公开(公告)号：US5200729A

公开(公告)日：1993-04-06

申请号：US479301

申请日：1990-02-07

申请人： Katsuji Soeda ,  Shuzo Otsuki ,  Masaru Wada

发明人： Katsuji Soeda ,  Shuzo Otsuki ,  Masaru Wada

IPC分类号： H01F7/02 ,  H01F13/00 ,  H02K1/27 ,  H02K15/03 ,  H02K41/03

CPC分类号： H01F13/003 ,  H01F7/021 ,  H02K1/2733 ,  H02K1/2793 ,  H02K15/03 ,  H02K41/03

摘要： Disclosed is a permanent magnet which is suitable for use for a field system of an electric motor or the like and which is constituted by a single piece of magnetic material in which S and N poles are alternately continuously formed through non-magnetic flux regions or weak magnetic flux regions interposed therebetween, and further disclosed is a magnetization apparatus for magnetizing such a permanent magnet. The magnetization apparatus comprises a first magnetic flux generation unit provided on one surface of a single piece of magnetic material for generating N-pole magnetic flux, a second magnetic flux generation unit provided adjacently to the first magnetic flux generation unit on the one surface for generating S-pole magnetic flux, and a third magnetic flux generation unit provided between the first and second magnetic flux generation unit on the one surface for passing therethrough part of magnetic flux generated by the first and second magnetic flux generation unit and for generating magnetic flux for canceling the magnetic flux passing through the third magnetic flux generation unit, whereby N and S poles are formed in domains of an object to be magnetized opposite to the first and second magnetic flux generation units and non-magnetic flux regions or weak magnetic flux regions are formed in domains of the object to be magnetized opposite to the third magnetic flux generation unit.

摘要翻译： 公开了一种适用于电动机等的场系的永磁体，其由单片磁性材料构成，其中S和N极通过非磁通区域或弱磁性交替连续形成 介于其间的磁通区域，并且还公开了一种用于磁化这种永磁体的磁化装置。 磁化装置包括：第一磁通产生单元，设置在单个磁性材料的一个表面上，用于产生N极磁通;第二磁通量产生单元，设置在第一磁通量产生单元的一个表面上，用于产生 S极磁通和第一磁通产生单元，其设置在一个表面上的第一和第二磁通产生单元之间，用于通过由第一和第二磁通产生单元产生的磁通的部分，并产生用于 抵消通过第三磁通产生单元的磁通量，从而在与第一和第二磁通量产生单元和非磁通区域或弱磁通量区域相对的待磁化对象的区域中形成N和S极 形成在与第三磁通产生单元相对的待磁化对象的域中。

公开(公告)号：US4170749A

公开(公告)日：1979-10-09

申请号：US826650

申请日：1977-08-22

申请人： Katsuji Soeda

发明人： Katsuji Soeda

IPC分类号： H02P7/295 ,  H02P7/292 ,  H02P5/16

CPC分类号： H02P7/293 ,  Y10S388/919

摘要： A speed control circuit for a series motor is disclosed which keeps the rotational speed of a motor constant by detecting the slight change of an electromotive force caused by the change of the load motor. A gate signal from a trigger signal generating element is provided to the base of a thyristor connected in series with the series motor. The gate signal is controlled by a control circuit.

摘要翻译： 公开了一种用于串联电动机的速度控制电路，其通过检测由负载电动机的变化引起的电动势的轻微变化来保持电动机的转速恒定。 来自触发信号产生元件的门信号被提供给与串联电动机串联连接的晶闸管的基极。 门信号由控制电路控制。

公开(公告)号：US4168455A

公开(公告)日：1979-09-18

申请号：US811625

申请日：1977-06-30

申请人： Katsuji Soeda ,  Fumio Sakuma ,  Mitsuhiro Ooyama

发明人： Katsuji Soeda ,  Fumio Sakuma ,  Mitsuhiro Ooyama

IPC分类号： H02P7/292 ,  H02P5/00

CPC分类号： H02P7/293 ,  Y10S388/919

摘要： A speed control system for a motor comprising a main motor circuit supplying motor current to the motor from an A.C. power source through a semiconductor element provided with a control electrode, trigger voltage supplying means supplying trigger voltage to the control electrode of the semiconductor element, motor voltage detecting means for detecting voltage induced in the motor, and automatically variable resistance means having its resistance value varied automatically depending on the detected motor voltage. In the system, the trigger voltage supplied by the trigger voltage supplying means is controlled depending on the variation in the resistance value of the automatically variable resistance means, and the firing angle of the semiconductor element is retarded in response to an increase in the detected motor voltage and advanced in response to a decrease in the detected motor voltage.

