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    • 11. 发明授权
    • Overvoltage protection for input/output circuits
    • 输入/输出电路的过压保护
    • US5633773A
    • 1997-05-27
    • US699042
    • 1996-07-30
    • Seppo Suur-Askola
    • Seppo Suur-Askola
    • H02J1/00H02H9/04
    • H02H9/049
    • The invention relates to a method for protecting an I/O electronic circuit against overvoltages. The I/O circuit of the electronic circuit is provided with a current path (1) comprising a first diode (V1N), through which current path a current (ip) flows when the mains voltage is negative, and with a second current path (2) comprising a second diode (V1P) and a thyristor (T1), the thyristor (T1) being fired by a time-delay circuit charged by a positive voltage, and that the current flowing through the current paths (1,2) is used to trigger a protection device.
    • 本发明涉及一种保护I / O电子电路免受过电压的方法。 电子电路的I / O电路设置有电流路径(1),该电流路径(1)包括第一二极管(V1N),当电源电压为负时,电流(ip)流过电流路径,并且具有第二电流路径 2)包括第二二极管(V1P)和晶闸管(T1),晶闸管(T1)由正电压充电的时间延迟电路触发,并且流过电流通路(1,2)的电流为 用于触发保护装置。
    • 13. 发明授权
    • Asynchronous motor and a procedure for the manufacturing of the stator
and/or rotor of an asynchronous motor
    • 异步电动机和用于制造异步电动机的定子和/或转子的程序
    • US5382861A
    • 1995-01-17
    • US40581
    • 1993-03-31
    • Klaus Uuskoski
    • Klaus Uuskoski
    • H02K15/00H02K15/12H02K17/16H02K1/00
    • H02K15/12H02K15/0012H02K17/16H02K17/165
    • An asynchronous motor is disclosed with stator and rotor windings placed in respective grooves, at least one of the windings being a cast winding. The grooves on the stator and those on the rotor are so inclined relative to each other that the groove inclination is approximately 60 to 90% of the pole pitch. In addition, to enhance the effect of the groove inclination, the stator and/or rotor is subjected, after the casting of the windings, to a heat treatment process in which the stator and/or rotor is heated to a high temperature and then cooled. The invention facilitates construction of an asynchronous motor having a reduced magnitude of generator torque of the motor and a changed rotational speed at which it occurs in relation to a conventional asynchronous motor.
    • 公开了一种异步电动机,其中定子和转子绕组放置在相应的槽中,至少一个绕组是铸造绕组。 定子上的凹槽和转子上的凹槽相对于彼此倾斜,使得凹槽倾斜度大约为极间距的60%至90%。 此外,为了增强槽倾斜的作用,定子和/或转子在铸造绕组之后经受热处理工艺,其中定子和/或转子被加热到高温然后冷却 。 本发明有利于构造具有减小的电动机的发电机转矩的大小的异步电动机以及相对于传统的异步电动机发生的改变的转速。