開關電源是現時信息家電裝具的顯要電源，而電解電容是開關電源中一次和二次回路濾波電路中最重要的器件。開關電源頻頻的小型化、輕量化和跌進，在電子設備中使用量愈來愈大，普及率越加高。對應的就要求電解電容器袖珍大容量化，耐紋波電流，翻來覆去低反抗化，高溫度長人壽化和更恰切高密度組建。

　　Switching power supply is an important power supply for information appliances, and electrolytic capacitor is the most important device in primary and secondary circuit filter circuit of switching power supply. The frequency of switching power supply miniaturization, lightweight and falling, in electronic equipment is more and more used, the popularity rate is higher and higher. Corresponding to the requirements of electrolytic capacitor pocket, large capacity, ripple current resistance, low resistance, high temperature long life and more appropriate high density.

　　鑒于電解容電器多數使用卷繞結構，很容易擴展體積，因故單位體積電容量好生大，比另一個電容大幾倍到幾十倍。可是大電容量的獲得是以體積的壯大為代價的，現代開關電源務求越是高的效率，越加小的體積，因此，有必要尋求新的解決辦法，來取得大電容量、小體積的電容器。

　　In view of the fact that most electrolytic capacitors use winding structure, it is easy to expand the volume. Because of this, the electric capacity per unit volume is large, which is several to dozens times larger than that of another capacitor. However, the acquisition of large capacitance is at the cost of volume expansion. The higher the efficiency of modern switching power supply is, the smaller the volume is. Therefore, it is necessary to seek new solutions to obtain large capacity and small volume capacitors.

　　在開關電源計劃性過程中，不可避免地要挑選適用的電容。就100μF之上的中、大容量出品來說，歸因于鋁電解電容的價格便宜，為此，至此應用的無上廣泛。鋁電解電容的壽命往往會化為全總裝具的薄弱環節。

　　In the planning process of switching power supply, it is inevitable to select the suitable capacitor. For the medium and large capacity products above 100 μ F, due to the low price of aluminum electrolytic capacitor, so far, it has been widely used. The life of aluminum electrolytic capacitor often becomes the weak link of total assembly.

　　電解容電器的壽命與容電器長久工作的環境溫度有直接提到，溫度越高，電容器的壽數越短。普通的電解電容器在環境溫度為90℃時現已毀掉。但是現今有不少檔級的電解容電器的辦事環境溫度久已很高在環境溫度為90℃，經過電解電容器的交流電流和額定脈沖電流的比為0.5時，人壽援例為10000h，不過倘使溫度升騰到95℃時，電解電容器即早就毀掉。

　　The life of electrolytic capacitor is directly related to the ambient temperature of capacitor working for a long time. The higher the temperature is, the shorter the life of capacitor is. The common electrolytic capacitor has been destroyed when the ambient temperature is 90 ℃. However, the working environment temperature of many electrolytic capacitors has been very high for a long time. When the ambient temperature is 90 ℃, the ratio of AC current to rated pulse current of electrolytic capacitor is 0.5, the life assistance is 10000 hours. However, if the temperature rises to 95 ℃, the electrolytic capacitor will be destroyed.

　　一方面，電解容電器的壽數還與容電器長時間干活的交流電流與額定脈沖電流（相似是指在85℃的環境溫度下測試值，然則有片段耐高溫的電解容電器是在125℃時測試的額數）的比值至于。

　　On the one hand, the service life of the electrolytic capacitor is also the ratio of the AC current and the rated pulse current of the capacitor working for a long time (similar to the test value at 85 ℃, but the electrolytic capacitor with high temperature resistance is tested at 125 ℃).

　　開關電源為了跌進而增高了工作頻率的屢次化，特為是袖珍高輸出開關電源中輸入濾波用容電器渴求高紋波性，輸出端低反抗化。要使輸出濾波用電容器在再三下低抗御化，必須減退同等串聯電阻。

　　Switching power supply increases the frequency of operation in order to fall in, especially the capacitor for input filter in pocket high output switching power supply is eager for high ripple and low resistance at the output end. In order to make the output filter capacitor with low resistance again and again, the same series resistance must be reduced.

