A simple infrared thermopile sensor circuit diagram is shown underneath. The op amp must be a excellent low-noise unit. We usually make use of the LTC1050 for such purposes, however […]
Simple LED Stopwatch Using IC 555 and IC 4017
In this post we are going to construct a simple LED stopwatch using IC 555 timer and IC 4017 decade counter. The elapsed time is indicated by LEDs which illuminates […]
Simple Variable Power Supply Circuit for Benchwork
In case you assess the cost and the rating of this simple variable bench power supply you may receive a big surprise, as the output voltage and current tend to […]
Simple Electric Fencing Circuit
In this post we are going to make a simple electric fencing circuit which can protect your private property from animals and intruders and prevent them from gaining access. Note: […]
Simple 12V DC Fan Speed Controller Using IC 555
In this post we are going to construct a circuit to control the speed of 12V DC fan which is commercially available to run on 12V Solar panels and Batteries. […]
Simple Dual Power Supply Circuit Without Center Tap
The article explains how to make a simple dual power supply circuit without using a center tap transformer rather any ordinary two wire transformer. This circuit is of interest not […]