010-03-22
申请人： Yasuhiko Kokami , Hiroshi Kuroiwa
发明人： Yasuhiko Kokami , Hiroshi Kuroiwa
IPC分类号： G11B5/55
CPC分类号： G11B5/5526 , G11B5/5547
摘要： The present invention provides a VCM driver realizing low power consumption and high accuracy and a PWM amplifier compensating a dead time distortion. A phase compensator, a ΔΣ modulator receiving an output signal of the phase compensator and converting the output signal to a control code of predetermined bits, a PWM modulator receiving the control code to produce a PWM signal, and an output circuit receiving the PWM signal to drive a voice coil constitute a forward path. A sense amplifier sensing a current of the voice coil, an ADC receiving an output signal of the sense amplifier, a low-pass filter receiving an output signal of the ADC, and a decimation filter receiving an output signal of the low-pass filter constitute a feedback path. An output signal of the decimation filter is fed back to the input side of the phase compensator to form a major feedback loop having a first-order characteristic loop gain. An output signal of the decimation filter is fed back to the output side of the phase compensator to form a minor feedback loop having a loop gain which is flat until a target band frequency when viewed from the output side of the phase compensator.
摘要翻译：本发明提供了实现低功耗和高精度的VCM驱动器以及补偿死区时间失真的PWM放大器。相位补偿器，＆Dgr;＆Sgr; 调制器接收相位补偿器的输出信号并将输出信号转换成预定位的控制码;接收控制码以产生PWM信号的PWM调制器;接收PWM信号以驱动音圈的输出电路构成一个前进路径感测放大器，感测音圈的电流，接收读出放大器的输出信号的ADC，接收ADC的输出信号的低通滤波器以及接收低通滤波器的输出信号的抽取滤波器构成反馈路径。抽取滤波器的输出信号被反馈到相位补偿器的输入侧以形成具有一阶特性环路增益的主反馈环路。抽取滤波器的输出信号被反馈到相位补偿器的输出侧，以形成从相位补偿器的输出侧观察到直到目标频带频率为止的环路增益的次级反馈环路。

7. 发明授权

US06757129B2 Magnetic disk storage apparatus 失效
标题翻译：磁盘存储装置
公开(公告)号：US06757129B2
公开(公告)日：2004-06-29
申请号：US10081536
申请日：2002-02-25
申请人： Hiroshi Kuroiwa , Yasuhiko Kokami
发明人： Hiroshi Kuroiwa , Yasuhiko Kokami
IPC分类号： G11B5596
CPC分类号： G11B5/5526 , G11B5/5547 , G11B21/083
摘要： In a magnetic disk storage apparatus, when a drive current of the voice coil motor is small, the head drive control circuit executes the linear drive mode under which the voice coil motor is driven in a linear control manner, whereas when the drive current is large, the head drive control circuit executes the pulse drive mode under which the voice coil motor is driven in a pulse width control manner. Both modes are carried out by employing a commonly-used output amplifier that is arranged as a push-pull type output circuit made of both a push-driving output transistor and a pull-driving output transistor. An operation mode of this output amplifier is set to an AB-class operation during the linear drive mode, whereas the operation mode of this output amplifier is set to a B-class operation during the pulse drive mode.
摘要翻译：在磁盘存储装置中，当音圈电动机的驱动电流小时，磁头驱动控制电路以线性控制方式执行线圈电动机驱动的线性驱动模式，而当驱动电流大时磁头驱动控制电路以脉冲宽度控制方式执行音圈电动机驱动的脉冲驱动模式。这两种模式通过采用被布置为由推驱动输出晶体管和拉动驱动输出晶体管构成的推挽型输出电路的常用输出放大器来进行。该输出放大器的工作模式在线性驱动模式期间被设置为AB级操作，而在脉冲驱动模式期间该输出放大器的操作模式被设置为B级操作。

8. 发明授权

US07370551B2 Gearshift operating device 失效
标题翻译：换档操作装置
公开(公告)号：US07370551B2
公开(公告)日：2008-05-13
申请号：US10743748
申请日：2003-12-24
申请人： Kenichiro Tokuo , Masaru Yamasaki , Hiroshi Kuroiwa , Naoyuki Ozaki
发明人： Kenichiro Tokuo , Masaru Yamasaki , Hiroshi Kuroiwa , Naoyuki Ozaki
IPC分类号： B60K17/04
CPC分类号： F16H61/32 , F16H63/20 , F16H2061/242 , Y10T74/19251 , Y10T74/1926 , Y10T74/2003
摘要： To provide a small-sized and lightweight gearshift operating device that is capable of performing a gearshift operation in a short time at low power consumption, a guide slit having a plurality of slits 41 parallel with the shift fork shafts and a plurality of slant slits 42 concentrated to a neutral point 43 from them is employed to guide a follower 33. The follower 33 is operated along the guide slit, thus the number of times of starting and stopping operations of the motor for the shift operation is reduced, and the load of the actuator for the selection operation is reduced.
摘要翻译：为了提供能够在短时间内以低功耗进行变速操作的小型轻便的换档操作装置，具有与换档拨叉轴平行的多个狭缝41的引导狭缝和多个倾斜狭缝42 集中到它们的中性点43用于引导从动件33.从动件33沿着引导狭缝操作，因此用于换档操作的电动机的起动和停止操作的次数减少，并且负载用于选择操作的致动器减少。

