The circuit identifies and detects the temperature difference between two sensors and activates a relay when the temperature is not identical on these differently positioned sensors. By: Manisha Patel It’ll also enable you to detect a difference in temperature, although the temperature sensing devices can be set are discretely, using a potentiometer. Operational Details To […]
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Convert your Computer UPS to Home UPS
This article explains an interesting topic, how to convert your computer UPS into home UPS. If you own a desktop computer, you may have a UPS that can power your computer for 10-15 minutes after power failure. Using an UPS The purpose of the UPS is to save your work and shutdown your computer properly […]
Sequential Timer Circuit using Transistors
In this post I have explained to make a simple sequential timer generator circuit which can be used for getting a sequential triggering of a connected load, or can be simply used like a sequential LED bar graph effect generator, using only transistors. The idea was requested by Mr Babusan. Technical Specifications Is it possible […]
Very Low Frequency (VLF) Detector Circuit
Low frequencies predominantly cover our earth’s atmosphere. This range of frequency may be created by many different sources which may be quite unknown and strange. A VLF sensor equipment can be made to trace these frequencies for investigating the intriguing secrets hidden behind it. Mr. Steven Chiverton investigates. VLF Receiver for Sensing Lightening and other […]
Energy Saving Automatic LED Light Controller Circuit
In this post I have explained an interesting energy saving lighting circuit design which switches ON only when it is logically required thus helps to save electricity, and also increases the working life of the whole system. Technical Specifications Hello Swagatam, Thanks for response, the details which you asked are as such , 1. solar […]
Super Capacitor Hand Cranked Charger Circuit
In this post I have explained a simple super capacitor hand cranked charger circuit using bridge rectifier which may be applied for charging a bank of super capacitors through any suitable hand cranked generator machine. The idea was requested by Mrs. Janet Prevent Reverse Discharge in Super Capacitors For a DIY project I bought a […]





