Capacitors are essential components of virtually every type of electronic equipment. They are widely used for bypassing, coupling, filtering, and tuning electronic circuits.
电容器是各种电子设备中的基本元件，广泛地应用于对电子电路进行旁路、耦合、滤波和调谐等。
2
Capacitors used in coupling and dc blocking applications serve to couple RF energy with the minimal energy wasting from one part of a circuit to another.