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公开(公告)号：US09614466B2
公开(公告)日：2017-04-04
申请号：US14717010
申请日：2015-05-20
Applicant: Black & Decker Inc.
Inventor： Robert A. Usselman , Anatoliy Nosov
Abstract: A power system is provided comprising an electric universal motor including an armature rotatable coupled to an armature shaft and a commutator disposed on an armature shaft, a pair of brushes engaging the commutator, and a field having at least two field windings electrically coupled in series with the pair of brushes. The power system includes a power line having two terminals arranged to provide alternating-current (AC) power from a power supply, and a power switch provided in series with the field windings on a power line to provide AC power from the terminals to the motor when the power switch is closed. An electronic brake module is provided in the power system and configured to generate a braking force to stop the motor when the switch is opened, the electronic brake module comprising: a solid-state semiconductor switch arranged across the motor armature and the pair of brushes, a first diode arranged between a first node of the power line and the semiconductor switch, and a second diode arranged between a second node of the power line and the semiconductor switch, wherein the first node is arranged between one of the terminals and the power switch, and the second node is arranged between the power switch and the armature. A controller is provided in the power system and configured to initiate a braking mode of operation to close the semiconductor switch when the power switch is opened.
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公开(公告)号：US20080074812A1
公开(公告)日：2008-03-27
申请号：US11524818
申请日：2006-09-21
Applicant: Todd M. Oestreich , Timothy A. Davis
Inventor： Todd M. Oestreich , Timothy A. Davis
IPC: H02H7/09
Abstract: A system and method in accordance with the present technique for protecting motor drives from damage due to misconfiguration while coupled to a common DC bus, comprises sensing electrical operating parameters of the motor drives, automatically determining whether each of the drives is actually installed as a common bus leader or a common bus follower, and comparing the actual installation of the motor drives to a respective stored configuration of each of the motor drives as either a common bus leader or a common bus follower.
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公开(公告)号：US5192902A
公开(公告)日：1993-03-09
申请号：US607673
申请日：1990-11-01
Applicant: Masao Mizumoto , Kouichirou Ougino , Tsutomu Shimazaki , Tomohiro Inoue , Yasuhiro Okada
Inventor： Masao Mizumoto , Kouichirou Ougino , Tsutomu Shimazaki , Tomohiro Inoue , Yasuhiro Okada
CPC classification number: H02P7/293
Abstract: A controller for properly controlling a rotating speed and a rotational phase of a DC servo motor. A velocity correction signal is obtained by comparing a rotation signal detected from the motor rotating at a predetermined rotating speed, and a phase error signal is detected from the rotation detected signal as well. Both the rotating velocity and phase of the motor are corrected by the controller supplying a signal which is a mix of the velocity error signal and the phase error signal. The invention includes: a velocity control circuit including a trigger pulse generation circuit for producing a trigger pulse, in synchronization with a reference clock signal, from a rotation signal detected in response to the rotation of a motor, a counter for counting the reference clock signal and for outputting a count termination signal when a counted value reaches a preset value, and an output circuit for outputting, in response to the trigger pulse and the count termination signal, either a fast signal representing that the motor rotates faster than a predetermined rotating speed or a slow signal representing that the motor rotates slower than the predetermined speed; the invention further includes a phase control circuit for outputting in resones to a phase difference between the reference signal representing that the motor rotates at the predetermined speed and the rotation detection signal, either an advance signal representing that a phase-angle of the motor is advanced with respect to a predetermined value or a delay signal representing that a phase-angle of the motor is retarded with respect to the predetermined value; and a mixer for mixng an output from the velocity control signal circuit and an output from the phase control circuit, whereby the velocity control of the motor is executed prior to the phase control thereof.
Abstract translation: 用于正确控制直流伺服电动机的转速和转动相位的控制器。 通过比较从以预定旋转速度旋转的马达检测的旋转信号，并且从旋转检测信号检测相位误差信号，可以获得速度校正信号。 电机的旋转速度和相位均由控制器提供一个混合了速度误差信号和相位误差信号的信号来校正。 本发明包括：速度控制电路，包括触发脉冲发生电路，用于根据与电动机的旋转相关的旋转信号产生与基准时钟信号同步的触发脉冲，用于对参考时钟信号进行计数的计数器 并且当计数值达到预设值时用于输出计数终止信号;以及输出电路，用于响应于触发脉冲和计数终止信号，输出表示电动机比预定转速更快的转速的快速信号 或表示电动机转速比预定速度慢的慢信号; 本发明还包括相位控制电路，用于输出表示电机以预定速度旋转的参考信号与旋转检测信号之间的相位差，表示电动机的相位角的提前信号被提前 相对于预定值或延迟信号，其表示相对于所述预定值延迟所述电动机的相位角; 以及用于混合来自速度控制信号电路的输出和来自相位控制电路的输出的混频器，由此在其相位控制之前执行电动机的速度控制。
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4.发明授权
公开(公告)号：US4810955A
公开(公告)日：1989-03-07
申请号：US085431
申请日：1987-08-13
Applicant: Franz Hackl , Franz Wohrer
Inventor： Franz Hackl , Franz Wohrer
Abstract: For controlling d-c motors which are supplied with an armature current obtained by phase gating, the bucking voltage induced in the motor is particularly well suited. This voltage is calculated indirectly by a measuring unit which calculates the instantaneous bucking voltage of the d-c machine as a function of the phase gating angle calculated in the preceding computing cycle, the measured current conduction angle, the measured magnitude of the line voltage, the mean armature current value and the armature circuit resistance specific to the machine and the armature circuit inductance specific to the machine.
