公开(公告)号：US4406981A

公开(公告)日：1983-09-27

申请号：US318879

申请日：1981-11-06

Applicant: Yasuaki Watanabe ,  Yukio Okabe

Inventor： Yasuaki Watanabe ,  Yukio Okabe

IPC: H02P3/10

CPC classification number: H02P3/10

Abstract: A rotation stopping apparatus for a motor comprises a frequency signal generating circuit for generating a signal having a frequency according to a rotational speed of a motor, a voltage forming circuit for forming a voltage according to the frequency of the frequency signal from the frequency signal generating circuit, a motor driving circuit for supplying a forward direction current to the motor upon rotation of the motor and supplying a reverse direction current to the motor when the rotation of the motor is stopped to perform a damping operation with respect to the rotation of the motor, a detecting circuit for detecting that a voltage from the voltage forming circuit has become below a predetermined threshold voltage, and an interrupting circuit for interrupting the supply of the reverse direction current to the motor by the motor driving circuit according to the detected result obtained from the detecting circuit.

Abstract translation: 一种用于电动机的旋转停止装置包括：频率信号发生电路，用于产生具有根据电动机的转速的频率的信号;电压形成电路，用于根据来自频率信号产生的频率信号的频率形成电压; 电动机驱动电路，用于在电动机旋转时向电动机提供正向电流，并且当电动机的旋转停止时向电动机提供反向电流以对电动机的转动进行阻尼操作 用于检测来自电压形成电路的电压已经变得低于预定阈值电压的检测电路，以及用于通过电动机驱动电路根据检测结果中断向电机提供反向电流的中断电路 检测电路。

公开(公告)号：US4405883A

公开(公告)日：1983-09-20

申请号：US287985

申请日：1981-07-29

Applicant: Kazutaka Ashida

Inventor： Kazutaka Ashida

IPC: G05D3/12 ,  G11B15/02 ,  G11B15/48 ,  H02P3/10 ,  H01J9/395

CPC classification number: G11B15/48 ,  G11B15/026

Abstract: An apparatus for rapidly and positively stopping the rotations of first and second tape reels which are driven independently, without introducing slack or damages to a recording medium of a tape form wound by the first and second tape reels. The control system for this apparatus uses digital signals.

Abstract translation: 一种用于快速且积极地停止第一和第二磁带盘的旋转的装置，其被独立地驱动，而不会引起松弛或损坏由第一和第二磁带卷绕的磁带形式的记录介质。 该装置的控制系统使用数字信号。

公开(公告)号：US4365188A

公开(公告)日：1982-12-21

申请号：US177772

申请日：1980-08-13

Applicant: Arthur Walter

Inventor： Arthur Walter

IPC: F16P1/00 ,  E05F15/44 ,  H02P3/10 ,  H02P3/20

CPC classification number: E05F15/44 ,  E05Y2900/132

Abstract: Closing and opening movements are effected by a reversible motor M. The motor M receives its power from a supply U via a feed circuit which includes switch contacts r.sub.1, r.sub.2 controlled by a relay R. The arrangement is such that a closing movement takes place when the relay is energized and an opening movement when the relay is deenergized. To select these two movements there is provided a selector switch S in the feed circuit which has two operative positions and an intermediate neutral position. The excitation winding of the relay R is included in a monitoring circuit in parallel with a strip-like safety switch SL. The strip-like safety switch SL is positioned in the path of the closing movement and has two strip-like contact bands 1, 2 which are pressed together if an object should become trapped in the path of the closing movement. If this occurs the excitation winding of the relay is short circuited and it automatically reverses the motor to convert the closing movement into an opening movement. A follower contact F is associated with the selector switch S and serves to short circuit the monitoring circuit during the opening movement so that it is only connected operatively in parallel with the feed circuit during the closing movement. The series arrangement of the contact strip 1, the excitation winding of the relay R and the contact strip 2 means that a breakage in either of the contact strips, i.e. a faulty safety sensor, will prevent potentially dangerous closing movements from taking place. A number of alternative embodiments are shown including variations using DC, single phase and three phase motors.

