An operational amplifier is a DC-coupled high-gain electronic voltage amplifier amplifier that has high gain, differential input, high input resistance, and low output resistance.
Electronics tutorial
Here are the basic electronics tutorial circuits for beginners. You can find here tutorials on operational amplifiers (opamp), transistor, MOSFETs, 555 timer IC, audio amplifiers and many more.
Automatic Battery Charger circuit using LM358 OP-AMP
This Automatic battery charger circuit cuts-off power supply when the battery gets fully charged. This circuit can charge any battery like Li-Po, Lead Acid, or Ni-Cd if you set it properly. Everyone needs a Battery Charger with a Battery. It charges the Lead Acid Battery up to 50Ah. You can set the battery cutoff threshold by setting […]
How to Make Water Level Indicator using BC547 Transistor
Learn how to make a very simple water level indicator using transistor bc547 at home in a few simple steps as follow… before starting you should have a basic knowledge of how a transistor works. watch this video for a better understanding. Basic principles: Transistor is a device which is used for amplification or switching […]
CD4047 Inverter, 100 watt Power, Also why its not good?
In this project, we will make CD4047 Inverter, and also we will discuss why they are not a good solution. An inverter is a device that converts DC voltage to AC. They are very important for power backup in a remote location like villages where there is a frequent power cut off problem also in […]
PWM controller for DC Motor using 555 timer IC
Pulse Width Modulation PWM controller. PWM is a technique in which the amount of current going in a circuit can be controlled by chopping the Direct current using a gate or transistor that is changing its duty cycle (on-off time) you should see this article flashing of LED using 555 IC. This article is about […]
How does metal detector works? fully explained
Introduction: A metal detector is a device that can detect metal which may not be seen directly. The simplest kind of metal detector can be made using an oscillator, two inductor coils, and a detector or indicator. Here we will talk about how does metal detector works its construction applications and the importance of metal […]