公开(公告)号：US20020163323A1

公开(公告)日：2002-11-07

申请号：US10092993

申请日：2002-03-08

Applicant: National Inst. of Advanced Ind. Science and Tech.

Inventor： Yuji Kasai ,  Fumihisa Kano

IPC: G05F001/40

CPC classification number: G05F1/67 ,  H02J7/35 ,  H02M3/156 ,  Y02E10/566 ,  Y02E10/58

Abstract: The output current value of a direct-current power source obtained by low-frequency, minute modulation of the input voltage of a switching converter is detected in a circuit having an amplification factor switching function that switches the amplification factor between definite magnitudes synchronizing with the modulation, and by using a signal obtained by demodulating in a discriminator circuit the output of this circuit synchronizing with the modulation to control the switching converter, the power point of the switching converter can be tracked to the maximum power point by following the change in state of the direct current power source.

Abstract translation: 在具有放大因子切换功能的电路中检测通过对开关转换器的输入电压进行低频，微调制而获得的直流电源的输出电流值，该放大因子切换功能将确定幅度的放大系数与调制同步 并且通过使用在鉴频电路中解调得到的信号，该电路的输出与调制同步以控制开关转换器，开关转换器的功率点可以通过跟随开关转换器的状态变化而跟踪到最大功率点 直流电源。