亚洲精品成人网-亚洲精品成人网久久久久久-亚洲精品成人中文网-亚洲精品大片-日本欧美在线-日本欧美在线播放

×
提示信息:
確認
歡迎來到紅寶電子!
0531-8228 6666
當(dāng)前位置: 主頁 > 中文版 > 新聞資訊 > 公司新聞
電解電容壽命一般多長?來看看電解電容壽命的計算公式!
作者:山東紅寶電子 來源:www.92is.com 日期:2024-02-03 14:29 瀏覽

  電容的規(guī)格書中經(jīng)常會出現(xiàn)電解電容的壽命是2000小時或者5000小時或者10000小時不等。很多客戶會問:“如果按照一天24小時計算的話,假設(shè)一個設(shè)備每天工作12小時,選用的是2000小時的電解電容的話,那該電容的使用時長只有不到200天,這使用壽命也太短了吧!真的是這樣嗎?

  The specifications of capacitors often indicate that the lifespan of electrolytic capacitors ranges from 2000 hours to 5000 hours or 10000 hours. Many customers ask, "If we calculate based on 24 hours a day, assuming a device works 12 hours a day and uses 2000 hours of electrolytic capacitors, then the lifespan of the capacitor is less than 200 days, which is too short! Is this really true?"?

  答案當(dāng)然是否定的。電解電容的壽命不是這樣計算的。電解電容的壽命主要受其所在工作環(huán)境中溫度的影響。通常,溫度每降低10℃,電解電容的壽命就會增加一倍。因此,建議在規(guī)格書標明的最高溫度之內(nèi)使用該電容,以盡可能低的溫度使用電解電容器。

  The answer is certainly negative. The lifespan of electrolytic capacitors is not calculated in this way. The lifespan of electrolytic capacitors is mainly affected by the temperature in their working environment. Usually, for every 10 ℃ decrease in temperature, the lifespan of electrolytic capacitors doubles. Therefore, it is recommended to use the capacitor within the maximum temperature specified in the specifications, and to use electrolytic capacitors at the lowest possible temperature.

三和電解電容

  因為如果工作溫度超過規(guī)格書中標明的最高溫度,電容器的參數(shù)便會下降,在溫度過高的工作環(huán)境下極有損壞甚至爆炸的危險。因為電解電容是靠其內(nèi)部的電解液來工作的,而電解液會不斷蒸發(fā)變少,溫度越高,蒸發(fā)越快,從而會大大減少電解電容的壽命。那么如何分析電解電容的溫升呢?

  Because if the working temperature exceeds the maximum temperature specified in the specifications, the parameters of the capacitor will decrease, and there is a high risk of damage or even explosion in working environments with high temperatures. Because electrolytic capacitors operate on their internal electrolyte, which continuously evaporates less. The higher the temperature, the faster the evaporation, greatly reducing the lifespan of electrolytic capacitors. So how to analyze the temperature rise of electrolytic capacitors?

  要計算電解電容的最高工作溫度,必須考慮以下因素:

  To calculate the maximum operating temperature of an electrolytic capacitor, the following factors must be considered:

  環(huán)境溫度

  ambient temperature

  電容器紋波電流引起的溫升。這個值基本上取決于電容器的ESR,也就是其內(nèi)部電阻,以及工作頻率。

  The temperature rise caused by the ripple current of the capacitor. This value basically depends on the ESR of the capacitor, which is its internal resistance and operating frequency.

  在同一電路板上,靠近電容器的其他電子組件(功率晶體管,穩(wěn)壓器,功率電阻器等)傳導(dǎo)和輻射的熱量。

  The heat conducted and radiated by other electronic components (power transistors, regulators, power resistors, etc.) near capacitors on the same circuit board.

  電解電容結(jié)構(gòu)

  Electrolytic capacitor structure

  壽命計算

  Lifetime calculation

  計算公式

  Calculation formula

  L1:在溫度T1時的保證壽命(以小時為單位),也就是電解電容規(guī)格書中給出的壽命值。

  The guaranteed lifespan (in hours) at temperature T1, which is the lifespan value given in the electrolytic capacitor specification book.

  L2:在溫度T2下的預(yù)期壽命(以小時為單位)。

  Expected lifespan at temperature T2 (in hours).

  T1:電解電容規(guī)格書中給出的最高工作溫度。

  The maximum operating temperature given in the electrolytic capacitor specification book.

  T2:電解電容實際工作的最高工作溫度。

  The maximum operating temperature at which electrolytic capacitors actually operate.

  舉個例子,某個電解電容在最大溫度為105℃時,壽命為2000小時。根據(jù)計算公式,如果電解電容實際工作的最大溫度是40℃,可以計算出其工作壽命是2000*2^(105-40)/10=181019H≈20年。但是事實上我們一般是知道設(shè)計壽命,然后根據(jù)設(shè)計壽命計算溫升,比如說如果產(chǎn)品的設(shè)計使用壽命為3年,也就是26280小時。則10*log2(26280/2000)=37.3℃,那么設(shè)計工作溫度不能超過65℃。

  For example, a certain electrolytic capacitor has a lifespan of 2000 hours at a maximum temperature of 105 ℃. According to the calculation formula, if the actual maximum working temperature of the electrolytic capacitor is 40 ℃, its working life can be calculated to be 2000 * 2 ^ (105-40)/10=181019H ≈ 20 years. But in fact, we usually know the design life and calculate the temperature rise based on the design life. For example, if the product's design service life is 3 years, that is 26280 hours. If 10 * log2 (26280/2000)=37.3 ℃, then the design working temperature cannot exceed 65 ℃.

  以上就是計算電解電容壽命的方法,山東紅寶電子從事電子元件多年,有豐富的選型經(jīng)驗,能夠根據(jù)客戶行業(yè),所用產(chǎn)品,工作環(huán)境等推薦適合的電子元器件,如果電子元件采購需求歡迎隨時聯(lián)系我們。

  The above is the method for calculating the lifespan of electrolytic capacitors. Shandong Hongbao Electronics has been engaged in electronic components for many years and has rich selection experience. It can recommend suitable electronic components based on customer industries, products used, working environments, etc. If you have any purchasing needs for electronic components, please feel free to contact us at any time.

×
預(yù)約上門
請撥打銷售熱線 0531-8228 6666,或讓我們聯(lián)系您!
聯(lián)系人:
*
電話:
*
留言內(nèi)容:
主站蜘蛛池模板: 国产精品αv在线观看| 国产精品亲子乱子伦xxxx裸| 国产一级免费视频| 久久图| 免费a在线播放| 久久精品国产91久久麻豆自制| 久青草青综合在线视频| 国产午夜三级| 国产aav| 毛片亚洲毛片亚洲毛片| 男女乱淫真视频播放网站| 国产一级高清视频免费看| 免费淫片| 久久永久免费视频| 久久伊人网视频| 国产精品手机在线| 国产在线观看青草视频| 久久亚洲综合色| 久青草国产在线视频亚瑟影视| 国产69成人免费视频观看 | 国产精品9999久久久久仙踪林| 精品欧美一区二区三区| 给我免费播放片黄色| 久久加久久| 国产限制级在线观看| 国产乱子精品免费视观看片| 黄色在线观看国产| 狠狠色成人综合网图片区| 玖玖影院在线观看| 九色97| 久久精品国产99久久久| 国产高清在线视频| 国产日韩第一页| 久国产视频| 国产精品嫩草影院免费| 狠狠色欧美亚洲综合色黑a| 国产网站免费观看| 精品一区二区在线欧美日韩| 国产片在线观看狂喷潮bt天堂| 九热在线| 国产日韩欧美swag在线观看|