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1. 发明授权

US5495372A Motor drive circuit with emergency auxiliary power supply energized by motor 失效
标题翻译：电机驱动电路，紧急辅助电源由电机通电
公开(公告)号：US5495372A
公开(公告)日：1996-02-27
申请号：US148111
申请日：1993-11-04
申请人： Johannes P. M. Bahlmann , Henricus M. van Hout
发明人： Johannes P. M. Bahlmann , Henricus M. van Hout
IPC分类号： G11B19/28 , G11B5/54 , H02P3/22 , H02P6/12 , H02P6/34 , G11B21/02
CPC分类号： G11B5/54 , H02P6/34
摘要： A motor drive circuit for driving an electromotor having a permanent magnet rotor and a stator comprising one or more stator windings. When the supply voltage of the motor drive circuit fails, an emergency signal is generated by a signal generator. This emergency control signal activates an auxiliary power supply circuit for extracting electric energy from the motor and supplying the extracted energy to an auxiliary circuit. The auxiliary power supply circuit comprises a rectifier circuit formed by the fly back diodes bridging the switches of an electronic commutation circuit. The drive circuit comprises short-circuit switches bridging the stator windings. In response to the emergency control signal a short-circuit apparatus causes the stator windings to be temporarily intermittently short-circuited. As a result, a capacitor is charged. The energy stored in the capacitor is used for temporarily energizing the auxiliary circuit once the power supply to the drive circuit has failed. If the drive circuit is used with a hard disc drive, the energy supplied by the auxiliary power supply circuit can be used for moving the magnetic head to an idle position.
摘要翻译：一种用于驱动具有永磁转子和包括一个或多个定子绕组的定子的电动机的电动机驱动电路。当电机驱动电路的电源电压发生故障时，由信号发生器产生紧急信号。该应急控制信号激活用于从电动机提取电能并将提取的能量提供给辅助电路的辅助电源电路。辅助电源电路包括由桥接电子换向电路的开关的反向二极管形成的整流电路。驱动电路包括桥接定子绕组的短路开关。响应于紧急控制信号，短路装置使定子绕组暂时间歇地短路。结果，电容器被充电。一旦驱动电路的电源发生故障，存储在电容器中的能量用于临时给辅助电路供电。如果驱动电路与硬盘驱动器一起使用，则由辅助电源电路提供的能量可用于将磁头移动到空闲位置。

2. 发明授权

US4748385A Brushless d.c. motor and switching device for use in such a d.c. motor 失效
标题翻译：无刷直流电动机和开关装置，用于这种直流。发动机
公开(公告)号：US4748385A
公开(公告)日：1988-05-31
申请号：US33713
申请日：1987-04-03
申请人： Henricus M. Van Hout
发明人： Henricus M. Van Hout
IPC分类号： H02P6/10 , H02P6/14 , H02K29/08
CPC分类号： H02P6/14
摘要： A multi-phase brushless d.c. motor comprises a permanent-magnet rotor (1) and a stator (2) with stator coils (16, . . . , 21) arranged between three power lines (A, B, C). For the purpose of commutation the motor is provided with switching devices (22A, 22B, 22C) for the cyclic disconnection and connection of the power-supply lines (A, B, C) of the motor to a d.c. power source (25). Each switching device (22) comprises a section (42) which is controlled by the rotor-magnet field for deriving the disconnection instants and a section (43) for deriving the connection instants from a voltage change which is produced on the power-supply line connected to the switching device as a result of another power-supply line being disconnected.

