Method of controlling a physical variable in an electronically commutated motor, and motor for carrying out said method
    1.
    发明授权
    Method of controlling a physical variable in an electronically commutated motor, and motor for carrying out said method 失效
    电子换向马达中的物理变量的控制方法以及执行所述方法的马达

    公开(公告)号:US06956343B2

    公开(公告)日:2005-10-18

    申请号:US10433193

    申请日:2001-12-21

    CPC classification number: H02P6/15 H02P6/28 H02P2209/07

    Abstract: In a method for controlling a physical variable in an electronically commutated motor, current is supplied to the stator winding arrangement (102) of the motor in the form of current blocks. The interval (BW) between the switch-on command and switch-off command for controlling those current blocks, i.e. the length (BW) of the control signals, is influenced by a control apparatus, and the effective current value of those current blocks is influenced by setting a pulse duty factor (pwm). The length of the control signals is limited in both directions. If a control signal becomes shorter than a specified lower limit, the pulse duty factor (pwm) is decreased, so that the effective value of the current falls and the length (BW) of the current blocks is increased by the control system. If a control signal becomes longer than a specified upper limit, the pulse duty factor is increased, so that the effective value of the current rises and the length of the current blocks decreases in compensatory fashion.

    Abstract translation: 在用于控制电子换向马达的物理变量的方法中,以电流块的形式将电流提供给马达的定子绕组装置(102)。 用于控制这些当前块的接通命令和关断命令之间的间隔(BW),即控制信号的长度(BW)受到控制装置的影响,并且这些当前块的有效电流值是 受脉冲占空系数(pwm)的影响。 控制信号的长度在两个方向都受到限制。 如果控制信号变得短于指定的下限,则脉冲占空比(pwm)减小,使得当前块的有效值下降,并且通过控制系统增加当前块的长度(BW)。 如果控制信号变得长于指定的上限,则脉冲占空因数增加,使得电流的有效值上升,并且当前块的长度以补偿的方式减小。

    Method for nonvolatile storage of at least one operating data value of an electrical motor, and electrical motor for said method
    2.
    发明授权
    Method for nonvolatile storage of at least one operating data value of an electrical motor, and electrical motor for said method 有权
    用于非易失性地存储电动机的至少一个操作数据值的方法,以及用于所述方法的电动机

    公开(公告)号:US06810292B1

    公开(公告)日:2004-10-26

    申请号:US10031638

    申请日:2001-10-27

    Abstract: The invention concerns a method for nonvolatile storage of at least one operating data value of an electric motor (32). The latter comprises a microprocessor or microcontroller (23) that controls its commutation, and it comprises a nonvolatile memory (74). In this method, when the motor (32) is switched on, an old operating data value is transferred from the nonvolatile memory (74) into a volatile memory (97) associated with the microprocessor (23) and saved there as a variable. The variable is updated by the microprocessor in the time intervals between the commutation operations (FIG. 13). At intervals of time, the operating data value saved in the nonvolatile memory (74) is replaced by the updated operating data value corresponding to the present value of the variable. A motor for carrying out this method is described.

    Abstract translation: 本发明涉及用于非易失存储电动机(32)的至少一个操作数据值的方法。 后者包括控制其换向的微处理器或微控制器(23),并且其包括非易失性存储器(74)。 在该方法中,当电动机(32)接通时,旧的操作数据值从非易失性存储器(74)传送到与微处理器(23)相关联的易失性存储器(97)中并作为变量保存在该易失性存储器(97)中。 微处理器在换向操作之间的时间间隔中更新变量(图13)。 在时间间隔,保存在非易失性存储器(74)中的操作数据值被对应于变量的当前值的更新的操作数据值替换。 描述用于执行该方法的电动机。

    Electronically commutated motor
    3.
    发明授权
    Electronically commutated motor 有权
    电子换向电机

    公开(公告)号:US06307338B1

    公开(公告)日:2001-10-23

    申请号:US09673040

    申请日:2000-12-12

    CPC classification number: H02P6/14

    Abstract: An electronically commutated motor has at least two winding phases (112, 114) which are wound together or otherwise inductively coupled. Current in each phase is controlled by a respective power transistor (124, 128). An integrated circuit controller (146) receives signals from a Hall sensor (118) and generates rotor position output signals (OUT1, OUT2) which are oppositely phased and are applied to the bases of the respective power transistors (124, 128) so that the power transistors never both conduct at the same time. Further, a pair of latching transistors (162, 172) and a pair of base drain resistors (164, 174), connected to respective bases of the power transistors (124, 128) are provided, in order to assure “soft” switching of the power transistors at low RPM, yet prompter switching and higher efficiency at high RPM. These additional components also ensure a sufficiently long current gap between switch-off of one power transistor and switch-on of the other power transistor.