9. 发明授权

US07331897B2 Active shift transmission, transmission control unit and automobile 有权
标题翻译：主动换档变速箱，变速器控制单元和汽车
公开(公告)号：US07331897B2
公开(公告)日：2008-02-19
申请号：US11757435
申请日：2007-06-04
申请人： Masahiko Ibamoto , Hiroyuki Sakamoto , Hiroshi Kuroiwa
发明人： Masahiko Ibamoto , Hiroyuki Sakamoto , Hiroshi Kuroiwa
IPC分类号： F16H48/06
CPC分类号： B60W20/30 , B60K6/36 , B60K6/48 , B60K6/547 , B60K7/0007 , B60L2240/486 , B60W10/06 , B60W10/08 , B60W10/10 , B60W10/115 , B60W20/00 , B60W30/19 , B60W2520/10 , B60W2540/10 , B60W2710/105 , F16H3/126 , F16H61/0403 , F16H61/0437 , F16H2003/0818 , F16H2061/0433 , Y02T10/6221 , Y02T10/6286 , Y10S903/917 , Y10S903/945 , Y10T74/19014 , Y10T74/19019 , Y10T74/19223 , Y10T74/19228 , Y10T74/19233 , Y10T74/19242 , Y10T74/1926 , Y10T74/19284 , Y10T477/26
摘要： The object of the invention is to provide a less expensive active transmission control system for an automobile, capable of disconnecting an engine, without increasing the number of dog clutches.In an active shift transmission, a second intermediate shaft is provided between a transmission input shaft connected with an engine and a transmission output shaft, and the transmission ratio is determined by the product of gear ratios of two sets of transmission gears. Further, a differential gear box is connected between both intermediate shafts and a motor is connected to the third shat of this differential gear box, so that the engine torque is borne by the motor on a temporary basis, whereby active transmission is performed. When the transmission gear of the input shaft is released, the engine rotation loss at the time of regenerative braking can be eliminated by disconnecting the engine.
摘要翻译：本发明的目的是提供一种用于汽车的便宜的主动变速器控制系统，其能够在不增加狗离合器的数量的情况下断开发动机。在主动换档变速器中，第二中间轴设置在与发动机连接的变速器输入轴与变速器输出轴之间，变速比由两组变速齿轮的变速比乘积决定。此外，在两个中间轴之间连接有差速齿轮箱，并且电动机连接到该差动齿轮箱的第三轴瓦，使得发动机扭矩由电动机临时承担，从而进行主动传动。当释放输入轴的传动齿轮时，可以通过断开发动机来消除再生制动时的发动机旋转损失。

10. 发明申请

US20080011574A1 Clutch Structure For Mechanical Automatic Transmission 审中-公开
标题翻译：机械自动变速箱离合器结构
公开(公告)号：US20080011574A1
公开(公告)日：2008-01-17
申请号：US11587478
申请日：2004-04-30
申请人： Masaru Yamasaki , Hitoshi Konno , Hiroshi Kuroiwa , Naoyuki Ozaki , Minoru Morita
发明人： Masaru Yamasaki , Hitoshi Konno , Hiroshi Kuroiwa , Naoyuki Ozaki , Minoru Morita
IPC分类号： F16D13/38
CPC分类号： F16D25/082 , F16D13/52
摘要： A clutch structure of a mechanical automatic transmission capable of suppressing the occurrence of vibration by preventing the pressing force of a clutch from being interfered with a thrust force generated by helical gears, wherein a pressing device pressing a disk in a direction opposite to the axial thrust force generated by the engagement of the first gear with the second gear is formed of a disk pressing device and a counterforce imparting pressing device pressing a clutch hub in a direction opposite to the thrust force.
摘要翻译：一种机械自动变速器的离合器结构，其能够通过防止离合器的按压力受到由斜齿轮产生的推力的干扰而抑制振动的发生，其中按与轴向推力相反的方向按压盘的加压装置由第一齿轮与第二齿轮的啮合产生的力由盘压装置和反作用力赋予按压装置形成，该压力装置沿与推力相反的方向按压离合器毂。

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