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Capacitive Impedance | Circuit Theory

Capacitive impedance is the ratio of phasor voltage to phasor current in a capacitor. It also means the opposition of a capacitor to an alternating current. Impedance of a capacitor is dependent on the frequency of the voltage or current across it.

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Light Dimmer Circuit with Arduino

Arduino light dimmer circuit

Light dimmer circuit projects are a good way to learn about thyristors. Thyristors, which include TRIAC, SCR, and Shockley diodes, are four-layer semiconductors that find many applications in AC power control. This post will show you how to create a light dimmer circuit with a TRIAC. As an additional feature,  …

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Analog to Digital Conversion Calculator

voltage divider application example

Analog to Digital Conversion Overview Microcontrollers are essentially computers. And like computers, they only understand two numbers: a 1 and a 0. So when a microcontoller needs to read a quantity with varying numbers in a period of time (a.k.a. analog), an analog-to-digital conversion is necessary. An ADC (analog-to-digital) converter …

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Voltage Divider Calculator

voltage divider circuit

Introduction to Voltage Dividers Resistors are in series when the same current flows through them. Consequently, by Ohm’s Law, the total voltage in a circuit of series resistors is the sum of the individual drops on the resistors. Another way of saying this is that each resistor contributes to the …

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Mesh Analysis for AC Circuits

Mesh Analysis for AC

Similar to Nodal Analysis, Mesh Analysis for both DC and AC circuits are similar. The only difference is that in AC, we are dealing with impedances instead of just resistors. The aim of this tutorial is to make Mesh Analysis for AC circuits simpler for you.

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