
等效電容
By solving the equivalent capacitance of the capacitor, the formulas of effective permittivity are derived.
通過求解電容器的等效電容,進一步導出複合材料有效介電常數的計算公式。
The maximum output short-circuit discharged energy is deduced, and the output equivalent capacitance of switching converters is obtained.
根據開關變換器的最大輸出短路釋放能量,得出了變換器的輸出短路等效電容。
An equation between the equivalent capacitance and the electric potential coefficients of the system of conductors is given and the equation makes the calculation of the equivalent capacitance easier.
導出了導體系任二導體間的等效電容和導體系的電位系數之間的一個關系式,使用此式可方便地計算導體系任二導體間的等效電容。
The circuit model for the armature loop of a d. c. independent exciting-motor is built by the equivalent capacitance approach.
本文用等值電容法建立它激直流電動機電樞回路的電路模型,進而得到航空用三軸電動轉台直流調速系統的結構框圖。
Errors of the equivalent gap caused by the effect of equivalent capacitance and equations of error calculation are described in this article.
本文論述了由于等效電容的影響,引起等效間隙誤差,并推導出誤差計算公式。
The general calculation method of equivalent capacitance of arbitrary passive two-end capacitance has been stu***d.
探讨了任意無源二端電容網絡等效電容的一般計算方法。
Such as the equivalent capacitance of test sample between electrodes, the highest puncture current value, etc.
如被試樣件兩極間的等效電容值,最大擊穿電流值等。
The paper deals with the calculation of equivalent capacitance of three-core electric power cables with fan-type by subarea method.
本文介紹了用子面元法計算三芯統包扇形電力電纜的工作電容。
The equivalent capacitance of inspected apple, one of ***lectric parameters, is used as characteristic for sorting.
選擇等效電容(介電參 數之一)作為蘋果等級分類變量。
Adopting the equivalent capacitance multiplicative circuit, design an internal-compensation network applied in peak-current step-up PWM converter with the compensation principle.
根據補償原則,采用電容等效乘法電路,設計了一種應用于峰值電流升壓型PWM變換器的内部補償網絡。
The result shows, under different vibration mode, equivalent parallel capacitance and resistance are not constant value. There is negative damp effect in transducer system at the operating mode.
結果表明,在換能器不同振動模态下,等效并聯電容電阻并非恒定值,而且實際支承工況下換能器系統工作時存在負阻尼效應。
Factors of trapped charge, parallelresistor of disconnector, equivalent entrance capacitance of power transformer influencing VFTO are analyzed. Some available suppression methods are discussed.
另外還分析了殘留電荷、隔離開關并聯電阻、主變壓器等值入口電容等因素對VFTO的影響,讨論了有效抑制VFTO的措施。
With the method presented by this paper, the equivalent inductance and capacitance of MITL-A of Z accelerator under magnetic insulated stable state are computed.
利用該方法,模拟計算了Z*********的MITL-A在磁絕緣穩态時的等效分布電感和電容。
The electric parameters of double-layer super-capacitor include capacitance and equivalent resistance in series.
雙電荷層電容器的電氣參數主要包括電容和串聯等值電阻。
The experimental results show that equivalent resistance increases while capacitance decreases with the increasing of input RF power.
實驗結果表明,等離子體的等效電阻或電容隨着射頻輸入功率的增加而減小或增加;
Humidity sensing mechanism of IPS was primarily stu***d, and both humidity sensing capacitance model and equivalent circuit of humidity sensing device were established.
探讨了IPS濕敏元件的感濕機理,建立了濕敏電容感濕模型和濕敏元件的等效電路。
This change to achieve a very low equivalent series resistance and higher capacitance under high frequency residues.
這一改變實現了很低的等效串聯電阻和高頻條件下更高的電容殘留量。
Apply the method of equivalent diagrams, analyze and solve the capacitance of the parallel board capacitor when insert ***lectric in it or put shield cover on it.
應用等效圖示的方法,分析求解平行闆電容器插入電介質和加上屏蔽罩後的電容。
After constructing a PEEC(partial equivalent element circuit) with the partial capacitance and inductance matrices extracted, the AC port-parameters of the inductor can then be computed.
通過把計算出的部分電感和部分電容矩陣組裝成一個PEEC(部分元件等效電路)的辦法,能夠進一步算出螺旋電感的交流小信號參數。
The electron beam is equivalent to transmission-line inner conductor. A ceramic capacitance divider is proposed for velocity ratio measurements.
提出将電子束作傳輸線内導體等效,采用陶瓷電容分壓器來測量速度比的方法。
The formulation of the capacitance vs ground of the capacitance proximity fuze can be set up by the equivalent spheroid electrode.