Abstract translation: 关闭和打开运动由可逆电动机M实现。电动机M通过馈电电路从电源U接收电力，馈电电路包括由继电器R控制的开关触点r1，r2。这种布置使得闭合运动发生在 当继电器断电时，继电器通电并打开运动。 为了选择这两个动作，在进给回路中设置有选择开关S，其具有两个操作位置和中间中间位置。 继电器R的励磁绕组与带状安全开关SL并联地包含在监视电路中。 带状安全开关SL位于关闭运动的路径中，并且具有两个带状接触带1,2，如果物体被困在关闭运动的路径中，则它们被压在一起。 如果发生这种情况，继电器的励磁绕组短路，并自动反转电机，将闭合运动转换为开启运动。 随动触点F与选择开关S相关联，并且用于在打开运动期间使监视电路短路，使得其在关闭运动期间仅与运行电路并联连接。 接触条1，继电器R的励磁绕组和接触条2的串联布置意味着接触条之一的断裂，即有故障的安全传感器，将会防止潜在的危险闭合运动发生。 示出了多个替代实施例，其包括使用DC，单相和三相电动机的变化。

公开(公告)号：US4329631A

公开(公告)日：1982-05-11

申请号：US154308

申请日：1980-05-29

Applicant: Helmut Betsch ,  Horst Goertler ,  Karl-Heinz Liedtke ,  Hans Prohaska ,  Horst Rachner

Inventor： Helmut Betsch ,  Horst Goertler ,  Karl-Heinz Liedtke ,  Hans Prohaska ,  Horst Rachner

IPC: B60S1/08 ,  H02P3/12 ,  H02P29/00 ,  A47L1/02 ,  B60S1/02 ,  H02P3/10

CPC classification number: B60S1/08

Abstract: A windshield wiper control circuit is described wherein the time at which the wiper motor is deenergized after an operating switch has been switched off is determined by the wiper speed. The parking position of the wiper is thereby independent of the condition of the windshield.

Abstract translation: 描述了一种挡风玻璃刮水器控制电路，其中在操作开关已经关闭之后刮水器电动机断电的时间由刮水器速度确定。 因此，刮水器的停车位置与挡风玻璃的状况无关。

公开(公告)号：US4139808A

公开(公告)日：1979-02-13

申请号：US831869

申请日：1977-09-09

Applicant: Nobuyoshi Matsumura

Inventor： Nobuyoshi Matsumura

IPC: D05B69/22 ,  H02P7/292 ,  H02P3/10

CPC classification number: D05B69/22 ,  H02P7/293 ,  Y10S388/917

Abstract: A sewing machine driven by a motor which is adapted to be energized by an alternate current power supply and is phase controlled by means of thyristors. In a normal operating mode the conduction phase of the thyristors is made variable as a function of the extent of the depression of a foot controlled pedal, whereas in a low constant speed mode the thyristors are made conductive at a predetermined phase. The motor is coupled to a main shaft which is provided with a magnet located at a predetermined position, while a bracket arm is provided with a reed switch located at a predetermined position, such that if and when the foot controlled pedal is released, the reed switch is actuated to trigger the thyristors for reverse braking of the motor as a function of the counter electromotive force of the motor. Preferably, a timer is provided for interrupting the power supply after the lapse of a predetermined time period after the foot controlled pedal is released.

Abstract translation: 由电动机驱动的缝纫机，其适于由交流电源供电并通过晶闸管相位控制。 在正常操作模式中，晶闸管的导通相位根据脚踏控制踏板的压下程度而变化，而在低恒定速度模式下，晶闸管以预定的相位导通。 电动机联接到主轴，该主轴设置有位于预定位置的磁体，而支架臂设置有位于预定位置的簧片开关，使得如果脚踏控制踏板被释放，则当簧片被释放时，簧片 开关被致动以触发晶闸管，用于电动机的反向制动作为电动机的反电动势的函数。 优选地，提供定时器，用于在脚踏踏板释放之后经过预定时间段之后中断电源。

