開(kāi)關(guān)電源是現(xiàn)時(shí)信息家電裝具的顯要電源，而電解電容是開(kāi)關(guān)電源中一次和二次回路濾波電路中最重要的器件。開(kāi)關(guān)電源頻頻的小型化、輕量化和跌進(jìn)，在電子設(shè)備中使用量愈來(lái)愈大，普及率越加高。對(duì)應(yīng)的就要求電解電容器袖珍大容量化，耐紋波電流，翻來(lái)覆去低反抗化，高溫度長(zhǎng)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(shù)使用卷繞結(jié)構(gòu)，很容易擴(kuò)展體積，因故單位體積電容量好生大，比另一個(gè)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(jià)的，現(xiàn)代開(kāi)關(guān)電源務(wù)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(lái)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(kāi)關(guān)電源計(jì)劃性過(guò)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(lái)說(shuō)，歸因于鋁電解電容的價(jià)格便宜，為此，至此應(yīng)用的無(wú)上廣泛。鋁電解電容的壽命往往會(huì)化為全總裝具的薄弱環(huán)節(jié)。

　　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(zhǎng)久工作的環(huán)境溫度有直接提到，溫度越高，電容器的壽數(shù)越短。普通的電解電容器在環(huán)境溫度為90℃時(shí)現(xiàn)已毀掉。但是現(xiàn)今有不少檔級(jí)的電解容電器的辦事環(huán)境溫度久已很高在環(huán)境溫度為90℃，經(jīng)過(guò)電解電容器的交流電流和額定脈沖電流的比為0.5時(shí)，人壽援例為10000h，不過(guò)倘使溫度升騰到95℃時(shí)，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(shù)還與容電器長(zhǎng)時(shí)間干活的交流電流與額定脈沖電流（相似是指在85℃的環(huán)境溫度下測(cè)試值，然則有片段耐高溫的電解容電器是在125℃時(shí)測(cè)試的額數(shù)）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(kāi)關(guān)電源為了跌進(jìn)而增高了工作頻率的屢次化，特為是袖珍高輸出開(kāi)關(guān)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(lián)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(duì)鋁電解電容器的影響非同兒戲是在ESR上發(fā)生功耗使鋁電解容電器發(fā)熱，跟腳濃縮使用壽命。一般說(shuō)來(lái)，反激式變換器時(shí)有發(fā)生的電鈕演替電流相對(duì)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(lái)說(shuō)，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(shù)目字設(shè)備中，趁機(jī)機(jī)能的加進(jìn)，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(kāi)關(guān)電源是一種運(yùn)用電門式?jīng)Q定的直流穩(wěn)壓電源，它以袖珍、輕量和高效率的表征被廣泛應(yīng)用于各種通信設(shè)施、家電、微機(jī)及其終端設(shè)備。看成輸入濾波和平滑用意的鋁電解電容器，它的質(zhì)量和可靠性直接影響到開(kāi)關(guān)電源的可靠性。倘或鋁電解電容器失效，就會(huì)以致電鍵穩(wěn)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(kāi)關(guān)穩(wěn)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(shù)超差失靈。內(nèi)部擊穿失靈又分成介質(zhì)擊穿和熱擊穿，對(duì)此大功率和大電流輸出的開(kāi)關(guān)電源用電解電容器，熱擊穿失靈常占勢(shì)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(wěn)壓電源用鋁電解電容器開(kāi)掘失效的重中之重失靈模式；漏液是電鈕穩(wěn)壓電源用鋁電解電容器常見(jiàn)的失效模式，鑒于動(dòng)用環(huán)境及勞作狀態(tài)較嚴(yán)酷，常產(chǎn)生漏液失效；電鈕穩(wěn)壓電源用鋁電解容電器在利用中最常見(jiàn)的失靈模式是電容量調(diào)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(shì)電子設(shè)備的小型化，更其要求電解容電器兼?zhèn)涓玫念l率特性、更低ESR、更低抵御、 更低ESL，更高耐壓通性、無(wú)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.