3. 发明授权

US5030864A Three-phase electrical machine with reduced cogging torque 失效
标题翻译：三相电机减少齿槽转矩
公开(公告)号：US5030864A
公开(公告)日：1991-07-09
申请号：US403555
申请日：1989-09-06
申请人： Henricus M. Van Hout , Jan Janson , Johannes H. H. Janssen , Robertus I. Van Steen
发明人： Henricus M. Van Hout , Jan Janson , Johannes H. H. Janssen , Robertus I. Van Steen
IPC分类号： H02K21/22 , H02K21/24 , H02K29/00
CPC分类号： H02K21/22 , H02K21/24
摘要： An electrical multipole machine comprises a first machine section (1), a second machine section (3) and a machine shaft (5), about which one machine section is rotatable relative to the other machine section. The first machine section comprises an annular permanent-magnet body (11) having a plurality of adjacent pole pairs (N; S). The second machine section comprises a lamination assembly (25) having teeth (27-35) and coils (37-45). The teeth comprise tooth surfaces (47-55) which are geometrically spaced from one another by slots (57-65) and from the magnet body by an air gap (67). Near the air gap the slots extend in a tangential direction over at least 80 electrical degrees and at the most 90 electrical degrees, or over at least 130 electrical degrees and at the most 150 electrical degrees. The ratio between the number of poles and the number of teeth is either 4:3 or 2:3.
摘要翻译：电动多极机器包括第一机器部分（1），第二机器部分（3）和机器轴（5），一个机器部分相对于另一个机器部分可旋转。第一机器部分包括具有多个相邻极对（N; S）的环形永磁体（11）。第二机器部分包括具有齿（27-35）和线圈（37-45）的层压组件（25）。这些齿包括通过狭槽（57-65）几何地彼此间隔开的齿面（47-55），并且通过气隙（67）与磁体本体隔开。在气隙附近，槽沿着切线方向延伸至少80电度和最多90电度，或超过至少130电度和最多150电度。极数与齿数之比为4：3或2：3。

4. 发明授权

US06204617B1 Device for the detection of an angle of rotation of a brushless multi-phase d.c. motor 失效
标题翻译：用于检测无刷多相直流角的旋转装置。发动机
公开(公告)号：US06204617B1
公开(公告)日：2001-03-20
申请号：US09363351
申请日：1999-07-29
申请人： Henricus M. Van Hout , Catharinus T. Galema
发明人： Henricus M. Van Hout , Catharinus T. Galema
IPC分类号： H02K2300
CPC分类号： H02P6/185 , H02P6/22
摘要： A device which detects the angle of rotation of a rotor with respect to a stator of a brushless multi-phase d.c. motor. The rotor comprises a permanent magnet and the stator comprises a plurality of electrical windings. Electric drive signals are applied to the windings in order to drive the rotor. The device includes a drive circuit for applying pulse-shaped electric test signals to the windings while the rotor does not rotate. A measurement circuit detects flyback pulses generated by the motor in response to the test signals. A processing unit processes the durations of the detected flyback pulses in combination in order to determine the angle of rotation. On the basis of the angle of rotation thus determined, the motor can be started such that the rotor is set into rotation in a predetermined direction of rotation.
摘要翻译：检测转子相对于无刷多相直流的定子的旋转角度的装置。发动机。转子包括永磁体，并且定子包括多个电绕组。电驱动信号施加到绕组以驱动转子。该装置包括驱动电路，用于在转子不旋转的同时向绕组施加脉冲形电测试信号。测量电路响应于测试信号来检测电机产生的回扫脉冲。处理单元组合地处理检测到的回扫脉冲的持续时间，以便确定旋转角度。基于如此确定的旋转角度，可以启动电动机，使得转子以预定的旋转方向旋转。

5. 发明授权

US5397971A Bi-polar disk torquing system for a disk drive to free stuck transducers 失效
标题翻译：双磁盘扭力系统，用于磁盘驱动器自由卡住传感器
公开(公告)号：US5397971A
公开(公告)日：1995-03-14
申请号：US274570
申请日：1994-07-13
申请人： Jeffrey S. McAllister , Boyd N. Shelton , Henricus M. van Hout
发明人： Jeffrey S. McAllister , Boyd N. Shelton , Henricus M. van Hout
IPC分类号： G11B19/20 , G11B25/04 , H02P6/02 , G11B21/02
CPC分类号： G11B19/20
摘要： A multiple pole, multiple phase, sensorless DC disk spindle motor in a disk drive is powered by direct current which is commutated among the motor phases from a DC power supply to start the motor and to rotate the disks at constant speed in a predetermined direction whenever the disk drive is in use. When the motor is prevented from rotating by the stiction bond of one or more transducers which have adhered to the disks, the direct current is reversibly commutated among the motor phases near the resonant frequency, a predetermined number of times, to produce substantially sinusoidal, bi-polar motor torques to achieve torque amplification to break the stiction bonds. Following the last of the predetermined number of reversible commutations of direct current, direct current commutation is initiated among the motor phases to rotate the motor and the disks in the desired direction at constant speed.
摘要翻译：磁盘驱动器中的多极，多相，无传感器直流磁盘主轴电机由直流电源供电，直流电源从直流电源在电机相位之间转换，以启动电机，并以预定方向以恒定速度旋转磁盘磁盘驱动器正在使用中。当通过粘附在盘上的一个或多个换能器的静摩擦阻止电动机旋转时，直流电被可逆地换向在谐振频率附近的电动机相位之间，预定次数，以产生基本上正弦的极性电机转矩来实现扭矩放大，以破坏静电键。在预定数量的直流电可逆换向的最后一次之后，在电动机相之间开始直流换向，以恒定的速度将电动机和磁盘转动到期望的方向。

