公开(公告)号：US20100134078A1

公开(公告)日：2010-06-03

申请号：US12567149

申请日：2009-09-25

申请人： Maki MURAKAMI ,  Takuya ISHII ,  Takashi RYU

发明人： Maki MURAKAMI ,  Takuya ISHII ,  Takashi RYU

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02J7/0065 ,  H02M2001/0022

摘要： A step-down switching regulator includes a switching device coupled to an input terminal to which an input voltage is applied, an inductor having a first end and a second end, the first end being connected to the switching device, a smoothing unit having an output terminal and configured to smooth a voltage at the second end of the inductor and generate an output voltage at the output terminal, a rectifier configured to flow a current to the inductor when the switching device is in an OFF state, and a control circuit configured to drive the switching device so that the output voltage becomes equal to a set target voltage. The control circuit detects a difference voltage between the input voltage and the output voltage or a difference voltage between the input voltage and the set target voltage, and causes the switching device to be in an ON state when the difference voltage is lower than or equal to a predetermined voltage value.

摘要翻译： 降压开关调节器包括耦合到施加有输入电压的输入端子的开关装置，具有第一端和第二端的电感器，第一端连接到开关装置，平滑单元，具有输出端 并且被配置为平滑电感器的第二端处的电压并在输出端产生输出电压，整流器被配置为当开关器件处于断开状态时将电流流向电感器，并且控制电路被配置为 驱动开关器件，使得输出电压等于设定的目标电压。 控制电路检测输入电压和输出电压之间的差分电压或输入电压与设定的目标电压之间的差分电压，并且当差值电压低于或等于 预定的电压值。

公开(公告)号：US20110089925A1

公开(公告)日：2011-04-21

申请号：US12974624

申请日：2010-12-21

申请人： Makoto ISHIDA ,  Takashi RYU ,  Takuya ISHII

发明人： Makoto ISHIDA ,  Takashi RYU ,  Takuya ISHII

IPC分类号： G05F1/618

CPC分类号： H02M3/1563 ,  H02M1/32

摘要： A switching regulator is configured to generate an output voltage by stepping down an input voltage by switching control of a switching element. The switching regulator includes a first comparator configured to compare a feedback voltage of the output voltage and a target voltage; a second comparator configured to compare magnitude of a current flowing through the switching element and a predetermined value; an on-time timer configured to measure fixed on-time for on-control of the switching element; an off-time timer configured to measure fixed off-time for off-control of the switching element; and a control circuit configured to perform the on-control of the switching element with the fixed on-time in accordance with an output of the first comparator, and the off-control of the switching element with the fixed off-time in accordance with an output of the second comparator.

摘要翻译： 开关稳压器被配置为通过切换开关元件的控制来降低输入电压来产生输出电压。 开关稳压器包括：第一比较器，被配置为比较输出电压的反馈电压和目标电压; 第二比较器，被配置为比较流经所述开关元件的电流的大小和预定值; 接通时间定时器，其被配置为测量固定导通时间以对所述开关元件进行导通控制; 断开时间定时器，其被配置为测量用于切换元件的非控制的固定关闭时间; 以及控制电路，被配置为根据第一比较器的输出，以固定的导通时间执行开关元件的接通控制，并且根据第二比较器的固定关断时间对开关元件的断开控制 输出第二比较器。

公开(公告)号：US20120247905A1

公开(公告)日：2012-10-04

申请号：US13429940

申请日：2012-03-26

申请人： Satoru KASUYA ,  Hiroshi KATOU ,  Takuya ISHII ,  Norihiro TOKUNAGA ,  Kenta TAMABAYASHI

发明人： Satoru KASUYA ,  Hiroshi KATOU ,  Takuya ISHII ,  Norihiro TOKUNAGA ,  Kenta TAMABAYASHI

IPC分类号： F16D25/10 ,  F16D25/0635

CPC分类号： F16D25/0638 ,  F16D13/683 ,  F16D21/06 ,  F16D25/10 ,  F16D25/12 ,  F16D2048/029

摘要： A hydraulic clutch including a clutch drum with an outer cylinder fitted with a plurality of clutch plates and a side wall; a clutch piston that defines together with the clutch drum an engagement oil chamber, and moves in an axial direction to press the clutch plates by hydraulic pressure supplied to the engagement oil chamber; and a cancel plate that defines together with the clutch piston a cancel oil chamber that cancels centrifugal hydraulic pressure. The side wall of the clutch drum is formed with a first oil passage that radially extends and is in communication with the engagement oil chamber, and a second oil passage that radially extends and is in communication with the cancel oil chamber. One of the first and second oil passages is at least partially included in a range of an axial width of the other of the first and second oil passages.

