公开(公告)号：US06674258B2

公开(公告)日：2004-01-06

申请号：US10175059

申请日：2002-06-20

申请人： Hirofumi Sakai ,  Tomoharu Yokouchi ,  Yasunori Yamamoto ,  Masashi Inao ,  Taishi Iwanaga

发明人： Hirofumi Sakai ,  Tomoharu Yokouchi ,  Yasunori Yamamoto ,  Masashi Inao ,  Taishi Iwanaga

IPC分类号： G05B1128

CPC分类号： H02P6/10 ,  H02M7/5395 ,  H02M2001/0009 ,  H02P6/085 ,  H02P6/28

摘要： A motor driver having output circuits each including upper and lower side switching elements connected in series. The motor driver includes: a current detection resistance connected in series with the output circuits in common; a phase switch circuit for turning ON a switching element on one side of one of the output circuits for a time period corresponding to a predetermined electrical angle and switching switching elements on the other side of a plurality of output circuits among the remaining ones of the output circuits; and an ON-period control section for generating a signal for controlling the switching operation so that each of periods obtained by dividing the time period includes a first period in which a plurality of switching elements are turned ON and a second period in which one of the switching elements turned ON in the first period is kept ON.

摘要翻译： 具有各自包括串联连接的上侧开关元件和下侧开关元件的输出电路的电机驱动器。 电机驱动器包括：与输出电路串联连接的电流检测电阻; 一个相位切换电路，用于在输出电路中的一个输出电路的一侧上接通一个对应于预定电角度的时间段的开关元件，并且在剩余的输出电路中的多个输出电路的另一侧上切换开关元件 电路; 以及导通周期控制部分，用于产生用于控制切换操作的信号，使得通过划分时间段获得的每个周期包括多个开关元件导通的第一周期和第二周期，其中， 在第一周期中接通的开关元件保持ON。

公开(公告)号：US06873126B2

公开(公告)日：2005-03-29

申请号：US10608157

申请日：2003-06-30

申请人： Masashi Inao ,  Yasunori Yamamoto ,  Taishi Iwanaga ,  Tomoharu Yokouchi ,  Hirofumi Sakai

发明人： Masashi Inao ,  Yasunori Yamamoto ,  Taishi Iwanaga ,  Tomoharu Yokouchi ,  Hirofumi Sakai

IPC分类号： H02P6/00 ,  H02P6/14 ,  H02K23/00

CPC分类号： H02P6/14 ,  H02P6/28 ,  H02P2209/07

摘要： A motor drive method for a motor driver having output circuits each including upper and lower side switching elements connected in series, and a current detection resistance connected in series with the output circuits in common. The motor drive method includes the steps of: turning ON a switching element on one side of one of the output circuits for a time period corresponding to a predetermined electrical angle; and repeatedly switching switching elements on the other side of a plurality of output circuits among the remaining ones of the output circuits. In the switching step, each of a plurality of periods obtained by dividing the time period corresponding to the predetermined electrical angle includes a first period in which one of the switching elements to be switched is turned ON and a second period in which another one of the switching elements is turned ON.

摘要翻译： 一种用于具有输出电路的电机驱动器的电机驱动方法，每个输出电路各自包括串联连接的上下开关元件和与输出电路串联连接的电流检测电阻。 电动机驱动方法包括以下步骤：在一个输出电路的一侧上接通开关元件一段对应于预定电角度的时间段; 并且在其余输出电路中的多个输出电路的另一侧反复切换开关元件。 在切换步骤中，通过划分对应于预定电角度的时间段而获得的多个周期中的每个周期包括第一周期，其中要切换的开关元件中的一个被接通，以及第二周期，其中， 开关元件接通。

公开(公告)号：US06969963B2

公开(公告)日：2005-11-29

申请号：US10737832

申请日：2003-12-18

申请人： Hirofumi Sakai ,  Tomoharu Yokouchi ,  Ken Maruyama

发明人： Hirofumi Sakai ,  Tomoharu Yokouchi ,  Ken Maruyama

IPC分类号： H02P6/12 ,  H02P6/14 ,  H02P6/16 ,  G05B11/28 ,  H02P3/08 ,  H02P5/06

CPC分类号： H02P6/16 ,  H02P6/15 ,  Y02P80/116

摘要： The motor driver having a plurality of output circuits each having two switching elements connected in series includes: a phase switch circuit for putting a switching element on one side of one output circuit among the plurality of output circuits in the ON state during a time period corresponding to a predetermined electrical angle, and performing switching operation for switching elements on the other side of plural output circuits among the remaining output circuits; and a conduction period control section. The conduction period control section generates a signal for controlling the switching operation. Specifically, when the number of times of switching operation performed during the time period corresponding to the predetermined electrical angle is equal to or less than a predetermined value, a switching element corresponding to a phase, for which the magnitude of the current should be decreased, is turned OFF in the time period corresponding to the next predetermined electrical angle.

