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Bicycle LED Light Circuit Using a Single 1.5V Cell

Last Updated on May 16, 2026 by Swagatam 10 Comments

bicycleLEDturnlightcircuit

The proposed bike flasher flashes two white LEDs from a single 1.5V cell by using a solitary general purpose transistor, and does not need core for the involved transformer, the main core being the Air itself. Using Joule Thief Concept Every Joule Thief circuit uses ferrite rod or toroid core and its turns are wounded […]

Filed Under: Automobile Electronics Tagged With: Bicycle, Cell, LED, Light, Single

Single Mosfet Timer Circuit

Last Updated on April 3, 2021 by Swagatam 73 Comments

mosfetasdelaytimercircuit

The following article discusses the use of a mosfet as a switch for toggling high current loads efficiently. The circuit can be also transformed into a delay OFF circuit with simple modifications. The design was requested by Mr.Roderel Masibay. Comparing Mosfet with BJT A field effect transistor or mosfet can be compared with a bjt […]

Filed Under: Timer and Delay Relay Tagged With: MOSFET, Single, Timer

Operating a DC Motor Clockwise/Anticlockwise with a Single Switch

Last Updated on June 30, 2026 by Swagatam 24 Comments

motorclockwiseanticlockwisecircuitwithoneswitch

The following post discusses the wiring connections for driving a DC motor in clockwise and anticlockwise directions with the help of a single toggle switch and a relay circuit. The idea was requested by one the interested followers of this blog. I have explained more: Technical Specifications We have our project in school. Our professor […]

Filed Under: Motor Controller Tagged With: Anticlockwise, Clockwise, DC, Motor, Operating, Single

Single Transformer Inverter/Charger Circuit

Last Updated on May 17, 2026 by Swagatam 243 Comments

singletransformerinverterchargerchangeovercircuit

In this post I have explained how to build an innovative inverter circuit with a single transformer that works both as an inverter and a battery charger transformer, I have explained the details from the following discussion. The Circuit Objective Though you may find many inverters having an integral battery charger, the section will mostly […]

Filed Under: Battery Charger Circuits Tagged With: Charger, Inverter, Single, Transformer

Single Phase Preventor Circuit

Last Updated on May 21, 2026 by Swagatam 6 Comments

simplesinglephasingpreventercircuit

In this post I have explained a couple simple circuits which when installed will prevent single phase occurrence in a 3 phase system. Introduction We all know that for operating heavy electrical loads three phase power or AC is required in order to make the functioning efficient and viable. However this necessitates the presence of all the three phases […]

Filed Under: Grid and 3-Phase Tagged With: Phase, Preventor, Single

Easiest Single Axis Solar Tracker System

Last Updated on January 14, 2023 by Swagatam 8 Comments

algorithmbasedsolartrackermechanismcircuit

In this post I have explained how to make a very easy solar tracker circuit using a predetermined algorithm through a 555 IC timer circuit. Introduction In this site I have already published a solar tracker system circuit which is intended for automatically adjusting the solar panel face such that it stays perpendicular to the incident sun rays at […]

Filed Under: Solar Controller Circuits Tagged With: Axis, Easiest, Single, Solar, System, Tracker

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