摘要翻译： 一种液压离合器，包括具有装配有多个离合器片和侧壁的外筒的离合器鼓; 离合器活塞，其与离合器鼓一体地形成接合油室，并且沿着轴向移动，通过供给到接合油室的液压压迫离合器片; 以及抵消板，其与离合器活塞一起限定抵消离心液压的解除油室。 离合器鼓的侧壁形成有径向延伸并与接合油室连通的第一油通道和径向延伸并与取消油室连通的第二油通道。 第一和第二油路中的一个至少部分地包括在第一和第二油通道中另一个的轴向宽度的范围内。

公开(公告)号：US20110254524A1

公开(公告)日：2011-10-20

申请号：US13169571

申请日：2011-06-27

申请人： Takuya ISHII

发明人： Takuya ISHII

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  G05F1/10 ,  H02M2001/0022 ,  H05B33/0815 ,  H05B33/0848

摘要： In order to provide a current driver circuit capable of achieving a stable operation without feeding a load current back, a current driver circuit of the present invention includes: a converter part (2a) having a switching element (21) and converting an input voltage (Vi) into an output voltage; a current detector (4) which generates a detection signal (Vfb) indicative of the current of the switching element; an input voltage compensating circuit (5) which generates a compensation signal (Vr) corresponding to the input voltage; a comparator (6) which compares the detection signal and the compensation signal against each other; and a switch driver circuit (7) which generates a drive signal (Vg). The drive signal (Vg) turns the switching element off in accordance with an output (Vc) of the comparator, and turns the switching element on again after a lapse of a prescribed time from the switching element being turned off.

摘要翻译： 本发明的电流驱动电路为了提供能够实现稳定工作的电流驱动电路，本发明的电流驱动电路包括：转换器部分（2a），具有开关元件（21）并转换输入电压（ Vi）转换成输出电压; 电流检测器（4），其生成表示开关元件的电流的检测信号（Vfb）; 输入电压补偿电路（5），其产生对应于输入电压的补偿信号（Vr）; 比较器（6），其将检测信号和补偿信号彼此进行比较; 以及产生驱动信号（Vg）的开关驱动电路（7）。 驱动信号（Vg）根据比较器的输出（Vc）使开关元件断开，并且在从断开开关元件经过规定时间后再次接通开关元件。

公开(公告)号：US20090153124A1

公开(公告)日：2009-06-18

申请号：US12332081

申请日：2008-12-10

申请人： Takuya ISHII

发明人： Takuya ISHII

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M2001/0032 ,  Y02B70/16

摘要： A DC-to-DC converter includes a DC-to-DC conversion unit for converting an input voltage into an output voltage by switching operation of the switching element according to a drive signal and supplying the output voltage to a load and a control unit for generating the drive signal. The control unit includes a determination circuit for determining whether the load is in a normal operation state or a standby state, an error amplifier for generating an error signal according to the output voltage, a first drive-signal generator for generating a pulse sequence of pulses each having a pulse width according to the error signal, and a second drive-signal generator for generating a pulse having a pulse width larger than a cycle of repetition of the pulses in the pulse sequence when the voltage according to the output voltage falls below the reference voltage and the load is in the standby state.

