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83 条记录 (耗时 0.018 秒)

    Toy vehicle with an adjustable DC-DC switch
    1.
    发明公开
    Toy vehicle with an adjustable DC-DC switch 审中-公开
    Spielfahrzeug mit einstellbarem Gleichstrom-Gleichstromschalter

    公开(公告)号：EP2937121A1

    公开(公告)日：2015-10-28

    申请号：EP14183579.3

    申请日：2014-09-04

    申请人： Innovation First, Inc.

    发明人： Mimlitch III, Robert H. ,  Norman, David Anthony ,  Randall, Mitch

    IPC分类号： A63H17/26 ,  A63H33/30 ,  A63H30/04 ,  H02P7/285

    摘要： In one embodiment there is a toy vehicle having a low inductance motor powered by a high frequency switched voltage at a frequency high enough to create continuous conduction. The vehicle further includes an H-bridge circuit configured to control a direction of the motor and an adjustable high frequency DC-DC switch configured to convert a supply voltage to an output voltage, lower than the supply voltage, for use by the H-bridge circuit to power the low inductance motor in a forward or reverse direction. In addition, a processor is included and has instructions configured to change the output voltage from the DC-DC switch from a first voltage to a second voltage.

    摘要翻译： 在一个实施例中，存在具有低电感电动机的玩具车辆，其由高频开关电压供电，频率足够高以产生连续传导。 车辆还包括配置成控制电动机的方向的H桥电路和被配置为将电源电压转换成低于供电电压的输出电压的可调节高频DC-DC开关，供H桥使用 在正向或反向方向上为低电感电机供电。 此外，包括处理器并且具有被配置为将DC-DC开关的输出电压从第一电压改变到第二电压的指令。

    METHOD AND SYSTEM FOR CONTROLLING AN ELECTRICAL MOTOR WITH TEMPERATURE COMPENSATION
    2.
    发明公开
    METHOD AND SYSTEM FOR CONTROLLING AN ELECTRICAL MOTOR WITH TEMPERATURE COMPENSATION 审中-公开
    方法和系统控制电动机带温度补偿

    公开(公告)号：EP2678939A2

    公开(公告)日：2014-01-01

    申请号：EP12750058.5

    申请日：2012-02-20

    申请人： Deere & Company

    发明人： WU, Long ,  SHAW, Robert

    IPC分类号： H02P7/285

    摘要： A temperature estimation module estimates a change in temperature of the magnets associated with the rotor of the motor based on an operational magnetic flux strength that is compared to a reference magnetic flux strength determined at a known ambient temperature and for a predetermined operating range of the motor The temperature estimation module or the system establishes a relationship between the estimated change in the temperature and a magnetic torque component of a target output torque of the motor consistent with the predetermined operating range. The current adjustment module or the system adjusts a command (e.g., quadrature-axis current command) for the motor to compensate for shaft torque variation associated with the estimated change in the temperature in conformance with the established relationship.

    VERFAHREN ZUM BEREITSTELLEN EINES DIGITALEN STROMRIPPELSIGNALS
    4.
    发明授权
    VERFAHREN ZUM BEREITSTELLEN EINES DIGITALEN STROMRIPPELSIGNALS 有权
    一种用于提供数字信号功率RIPPEL

    公开(公告)号：EP1208639B1

    公开(公告)日：2009-09-02

    申请号：EP01960256.4

    申请日：2001-06-01

    申请人： Leopold Kostal GmbH & Co. KG

    发明人： OTTE, Stefan

    IPC分类号： H02P7/285 ,  G01P3/48

    CPC分类号： H02P7/0094 ,  G01P3/48 ,  H02P7/2913

    摘要： The invention relates to a method for providing a digital current fluctuation signal from the analogue armature current signal of a direct current motor that is supplied with current. The method is characterised in that, • the analogue armature current signal after being filtered is subjected to an analogue/digital conversion, based on a threshold value, • the analogue armature current signal is oversampled at a predetermined clock pulse rate during the start-up phase when the direct current motor is switched on and during the run-down phase when the motor is switched off, said oversampling being predominantly limited to these phases and • the current fluctuation(s) determined from the analogue/digital conversion based on a threshold value is/are compared with the current fluctuation(s) determined from the oversampling. If the respective current fluctuations that have been determined do not sufficiently correspond, the current fluctuations that have been determined from the oversampling are considered for further evaluation.