摘要翻译： 一种用于电动机的速度控制系统，包括主电动机电路，其通过设置有控制电极的半导体元件从AC电源向电动机提供电动机电流，向半导体元件的控制电极提供触发电压的触发电压供给装置 用于检测电动机中感应的电压的电压检测装置，以及其电阻值根据检测到的电动机电压自动变化的自动可变电阻装置。 在该系统中，由触发电压供给装置提供的触发电压根据自动可变电阻装置的电阻值的变化而被控制，并且半导体元件的触发角随着检测到的电动机的增加而延迟 响应于检测到的电动机电压的降低而升高。

公开(公告)号：US4085692A

公开(公告)日：1978-04-25

申请号：US731686

申请日：1976-10-12

申请人： Katsuji Soeda ,  Fumio Sakuma ,  Mitsuhiro Oyama

发明人： Katsuji Soeda ,  Fumio Sakuma ,  Mitsuhiro Oyama

IPC分类号： D05B69/18 ,  D05B69/20 ,  D05B69/22 ,  H02P3/08 ,  H02P7/295

CPC分类号： D05B69/20

摘要： A motor speed control apparatus for an electrically-driven sewing machine capable of effecting single stitch comprises a main motor circuit for supplying a motor current to a motor from an AC power supply through a main switch and a semiconductor element with a controlled electrode, a first control means for controlling the semiconductor element in order to effect normal operation, a controller adapted to change between its first and second state so as to control the speed of the motor continuously when the first control means is energized, a second control means for controlling the semiconductor element for effecting single stitch, and a change-over means for changing over the operation between the first and second control means. The second control means includes means for setting the trigger voltage for conducting the semiconductor element, a switching element coupled with the trigger-voltage setting means, a bias means for energizing the switching element, and a charge-discharge circuit. The bias means has a needle position detector means for detecting the position of a needle bar. The bias means supplies the switching element with a first bias sufficient to turn the switching element on when the needle position detector means detects the absence of the needle bar at the predetermined position, and supplies the switching element with a second bias insufficient to turn the switching element on when the needle position detector means detects the fact that the needle bar is at the predetermined position. The charge-discharge circuit renders the bias means in such a state as to supply an insufficient bias to turn the switching element on for a predetermined period of time after the time point at which the controller is set in the states between the second states and the predetermined state between the first and second states, which the conduction of the switching means renders the trigger voltage setting means ineffective.

公开(公告)号：US4274037A

公开(公告)日：1981-06-16

申请号：US48369

申请日：1979-06-14

申请人： Katsuji Soeda

发明人： Katsuji Soeda

IPC分类号： H02P7/29 ,  H02P5/16 ,  H02P3/08

CPC分类号： H02P7/2913 ,  Y10S388/919

摘要： A speed control system for a motor comprises a main motor circuit for supplying the motor current to the motor from an AC power supply via a main switch, a full-wave rectifier circuit and a semiconductor element with a control electrode, variable voltage setting means connected to the full-wave rectifier circuit, charge-discharge element connected to the variable voltage setting means and impressed with a voltage set by the variable voltage setting means, and a trigger voltage supply element conducted for releasing the charges charged in the charge-discharge element to the control electrode of the semiconductor element as a trigger voltage when the charge voltage of the charge-discharge element reaches a predetermined level. The speed control system further comprises means for detecting the electromotive force of the motor and automatically variable resistance means connected to the charge-discharge element and having its resistance value automatically varied in response to the electromotive force of the motor detected by the motor electromotive force detector means. The automatically variable resistance means controls the charging current to the charge-discharge element in accordance with the resistance value thereof. The conduction phase of the semiconductor element is retarded with an increase in motor electromotive force and advanced with a decrease in motor electromotiveforce.

摘要翻译： 一种用于电动机的速度控制系统包括主电动机电路，用于通过主开关从交流电源向电动机提供电动机电流，全波整流电路和具有控制电极的半导体元件，连接的可变电压设定装置 连接到可变电压设定装置并被可变电压设定装置设定的电压施加的全波整流电路的充放电元件，以及用于释放充电在充放电元件中的电荷的触发电压供给元件 作为充放电元件的充电电压达到预定电平时的作为触发电压的半导体元件的控制电极。 速度控制系统还包括用于检测电动机的电动势的装置和连接到充放电元件的自动可变电阻装置，并且其电阻值响应于由电动机电动势检测器检测到的电动机的电动势而自动变化 手段。 自动可变电阻装置根据其电阻值控制到充放电元件的充电电流。 随着电机电动势的增加，半导体元件的导通相位延迟，并随着电动机电动势的减小而前进。

