公开(公告)号：US5010283A

公开(公告)日：1991-04-23

申请号：US464354

申请日：1990-01-12

Applicant: Kimio Kitajima ,  Hiroyuki Kiuchi

Inventor： Kimio Kitajima ,  Hiroyuki Kiuchi

IPC: H02P3/20 ,  H02P3/10

CPC classification number: H02P3/025 ,  H02P3/10

Abstract: A motor control circuit provides reduced stopping time. The circuit utilizes n rotational signals whose relative phase differences are proportional to the rotational speed of the motor. Inverted logic signals are formed of these n signals. Circuitry for discriminating the direction of the motor and for determining from the n signals n-1 and/or n inverted signals, the initial change of any of the signals following a reversal of the motor. Upon determining the initial change, a signal is supplied to the motor drive circuit to cause the motor to de-energized. A specific circuit for holding the motor in a stopped condition is disclosed.

Abstract translation: 电机控制电路减少停机时间。 该电路利用了相对相位差与电动机的转速成比例的n个旋转信号。 反相逻辑信号由这n个信号形成。 用于识别电动机的方向的电路和用于根据n信号n-1和/或n个反相信号确定电动机反转之后的任何信号的初始变化。 在确定初始变化时，向马达驱动电路提供信号以使马达断电。 公开了一种用于将马达保持在停止状态的特定电路。

公开(公告)号：US4804893A

公开(公告)日：1989-02-14

申请号：US48348

申请日：1987-05-11

Applicant: Grant C. Melocik

Inventor： Grant C. Melocik

IPC: B60L15/20 ,  H02P3/10 ,  H02P5/17

CPC classification number: B60L15/20 ,  Y02T10/645 ,  Y02T10/7275

Abstract: An apparatus for an electric drive vehicle which provides linear deceleration via electrical braking. The apparatus monitors vehicle speed and adjusts the duty cycle of a chopper circuit according to look-up tables. These table correlate vehicle speed and desired deceleration rate to braking torque, thereby enabling the apparatus to maintain a preselected deceleration through the entire stopping distance and to precisely position the vehicle.

Abstract translation: 一种电动车辆的装置，其通过电制动提供线性减速。 该装置根据查找表监视车辆速度并调整斩波电路的占空比。 这些表将车速和期望的减速度与制动转矩相关联，从而使得装置能够通过整个停止距离保持预选的减速度并且精确地定位车辆。

公开(公告)号：US4742282A

公开(公告)日：1988-05-03

申请号：US58229

申请日：1987-05-20

Applicant: Ayumu Okutani ,  Yukinori Konushi

Inventor： Ayumu Okutani ,  Yukinori Konushi

IPC: G11B15/18 ,  G11B15/467 ,  G11B15/48 ,  H02P3/08 ,  H02P3/10

CPC classification number: H02P3/08 ,  G11B15/1875 ,  G11B15/467 ,  G11B15/4673 ,  G11B15/48

Abstract: A brake pulse forming circuit determines the rotational direction of a capstan motor in each edge of signals FG1 and FG2, utilizing D type flip-flops (21, 22, 23 and 24) and an NOR gate (25). A brake pulse f having a longer pulse width supplied from an intermittent driving circuit (10) to brake the capstan motor in a reverse direction is terminated by an AND gate (27), simultaneously with reverse detection of the capstan motor, and is applied to a capstan motor driving circuit as a corrected brake pulse j having a proper pulse width. In addition, a motor drive signal g supplied from the intermittent driving circuit (10) is terminated by an OR gate (26), simultaneously with reverse detection of the capstan motor. However, an EX-OR gate (28) prevents the motor driving signal g from being terminated by erroneous determination of the rotational direction at the time of starting the capstan motor.

公开(公告)号：US4528489A

公开(公告)日：1985-07-09

申请号：US479156

申请日：1983-03-28

Applicant: Joseph A. Volk, Jr.

Inventor： Joseph A. Volk, Jr.

IPC: A61G7/018 ,  H02P5/74 ,  H02P3/10

CPC classification number: H02P5/74 ,  A61G7/018

Abstract: A remote control circuit for a hard wired remote control controlling multiple functions in a multiple motor device has a reduced number of wires extending between the hand held control and the motor control circuit. The circuit includes a rectifier for generating a positive control voltage and a negative control voltage which are separately supplied along individual wires to the hand held control, and a single wire extending between the hand held control and the control circuit for each function, the voltage appearing along the wire designating the direction of movement of the function. A pair of parallel connected LEDs sense the polarity of the voltage and energize a triac corresponding to the polarity of the voltage appearing along the control wire to energize the proper winding of a reversible motor.

