电容类型要根据介质的种类来分，可分为无机介质电容器、有机介质电容器和电解电容器三大类。不同介质的电容，在结构、成本、特性、用途方面都大不相同。接下来，电解电容厂家为大家介绍电容的9大主要用途：
the types of capacitors can be divided into three categories: inorganic dielectric capacitors, organic dielectric capacitors and electrolytic capacitors. the capacitance of different dielectric is very different in structure, cost, characteristic and application. next, the manufacturers of electrolytic capacitors will introduce the 9 main uses of capacitors
1.隔直流：
1. dc isolation:
作用是阻止直流通过而让交流通过。
the function is to prevent the direct current from passing through and let the alternating current pass through.
2.旁路（去耦）：
2. bypass (decoupling)
为交流电路中某些并联的元件提供低阻抗通路。
it provides a low impedance path for some parallel components in an ac circuit.
3.耦合：
3. coupling:
作为两个电路之间的连接，允许交流信号通过并传输到下一级电路
as a connection between two circuits, it allows the ac signal to pass through and transmit to the next level circuit
4.滤波：
4. filtering:
这个对diy而言很重要，显卡上的电容基本都是这个作用。
this is very important for diy, the capacitance on the graphics card is basically this function.
5.温度补偿：
5. temperature compensation:
针对其它元件对温度的适应性不够带来的影响，而进行补偿，改善电路的稳定性。
in order to improve the stability of the circuit, compensation is made to improve the stability of the circuit.
6.计时：
6. timing:
电容器与电阻器配合使用，确定电路的时间常数。
the capacitor and resistor are used together to determine the time constant of the circuit.
7.调谐：
7. tuning:
对与频率相关的电路进行系统调谐，比如手机、收音机、电视机。
system tuning of frequency related circuits, such as mobile phones, radios, and tvs.
8.整流：
8. rectification:
在预定的时间开或者关半闭导体开关元件。
turn on or off the semi closed conductor switching element at a predetermined time.
9.储能：
9. energy storage:
储存电能，用于必须要的时候释放。例如相机闪光灯，加热设备等等。如今某些电容的储能水平已经接近锂电池的水准，一个电容储存的电能可以供一个手机使用一天。
store electrical energy for release when necessary. for example, camera flash, heating equipment and so on. today, the energy storage level of some capacitors is close to that of lithium batteries, and the energy stored in one capacitor can be used for a mobile phone for a day.
山东红宝电子有限公司是一家专业经营电子元器件的电解电容厂家，专业研发生产和销售电解电容，薄膜电容，高压陶瓷电容，压敏电阻，热敏电阻，金属薄膜电容，独石电容等系列产品，如有需求，我们可以免费为您寄送样品，让您选的放心。
shandong hongbao electronic co., ltd. is a professional manufacturer of electronic components, specializing in r & d, production and sales of electrolytic capacitors, film capacitors, high-voltage ceramic capacitors, varistors, thermistors, metal film capacitors, monolith capacitors and other series of products, if you need, we can send you samples free of charge, so that you can choose at ease.