Capacitance Bridge Working Principle

AC bridges are used for measurement of inductances and capacitances. All AC bridge circuits are based on Wheatstone bridge. Figure 1(a) shows the circuit of a simple capacitance bridge. Cs is a precise standard capacitor, Cx is an unknown capacitance, and Q and P are standard resistors, one or both …

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Single Phase Voltage Calculation | Matlab

Here, we will find phase voltages VAN, VBN, and VCN, shown in the following figure, using Matlab. By applying KVL, we come up with the following three equations: $\begin{matrix}   110\angle {{0}^{o}}=(1+j1){{I}_{1}}+(5+j12){{I}_{1}} & \cdots  & (1)  \\   110\angle -{{120}^{o}}=(1-j2){{I}_{2}}+(3+j4){{I}_{2}} & \cdots  & (2)  \\   110\angle {{120}^{o}}=(1-j0.5){{I}_{3}}+(5-j12){{I}_{3}} & \cdots  & (3)  \\\end{matrix}$ …

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Time Constant of RC Circuit | Matlab

In this tutorial, we will draw capacitor voltage for different time constants and analyze how it affects the charging time. Let’s assume we have a capacitor of $10\mu F$ capacitance and want to draw voltage across capacitor if: $\begin{align}  & (a)R=1k\Omega  \\ & (b)R=10k\Omega  \\ & (c)R=0.11k\Omega  \\\end{align}$ We will use the …

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Inverse Laplace Transform of a Transfer Function Using Matlab

In this topic, we will find out how to calculate inverse Laplace of a transfer function using Matlab. Let’s find out Inverse Laplace of the following function \[X(s)\frac{10{{s}^{2}}+20s+40}{{{s}^{3}}+12{{s}^{2}}+47s+60}=\frac{Numerator}{Denumerator}\] Let’s write a little code in Matlab now: Results: Here, we get the following results: Residue =    95.0000  -120.0000    35.0000 …

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Fourier series of a Square Wave using Matlab

In this tutorial, we will write Fourier series of a simple function using Matlab. Let’s assume we have a square wave with following characteristics: $\begin{align}  & Period=2ms \\ & Peak-to-Peak\text{ }Value=2\text{ }V \\ & Average\text{ }Value=0\text{ }V \\\end{align}$ So, we can express it as: \[\begin{align}  & x(t)=\frac{4}{\pi }\sum\limits_{n=1}^{\infty }{\frac{1}{(2n-1)}\sin \left[ (2n-1)2\pi {{f}_{o}}t …

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Diode Characteristic Curve Calculation at Different Temperatures using Matlab

In this article, we will draw characteristic curves of a diode at different temperatures. From the following equation, it is evident that the thermal voltage and the reverse saturation current of a diode depend on the temperature. $i={{I}_{s}}\left[ {{e}^{\left( {}^{v}/{}_{n{{V}_{T}}} \right)}}-1 \right]\text{          }\cdots \text{      (1)}$ IS is reverse saturation current …

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Ladder Diagram | Schematic Diagram | Wiring Diagram

Ladder Diagram

Wiring Diagram Definition Wiring diagrams tend to show a close representation of the interior position of electrical components in a control cabinet and/or circuit. Sometimes wire diagrams can closely represent a picture. The only difference is components are represented by electrical symbols whether they are NEMA standard or IEC standard …

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Electrical Symbols | Electrical Drawing Symbols

A symbol is a simple graphical representation of some type of component, device, and load that can be drawn easily on a two-dimensional scale. On electrical or electronic diagrams, symbols are used to represent electrical components. Electrical symbols used in industry today are what engineers use to identify parts of …

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Node Voltages Calculation in Resistive Circuit using Matlab

Determine the voltage at each node of the circuit: FROM ABOVE CIRCUIT, we can write the following set of equations: $\begin{matrix}   \begin{align}  & {{I}_{{{R}_{4}}}}={{I}_{{{R}_{1}}}}+{{I}_{{{R}_{3}}}} \\ & {{I}_{{{R}_{2}}}}={{I}_{{{R}_{3}}}} \\ & {{V}_{1}}={{V}_{A}} \\\end{align} & \cdots  & (1)  \\\end{matrix}$ Or \[\begin{matrix}   \begin{align}  & \frac{{{V}_{C}}}{{{R}_{4}}}=\frac{{{V}_{1}}-{{V}_{C}}}{{{R}_{1}}}+\frac{{{V}_{B}}-{{V}_{C}}}{{{R}_{3}}} \\ & \frac{{{V}_{1}}-{{V}_{B}}}{{{R}_{2}}}=\frac{{{V}_{B}}-{{V}_{C}}}{{{R}_{3}}} \\\end{align} & \cdots  & (2)  \\\end{matrix}\] We can rewrite …

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Series RL Circuit Analysis using Matlab

Determine the voltage across the inductor in series RL circuit : Let us compute the voltage across the capacitor for t≥0 using the following expression: ${{v}_{L}}(t)={{V}_{s}}{{e}^{-t/\tau }}u(t)$ Whereas the source voltage is 1V and time constant τ=L/R. You May Also Read: Series RL Circuit Analysis Theory It’s time to write …

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