貼片鉭電容方波是一個(gè)無(wú)窮級(jí)數(shù)的正弦波的總和在所有的基本方波的奇次諧波頻率。在直接工作電壓的 貼片電容不得超出的應(yīng)用正峰值的總和A.C.電壓和在?偏置電壓。在一個(gè)A.C.應(yīng)用程序產(chǎn)生的熱量在貼片電容通過(guò)雙方的A.C.分量信號(hào)(這將取決于后的信號(hào)形式,幅度和頻率),并經(jīng)直流漏電流。
貼片鉭電容zui大紋波電壓但已被證明對(duì)熱鉭電容的文章管理一梳,一個(gè)導(dǎo)熱貼片鉭電容器很大的差異取決于它是如何安裝的。一臺(tái)設(shè)備的設(shè)計(jì),將通過(guò)正弦通過(guò)不同幅度的方波電流偏置電容。對(duì)身體的溫度上升電容器,然后用紅外線探頭。這就確保了沒(méi)有通過(guò)任何熱電偶的熱損失電容器的表面。
實(shí)際功率耗散在電容使用以下公式計(jì)算:P = I 2 R和重新安排,以我= SQRT(P / R的).....(式1)其中RMS紋波電流,安培R =等效串聯(lián)電阻,歐姆U = RMS紋波電壓,伏P =功率消耗,瓦Z =阻抗,歐姆,頻率,下考慮zui大A.C.紋波電壓(UMAX)。所有這些貼片鉭電容測(cè)量在FR4板,沒(méi)有其他的散熱。
SMD tantalum capacitors square wave is a sum of an infinite series of sinewaves in all basic odd harmonics of the square wave frequency. In the directoperating voltage chip capacitors shall not exceed the sum of the application of positive peak AC voltage and the bias voltage in Washington. In an ACapplication of heat generated in the chip capacitors through both the ACcomponent of the signal (this will depend on the signal form, amplitude andfrequency), and by the DC leakage current.
SMD tantalum capacitors maximum ripple voltage but has been proven to be hot tantalum article management a comb, a thermal chip tantalum capacitors very different depending on how it is installed. A piece of equipment will be designed to pass through different amplitude sine square wave current bias capacitor. The temperature rise of the capacitor body, and the infrared sensor. This ensures that no heat loss through any thermocouple surface of the capacitor.
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Actual power dissipation in the capacitor using the following formula: P = I 2 Rand rearranged to I = SQRT (P / R's) ..... (Equation 1) where the RMS rippleurrent, amps R = Equivalent series resistance, ohm U = RMS ripple voltage,volts P = power consumption, watts Z = impedance, ohms, frequency, next consider the maximum AC ripple voltage (UMAX). All of these capacitance measurements on FR4 board, no other heat.
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