摘要翻译： 具有串联连接的两个开关元件的多个输出电路的电机驱动器包括：相位切换电路，用于在开关状态期间的多个输出电路中的一个输出电路的一侧上放置开关元件 并且对剩余的输出电路中的多个输出电路的另一侧的开关元件进行开关动作; 和导通周期控制部。 导通时段控制部分产生用于控制切换操作的信号。 具体地说，当在与预定电角度对应的时间段内执行的切换操作的次数等于或小于预定值时，对应于应该减小电流大小的相位的开关元件， 在对应于下一预定电角度的时间段内被关闭。

公开(公告)号：US07187147B2

公开(公告)日：2007-03-06

申请号：US10924939

申请日：2004-08-25

申请人： Tomoharu Yokouchi

发明人： Tomoharu Yokouchi

IPC分类号： H02P5/41

CPC分类号： H02M7/53875 ,  H02M2001/0009 ,  H02M2003/1555 ,  H02P8/12

摘要： A current detecting switching element is connected to an output circuit having switching elements making a bridge connection, current flowing to the switching element is detected by a current detection circuit in response to a torque command signal, a PWM signal generation circuit generates a PWM signal according to the output, a synthesizing circuit synthesizes the output of a power switch circuit for determining an energized phase to a motor coil and the output signal of the PWM signal generation circuit, and PWM operation of a first state and a second state is repeated to control current supply to the motor coil. The first state enables current supply to the motor coil when the switching element on one side is conducting, the switching element on the other side is nonconducting, and the current detecting switching element is conducting. The second state brings the current detecting switching element out of conduction and brings into conduction all the switching elements making a bridge connection in an energizing polarity switch circuit.

摘要翻译： 电流检测开关元件连接到具有桥接连接的开关元件的输出电路，响应于转矩指令信号由电流检测电路检测流向开关元件的电流，PWM信号产生电路根据 对于输出，合成电路合成用于确定与电动机线圈的通电相位的电力开关电路的输出和PWM信号生成电路的输出信号，并且重复第一状态和第二状态的PWM操作以控制 电流线圈供电。 当一侧的开关元件导通时，第一状态使得能够向电动机线圈供电，另一侧的开关元件不导通，并且电流检测开关元件导通。 第二状态使电流检测开关元件导通，并且使得在通电极性开关电路中形成桥连接的所有开关元件导通。

公开(公告)号：US07432678B2

公开(公告)日：2008-10-07

申请号：US11560427

申请日：2006-11-16

申请人： Tomoharu Yokouchi ,  Keisuke Kuroda

发明人： Tomoharu Yokouchi ,  Keisuke Kuroda

IPC分类号： H02P7/00 ,  H02P27/04

CPC分类号： H02P6/04 ,  H02P6/28 ,  H02P23/20

摘要： A motor driving apparatus includes a speed control circuit for outputting a speed control signal on the basis of a target speed command and rotating speed information of a motor, a PWM signal generating circuit for generating and outputting a PWM signal on the basis of the speed control signal, a switching circuit for feeding power to motor windings on the basis of the PWM signal, and a protection circuit including a full torque detecting circuit for detecting a full torque status in which the speed control signal is a signal for instructing maximum torque. The protection circuit outputs a signal for stopping the switching circuit when the full torque detecting circuit detects a full torque status continuously for a specified time.

摘要翻译： 电动机驱动装置包括：速度控制电路，用于根据目标速度指令和电动机的转速信息输出速度控制信号; PWM信号发生电路，用于基于速度控制产生并输出PWM信号 信号，基于PWM信号向电动机绕组供电的开关电路，以及包括用于检测速度控制信号是用于指示最大转矩的信号的全转矩状态的全转矩检测电路的保护电路。 当全转矩检测电路在一定时间内连续检测到全转矩状态时，保护电路输出用于停止开关电路的信号。

公开(公告)号：US20050047185A1

公开(公告)日：2005-03-03

申请号：US10924939

申请日：2004-08-25

申请人： Tomoharu Yokouchi

发明人： Tomoharu Yokouchi

IPC分类号： H02P27/06 ,  H02P8/12 ,  H02M3/335

CPC分类号： H02M7/53875 ,  H02M2001/0009 ,  H02M2003/1555 ,  H02P8/12

摘要： A current detecting switching element is connected to an output circuit having switching elements making a bridge connection, current flowing to the switching element is detected by a current detection circuit in response to a torque command signal, a PWM signal generation circuit generates a PWM signal according to the output, a synthesizing circuit synthesizes the output of a power switch circuit for determining an energized phase to a motor coil and the output signal of the PWM signal generation circuit, and PWM operation of a first state and a second state is repeated to control current supply to the motor coil. The first state enables current supply to the motor coil when the switching element on one side is conducting, the switching element on the other side is nonconducting, and the current detecting switching element is conducting. The second state brings the current detecting switching element out of conduction and brings into conduction all the switching elements making a bridge connection in an energizing polarity switch circuit.