Abstract translation: 用于在多电机装置中控制多个功能的硬连线遥控器的遥控电路具有在手持控制和电动机控制电路之间延伸的电线数目的减少。 该电路包括一个整流器，用于产生一个正的控制电压和一个负的控制电压，这些控制电压分别沿着单独的电线提供给手持控制，而单根电线在每个功能的手持式控制和控制电路之间延伸，出现电压 沿线指定功能的运动方向。 一对并联的LED感测电压的极性，并且激励对应于沿着控制线出现的电压的极性的三端双向可控硅开关，以激励可逆电动机的正确绕组。

公开(公告)号：US4499409A

公开(公告)日：1985-02-12

申请号：US575529

申请日：1984-01-31

Applicant: James J. Bauer

Inventor： James J. Bauer

IPC: H01H3/56 ,  H02K11/00 ,  H01H35/06 ,  H02P3/10

CPC classification number: H01H3/56 ,  H02K11/24

Abstract: A plugging defeat system for use with a reversible electric motor having a motor shaft. A slipping clutch-type mechanism is used to sense the speed and direction of the motor and to selectively open forward or reverse enabling switches when the motor reaches a predetermined speed. If operating in the forward direction, the clutch mechanism will open the reverse enabling switch, once the predetermined speed is reached, preventing motor reversal until the speed has fallen to a safe level, and vice versa.

Abstract translation: 一种与具有电动机轴的可逆电动机一起使用的堵塞失败系统。 使用滑动离合器型机构来感测电动机的速度和方向，并且当电动机达到预定速度时选择性地打开正向或反向使能开关。 如果在向前方向上操作，一旦达到预定速度，离合器机构将打开反向启用开关，防止马达反转，直到速度下降到安全水平，反之亦然。

公开(公告)号：US4482850A

公开(公告)日：1984-11-13

申请号：US422566

申请日：1982-09-24

Applicant: Masakazu Sonoda ,  Takashi Terajima ,  Minoru Ozawa

Inventor： Masakazu Sonoda ,  Takashi Terajima ,  Minoru Ozawa

IPC: G11B15/18 ,  G11B15/20 ,  G11B15/467 ,  G11B15/48 ,  G11B15/54 ,  H02P3/08 ,  H02P7/06 ,  H02P23/00 ,  H02P3/10

CPC classification number: G11B15/1808 ,  G11B15/1875 ,  G11B15/20 ,  H02P23/16 ,  H02P23/186 ,  H02P3/08 ,  H02P7/06 ,  G11B15/4673 ,  G11B15/48 ,  G11B15/54

Abstract: A control circuit is used during slow or stop-motion playback operation of a video tape device to drive video tape intermittently. In order to avoid errors in the stopping position of the tape, a pulse width modulated (PWM) signal is provided to a motor controller circuit associated with the capstan motor of the video tape device. A frequency signal generator coupled to this motor generates a frequency signal that varies with the capstan motor speed, and this frequency signal is provided to a retrigger monostable multivibrator which generates a PWM signal whose duty ratio changes in proportion to the capstan motor speed. A drive pulse generator and a brake pulse generator provide drive start and brake start signals, respectively, when it is desired to commence and stop movement of the tape. A drive circuit, including the retrigger monostable multivibrator, receives the drive start signal, the brake start signal, and the frequency signal to generate the PWM signal which is supplied to the motor controller circuit. The frequency signal is selected to have a pulse rate several tens of times the ripple frequency of the motor's torque ripple characteristic so that inaccuracies in stopping position of the motor are eliminated.

Abstract translation: 在录像带设备的慢速或停止运动播放操作期间使用控制电路来间歇地驱动视频磁带。 为了避免磁带停止位置的错误，将脉冲宽度调制（PWM）信号提供给与录像带装置的主导轴电机相关联的电机控制器电路。 耦合到该电动机的频率信号发生器产生随主导轴电动机速度而变化的频率信号，并且该频率信号被提供给再触发单稳态多谐振荡器，其产生占空比与主导轴电动机速度成比例地变化的PWM信号。 当需要开始和停止磁带的移动时，驱动脉冲发生器和制动脉冲发生器分别提供驱动启动和制动启动信号。 包括再触发单稳态多谐振荡器的驱动电路接收驱动开始信号，制动开始信号和频率信号，以产生提供给马达控制器电路的PWM信号。 选择频率信号具有电机转矩脉动特性的脉动频率几十倍的脉冲频率，从而消除电机停止位置的不准确。

公开(公告)号：US4422024A

公开(公告)日：1983-12-20

申请号：US337715

申请日：1982-01-07

Applicant: Hajime Itoh ,  Yoshiyuki Igarashi

Inventor： Hajime Itoh ,  Yoshiyuki Igarashi

IPC: B60S1/08 ,  H02P3/08 ,  H02P3/10

CPC classification number: B60S1/08 ,  Y10S318/02

Abstract: A wiper control device for a vehicle capable of accurately stopping wiper blades always at the lowermost position of a wiping range regardless of the rotating speed of a wiper motor. The wiper control device automatically stops the wiper motor at the lowermost position of the wiper blades with a control circuit which obtains a sliding angle corresponding to the rotating speed of the wiper motor from the rotating speed of the motor and controls to flow an electric current continuously in the motor during the time while the motor reaches a rotating position even after the motor is interrupted by selecting the cam contact position with respect to the annular electrode. Thus, this wiper control device can eliminate to disturb the visual field of a driver with the wiper blades.

