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High Frequency PWM Electric Arc Metal Engraver Circuit

Last Updated on September 22, 2026 by Swagatam Leave a Comment

Today I am showing you how to make very powerful pen style electric arc metal engraver circuit using IC 555 and MOSFET. Actually this idea is inspired by one of my blog reader, and my friend Mr. August. He made one crude engraver using 6V transformer and tractor charging coil, but he wanted a smooth […]

Filed Under: Oscillator Circuits Tagged With: Electric, Engraver, Frequency, High, Metal, PWM

Simple E-Bike Circuit [Electric Bike]

Last Updated on May 16, 2026 by Swagatam 25 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

Electric Wheelchair using BLDC Motor

Last Updated on June 30, 2026 by Swagatam 16 Comments

basic BLDC motor

In this post I have explained how to make a simple electric wheelchair circuit using a standard BLDC motor driver circuit, and a couple of high power BLDC motors. Introduction The introduction of electric wheelchair was like a boon to our many differently-abled friends who now find it much easier to move and travel around, […]

Filed Under: Motor Controller Tagged With: BLDC, Electric, Motor, Wheelchair

Automatic Torque Optimizer Circuit in Electric Motors

Last Updated on June 30, 2026 by Swagatam 22 Comments

In this article I have explained a circuit design which will help to optimize the torque of an induction motor used in electric vehicles, by analyzing its current consumption. Using a IC 555 Inverter for Toque Control The design is specifically intended for electric vehicles which are designed to work with induction motors, and therefore here […]

Filed Under: Motor Controller Tagged With: Automatic, Electric, Motors, Optimizer, Torque

Designing a Powerful 48V 3KW Electric Vehicle

Last Updated on March 26, 2022 by Swagatam 15 Comments

DRV8307

In this post I have explained a few important parameters related to the making of  a 48V 3KW electric vehicle using solar panel, including a full fledged circuit diagram for the same. The idea was requested by Mr. Sreejith. Circuit Objectives and Requirements I am Sreejith Rajan a b.tech student doing a project on electric […]

Filed Under: Solar Controller Circuits Tagged With: 3KW, 48V, Designing, Electric, Powerful, Vehicle

Electric Match (Ematch) Circuit Firework Ignitor

Last Updated on June 8, 2026 by Swagatam 2 Comments

ignition 1

In this post I will comprehensively explain a simple electric match igniter circuit which can be used for implementing a foolproof ignition of a series of Ematches through a microcontroller based control system. The idea was requested and explained by Mr. Jerry Shallis The details may be understood by reading the following email discussion between […]

Filed Under: Lamps and Lights Tagged With: Electric, Ematch, Firework, Ignitor, Match

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