　　紋波電流對鋁電解電容器的影響非同兒戲是在ESR上發生功耗使鋁電解容電器發熱，跟腳濃縮使用壽命。一般說來，反激式變換器時有發生的電鈕演替電流相對最大。

　　The effect of ripple current on aluminum electrolytic capacitor is not a trifling matter. The power consumption on ESR causes the aluminum electrolytic capacitor to heat up and concentrate its service life. Generally speaking, the switching current of flyback converter is relatively maximum.

　　就平板電視來說，為著能接受大電流，就急需尤其下挫電容的ESR。其青紅皂白是，在數目字設備中，趁機機能的加進，電路的電流有越是大的矛頭。

　　As far as flat panel TV is concerned, in order to accept large current, ESR with especially reduced capacitance is urgently needed. What's more, in the numeral equipment, the greater the current of the circuit will be.

　　開關電源是一種運用電門式決定的直流穩壓電源，它以袖珍、輕量和高效率的表征被廣泛應用于各種通信設施、家電、微機及其終端設備。看成輸入濾波和平滑用意的鋁電解電容器，它的質量和可靠性直接影響到開關電源的可靠性。倘或鋁電解電容器失效，就會以致電鍵穩壓電源的故障。

　　Switching power supply is a kind of DC regulated power supply which is determined by the switch mode. It is characterized by small size, light weight and high efficiency, and is widely used in various communication facilities, household appliances, microcomputers and terminal equipment. As the purpose of input filtering and smoothing, the quality and reliability of aluminum electrolytic capacitor directly affect the reliability of switching power supply. If the aluminum electrolytic capacitor fails, it will lead to the failure of the power supply.

　　開關穩壓電源用鋁電解容電器的失靈模式有擊穿失效、挖沙失效、漏液失效及電參數超差失靈。內部擊穿失靈又分成介質擊穿和熱擊穿，對此大功率和大電流輸出的開關電源用電解電容器，熱擊穿失靈常占勢必百分比；電腐蝕引致鋁引入條折和容電器芯子枯竭，使電鈕穩壓電源用鋁電解電容器開掘失效的重中之重失靈模式；漏液是電鈕穩壓電源用鋁電解電容器常見的失效模式，鑒于動用環境及勞作狀態較嚴酷，常產生漏液失效；電鈕穩壓電源用鋁電解容電器在利用中最常見的失靈模式是電容量調減、電擊流疊加及損耗角正切值外加。

　　The failure modes of aluminum electrolytic capacitor for switching power supply include breakdown failure, dredging failure, leakage failure and electrical parameter out of tolerance failure. The internal breakdown failure is divided into dielectric breakdown and thermal breakdown. For the electrolytic capacitors with high power and high current output, the thermal breakdown failure often accounts for a certain percentage; the electrolytic capacitor for button regulated power supply is the most important failure mode due to the introduction of aluminum strip and the depletion of capacitor core due to electrical corrosion; leakage is the aluminum electrolytic capacitor for button regulated power supply The most common failure modes of aluminum electrolytic capacitors for button regulated power supply are capacitor reduction, electric shock current superposition and loss tangent addition.

　　在電子線路中電解容電器是短不了的，而且，就勢電子設備的小型化，更其要求電解容電器兼備更好的頻率特性、更低ESR、更低抵御、 更低ESL，更高耐壓通性、無鉛化，這也是電解電容器事后的上移系列化。

　　In the electronic circuit, the electrolytic capacitor is not short. Moreover, with the miniaturization of the electronic equipment, the electrolytic capacitor is required to have better frequency characteristics, lower ESR, lower resistance, lower ESL, higher withstand voltage and lead-free, which is also the upward shift serialization of electrolytic capacitor.