Abstract translation: 一种用于车辆的刮水器控制装置，其能够在无论刮水器马达的转速如何的情况下始终在擦拭范围的最低位置处正确地阻止刮片。 刮水器控制装置利用控制电路自动停止刮水器电动机的最下位置，该控制电路从电动机的转速获得与刮水器电动机的转速对应的滑动角度，并且控制电流连续流动 在电动机通过选择相对于环形电极的凸轮接触位置而在电动机中断之后马达达到旋转位置的时间内。 因此，该刮水器控制装置可以消除用刮水片干扰驱动器的视野。

公开(公告)号：US4158797A

公开(公告)日：1979-06-19

申请号：US770986

申请日：1977-02-22

Applicant: David K. Alcott

Inventor： David K. Alcott

IPC: H02P3/16 ,  H02P3/10 ,  H02P3/14

CPC classification number: H02P3/16 ,  Y10T477/363 ,  Y10T477/84

Abstract: A power hoist is disclosed wherein a single operating lever is moved between haul, hold and lock positions. A load may be suspended when the hoist is in hold position by means of braking action which is primarily provided by closing a shunting switch across the leads of a DC motor whereby the motor functions as a brake, which holding action, when necessary, is supplemented by a positive mechanical locking device engageable with the gear train. The combination of electrical shunt holding means with mechanical locking means, both operated by the same lever member enables convenient and improved hoist action in which the load may be securely held in a suspended position without any creepage taking place, and without danger of damage to the mechanical locking system.

Abstract translation: 公开了一种电动葫芦，其中单个操作杆在牵引，保持和锁定位置之间移动。 当起重机处于保持位置时，通过制动动作可以暂停负载，该制动作用主要通过在直流电动机的引线上闭合分流开关来提供，由此马达用作制动器，当必要时，该保持动作被补充 通过与齿轮系可接合的正机械锁定装置。 电气分流保持装置与机械锁定装置的组合都由相同的杠杆构件操作，能够实现方便和改进的起重作用，其中负载可以牢固地保持在悬挂位置，而没有发生任何爬电，并且不会损坏 机械锁定系统。

公开(公告)号：US3958163A

公开(公告)日：1976-05-18

申请号：US525296

申请日：1974-11-20

Applicant: Robert C. Clark

Inventor： Robert C. Clark

IPC: H02P3/08 ,  B60L7/00 ,  B60L7/12 ,  B60L15/28 ,  H02P3/10 ,  H02P3/14 ,  H02P7/29

CPC classification number: B60L7/006 ,  B60L3/0084 ,  B60L7/12 ,  H02P3/14 ,  B60L2240/36 ,  B60L2240/429 ,  Y02T10/648 ,  Y02T10/7258

Abstract: A method and apparatus for sensing plugging of a DC electric motor comprising logic circuitry responsive to a direction change command for initiating a plugging signal and additional logic circuitry for maintaining said plugging signal as a function of the percentage on time of a variable time ratio switch supplying power to the motor. Inhibit circuitry is provided to override the plugging signal under operator selected conditions.

公开(公告)号：US3952330A

公开(公告)日：1976-04-20

申请号：US529715

申请日：1974-12-05

Applicant: Hans-Georg Rimkus ,  Ludwig Hess

Inventor： Hans-Georg Rimkus ,  Ludwig Hess

IPC: H02P3/10 ,  G11B15/12 ,  G11B15/48

CPC classification number: H02P3/10

Abstract: An electronic control circuit is provided for a magnetic sound device of the type having a sound recording medium transport, a direct current drive motor for the transport, a main control switch, andd a circuit interconnecting the motor to a direct current power supply through the main control switch in accordance with a first polarity and an audio circuit. The present circuit comprises an auxiliary control switch interposed between the motor and main switch and a switch circuit including first and second transistor switches connected between the main control switch and motor for reversing the polarity of the interconnection between the power supply and motor. A capacitor is interconnected between the motor and the transistor switches for activating the transistor switches during the charge-up time of the capacitor when the auxiliary switch is open. The present circuit further shorts out the audio circuit for a brief time period after the auxiliary switch is opened or closed.

Abstract translation: 提供一种用于具有声音记录介质传输类型的磁性装置的电子控制电路，用于传送的直流驱动电动机，主控制开关以及通过主体将电动机与直流电源相互连接的电路 控制开关根据第一极性和音频电路。 本电路包括插入在电动机和主开关之间的辅助控制开关和包括连接在主控制开关和电动机之间的第一和第二晶体管开关的开关电路，用于反转电源和电动机之间的互连的极性。 电容器在电动机和晶体管开关之间互连，用于在辅助开关打开时在电容器的充电时间期间激活晶体管开关。 在辅助开关打开或关闭后，本电路进一步短路音频电路短暂的时间段。