400V5600UF电子元件 全新螺丝脚电解电容器 450VDC YADACON 雅达康

In DC circuits, capacitors are equivalent to open circuits. Capacitors are one of the most commonly used electronic components to store charge. However, in AC circuits, the direction of the current changes with time. The charging and discharging process of capacitors is time-dependent, and at this time, a varying electric field is formed between the plates, and this electric field is a function of the change with time. In fact, the current passes between capacitors in the form of an electric field. The function of capacitors: coupling: the capacitors used in coupling circuits are called coupling capacitors. They are widely used in resistive and capacitive coupled amplifiers and other capacitive coupling circuits to act as an alternating current between direct current and direct current [2]. Filtering: capacitors used in filter circuits are called filter capacitors, which are used in power supply filtering and various filter circuits. The filter capacitors remove signals in a certain frequency band from the total signal [2].