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固态电容与液体电解电容的“利”与“弊”
作者:红宝电容 来源:本站原创 日期:2020-07-15 11:06 浏览

  固态电容采用了高分子电介质,固态粒子在高温下,无论是粒子澎涨或是活跃性均较液态电解液低,它的沸点也高达摄氏350度,因此几乎不可能出现爆浆的可能性。从理论上来说,固态电容几乎不可能爆浆。

  Polymer dielectric is used in solid state capacitor. At high temperature, the expansion and activity of solid particles are lower than that of liquid electrolyte, and its boiling point is as high as 350 ℃. Therefore, it is almost impossible to burst slurry. Theoretically, it is almost impossible for solid state capacitors to burst.

  液体电解电容的电介质为液态电解液,液态粒子在高温下十分活跃,对电容内部产生压力,它的沸点不是很高,因此可能会出现爆浆的情况。

  The dielectric of the liquid electrolytic capacitor is liquid electrolyte. The liquid particles are very active at high temperature, which produces pressure on the capacitor. Its boiling point is not very high, so the slurry may burst.

  固态电容在等效串联阻抗表现上相比传统电解电容有更优异的表现,据测试显示,固态电容在高频运作时等效串联电阻极为微小,而且导电性频率特佳,具有降低电阻抗和更低热输出的特色,在100KHz至10MHz之间表现最为明显。

  Compared with the traditional electrolytic capacitor, the solid-state capacitor has better performance in the equivalent series impedance performance. According to the test results, the equivalent series resistance of the solid-state capacitor is very small in high-frequency operation, and the conductivity frequency is excellent. It has the characteristics of reducing the resistance and lower thermal output, which is most obvious between 100kHz and 10MHz.

电解电容.jpg

  ▲ 固态电容

  Solid state capacitor

  而传统电解电容比较容易受使用环境的温度和湿度影响,在高低温稳定性方面稍差。即使是在零下摄氏55度至105度,固态电容的ESR(等效串联电阻)阻抗可以低达0.004~0.005欧姆,但电解电容则会因温度而改变。

  However, the traditional electrolytic capacitor is easy to be affected by the temperature and humidity of the environment, which is slightly poor in high and low temperature stability. The ESR (equivalent series resistance) impedance of solid-state capacitor can be as low as 0.004-0.005 ohm even at minus 55 ℃ to 105 ℃, but the electrolytic capacitor will change with temperature.

  ▲ 电解电容

  Electrolytic capacitor

  在电容值方面,液态电容在摄氏20度以下,将会比其标示的电容值为低,温度越低电容值也会随之而下降,在摄氏零下20度下电容量下降约13%、摄氏零下55度下电容量更达至37%。

  In terms of capacitance value, liquid capacitance below 20 ℃ will be lower than the indicated capacitance value. The lower the temperature is, the lower the capacitance value will be. The capacitance will decrease by about 13% at minus 20 ℃ and 37% at - 55 ℃.

  当然,这对普通用户来说没有什么影响,但对于采用液态氮作终极超频的玩家来说,固态电容可保证不会因温度降低而使电容容量上受到影响,从而导致超频稳定性大打折扣,因为固态电容在零下55度其电容值只会下降不足5%。固态电容确实有很多优点,但它并不是任何时候都适用。

  Of course, this has no impact on ordinary users, but for players who use liquid nitrogen as the ultimate overclocking, the solid-state capacitor can ensure that the capacitance will not be affected by the temperature drop, which will greatly reduce the overclocking stability, because the capacitance value of the solid-state capacitor at 55 degrees below zero will only drop by less than 5%. Solid state capacitors do have many advantages, but they don't always work.

  固态电容的低频响应不如电解电容,如果用于涉及到音效的部分会得不到最佳的音质效果。也就是说,一款主板采用全固态电容并不一定是最合理的!

  The low frequency response of solid-state capacitor is not as good as electrolytic capacitor. If it is used in the part involving sound effect, it will not get the best sound quality effect. In other words, a motherboard using all solid state capacitors is not necessarily the most reasonable!

固态电容.jpg

  不管是固态电容还是电解电容,它们的主要作用是滤除杂波,因此电容只要容量达到一定的数值要求即可,只要其元件质量过关,也能确保主板的稳定运行。而这一点,电解电容也完全能做到!

  No matter it is solid-state capacitor or electrolytic capacitor, their main function is to filter out the clutter. Therefore, as long as the capacity of the capacitor reaches a certain value requirement, as long as its component quality is up to standard, it can also ensure the stable operation of the main board. And this, electrolytic capacitor also can do completely!

  固态电容在105摄氏度的时候,它和电解电容的寿命同样为2000小时,在温度降低后,它们的寿命会增加,但是固态电容寿命增加的幅度更大,一般情况下电容的工作温度在70度或更低。

  When the temperature is 105 ℃, the life of solid-state capacitor and electrolytic capacitor is the same as 2000 hours. When the temperature is reduced, their life will increase, but the life of solid-state capacitor will increase more. Generally, the working temperature of capacitor is 70 ℃ or lower.

  固态电容与电解电容相比,同体积同电压下,电解电容的容量远大于固态电容,目前电脑主板CPU电源部分大都采用固态电容,虽避免了爆浆问题,但由于体积限制,容量冗余很少;再者因容量问题,不得不提高CPU供电部分开关的频率。

  Compared with electrolytic capacitor, the capacity of solid-state capacitor is much larger than that of solid-state capacitor under the same volume and voltage. At present, the CPU power supply of computer motherboard mostly adopts solid-state capacitor, which avoids the problem of slurry explosion, but due to the volume limitation, the capacity redundancy is very small; moreover, due to the capacity problem, the switching frequency of CPU power supply part has to be increased.

  固态电容和电解电容在使用过程中都会出现容量衰减问题,而采用固态电容的电路板,容量稍有波动,就会使电源出现波纹,造成CPU不能正常工作。因此,理论上固态电容的寿命很高,但采用固态电容的板子寿命就未必高。

  Both solid-state capacitor and electrolytic capacitor will have capacity attenuation problem in the use process. However, if the capacity of the circuit board with solid-state capacitor fluctuates slightly, the power supply will ripple and CPU will not work normally. Therefore, in theory, the lifetime of solid-state capacitor is very high, but the life of the board with solid-state capacitor is not necessarily high.

  理论上固态电容的寿命很高,但是在实际使用过程中仍然会出现很多故障,这就需要用户在使用电容元件的过程中注意其控制工作环境的温度,如果温度过高或者过低都会影响电容的正常使用寿命。

  However, if the temperature of the capacitor is too low, it will affect the life of the capacitor.


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