    Abstract translation: 电子换向电动机具有至少两个卷绕在一起或以其他方式感应耦合的绕组相(112,114)。 每相中的电流由相应的功率晶体管(124,128)控制。 集成电路控制器(146)接收来自霍尔传感器(118)的信号,产生相位相位的转子位置输出信号(OUT1,OUT2),并被施加到各个功率晶体管(124,128)的基极, 功率晶体管不会同时进行。 此外,提供了连接到功率晶体管(124,128)的各个基极的一对闩锁晶体管(162,172)和一对基极漏极电阻器(164,174),以便确保“软”切换 功率晶体管处于低RPM,而且在高RPM下提供更高的转换效率。 这些额外的部件还确保了一个功率晶体管的断开和另一个功率晶体管的接通之间足够长的电流间隙。

    Claw pole motor
    4.
    发明授权
    Claw pole motor 有权
    爪极马达

    公开(公告)号:US06281616B1

    公开(公告)日:2001-08-28

    申请号:US09381666

    申请日:2000-02-16

    CPC classification number: H02K1/145 H02K21/22 H02K2213/03

    Abstract: An electronically commutated claw pole motor has an external rotor (42) with a shaft (40) and a rotor magnet (62). The claw pole motor contains a stator (64) which has a first soft ferromagnetic stator pole piece (74) located on its side facing away from the external rotor (42). The stator pole piece is provided with first claw poles (82, 84) projecting toward the external rotor (42). The stator has a second soft ferromagnetic stator pole piece (76) located on its side facing the external rotor (42). The second soft ferromagnetic pole piece is provided with second claw poles (88, 90) extending from the external rotor (42) and having a larger axial extension (h2) than the first claw poles (82, 84) and projecting into gaps (92) between the first claw poles (82, 84). An axial bearing (44, 46) supports the end (44) of the shaft (40) which faces away from the external rotor (42). In order to generate a magnetic force (F) acting on this bearing, the rotor magnet is displaced, relative to the stator (64), in a direction away from the axial bearing (40, 44).

    Abstract translation: 电子换向爪极马达具有带轴(40)和转子磁体(62)的外转子(42)。 爪极马达包括定子(64),其具有位于其远离外转子(42)的一侧的第一软铁磁定子极片(74)。 定子极片设置有向外转子(42)突出的第一爪极(82,84)。 定子具有位于其面向外转子(42)的一侧的第二软铁磁定子极片(76)。 第二软铁磁极片设置有从外转子(42)延伸并具有比第一爪极(82,84)更大的轴向延伸(h2)并且突出到间隙(92)中的第二爪极(88,90) )在第一爪极(82,84)之间。 轴承(44,46)支撑轴(40)的远离外转子(42)的端部(44)。 为了产生作用在该轴承上的磁力(F),转子磁体相对于定子(64)沿远离轴向轴承(40,44)的方向移位。

    Electronically commutated motor with external rotor
    5.
    发明授权
    Electronically commutated motor with external rotor 失效
    带外转子的电子换向电机

    公开(公告)号:US5831359A

    公开(公告)日:1998-11-03

    申请号:US717713

    申请日:1996-09-23

    Applicant: Frank Jeske

    Inventor: Frank Jeske

    CPC classification number: H02K29/08

    Abstract: An electronically commutated motor (10) has a permanent-magnet external rotor (58) and an inner stator (20) with claw-poles (30,32; 44,46). Preferably, the claw-poles extend axially from opposite directions along the outside of the stator (20) and are interdigited. A galvanomagnetic sensor (14) generates a rotor position signal, based upon measurement of a stray or cross-flux field (.phi..sub.1) of the rotating permanent-magnet external rotor (58,66). Between the claw-poles of the stator (20) are a plurality of neutral field zones (52). The motor turns in a predetermined direction (72) and the galvanomagnetic sensor (14) is positioned adjacent the stator (20) at a location which is circumferentially displaced with respect to a neutral field zone (52), in order to trigger early commutation of current to windings (22,24) of the motor (10). The stator structure includes a soft ferromagnetic element (28) which is formed with a cutout (76,76') adjacent the sensor (14) in order to increase the effective flux exerted on the sensor by the field of the rotor, and to thereby improve the precision of the rotor position signal generated by the sensor (14) during operation of the motor (10). The motor includes a control circuit actuated by the sensor output signal (86) which commutates current through the motor windings (22, 24).