    VERFAHREN ZUM BESTIMMEN DER DREHSTELLUNG DER ANTRIEBSWELLE EINES GLEICHSTROMMOTORS
    5.
    发明授权
    VERFAHREN ZUM BESTIMMEN DER DREHSTELLUNG DER ANTRIEBSWELLE EINES GLEICHSTROMMOTORS 有权
    一种用于确定DC马达的轴的旋转位置

    公开(公告)号：EP1208638B1

    公开(公告)日：2009-07-29

    申请号：EP01945228.3

    申请日：2001-06-01

    申请人： Leopold Kostal GmbH & Co. KG

    发明人： LUTTER, Thomas ,  FRIEDRICH, Thomas

    IPC分类号： G01P3/48 ,  H02P7/285

    CPC分类号： H02P7/0094 ,  E05F15/695 ,  E05Y2400/342 ,  E05Y2400/514 ,  E05Y2800/40 ,  E05Y2900/55 ,  H02P7/2805

    摘要： The invention relates to a method for detecting the rotational position of the drive shaft of a DC motor and especially the position of an element driven by the drive shaft within a predetermined path of movement by evaluating the current ripples contained in the rotor current signal. The inventive method is characterized in that a period of a reference current ripple is provided during operation of the DC motor. The period of the reference current ripple is compared with the period of every current ripple detected during operation of the DC motor. If there is not sufficient agreement of the periods between the period of the reference current ripple and that of a detected current ripple, the periods of the current ripple signals that are not sufficiently in agreement are corrected with respect to the period of the reference current ripple.

    Verfahren zur Messung eines Laststromes
    7.
    发明公开
    Verfahren zur Messung eines Laststromes 有权

    公开(公告)号：EP1630947A1

    公开(公告)日：2006-03-01

    申请号：EP05105871.7

    申请日：2005-06-30

    申请人： ROBERT BOSCH GMBH

    发明人： Koch, Stefan ,  Lunghard, Karlheinz ,  Thoelke, Holger

    IPC分类号： H02P7/285

    CPC分类号： G01R19/0092 ,  G01R31/007

    摘要： Vorgestellt wird ein Verfahren zur Messung eines Laststromes (I) einer an einem Gleichspannungsnetz in mindestens zwei Stufen (S 1 , S 2 ) betreibbaren Last (10, 12) mit einem ersten (T 1 ) und wenigstens einem zweiten Schalter (T 2 ) zum Aktivieren der ersten (S 1 ) bzw. der zumindest zweiten Stufe (S 2 ) der Last (10, 12), sowie mit einer Steuereinheit (26) zum Ansteuern der Schalter (T 1 , T 2 ). Das Verfahren ist dadurch gekennzeichnet, dass während der aktivierten ersten Stufe (S 1 ) in definierten Zeitabständen die Steuereinheit (26) für eine erste festlegbare Zeitdauer (P 1 ) die zumindest zweite Stufe (S 2 ) mittels des wenigstens zweiten Schalters (T 2 ) aktiviert und innerhalb der ersten festlegbaren Zeitdauer (P 1 ) für eine zweite festlegbare Zeitdauer (P 2 ) die erste Stufe (S 1 ) mittels des ersten Schalters (T 1 ) deaktiviert.

    摘要翻译： 用于测量在直流电压网络驱动的负载的负载电流（L）的方法具有用于激活至少两个级（S2）中的第一（S1）的第一（T1）和第二（T2）开关， 负载（10,12）和用于驱动开关（T1，T2）的控制单元（26）。 在第一级（S1）的激活期间，在规定的时间间隔内，控制单元（26）经由第二开关（T2）在固定的持续时间（P1）内激活第二级（S2），并且在第一设定时间 持续时间（P1），第一阶段（S1）由第一开关（T1）停用第二固定时间段（P2）。

    Power field effect transistor driver circuit
    9.
    发明公开
    Power field effect transistor driver circuit 失效
    Treiberschaltung mit Leistungsfeldeffekttistor。

    公开(公告)号：EP0336194A2

    公开(公告)日：1989-10-11

    申请号：EP89104970.2

    申请日：1989-03-20

    申请人： MOTOROLA, INC.

    发明人： Dunn, William Charles ,  McEntarfer, Philip W.

    IPC分类号： H02P7/285 ,  H02H9/04 ,  H03K17/08

    CPC分类号： H02H9/046 ,  H03K17/0822

    摘要： A power field effect transistor driver circuit manufacturable in a MOS process is provided wherein a power field effect transistor (8) provides high current drive capability for driving fractional horsepower DC motors or other inductive loads (9). The power field effect transistor driver circuit provides reliable operation under environmentally harsh conditions such as overvoltage transients at the supply voltage terminals (1,2), loss of ground supply terminal (2) connection, and short circuits at the load terminal (3).

    摘要翻译： 提供了可在MOS工艺中制造的功率场效应晶体管驱动电路，其中功率场效应晶体管（8）提供用于驱动分数马力的直流电动机或其它感性负载（9）的高电流驱动能力。 功率场效应晶体管驱动电路在环境恶劣的条件下提供可靠的工作，例如电源端子（1,2）的过压瞬变，接地电源端子（2）连接的损耗和负载端子（3）的短路。