Abstract translation: 为了控制提供有通过相位门控获得的电枢电流的d-c电机，电机中引起的降压电压特别适合。 该电压通过测量单元间接计算，该测量单元计算作为在前一个计算周期中计算的相位门控角度的函数的直流电机的瞬时降压电压，测量的电流导通角，线电压的测量幅度，平均值 电枢电流值和专用于机器的电枢电路电阻和电机特定的电枢电感。
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公开(公告)号：US4524309A
公开(公告)日：1985-06-18
申请号：US332359
申请日：1981-12-18
Applicant: Michio Hisatake , Kazuji Yamamoto , Toru Hyodo , Yoshitaka Takahashi
Inventor： Michio Hisatake , Kazuji Yamamoto , Toru Hyodo , Yoshitaka Takahashi
CPC classification number: H02H7/0833 , H02P7/293
Abstract: A safety control device for a speed control circuit of a commutator motor having an ignition circuit includes a circuit for detecting an armature current and defining whether the commutator motor is energized with a supply current or with a free wheel current, a maintaining circuit for discriminating if the detected result is a continuously energized condition or an intermittent condition, and a bistable circuit. The maintaining circuit smoothes the detected voltage of the energized motor and maintains the voltage over at least one cycle of the power source and functions temporarily in an equivalent manner of continuous energization of the motor when power source is applied to the motor. The bistable circuit nullifies the ignition circuit of the motor control when the motor is in an intermittent energization and switches the ignition circuit into an effective condition as the maintaining circuit comes to accumulate the voltage above the predetermined level while no speed designation is made to the speed control circuit of the motor.
Abstract translation: 具有点火电路的换向器电动机的速度控制电路的安全控制装置包括用于检测电枢电流的电路，并且确定换向器电动机是用供电电流还是用自由电流电流通电;维持电路，用于鉴别是否 检测结果是连续通电状态或间歇状态，双稳态电路。 维持电路平滑了通电电动机的检测电压，并将电压保持在电源的至少一个周期上，并且当电源施加到电动机时，暂时以等效的方式连续通电电动机。 当电动机处于间歇通电状态时，双稳态电路使电动机控制器的点火电路无效，并且当维持电路达到高于预定电平的电压时将点火电路切换到有效状态，而不对速度进行速度指定 电机控制电路。
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Patent Agency Ranking
公开(公告)号：US4490657A
公开(公告)日：1984-12-25
申请号：US540529
申请日：1983-10-11
Applicant: Enoch P. Smith
Inventor： Enoch P. Smith
CPC classification number: H02P7/293 , Y10S388/903
Abstract: A dc motor drive includes a current limit circuit which produces a current limit signal that inhibits motor current to its commutation limit over a wide speed range. The current limit circuit includes an analog divider circuit which produces an output signal which decreases as an inversed function of motor speed.
Abstract translation: 直流电动机驱动器包括限流电路，该电流限制电路产生电流限制信号，其在较宽的速度范围内抑制电动机电流达到其换向极限。 电流限制电路包括模拟分频器电路，其产生作为电动机速度的反转功能而减小的输出信号。
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公开(公告)号：US4412160A
公开(公告)日：1983-10-25
申请号：US311401
申请日：1981-10-14
Applicant: Akira Kojima , Toshiyasu Sakai
Inventor： Akira Kojima , Toshiyasu Sakai
CPC classification number: H02P7/293 , Y10S388/903 , Y10S388/906 , Y10S388/917
Abstract: A dc motor driving apparatus comprising a full-wave rectifier bridge circuit for supplying dc power to a dc motor and a dc motor driving control circuit for controlling the turning on and off of thyristors forming the full-wave rectifier bridge circuit, further comprises a protecting control circuit operatively associated with the dc motor driving control circuit for preventing the occurrence of a short-circuit mode in the full-wave rectifier bridge circuit caused by a malfunction of the thyristors and ensuring highly efficient, quick responsive and stable control of the reversing, braking, stopping and other speed changing operations of the dc motor.