通過理論分析和有限元計算可以看出,電容近炸引信對地電容方程可以用等效球電極的電容方程來建立。
The formula for calculating layer winding capacitance is proposed by ****** the input impedance of the equivalent circuits equated and a method which can simplify the calculation processes is given.
以匝參數為基本單元建立了變壓器繞層的等效電路,利用等效電路入端阻抗相等的性質,推導了繞層等值電容的計算公式,并給出了簡化計算的方法。
POSCAP has a Lowest ESR (Equivalent Series Resistance) level and excellent performance for high frequency though low profile and high capacitance.
“POSCAP”有一個最低的ESR(等效串聯電阻)水平和低調,雖然高電容的高頻性能優良。
For example, a resonator's equivalent circuit elements or a coil's self inductance, lead resistance, and stray capacitance can be easily obtained.
舉例來說,諧振器的等效電路元件或線圈的自感,導緻抵抗力,以及雜散電容,可以很容易獲得。
This paper presents series-capacitance compensation method that can reduce the over-reactance of imitating transformer to meet equivalent reactance in power system imitating experiment.
在電力系統物理模拟試驗中,提出了對模拟變壓器電抗過大的串接電容補償方法,該方法可以降低變壓器的對外等效電抗。
|equivalent capacity;等效電容
等效電容(Equivalent Capacitance)是電路分析中的核心概念,指多個電容器通過特定連接方式組合後,在電路中表現出的單一電容器的電容值。其物理意義在于簡化複雜電路的計算,同時保留原有電容網絡的儲能和充放電特性。
定義與理論基礎
等效電容的計算依據電荷守恒定律和基爾霍夫電壓定律。對于并聯電容器組,總電容值為各電容之和: $$ C_{text{eq}} = C_1 + C_2 + cdots + Cn $$ 對于串聯電容器組,總電容的倒數為各電容倒數之和: $$ frac{1}{C{text{eq}}} = frac{1}{C_1} + frac{1}{C_2} + cdots + frac{1}{C_n} $$ 這一規律源于電荷量在串聯電路中的均等分布特性[來源:麻省理工學院電路與電子學公開課講義]。
工程應用場景
在電力系統濾波電路設計中,工程師常通過并聯多個電容器實現高等效電容值,以增強對高頻噪聲的抑制能力。例如開關電源輸入端的π型濾波器[來源:IEEE電力電子學會技術報告]。
測量與驗證方法
實際測量等效電容時需使用LCR表,并注意頻率參數的選擇。國際标準IEC 60384-1規定了電容器等效參數的标準測試條件,确保不同實驗室數據可比性[來源:國際電工委員會标準文檔庫]。
跨學科延伸
在生物醫學工程領域,細胞膜的雙層磷脂結構可建模為等效電容,其典型值約1 μF/cm²。這一模型為神經電信號傳導研究提供了量化基礎[來源:《生物物理學評論》期刊2022年刊載論文]。
等效電容(Equivalent Capacitance)是指将多個電容器通過串聯或并聯組合後,所表現出的總電容值。在電路分析中,等效電容可以簡化複雜電容器網絡的計算,使其等效為一個單一電容器的效果。
電容(Capacitance)是電容器存儲電荷能力的物理量,定義為電荷量 ( Q ) 與電壓 ( V ) 的比值,公式為: $$ C = frac{Q}{V} $$ 等效電容則是多個電容器組合後的總電容值,其計算方式取決于電容器的連接方式。
當電容器串聯時,所有電容器存儲的電荷量相同,但電壓分配不同。等效電容 ( C{text{eq}} ) 的倒數等于各電容倒數之和: $$ frac{1}{C{text{eq}}} = frac{1}{C_1} + frac{1}{C_2} + cdots + frac{1}{Cn} $$ 例如,兩個 2μF 的電容器串聯時,等效電容為: $$ C{text{eq}} = frac{2 times 2}{2 + 2} = 1 , mutext{F} $$
當電容器并聯時,所有電容器的電壓相同,但總電荷量為各電容器電荷量之和。等效電容 ( C{text{eq}} ) 等于各電容之和: $$ C{text{eq}} = C_1 + C_2 + cdots + Cn $$ 例如,兩個 3μF 的電容器并聯時,等效電容為: $$ C{text{eq}} = 3 + 3 = 6 , mutext{F} $$
等效電容常用于簡化電路分析,例如:
若電容器以混合方式連接(如既有串聯又有并聯),需分步計算:
例如,若電路中 ( C_1 ) 與 ( C_2 ) 并聯,再與 ( C3 ) 串聯,則等效電容為: $$ C{text{eq}} = frac{(C_1 + C_2) cdot C_3}{(C_1 + C_2) + C_3} $$
等效電容的概念是電路分析的核心工具,可顯著降低複雜網絡的計算難度。
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