6. 发明授权

US4814676A Self-starting brushless D.C. motor 失效
标题翻译：自启动无刷直流电机
公开(公告)号：US4814676A
公开(公告)日：1989-03-21
申请号：US787004
申请日：1985-10-10
申请人： Henricus M. Van Hout
发明人： Henricus M. Van Hout
IPC分类号： H02K29/08 , H02P6/14 , H02P6/20 , H02K29/00
CPC分类号： H02P6/20 , H02K29/08
摘要： A brushless DC motor is self-starting using only one magneto-sensitive element because the motor is of a two-phase type and is provided with a detection device which detects towards which of the two phases the rotor is mainly directed. A presetting circuit compares the detected rotor position with the state of an energizing circuit in order to set this circuit so that the energizing circuit energizes the stator phases for said specific rotor position in such a way that starting of the motor is guaranteed, although initially with an undefined direction of rotation. By presetting the commutating direction of the energizing circuit the rotor subsequently locks onto the field and rotates in the correct direction if it has started in the incorrect direction.
摘要翻译：无刷直流电动机仅使用一个磁敏元件自启动，因为电动机是两相型的，并且设置有检测装置，该检测装置检测转子主要指向哪两个相。预置电路将检测到的转子位置与激励电路的状态进行比较，以便设置该电路，使得通电电路为所述特定转子位置的定子相通电，使得确保马达的启动，尽管最初与一个未定义的旋转方向。通过预置通电电路的整流方向，转子随后锁定在磁场上，并沿正确的方向旋转，如果它以不正确的方向开始。

7. 发明授权

US4731778A Electro-magnetic drive unit comprising a pivotable armature 失效
标题翻译：电磁驱动单元包括可枢转的电枢
公开(公告)号：US4731778A
公开(公告)日：1988-03-15
申请号：US822976
申请日：1986-01-27
申请人： Henricus M. van Hout , Johannes T. A. van de Veerdonk
发明人： Henricus M. van Hout , Johannes T. A. van de Veerdonk
IPC分类号： G11B21/02 , G11B7/085 , H01F7/14 , G11B3/10 , G11B7/00
CPC分类号： G11B7/08576 , H01F7/145
摘要： An electromagnetic drive unit comprises a stator (2) and an armature (4) which is pivotable about a pivotal axis (5) and which cooperates with the stator via an air gap. In order to minimize the volume and to obtain a maximum efficiency, the armature is arranged coaxially around the stator, the stator comprising at least two polepieces (6A) which are interconnected by a stator member (6B) carrying a coil (8). The armature comprises a plurality of radially magnetized poles (28A, 28B) which correspond in number to at least the number of polepieces, which poles are tangentially juxtaposed with alternately opposite polarities.
摘要翻译：电磁驱动单元包括定子（2）和电枢（4），所述电枢可围绕枢转轴线（5）枢转，并且经由气隙与定子协作。为了使体积最小化并获得最大效率，电枢同轴地布置在定子周围，定子包括至少两个通过承载线圈（8）的定子构件（6B）互连的极靴（6A）。电枢包括多个径向磁化的极（28A，28B），其数量至少与极数相对应，这些极与交替相反的极性切线并置。

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