公开(公告)号：US4127799A

公开(公告)日：1978-11-28

申请号：US823654

申请日：1977-08-11

Applicant: Tsutomu Nakamura ,  Ryuichi Koike

Inventor： Tsutomu Nakamura ,  Ryuichi Koike

IPC: H02P6/24 ,  G11B19/20 ,  G11B19/22 ,  G11B19/28 ,  H02K29/14 ,  H02P3/06 ,  H02P3/10

CPC classification number: H02P3/06 ,  G11B19/2009 ,  G11B19/22 ,  G11B19/28 ,  H02K29/14

Abstract: A disc record player in which a turntable is driven by a motor comprising a rotor magnet having plural magnetic poles arranged separately along the periphery of the turntable, stator coils disposed in the magnetic field of the rotor magnet and Hall-effect elements sequentially coupled magnetically to the poles of the rotor magnet for generating output signals having polarities corresponding to the polarities of the poles of the rotor magnet, and causing the rotor magnet to rotate by supplying the output signals of the Hall-effect elements to the stator coils, wherein a first and a second speed detecting coils for generating signals having phases different from each other are disposed in the magnetic field of the rotor magnet, wherein the output signals of the first and second speed detecting coils respectively turn the gate circuit off and on and when the turntable is to be stopped, the gate circuit is turned on by the output signal of the second speed detecting coil, and wherein the rotation of the turntable is damped by controlling the polarities of the output signals of the Hall-effect elements with the output signal of the gate circuit and thereby causing the stator coils to generate the magnetic flux to rotate the rotor magnet in the reverse direction.

Abstract translation: 一种唱盘播放器，其中转盘由电动机驱动，该电动机包括转子磁体，转子磁体具有沿转台周边分开设置的多个磁极，定子线圈设置在转子磁体的磁场中，霍尔效应元件依次磁耦合耦合到 转子磁体的极，用于产生具有对应于转子磁体的极极性的极性的输出信号，并且通过将霍尔效应元件的输出信号提供给定子线圈使转子磁体旋转，其中第一 并且在转子磁体的磁场中设置用于产生彼此相位不同的信号的第二速度检测线圈，其中第一和第二速度检测线圈的输出信号分别关闭和打开门电路，并且当转台 要停止，门电路被第二速度检测线圈的输出信号接通，并且其中r 通过利用门电路的输出信号控制霍尔效应元件的输出信号的极性，从而使定子线圈产生磁通量使转子磁体沿相反方向旋转，从而阻尼转台的转动。

公开(公告)号：US4104571A

公开(公告)日：1978-08-01

申请号：US742227

申请日：1976-11-16

Applicant: David Gurwicz ,  Albert Everett Sloan

Inventor： David Gurwicz ,  Albert Everett Sloan

IPC: H02P3/10 ,  H02P3/12

CPC classification number: H02P3/10

Abstract: A pulse controller for a reversible d.c. series motor is provided, in place of the conventional freewheel diode across the armature and field and plugging diode across the armature, with a unidirectional current path connected across the armature and field and containing sufficient impedance to prevent build-up of motor current in interpulse periods when the motor is in a plugging mode, and switch means for shorting out the impedance during normal motoring.

Abstract translation: 用于可逆直流的脉冲控制器 提供串联电动机，代替贯穿电枢的电枢和励磁和封装二极管的常规续流二极管，其中单向电流路径跨过电枢和电场连接并且包含足够的阻抗以防止在脉冲间期间积聚电动机电流 当电动机处于堵塞模式时，以及用于在正常电动期间短路阻抗的开关装置。

公开(公告)号：US4028597A

公开(公告)日：1977-06-07

申请号：US487890

申请日：1974-07-12

Applicant: Michael J. Delaney ,  Hiram G. Gilbert

Inventor： Michael J. Delaney ,  Hiram G. Gilbert

IPC: B60L15/20 ,  H02P3/10 ,  H02P5/68 ,  H02P7/29 ,  H02P3/00

CPC classification number: H02P7/29 ,  B60L15/2036 ,  H02P3/10 ,  H02P5/68 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/648 ,  Y02T10/7275

Abstract: A battery-powered thyristor-controlled lift truck traction motor control system includes simple and economical means for providing plugging torque in a continuous or proportional manner. A dual-motor drive system disclosed allows series motors to be operated in parallel from a single thyristor control system during both acceleration and plugging conditions, and allows the two motors to be operated at widely different speeds without large currents circulating between them.

