ABB 电容器；CLMD13/4KVAR 690V 50HZ
作用编辑
Function editing
电容器广泛应用在各种高、低频电路和电源电路中，起退耦（指消除或减轻两个以上电路间在某方面相互影响的方法）、耦合（将两个或两个以上的电路连接起来并使之相互影响的方法）滤波（滤除干扰信号、杂波等）、旁路（与某元器件或某电路相并联，其中某一端接地）、谐振（指与电感并联或串联后，其振荡频率与输入频率相同是产生的现象。例如，调谐选择电台频率）、降压、定时等作用。
Capacitors are widely used in all kinds of high and low frequency circuits and power supply circuits, starting and decoupling (means eliminating or reducing the interaction between two or more circuits in some way), coupling (connecting two or more circuits and making them interact), filtering (filtering interference signals, clutters, etc.), bypass. (connected in parallel with a certain component or circuit, in which one end is grounded), resonance (refers to the phenomenon that the oscillation frequency is the same as the input frequency when the inductor is connected in parallel or in series). For example, tuning the radio frequency, reducing the voltage and timing.