    Abstract translation: 电子换向马达(10)具有永磁体外转子(58)和具有爪极(30,32; 44,46)的内定子(20)。 优选地,爪极沿着定子(20)的外侧的相反方向轴向延伸并被交叉。 电流磁传感器(14)基于旋转永磁体外转子(58,66)的杂散或交叉磁场(phi 1)的测量产生转子位置信号。 在定子(20)的爪极之间是多个中性场区(52)。 电动机以预定方向(72)转动,并且电流磁传感器(14)在相对于中性场区域(52)周向移位的位置处定位成邻近定子(20),以便触发早期换向 电流到电动机(10)的绕组(22,24)。 定子结构包括软铁磁元件(28),其形成有与传感器(14)相邻的切口(76,76'),以便通过转子的场增加施加在传感器上的有效通量,从而 在电动机(10)的操作期间提高由传感器(14)产生的转子位置信号的精度。 电动机包括由传感器输出信号(86)致动的控制电路,其将电流换向电动机绕组(22,24)。

    Motor with variable edge steepness
    6.
    发明授权
    Motor with variable edge steepness 失效
    电机具有可变边缘陡度

    公开(公告)号:US5731674A

    公开(公告)日:1998-03-24

    申请号:US578732

    申请日:1995-12-26

    Applicant: Frank Jeske

    Inventor: Frank Jeske

    CPC classification number: H02P6/12 H02P6/00 H02P6/14 H03K17/14 Y10S388/934

    Abstract: An improved motor for driving a variable-speed fan used, for example, to prevent overheating of electronic equipment, features an electronic controller which sends current pulses through the stator winding(s) of the motor, and varies the slope of trailing edges of these pulses in accordance with at least one sensed operating parameter of the motor, such as temperature of the power semiconductors which control the motor current. The slopes are steepened at high motor speeds to reduce electrical losses, and flattened at low motor speeds to minimize noise. Another feature of the improved motor provides for fail-safe, high-speed operation of the fan when the sensed value of the operating parameter is implausible, for example when a lead from a temperature-dependent sensing resistor breaks. In a preferred embodiment, a bridge circuit is used, which includes a transistor in one diagonal of the bridge circuit. Currently marketed personal computers use central processor chips containing several million transistors, which generate heat, and adequate, reliable cooling is absolutely essential to their proper operation. The present invention improves reliability.

    Abstract translation: 用于驱动例如用于防止电子设备过热的变速风扇的改进的电动机具有电子控制器,该电子控制器通过电动机的定子绕组发送电流脉冲,并且改变这些的后缘的斜率 脉冲根据电动机的至少一个感测的操作参数,例如控制电动机电流的功率半导体的温度。 斜坡以高电机速度陡峭,以减少电气损耗,并在低电机速度下平坦化以最小化噪音。 当感测到的运行参数的值不可信时,例如当来自温度敏感的电阻器的引线断开时,改进的马达的另一特征提供了风扇的故障安全的高速运行。 在优选实施例中,使用桥接电路,其包括在桥接电路的一个对角线中的晶体管。 目前市面上销售的个人电脑使用包含数百万个晶体管的中央处理器芯片,这些晶体管产生热量,而且充分可靠的冷却对于其正常运行绝对至关重 本发明提高了可靠性。

    METHOD FOR OPERATION OF A TWO-PHASE ELECTRONICALLY COMMUTATED MOTOR AND MOTOR FOR CARRYING OUT SAID METHOD
    7.
    发明申请
    METHOD FOR OPERATION OF A TWO-PHASE ELECTRONICALLY COMMUTATED MOTOR AND MOTOR FOR CARRYING OUT SAID METHOD 有权
    两相电子电动机和电动机的运行方法

    公开(公告)号:US20100283419A1

    公开(公告)日:2010-11-11

    申请号:US11816828

    申请日:2006-01-20

    CPC classification number: H02P6/24 H02P6/22

    Abstract: A two-stranded electronically commutated DC motor has a permanent-magnet rotor (36), power supply terminals (28, 30) for connecting the motor to a current source (22) and a stator (102) having a winding arrangement which includes first and second winding strands (52, 54). The latter are controlled by respective first and second semiconductor switches (70, 80). The motor also has a third controllable semiconductor switch (50), arranged in a supply lead from one of the terminals (28, 30) to the winding strands (52, 54), which third switch is alternately switched on and off by applying to it a PWM (Pulse Width Modulated) signal 24. During switch-off intervals, magnetic flux energy stored in the motor causes a decaying loop current (i2) to run through the windings, continuing to drive the rotor. This facilitates conformal mapping of temperature information in the PWM signal onto a target motor rotation speed.