公开(公告)号：US4246521A

公开(公告)日：1981-01-20

申请号：US022314

申请日：1979-03-20

申请人： Katsuji Soeda ,  Mitsuhiro Oyama ,  Fumio Sakuma

发明人： Katsuji Soeda ,  Mitsuhiro Oyama ,  Fumio Sakuma

IPC分类号： H02P7/295 ,  H02P7/292 ,  H02P5/16

CPC分类号： H02P7/293 ,  Y10S388/918

摘要： There is provided a DC motor speed control system comprising a main motor circuit which supplies a motor current from an AC source through a full-wave rectifying circuit and a semiconductor element having a control electrode to a DC motor, a manually variable voltage setting means which is connected with the full-wave rectifying circuit, a charging circuit which is connected with the manually variable voltage setting means, a switching element having a control element which is connected with the charging circuit and, when the charged voltage in the charging circuit reaches a predetermined value, is made conductive to discharge the charging circuit thereby to supply a discharge current to the semiconductor element as a triggen current, a constant voltage element which is connected with the full-wave rectifying circuit, and a detecting means which detects the counter electromotive force induced in the motor. The constant voltage element and the detecting means are connected in series to form a series circuit the terminal voltage of which is applied to the control electrode of the switching element, and the predetermined voltage value for conduction of the switching element being variable in response to the counter electromotive force so as to delay the conduction angle of the semiconductor element for the increased counter electromotive force while to advance the conduction angle of the semiconductor element for the decreased counter electromotive force.

摘要翻译： 提供了一种直流电动机速度控制系统，包括：主电动机电路，其通过全波整流电路将来自AC电源的电动机电流和具有控制电极的半导体元件提供给DC电动机;手动可变电压设定装置， 与全波整流电路连接，充电电路与手动可变电压设定装置连接，开关元件具有与充电电路连接的控制元件，并且当充电电路中的充电电压达到 使预定值导通以对充电电路进行放电，从而向半导体元件提供作为三相电流的放电电流，与全波整流电路连接的恒压元件和检测反电动势的检测装置 在电机中引起的力。 恒压元件和检测装置串联连接以形成其端电压施加到开关元件的控制电极的串联电路，并且用于开关元件的导通的预定电压值响应于 反电动势，以便延长半导体元件的导通角以增加反电动势，同时提高半导体元件的导通角以减小反电动势。

公开(公告)号：US4228383A

公开(公告)日：1980-10-14

申请号：US974116

申请日：1978-12-28

申请人： Katsuji Soeda ,  Mitsuhiro Oyama ,  Fumio Sakuma ,  Tadashi Nakajima

发明人： Katsuji Soeda ,  Mitsuhiro Oyama ,  Fumio Sakuma ,  Tadashi Nakajima

IPC分类号： H02P25/04 ,  H02P25/14 ,  H02P27/02 ,  H02P5/40 ,  H02P7/28

CPC分类号： H02P25/14

摘要： A speed control circuit arrangement for controlling a rotational speed of an AC commutator motor by an AC controlled rectifier element. The speed control circuit arrangement comprises a pulse transformer which is connected at the secondary winding to the control electrode of the AC controlled rectifier element and one of two main electrodes of the controlled rectifier element and supplies a trigger pulse to the control electrode, a variable resistor for adjusting the rotational speed of the motor, a first capacitor connected at one end through the variable resistor to the other main electrode and at the other end to one end of an AC power source, a pulse generating element connected across said first capacitor with the primary winding of the pulse transformer intervening therebetween, and a first resistor connected at one end to the one main electrode and at the other end to the other end of the AC power source through the first capacitor. With such a construction, an inductive voltage regenerated in the armature of the motor (hereinafter referred to as a flash voltage) is effectively used to perform a stable operation of the AC commutator motor at a low speed.

摘要翻译： 一种速度控制电路装置，用于通过交流控制整流元件控制交流换向马达的转速。 速度控制电路装置包括脉冲变压器，该脉冲变压器在次级绕组处连接到可控整流元件的控制电极和可控整流元件的两个主电极中的一个，并向控制电极提供触发脉冲，可变电阻器 用于调节电动机的转速;第一电容器，其一端通过可变电阻器连接到另一主电极，另一端连接到交流电源的一端;脉冲发生元件，连接在所述第一电容器与 介于其间的脉冲变压器的初级绕组，以及第一电阻器，其一端通过第一电容器连接到一个主电极，另一端连接到交流电源的另一端。 通过这样的结构，在电动机的电枢中再生的感应电压（以下称为闪光电压）被有效地用于以低速执行AC换向器电动机的稳定运行。

公开(公告)号：US4952860A

公开(公告)日：1990-08-28

申请号：US375305

申请日：1989-07-03

申请人： Katsuji Soeda

发明人： Katsuji Soeda

IPC分类号： H02P6/18 ,  H02P6/16 ,  H02P6/20

CPC分类号： H02P6/16

摘要： A control system for a motor is disclosed in which the position of a magnetic pole of the rotor of the motor is detected to produce a position signal, a multi-phase rectangular wave signal is produced by an oscillation circuit, and the frequency of the position signal is multiplied to obtain a multiple frequency signal. A stepwise wave changing stepwisely, with the same frequency as the multiple frequency, is generated. A signal corresponding to the position signal or a phase difference signal representing a phase difference between the multi-phase rectangular wave signal and the position signal is selectively applied as a drive signal to the motor by a drive signal switching circuit. A first signal is produced before the stepwise wave reaches a predetermined level and a second signal is produced when the predetermined level is reached. The drive signal switching circuit produces a signal corresponding to the position signal in response to the first signal thereby to drive the motor in brushless mode, and a signal corresponding to the phase difference signal in response to the second signal thereby to drive the motor in sync mode.

