电容工作原理种类很多，在不同的工作原理中，所发挥的作用也有所不同。比如：耦合，滤波、高频消振、谐振等。但在音响中所用到的电容大部分是为了：滤波、补偿、分频、旁路、和微分。电解电容厂家详细介绍下在汽车音响尾箱安装的大电容又是干什么用的呢？

　　There are many kinds of working principles of capacitors, and their functions are different in different working principles. For example: coupling, filtering, high frequency vibration elimination, resonance, etc. But most of the capacitors used in audio are for filtering, compensation, frequency division, bypass, and differential. So what is the use of the large capacitance installed in the car audio trunk?

　　这种电容容量比较大，都以法拉来计算了，也叫法拉电容，别名双电层电容、黄金电容、超级电容。这种法拉电容有圆柱形的，也有方形的，方形的都是容量较大的。法拉电容是电化学性能介于传统电容和电池的一种新型的 电化学储能装置。

　　This kind of capacitance capacity is relatively large, all in farad to calculate, also known as farad capacitance, also known as electric double layer capacitor, gold capacitor, super capacitor. The farad capacitors are cylindrical or square, and the square ones have larger capacity. Faraday capacitor is a new type of electrochemical energy storage device with electrochemical performance between traditional capacitor and battery.

　　它主要是通过双电层电容和氧化还原反应 产生的法拉第准电容存储能量。当前，法拉电容的应用范围非常广泛，尤其是在混合动力汽车方面。

　　It mainly stores energy through electric double layer capacitance and Faraday quasi capacitance generated by redox reaction. At present, farad capacitors are widely used, especially in hybrid electric vehicles.

　　其作为混合动力汽车的电源，可以很好地满足汽车在启动、爬坡和加速时对高功率的需求，从而有效地节约能源并提高电池的使用寿命。

　　As the power supply of hybrid electric vehicle, it can meet the demand of high power when starting, climbing and accelerating, so as to effectively save energy and improve the service life of battery.

　　在汽车音响中，功放释放大动态音乐信号的时候，会在极短的时间内消耗大量的蓄电池里的电能，从而使电能产生瞬间的真空。

　　In car audio, when the power amplifier releases large dynamic music signal, it will consume a lot of electric energy in the battery in a very short time, so that the electric energy can produce instantaneous vacuum.

　　如果有了这个法拉电容就会恰到好处地释放其储备的能量，可以让功放输出更稳定。

　　If you have this farad capacitor, it will release its reserve energy appropriately, which can make the power amplifier output more stable.

　　电容的好处不仅仅能使汽车音响的功放输出稳定，也能够让原车电瓶受益，因为汽车的发电机硅整流到电瓶都没有滤波的东西，有电容后也确实能够让整车电流得到一个更平稳的释放。

　　The advantages of capacitance can not only stabilize the power amplifier output of the car audio, but also benefit the battery of the original car, because there is no filter from the silicon rectification of the generator to the battery, so the current of the whole vehicle can be released more smoothly with the capacitor.