YCB YCBP YCBPG扁电缆

江苏春晨电缆有限公司生产YCB YCBP YCBPG扁电缆，

电感、电容滤波电路

Inductance and capacitance filter circuit

电感和电容滤波电路

Inductance and capacitance filter circuit

如上图所示的电路时在整流电路与滤波电路之间串联一个电感线圈，构成了电感、电容滤波电路，此电路能进一步减小输出电压uouo的脉动程度。当通过电感线圈的电流变化时，电感线圈则产生感应电动势阻碍电流变化，也可理解为当电流减小时，电感线圈将储存的能量释放给负载，这样使负载电流和负载电压脉动程度减小。电感量越大，滤波效果越好。

As shown in the above figure, an inductance coil is connected in series between the rectifier circuit and the filter circuit to form the inductance and capacitance filter circuit, which can further reduce the fluctuation of the output voltage UOUO. When the current through the inductance coil changes, the induction electromotive force will be generated by the inductance coil to prevent the current change. It can also be understood that when the current decreases, the inductance coil will release the stored energy to the load, so that the load current and load voltage pulsation will be reduced. The larger the inductance, the better the filtering effect.

一般滤波线圈采用铁心电感线圈，成本高、体积大，又比较笨重。所以电感、电容滤波适用于负载电流较大（即RLRL小），要求输出电压脉动较小的场合。YCB YCBP YCBPG扁电缆

Generally, the filter coil adopts iron core inductance coil, which has high cost, large volume and heavy weight. Therefore, inductive and capacitive filtering is suitable for the occasion of large load current (i.e. small rlrl) and small output voltage ripple.