Abstract translation: 电池供电的可控硅控制起重车牵引电动机控制系统包括以连续或成比例的方式提供堵塞扭矩的简单而经济的方法。 所公开的双电动机驱动系统允许串联电动机在加速和堵塞条件期间从单个晶闸管控制系统并行操作，并且允许两个电动机以不同的速度以大的电流在它们之间循环而运行。

公开(公告)号：US3931556A

公开(公告)日：1976-01-06

申请号：US406374

申请日：1973-10-15

Applicant: Itsuki Ban ,  Manabu Shiraki

Inventor： Itsuki Ban ,  Manabu Shiraki

IPC: H02P3/08 ,  H02P3/10 ,  H02P3/12 ,  H02P6/14 ,  H02P7/06 ,  H02P7/288 ,  H02P7/29 ,  H02P23/00 ,  H02K29/00

CPC classification number: H02P6/14 ,  H02P23/22 ,  H02P7/291

Abstract: For driving a direct-current motor in tune with the frequency of an external synchronizing signal regardless of any abrupt change in the load or in the synchronizing signal frequency, a rotor position signal is produced in the form of a succession of pulses in phased relationship to the rotation of the motor. A first control circuit is provided to initiate the supply of electrical energy from a DC power supply to the motor in response to each pulse of the synchronizing signal and to suspend the supply of electrical energy in response to each pulse of the rotor position signal. This first control circuit is combined with second and third control circuits adapted to modify the operation of the first control circuit in event the motor has fallen out of synchronism. Thus, when the actual speed of the motor becomes higher than the required synchronous speed, the second control circuit operates to permit the motor to be fed continuously from the DC power supply, and when the actual motor speed becomes lower than the synchronous speed, the third control circuit operates to prevent the motor from being fed from the DC power supply, until the motor is pulled back into synchronous operation. Several other embodiments are disclosed.

Abstract translation: 为了驱动与外部同步信号的频率一致的直流电动机，无论负载的突然变化或同步信号频率如何，转子位置信号以一系列脉冲的形式产生，分阶段相关 电机的旋转。 提供第一控制电路以响应于同步信号的每个脉冲启动从DC电源向电动机的电能供应，并且响应于转子位置信号的每个脉冲暂停供应电能。 该第一控制电路与第二和第三控制电路组合，适于在电动机已经失去同步的情况下修改第一控制电路的操作。 因此，当电动机的实际速度高于所需的同步速度时，第二控制电路运行以允许电动机从直流电源连续供电，并且当实际的电动机转速低于同步转速时， 第三控制电路用于防止电动机从直流电源馈送，直到电动机被拉回到同步操作。 公开了几个其它实施例。

公开(公告)号：US3882365A

公开(公告)日：1975-05-06

申请号：US37127073

申请日：1973-06-18

Applicant: GEN ELECTRIC

Inventor： YEMINGTON CHARLES R

IPC: H02P3/14 ,  H02P7/288 ,  H02P7/292 ,  H02P7/295 ,  H02P3/10

CPC classification number: H02P3/14 ,  H02P7/293

Abstract: A control circuit for a direct current motor which is to be operable from a source of alternating current power including a full wave controlled rectifier bridge circuit which supplies electrical power to the motor through appropriate circuit means selectively in one of two directions so as to control the direction of rotation of the motor. A braking circuit is also included which upon activation senses the direction of motor rotation and responds to this sensing by causing, in association with the switching means, the reversal of power application to the motor to bring the motor to a stop in a regenerative mode.

Abstract translation: 一种用于直流电动机的控制电路，其可从包括全波控制整流桥电路的交流电源操作，该电路通过适当的电路装置在两个方向中的一个方向上选择性地向电动机供电，以便控制 电机的旋转方向。 还包括制动电路，其在启动时感测到电动机旋转的方向，并通过与开关装置相关联地引起对电动机的功率的反转以使电动机在再生模式中停止来对该感测进行响应。