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    • 8. 发明公开
    • A voltage control apparatus for electric generators for vehicles
    • Spannungssteuereinrichtungfürelektrische GeneratorenfürFahrzeuge。
    • EP0009895A1
    • 1980-04-16
    • EP79301846.6
    • 1979-09-07
    • NIPPONDENSO CO., LTD.
    • Mori, KazumasaAsahi, TaroBanzai, KeiichiroIwaki, KatsutaroMuto, KatsuyaMase, AkiraNimura, TakayasuItoh, KatsuiAkita, Yoshio
    • H02P9/30H02J7/24G05F1/58
    • H02J7/245H02P9/305Y02T10/7005Y02T10/92
    • A voltage control apparatus for an electric generator (2-4) for vehicles includes an armature winding (3), an exciting coil (4), a rectifier (2) for rectifying an a.c. output from the armature winding (3), and a voltage regulator (5). The voltage regulator (5) comprises a differential amplifier circuit (26) producing a detected voltage corresponding to a difference between a battery charging voltage and a reference voltage, a comparator circuit (30) comparing the detected voltage with a triangular waveform voltage generated at constant periods and producing a pulsed output voltage, a first driver circuit (51) effecting duty-factor-control of an exciting current flowing through the exciting coil (4) in response to the pulsed output voltage, and an initial excitation circuit (32) for causing a predetermined small initial exciting current to flow through the exciting coil (4) intermittently during a time interval after the start of the electric generator (2-4).
    • 用于车辆的发电机(2-4)的电压控制装置包括电枢绕组(3),励磁线圈(4),整流器(2),用于整流交流电。 从电枢绕组(3)输出的电压调节器(5)。 电压调节器(5)包括差分放大器电路(26),产生对应于电池充电电压和参考电压之间的差的检测电压;比较器电路(30),用于将检测到的电压与恒定产生的三角波形电压进行比较 并产生脉冲输出电压;第一驱动电路(51)响应脉冲输出电压对流过励磁线圈(4)的励磁电流进行占空因数控制;以及初始激励电路(32),用于 使得预定的小的初始激励电流在发电机(2-4)启动之后的时间间隔内间歇地流过励磁线圈(4)。