摘要翻译： 电流检测开关元件连接到具有桥接连接的开关元件的输出电路，响应于转矩指令信号由电流检测电路检测流向开关元件的电流，PWM信号产生电路根据 对于输出，合成电路合成用于确定与电动机线圈的通电相位的电力开关电路的输出和PWM信号生成电路的输出信号，并且重复第一状态和第二状态的PWM操作以控制 电流线圈供电。 当一侧的开关元件导通时，第一状态使得能够向电动机线圈供电，另一侧的开关元件不导通，并且电流检测开关元件导通。 第二状态使电流检测开关元件导通，并且使得在通电极性开关电路中形成桥连接的所有开关元件导通。

公开(公告)号：US06873125B2

公开(公告)日：2005-03-29

申请号：US10446376

申请日：2003-05-28

申请人： Toshiaki Seima ,  Tomoharu Yokouchi

发明人： Toshiaki Seima ,  Tomoharu Yokouchi

IPC分类号： H02P6/08 ,  H02P1/40 ,  H02P6/00 ,  H02P6/18 ,  H02P6/20 ,  H02P6/24 ,  H02P7/00 ,  H02P27/06 ,  H02P27/08

CPC分类号： H02P27/08 ,  H02P1/40

摘要： A motor driving apparatus includes a pulse-width modulator and a PWM frequency switch for switching a carrier frequency of the modulator. The PWM frequency switch changes a carrier frequency in a start-up period of the motor to another frequency when the motor enters into a regular rotation. The carrier frequency in the start-up period is set at a lower level than that in the regular rotation period, so that the driving apparatus can reduce power-loss generated in the start-up period by switching actions of respective driving elements forming a first and a second drivers. In the regular rotation period, the driving apparatus performs PWM-driving with a high enough carrier frequency, so that the motor driven by this driving apparatus can realize accurate rotation.

摘要翻译： 电动机驱动装置包括用于切换调制器的载波频率的脉冲宽度调制器和PWM频率开关。 当电机进入正常旋转时，PWM频率开关将马达启动时段的载波频率改变为另一个频率。 启动周期中的载波频率被设定在比正常旋转周期的载波频率更低的水平，从而驱动装置可以通过切换各个驱动元件的动作来减少启动周期中产生的功率损耗 和第二个驱动程序。 在常规旋转周期中，驱动装置以足够高的载波频率执行PWM驱动，使得由该驱动装置驱动的马达能够实现精确的旋转。

公开(公告)号：US08446005B2

公开(公告)日：2013-05-21

申请号：US13224056

申请日：2011-09-01

申请人： Tomoharu Yokouchi

发明人： Tomoharu Yokouchi

IPC分类号： H01L23/48

CPC分类号： H01L23/4824 ,  H01L24/05 ,  H01L24/06 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/02166 ,  H01L2224/04042 ,  H01L2224/05552 ,  H01L2224/05554 ,  H01L2224/061 ,  H01L2224/48091 ,  H01L2224/48465 ,  H01L2224/49113 ,  H01L2924/00014 ,  H01L2924/13091 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

摘要： A semiconductor device includes: a first transistor; a second transistor; an interlayer insulating film covering the transistors; a rectangular-shaped first bus formed on the interlayer insulating film and connected to first source/drain regions; a rectangular-shaped second bus formed on the interlayer insulating film with spacing from the first bus and connected to third source/drain regions; an inter-bus interconnect formed between the first and second buses for connecting these buses; a first contact pad provided on the first bus, to which a wire is connected; and a second contact pad provided on the second bus, to which a wire is connected. The inter-bus interconnect is in contact with part of the side of the first bus facing the second bus and part of the side of the second bus facing the first bus. The first and second contact pads are respectively in contact with part of the first and second buses.

摘要翻译： 一种半导体器件包括：第一晶体管; 第二晶体管; 覆盖晶体管的层间绝缘膜; 形成在层间绝缘膜上并连接到第一源极/漏极区的矩形第一总线; 形成在所述层间绝缘膜上的与所述第一总线间隔开并连接到第三源极/漏极区的矩形第二总线; 形成在第一和第二总线之间的用于连接这些总线的总线间互连; 设置在第一总线上的第一接触焊盘，电线被连接到该第一接触焊盘; 以及设置在第二总线上的第二接触焊盘，电线被连接到该第二接触焊盘。 总线间互连与面向第二总线的第一总线的一侧的一部分接触，而第二总线的面向第一总线的一部分侧面接触。 第一和第二接触垫分别与第一和第二总线的一部分接触。