Drive and steering unit for a wheel of a floor conveyor
    1.
    发明申请
    Drive and steering unit for a wheel of a floor conveyor 有权
    用于地板输送机轮子的驱动和转向单元

    公开(公告)号:US20070119649A1

    公开(公告)日:2007-05-31

    申请号:US11585583

    申请日:2006-10-24

    IPC分类号: B60K1/00

    摘要: Drive and steering unit for a wheel of a floor conveyor, in which a driving motor and a steering motor are disposed coaxially one below the other and are each one coupled via a drive gear or a steering gear, respectively, with a shaft of the wheel or the bearing equipment of the wheel, respectively, wherein one shaft extends as a hollow shaft and the other shaft extends through the hollow shaft, and an electronic control for the driving motor and the steering motor, which is connected with desired value transmitters for the rotational speed and the steering angle, characterised in that the electronic control has at least one circuit board which is coaxially arranged between the driving motor and the steering motor and/or the steering motor and the steering gear.

    摘要翻译: 用于地板输送机的车轮的驱动和转向单元,其中驱动电动机和转向电动机同轴地设置在另一个之下,并且分别通过驱动齿轮或舵机与轮的轴联接 或车轮的轴承设备,其中一个轴作为中空轴延伸,另一个轴延伸穿过中空轴,以及用于驱动电动机和转向电动机的电子控制器,其与期望值发射器连接,用于 旋转速度和转向角度,其特征在于,所述电子控制器具有至少一个同轴地布置在所述驱动电动机和所述转向电动机和/或所述转向电动机和所述舵机之间的电路板。

    Control of power semiconductors through center-tapped transformer with
self-demagnetizing circuitry
    2.
    发明授权
    Control of power semiconductors through center-tapped transformer with self-demagnetizing circuitry 失效
    通过具有自消磁电路的中心抽头变压器控制功率半导体

    公开(公告)号:US4293779A

    公开(公告)日:1981-10-06

    申请号:US14281

    申请日:1979-02-22

    CPC分类号: H02M1/08

    摘要: In order to control a power semiconductor which can be triggered into conduction by pulses of one polarity and quenched again by pulses of the opposite polarity, by transmitting such pulses via a transformer to the power semiconductor connected at the secondary side of the transformer, such a pulse is formed by turning on a first transistor connected between one pole of a voltage source and a tap which divides the primary winding of the transformer into two partial windings, and by selectively turning on either one of second and third transistors each connected to the ends of a respective partial winding, and such a pulse is terminated by switching off the first transistor, while maintaining on the selected second or third transistor in order to cause the demagnetization current of the transformer to flow through the selected transistor and through a Zener diode connected between the tap of the primary winding and the other pole of the voltage source, the anode side of the first Zener diode being connected to the tap of the primary winding.

    摘要翻译: 为了控制可以通过一个极性的脉冲而被触发为导通的功率半导体,并且通过相反极性的脉冲再次淬火,通过经由变压器将这样的脉冲发送到连接在变压器次级侧的功率半导体, 通过接通连接在电压源的一极之间的第一晶体管和将变压器的初级绕组分为两个部分绕组的抽头,并且通过选择性地接通每个连接到端部的第二和第三晶体管中的任一个而形成脉冲 并且通过关闭第一晶体管来终止这样的脉冲,同时保持在所选择的第二或第三晶体管上,以便使变压器的退磁电流流过所选择的晶体管并通过连接的齐纳二极管 在初级绕组的抽头和电压源的另一极之间,第一齐纳器的阳极侧 二极管连接到初级绕组的抽头。