Here are the basic electronics tutorial circuits for beginners. You can find here tutorials on operational amplifiers (opamp), transistor, MOSFETs, 555 timer IC, audio amplifiers and many more.

LC Filters
Capacitors Electronics tutorial Filter Circuits Inductors Passive components

LC Filters: Circuit Diagram, Working, Types, and Applications

LC filters are widely used frequency-selective circuits in electronics that utilize an inductor (L) and a capacitor (C) to allow certain frequency components to pass while blocking others. Unlike RC filters, LC filters rely on the interaction between inductive reactance and capacitive reactance, making them highly effective in radio frequency (RF), power electronics, and communication […]

Inductive and Capacitive Reactance
Capacitors Electronics tutorial Filter Circuits Inductors Passive components

Inductive Reactance and Capacitive Reactance Explained

Understanding inductive reactance (XL) and capacitive reactance (XC) is essential for analyzing AC circuits, designing filters, oscillators, power electronics systems, and communication circuits. This article explains all fundamental concepts including resistance, reactance, impedance, frequency response, graphs, ideal and real component behavior, solved examples, advantages, disadvantages, and applications. In electronic circuits, especially those operating with alternating […]

RL Filter Circuit
Electronics tutorial Filter Circuits Inductors Passive components Resistors

RL Filters: Circuit Diagram, Working, Types, and Applications

RL Filter Circuit is a fundamental passive filtering circuits that use a resistor (R) and an inductor (L) to control signal frequency. Like RC filters, RL filters are first-order filters, but instead of capacitive reactance, they rely on inductive reactance, which increases with frequency. Because of their simple structure and predictable frequency behavior, RL filters […]

How to Build Custom Drone Controller
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How to Build a Reliable Custom Drone Controller on a Budget

Assembling your own drone controller is more of a project that should be in a well-equipped robotics laboratory, not on your kitchen table. But here’s the thing, it’s more achievable than most people think, even if you’re working with a modest budget and learning as you go. Thousands of hobbyists, makers have done exactly this, […]

MOS Capacitor
Active components Electronics tutorial MOSFET Transistors

MOS Capacitor and MOS Capacitance CV Curves Explained

The MOS Capacitor (Metal Oxide Semiconductor Capacitor) is the fundamental electrostatic structure underlying modern semiconductor devices. Every MOSFET, CMOS integrated circuit, DRAM cell, Flash memory array, and nanoscale logic transistor originates from MOS capacitor physics. Understanding MOS capacitor behavior, electrostatics, energy band behavior, and Capacitance Voltage (CV) characteristics is essential for: Semiconductor device physics VLSI […]

12V 5A SMPS Circuit
Circuit Designing DC Power Supply Electronics project PCB Designing Power Electronics SMPS

12V 5A SMPS: Switched Mode Power Supply Circuit Diagram IC TOP227YN

In this article, you will learn how to design a 12V 5A SMPS circuit that converts 230VAC to regulated 12V DC using the TOP227YN in a flyback configuration. Switched Mode Power Supplies (SMPS) are widely used for high-efficiency AC-to-DC conversion. The flyback topology is especially suitable for low- to medium-power isolated supplies. The TOP227YN is […]