Abstract translation: 一种直流电动机驱动装置，包括用于向直流电动机提供直流电力的全波整流桥电路和用于控制形成全波整流桥电路的晶闸管的导通和截止的直流电动机驱动控制电路，还包括保护 控制电路与直流电动机驱动控制电路可操作地相关联，用于防止由晶闸管故障引起的全波整流桥电路中的短路模式的发生，并确保反向的高效，快速响应和稳定的控制， 直流电机的制动，停止和其他变速操作。
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8.发明授权Reversible electric drive with bidirectional back-current brake and fed by a rectifier supplied from alternating current mains, preferably for motor arc furnace regulators 失效具有双向回流制动器的可逆电驱动器，由交流电源供电的整流器供电，优选用于电动机电弧炉调节器
公开(公告)号：US4396877A
公开(公告)日：1983-08-02
申请号：US246477
申请日：1981-03-23
Applicant: Janos Egri , Gyoorgy Kucsera
Inventor： Janos Egri , Gyoorgy Kucsera
CPC classification number: H05B7/144 , H02P7/05 , H02P7/293 , Y02P10/256 , Y02P10/259
Abstract: A reversible electric drive with bidirectional back-current brakes fed by a rectifier supplied from a pair of A.C. power lines for a D.C. motor having two directions of rotation and two poles, comprises a control rectifier bridge for each direction of rotation, each bridge having two branches each containing a diode which is common to both bridges, a shunt resistor for each direction of rotation which is identical with a braking resistor for each other direction of rotation connected in series with the motor for each bridge, each bridge having two other branches each containing a rectifier thyristor with cathodes of each rectifier thyristor connected to a common point. The common point of each bridge is connected to one of the poles of the motor with a control thyristor connected to each common point in series with each respective shunt resistor of each bridge and connected to each other by a connecting point. The common diode is connected to the connecting point, and a braking thyristor is provided between a connecting point of each braking thyristor is provided between a connecting point of each shunt resistor and its respective control thyristor and the common points respectively.
Abstract translation: 具有由用于具有两个旋转方向和两极方向的直流电动机的一对AC电力线提供的整流器馈送的具有双向逆流制动器的可逆电驱动器包括用于每个旋转方向的控制整流桥，每个桥具有两个 每个桥具有两个桥两个共同的二极管，每个旋转方向的分流电阻器，与用于每个桥接器与电动机串联的每个其他旋转方向的制动电阻器相同，每个桥接器具有两个其他分支 包含整流晶闸管，其每个整流晶闸管的阴极连接到公共点。 每个桥的公共点连接到电动机的极之一，控制晶闸管连接到每个公共点，每个公共点与每个桥的每个相应的分流电阻串联，并通过连接点彼此连接。 公共二极管连接到连接点，并且在每个制动晶闸管的连接点分别设置在每个分流电阻器的连接点及其相应的控制晶闸管和公共点之间的制动晶闸管。
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公开(公告)号：US4161235A
公开(公告)日：1979-07-17
申请号：US907523
申请日：1978-05-19
Applicant: William R. Caputo , Alan L. Husson
Inventor： William R. Caputo , Alan L. Husson
Abstract: An elevator system in which the movement of the elevator car is responsive to a comparator which provides an error signal responsive to the difference between the magnitude of a speed pattern signal provided by a speed pattern generator, and a signal responsive to actual car speed. An adjustable impedance device controls the affect of the speed pattern signal on the comparator, with the impedance of the adjustable impedance device being responsive to at least one predetermined parameter of the speed pattern signal.
Abstract translation: 一种电梯系统，其中电梯轿厢的运动响应于比较器，该比较器响应于由速度模式发生器提供的速度模式信号的大小与响应于实际轿厢速度的信号之间的差异提供误差信号。 可调阻抗装置控制比较器上的速度模式信号的影响，可调阻抗装置的阻抗响应速度模式信号的至少一个预定参数。
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公开(公告)号：US4088933A
公开(公告)日：1978-05-09
申请号：US711156
申请日：1976-08-03
Applicant: Yoshihiro Hashimoto , Shigeki Kawada , Katsuo Kohari , Hiroshi Ishida
Inventor： Yoshihiro Hashimoto , Shigeki Kawada , Katsuo Kohari , Hiroshi Ishida
Abstract: A DC motor phase control system is provided in a system having a first controlled rectifier connected to an AC power supply and providing a positive rectified output and a second controlled rectifier providing a negative rectified output. A DC motor is controlled for forward and reverse rotation and is controlled in speed by the firing control of the rectifiers. The pulse indicating the zero point of the AC power supply voltage is delayed according to the actual speed of the motor and the delayed pulse is used as a reference pulse of the controlled firing pulses applied to the controlled rectifiers.
Abstract translation: 在具有连接到AC电源并提供正整流输出的第一受控整流器和提供负整流输出的第二可控整流器的系统中提供DC电动机相位控制系统。 控制直流电机正向和反向旋转，并通过整流器的点火控制控制速度。 指示交流电源电压的零点的脉冲根据电动机的实际速度而延迟，并且延迟的脉冲用作施加到受控整流器的受控点火脉冲的参考脉冲。
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