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Gel Cell Battery Charger Circuit [Constant Current, Constant Voltage]

Last Updated on November 22, 2023 by Swagatam 42 Comments

Fig 1

In this post I have explained what are gel cell batteries and also learn how to build a specialized charger for charging a gel cell battery, with full calculations. The proposed circuit works in two modes: it starts charging a discharged gel cell battery with constant current, until the full charge voltage is reached across […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Cell, Charger, Constant, Current, Voltage

Simple E-Bike Circuit [Electric Bike]

Last Updated on March 2, 2022 by Swagatam 23 Comments

thumb press accelerator

This E-bike or electric bike circuit I have explained below can be used as the control circuit for constructing a homemade E-bike, with the help of a permanent magnet motor DC (PMDC motor), and a Li-Ion battery. An electric bike is basically a bicycle powered through a motor and a battery, which does not require […]

Filed Under: Automobile Electronics Tagged With: Bike, Electric, Simple

Types of Power Amplifier Classes Explained in Simple Words

Last Updated on November 25, 2023 by Swagatam 6 Comments

class A amplifier

In this post I am going to explain power amplifiers and their classification according to their output electrical characters and application. We will be exploring amplifier classes: A, B, AB, C, D, E, F, G, H, I, S and T briefly and yes, that’s a lot of amplifier types that are available in today’s electrical […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Classes, Explained, Power, Simple, Types

Field Strength Meter Circuit

Last Updated on September 17, 2023 by Swagatam 10 Comments

field strength meter circuit

A field strength meter is an electronic device which is used for detecting and measuring the RF radiation generated from any RF transmitter circuit. As we all know that transmitter circuits invariably use an inductor/capacitor based LC resonating circuit, also called the tank circuit, which oscillates at a specified resonating frequency to transmit the frequency […]

Filed Under: Sensors and Detectors Tagged With: Field, Meter, Strength

Inductor Working and Designing, with Formulas

Last Updated on December 16, 2021 by Swagatam 8 Comments

inductor image

In this post I have explained all the basics of inductors, its working principle, and how to design inductors with the help of formulas and calculations. Inductors are vastly used from mobile, laptop chargers to high-end communication equipment like mobile base stations to the satellites orbiting the earth. Let us take a deep dive into […]

Filed Under: Electronics Theory Tagged With: Designing, Formulas, Inductor, Working

Types of Batteries Explained [NiCd, NiMH, Lead Acid, Li-Ion]

Last Updated on March 28, 2022 by Swagatam Leave a Comment

NiCd battery compressed

In this post I have explained the main types of batteries that are widely used in today’s world for almost all important applications, ranging from cars, automobiles mobile phones, airplanes, industries, satellites to name a few. The Nickel Cadmium (NiCd) Battery Fundamentally, the NiCd battery adopts fast charging as opposed to slow charging and employs […]

Filed Under: Battery Charger Circuits Tagged With: Batteries, Explained, Lead, NiCd, NiMH, Types

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