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    Solar cell power source device
    1.
    发明授权
    Solar cell power source device 失效
    太阳能电池电源装置

    公开(公告)号：US5932994A

    公开(公告)日：1999-08-03

    申请号：US853379

    申请日：1997-05-08

    申请人： Hyun-min Jo ,  Yong-ho Kim

    发明人： Hyun-min Jo ,  Yong-ho Kim

    IPC分类号： H02J7/35 ,  G05F1/67 ,  H01L31/04 ,  H02M3/155 ,  G05F5/00

    CPC分类号： G05F1/67 ,  Y02E10/58 ,  Y10S323/906

    摘要： A solar cell power source device is disclosed which optimizes the power output of the solar cell by detecting a maximum power point of the solar cell and controlling the duty cycle of a switching transistor in a switching power converter such that the output current of the solar cell follows the maximum power point. Also shown is a pulse width modulation controller which multiplies the output voltage of the solar cell by the output current of the solar cell to obtain a power detecting signal, samples the power detecting signal during two different sample periods to determine if the power output is decreasing, and modulating the pulses output to the switching transistor of the switching power converter in order to maintain the power output of the solar cell at the maximum power point.

    摘要翻译： 公开了一种太阳能电池电源装置，其通过检测太阳能电池的最大功率点并控制开关电源转换器中的开关晶体管的占空比来优化太阳能电池的功率输出，使得太阳能电池的输出电流 遵循最大功率点。 还示出了脉冲宽度调制控制器，其将太阳能电池的输出电压乘以太阳能电池的输出电流以获得功率检测信号，在两个不同的采样周期内对功率检测信号进行采样，以确定功率输出是否减少 并且调制输出到开关电源转换器的开关晶体管的脉冲，以便将太阳能电池的功率输出保持在最大功率点。

    Driving apparatus for stabilizing operation of an extensible-retractable power antenna
    3.
    发明授权
    Driving apparatus for stabilizing operation of an extensible-retractable power antenna 失效
    用于稳定可伸缩动力天线的操作的驱动装置

    公开(公告)号：US5684662A

    公开(公告)日：1997-11-04

    申请号：US580883

    申请日：1995-12-29

    申请人： Hyun-min Jo ,  Yong-ho Kim

    发明人： Hyun-min Jo ,  Yong-ho Kim

    IPC分类号： H01Q1/08 ,  H01Q1/10 ,  H02H7/085 ,  H02H5/04

    CPC分类号： H01Q1/103 ,  H02H7/0851 ,  Y10S388/916

    摘要： The driving apparatus for a power antenna, e.g. an extensible-retractable automotive radio antenna, is provided with stability function which controls the operation of the motor driving the power antenna until the power antenna is varied into a state for performing normal operation, and provides hysteresis to prevent a state of the controlling signal from being varied too often by a voltage drop generated in rotation of the motor.

    摘要翻译： 用于功率天线的驱动装置，例如， 可伸缩式汽车无线电天线具有稳定的功能，其控制驱动功率天线的电动机的操作，直到功率天线变为进行正常操作的状态为止，并提供滞后以防止控制信号的状态 由于电动机的旋转中产生的电压降常常变化。

    Overcurrent detecting device for a DC motor
    5.
    发明授权
    Overcurrent detecting device for a DC motor 失效
    直流电机用过电流检测装置

    公开(公告)号：US5666066A

    公开(公告)日：1997-09-09

    申请号：US564726

    申请日：1995-11-29

    申请人： Hyun-min Jo

    发明人： Hyun-min Jo

    IPC分类号： G01R19/165 ,  H02H7/085 ,  H02P7/06 ,  H02P5/40

    CPC分类号： G01R19/16571 ,  H02H7/0854

    摘要： An overcurrent-detecting device for a DC motor includes a converter for changing a current signal to a voltage signal in a motor; an integrator for comparing an input signal from the convertor with a first reference voltage, and for integrating an excessive value of the reference voltage; and a detector for comparing an input signal from the integrator with a second reference voltage, sensing an overcurrent when the input signal is smaller than the second reference voltage, and outputting a resultant signal. In detecting an overcurrent of the DC motor, the device integrates a higher voltage than a reference voltage, and then detects an overcurrent when the DC motor is constrained. This overcurrent-detecting device, therefore, can be exactly operated by a small-capacity capacitor without incorrect operation with respect to noise and abrupt overload, while not permitting forced operation in the initial operation, and also can be operated quickly in response to an actual mechanical constraint having a reasonable overcurrent.

    摘要翻译： 用于直流电动机的过电流检测装置包括用于将电流信号改变为电动机中的电压信号的转换器; 积分器，用于将来自转换器的输入信号与第一参考电压进行比较，并用于积分参考电压的过大值; 以及用于将来自积分器的输入信号与第二参考电压进行比较的检测器，当输入信号小于第二参考电压时感测过电流，并输出结果信号。 在检测到直流电动机的过电流时，器件集成了比参考电压更高的电压，然后在直流电动机被约束时检测过电流。 因此，这种过电流检测装置可以由小容量电容器精确地操作，而不会在噪声和突然过载方面进行不正确的操作，而不允许在初始操作中强制操作，并且还可以响应于实际的 机械约束具有合理的过电流。