摘要翻译： DC-DC转换器包括DC-DC转换单元，用于通过根据驱动信号切换开关元件的操作将输入电压转换为输出电压，并将输出电压提供给负载，并且控制单元用于 产生驱动信号。 控制单元包括用于确定负载是处于正常操作状态还是待机状态的判定电路，用于根据输出电压产生误差信号的误差放大器，用于产生脉冲序列的第一驱动信号发生器 每个具有根据误差信号的脉冲宽度;以及第二驱动信号发生器，用于产生脉冲宽度大于脉冲序列中脉冲重复周期的脉冲，当脉冲序列的电压下降到低于 参考电压，负载处于待机状态。

公开(公告)号：US20120091978A1

公开(公告)日：2012-04-19

申请号：US13243164

申请日：2011-09-23

申请人： Takuya ISHII

发明人： Takuya ISHII

IPC分类号： G05F1/00

CPC分类号： H02M1/36 ,  H02M3/1588 ,  Y02B70/1466

摘要： A DC-DC converter transforms a DC input voltage to generate a DC output voltage by complementary switching control of a main switching transistor and a synchronous rectifying transistor. The DC-DC converter includes a soft-start circuit configured to generate a soft-start voltage rising from an initial voltage at start-up of the DC-DC converter; and a control circuit configured to control switching of the main switching transistor and the synchronous rectifying transistor based on the soft-start voltage to perform soft start of the DC-DC converter. The control circuit brings both of the main switching transistor and the synchronous rectifying transistor to an off state while the soft-start voltage is lower than the DC output voltage.

摘要翻译： DC-DC转换器通过主开关晶体管和同步整流晶体管的互补开关控制来变换直流输入电压以产生直流输出电压。 DC-DC转换器包括软启动电路，其被配置为产生从DC-DC转换器启动时的初始电压上升的软启动电压; 以及控制电路，被配置为基于所述软启动电压来控制所述主开关晶体管和所述同步整流晶体管的开关，以执行所述DC-DC转换器的软启动。 当软启动电压低于直流输出电压时，控制电路使主开关晶体管和同步整流晶体管都断开。

公开(公告)号：US20120247907A1

公开(公告)日：2012-10-04

申请号：US13430078

申请日：2012-03-26

申请人： Satoru KASUYA ,  Hiroshi KATOU ,  Takuya ISHII ,  Norihiro TOKUNAGA ,  Kenta TAMABAYASHI

发明人： Satoru KASUYA ,  Hiroshi KATOU ,  Takuya ISHII ,  Norihiro TOKUNAGA ,  Kenta TAMABAYASHI

IPC分类号： F16D25/10

CPC分类号： F16D13/683 ,  F16D25/0635 ,  F16D25/10 ,  F16D25/12 ,  F16D2048/029

摘要： A transmission device includes a first clutch and a second clutch that is disposed circumferentially inward of the first clutch so as to overlap with the first clutch as viewed from a radial direction. The first clutch includes a first clutch drum, a first clutch piston that is axially movable by hydraulic pressure supplied to a first engagement side oil chamber on an inner circumferential side of the first clutch drum, and a first cancel plate that defines together with the first clutch piston a first cancel oil chamber that cancels centrifugal hydraulic pressure. The first cancel plate is fastened between the first clutch drum and a second clutch drum of the second clutch.

摘要翻译： 传动装置包括第一离合器和第二离合器，该第一离合器和第二离合器沿径向方向从第一离合器周向地设置成与第一离合器重叠。 第一离合器包括第一离合器鼓，第一离合器活塞，其通过供给第一离合器鼓的内周侧上的第一接合侧油室的液压可轴向移动;第一离合器活塞，其与第一离合器鼓一起限定， 离合器活塞是取消离心液压的第一取消油室。 第一抵消板被紧固在第一离合器鼓和第二离合器的第二离合器鼓之间。

公开(公告)号：US20110156669A1

公开(公告)日：2011-06-30

申请号：US13044284

申请日：2011-03-09

申请人： Takuya ISHII

发明人： Takuya ISHII

IPC分类号： G05F1/56

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A DC-DC converter includes a bootstrap circuit including a capacitor which is configured to be charged when a low-side switch is an on-state, and being configured to pull up an on-drive voltage of the high-side switch by a charged voltage of the capacitor, a control circuit configured to perform switching control of the high-side switch and the low-side switch, and a predetermined-time trigger circuit configured to cause an output to be active for a predetermined time, when a break signal for instructing switching control of the high-side switch and the low-side switch to be halted is inactive. The control circuit performs switching control to turn the high-side switch off and the low-side switch on, when the output of the predetermined-time trigger circuit is active.