    Abstract translation: 双绞电子换向直流电动机具有永磁转子(36),用于将电动机连接到电流源(22)的电源端子(28,30)和具有卷绕装置的定子(102),该绕组装置包括第一 和第二绕组线(52,54)。 后者由相应的第一和第二半导体开关(70,80)控制。 电动机还具有第三可控半导体开关(50),其布置在从一个端子(28,30)到绕组线(52,54)的供电引线中,该第三开关通过施加到 它是PWM(脉宽调制)信号24.在断电间隔期间,存储在电动机中的磁通能量使得衰减回路电流(i2)穿过绕组,继续驱动转子。 这有助于PWM信号中的温度信息与目标电动机转速的适形映射。

    Control Circuit for an Electronically Commutated Motor
    8.
    发明申请
    Control Circuit for an Electronically Commutated Motor 有权
    电子换向电机控制电路

    公开(公告)号:US20080297084A1

    公开(公告)日:2008-12-04

    申请号:US11814172

    申请日:2006-01-17

    CPC classification number: H02P6/15 H02P6/28

    Abstract: A control circuit for an electronically commutated motor (120), having a power stage (122) that comprises at least two semiconductor switches (216, 218) to influence the motor current. The semiconductor switches are controllable by way of commutation signals. The control circuit comprises a current measuring element (170) to make available a motor current control variable (I) dependent on the motor current, a base diode (240) that is arranged in series with the current measuring element and between the current measuring element and the at least two semiconductor switches, and a motor current setting element (180) with which the commutation signals can be influenced as a function of the motor current control variable.

    Abstract translation: 一种用于电子换向电动机(120)的控制电路,具有包括至少两个半导体开关(216,218)的功率级(122)以影响电动机电流。 半导体开关可通过换向信号控制。 控制电路包括电流测量元件(170),以根据电机电流提供电动机电流控制变量(I);基极二极管(240),其与电流测量元件串联布置,并且在电流测量元件 和所述至少两个半导体开关以及电动机电流设定元件(180),所述换向信号可以作为所述电动机电流控制变量的函数而被影响。

    Electric Motor And Method Of Controllling Said Motor
    9.
    发明申请
    Electric Motor And Method Of Controllling Said Motor 审中-公开
    电动机及其控制方法

    公开(公告)号:US20080157707A1

    公开(公告)日:2008-07-03

    申请号:US11817406

    申请日:2006-02-28

    CPC classification number: H02P6/182 H02P6/15 H02P2209/07

    Abstract: The invention relates to a sensorless electric motor and a method of controlling such an electric motor, which motor comprises a permanently magnetic rotor, a stator having at least one winding, and a power stage for influencing the current flowing through the winding. As a function of a predetermined commutation duration (T_K), a commutation period is defined, during which period the direction of the magnetic field generated by current flow through the winding is not modified, during which period a commutation completion operation (107) and a commutation initiation operation (109) take place, and which period starts at a first commutation instant (t_KN) and ends at a second commutation instant (t_KN+1); preferably, commutation timing is adjusted, based upon a value of induced voltage picked up at a currently non-energized one of the winding strands, during a plateau portion (108) of a winding voltage trace, located temporally between commutation instants.

    Abstract translation: 本发明涉及无传感器电动机和控制这种电动机的方法,该电动机包括永磁转子,具有至少一个绕组的定子和用于影响流过绕组的电流的功率级。 作为预定换向持续时间(T_K)的函数,定义了换向周期,在此期间,通过绕组的电流产生的磁场的方向不被修改,在此期间,换向完成操作(107)和 进行换向启动操作(109),并且哪个时段在第一换向时刻(t_K N N N)开始,并在第二换向时刻(t_K N + 1)结束。 优选地,在时间上位于换相时刻之间的绕组电压迹线的高原部分(108)期间,基于在当前未通电的绕组线圈拾取的感应电压的值来调整换向定时。

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