摘要翻译： 公开了一种用于电动机的控制系统，其中检测到电动机的转子的磁极的位置以产生位置信号，由振荡电路产生多相矩形波信号，并且位置的频率 信号相乘以获得多频信号。 产生与多个频率相同频率的逐步逐波变化。 通过驱动信号切换电路，选择性地将与位置信号相对应的信号或表示多相矩形波信号与位置信号之间的相位差的相位差信号作为驱动信号施加到电动机。 在阶跃波达到预定电平之前产生第一信号，并且当达到预定电平时产生第二信号。 驱动信号切换电路响应于第一信号产生对应于位置信号的信号，由此响应于第二信号驱动电动机，并且响应于第二信号，驱动电动机，从而驱动电动机同步 模式。

公开(公告)号：US4804900A

公开(公告)日：1989-02-14

申请号：US188329

申请日：1988-05-04

申请人： Katsuji Soeda

发明人： Katsuji Soeda

IPC分类号： H02P27/06 ,  H02P1/46 ,  H02P1/52 ,  H02P25/02 ,  H02K19/10

CPC分类号： H02P25/024

摘要： A synchronous motor control apparatus includes a polyphase synchronous motor, a frequency adjusting circuit responsive to the closing of a power supply switch to generate a frequency control signal for commanding to linearly increase an oscillation frequency from zero up to a given high frequency, a polyphase rectangular oscillation circuit whose oscillation frequency for polyphase rectangular waves is controlled in accordance with the frequency control signal, an energization phase adjusting circuit for generating a phase control signal in accordance with a signal related to the frequency control signal from the frequency adjusting circuit, an energization phase calculating circuit for controlling the phases of the polyphase rectangular oscillation frequency of the polyphase oscillation circuit, and a drive circuit for amplifying output polyphase rectangular signals of the energization phase calculating circuit and applying the same to a field winding of the motor.

摘要翻译： 同步电动机控制装置包括多相同步电动机，频率调节电路，响应于电源开关的闭合，产生频率控制信号，用于将振荡频率从零线性地增加到给定的高频;多相矩形 振荡电路，其根据频率控制信号控制多相矩形波的振荡频率;通电相位调整电路，用于根据与来自频率调整电路的频率控制信号相关的信号产生相位控制信号;通电阶段 用于控制多相振荡电路的多相矩形振荡频率的相位的计算电路，以及用于放大通电相位计算电路的输出多相矩形信号并将其施加到电机的励磁绕组的驱动电路。

公开(公告)号：US4251796A

公开(公告)日：1981-02-17

申请号：US020840

申请日：1979-03-15

申请人： Katsuji Soeda ,  Mitsuhiro Oyama ,  Fumio Sakuma

发明人： Katsuji Soeda ,  Mitsuhiro Oyama ,  Fumio Sakuma

IPC分类号： H02K23/54 ,  H01C10/38 ,  H02K15/12

CPC分类号： H01C10/38

摘要： A slide-type potentiometer for speed control of electric motors under control of a foot-pedal actuator mechanism comprising an actuating rod reciprocatably movable in the longitudinal directions thereof, a spring member for urging the actuating rod in one of the longitudinal directions, a contact supporting member having an electrical contact secured thereto and mounted on the actuating rod so as to be movable in the longitudinal directions along with the actuating rod, a resistor element positioned such that the electrical contact member is slidably moved on the resistor element upon movement of the actuating rod, and a housing for enclosing the contact supporting member and the resistor element, the housing has a through-hole through which one end portion of the actuating rod extends outwardly.

摘要翻译： 一种用于在脚踏板致动器机构的控制下对电动机进行速度控制的滑动型电位器，包括可在其纵向方向上可往复运动的致动杆，用于沿一个纵向方向推动致动杆的弹簧构件， 构件，其具有固定到其上的电接触件并且安装在致动杆上，以便与致动杆一起在纵向方向上可移动;电阻元件，定位成使得电触头构件在致动器的移动时可滑动地移动到电阻元件上 杆和用于封闭接触支撑构件和电阻元件的壳体，壳体具有通孔，致动杆的一个端部向外延伸。