| 摘要 |
本案关于一种抑制输入电流波形谐波失真之控制方法，适用于功率因数修正器，包含步骤：(a)接收运算电路输出之电流命令信号；(b)将电流命令信号与输入电流比较以取得电流误差信号；(c)对电流误差信号进行调整；(d)判断功率因素修正器是否运作于第一模式与第二模式切换的转态区间内，若判断结果为是，将调整前之电流误差信号与前馈信号进行加法运算，并将运算结果与调整后之电流误差信号进行加法运算，以产生电流控制信号； (e)根据电流控制信号产生切换控制信号，以控制电源转换电路之切换开关运作，俾抑制电源转换电路之输入电流波形之谐波失真。;A control method for inhibiting harmonic distortion of an input current is disclosed.The control method applied to a power factor corrector comprises the steps of：(a) receiving a current command signal outputting from an operational circuit；(b) comparing the current command signal with the input current to get a current error signal；(c) regulating the current error signal；(d) determining if the power factor corrector operates in a state switching interval between a first mode and a second mode, and if the result is “YES”, adding the current error signal without regulating to a feedback signal, and then adding the above adding result to the regulated current error signal to generate a current control signal；(e) generating a switching control signal in according to the current control signal to control an operation of a switch of a power converter so as to inhibit harmonic distortion of the input current. |