摘要翻译： 一种DC-DC转换器，包括：自举电路，包括电容器，该电容器被配置为当低侧开关处于导通状态时被充电，并且被配置为通过充电来提升高侧开关的导通电压 电容器的电压;控制电路，被配置为执行高侧开关和低侧开关的切换控制;以及预定时间触发电路，被配置为使得输出在预定时间内被激活，当断开信号 用于指示要停止的高侧开关和低侧开关的开关控制不活动。 当预定时间触发电路的输出有效时，控制电路进行切换控制，使高侧开关断开，低端开关接通。

公开(公告)号：US20070139982A1

公开(公告)日：2007-06-21

申请号：US11567962

申请日：2006-12-07

申请人： Tomotaka UENO ,  Takuya ISHII

发明人： Tomotaka UENO ,  Takuya ISHII

IPC分类号： H02M3/18

CPC分类号： H02M3/07

摘要： A high efficiency charge pump circuit and a power supply apparatus that can sense the output current level and change the connection of flying capacitors. The charge pump circuit includes a switching circuit that performs a switching operation of alternately switching between the charge state of charging flying capacitor from input terminal and a discharge state of discharging flying capacitor to output terminal. A flying capacitor, one end of which is connected to a connection point between two switch elements and to the other end of which a drive signal from switching circuit is applied. A detection control section detects a voltage of flying capacitor and outputs various drive signals. The charge pump circuit detects the voltage of the flying capacitor and senses the output current that is output from output terminal according to a relationship indicating the difference between the input voltage and the initial value Vc0 of the detected voltage of flying capacitor in the charge state.

摘要翻译： 一种高效率的电荷泵电路和能感测输出电流电平并改变飞行电容器连接的电源装置。 电荷泵电路包括切换电路，其执行交替切换来自输入端子的充电飞溅电容器的充电状态与放电飞天电容器到输出端子的放电状态的切换操作。 一个飞行电容器，其一端连接到两个开关元件之间的连接点，另一端连接到来自开关电路的驱动信号。 检测控制部分检测飞行电容器的电压并输出各种驱动信号。 充电泵电路根据表示输入电压与充电状态下的飞行电容器的检测电压的初始值Vc 0的差的关系来检测飞电容器的电压并感测从输出端子输出的输出电流 。

公开(公告)号：US20130195388A1

公开(公告)日：2013-08-01

申请号：US13798676

申请日：2013-03-13

申请人： Takuya ISHII ,  Katsushi TAKEO ,  Ken YASUDA

发明人： Takuya ISHII ,  Katsushi TAKEO ,  Ken YASUDA

IPC分类号： F16C33/22

CPC分类号： F16C33/22 ,  F16C33/201 ,  F16C33/205 ,  F16C33/208 ,  F16C2208/02 ,  F16C2208/36 ,  F16C2210/04 ,  F16C2220/04 ,  F16C2240/40 ,  F16C2240/60 ,  Y10S384/911

摘要： A high-precision slide bearing is provided which includes a substrate of sintered metal and a synthetic resin layer. This bearing can be used e.g. for rotary shafts in compressors of room air-conditioners or in transmissions of motor vehicles and construction machines to support relatively large radial and axial loads. The resin layer is integrally superposed on the radially inner surface of the sintered metal substrate of the slide bearing, which is a cylindrical member. The resin layer is made of a resin composition of an aromatic polyetherketone resin containing a fibrous filler. The fibrous filler are made up of fibers dispersed in the resin layer and oriented such that their length directions intersect the rotational direction of the bearing at angles of 45 to 90 degrees. The resin layer has a thickness of 0.1 to 0.7 mm.

摘要翻译： 提供了一种高精度滑动轴承，其包括烧结金属的基底和合成树脂层。 这种轴承可以例如使用。 用于室内空调的压缩机中的旋转轴或用于机动车辆和建筑机械的变速器中的旋转轴，以支撑相对较大的径向和轴向载荷。 树脂层一体地叠置在作为圆柱形构件的滑动轴承的烧结金属基板的径向内表面上。 树脂层由含有纤维状填料的芳香族聚醚酮树脂的树脂组合物构成。 纤维填料由分散在树脂层中的纤维构成，并且其长度方向与45度至90度的角度的轴承的旋转方向相交。 树脂层的厚度为0.1〜0.7mm。