741

The operational amplifier or op amp is an electronic device or element, that behaves like a voltage controlled voltage source. ... Most commonly available and used op amp IC is IC 741. The IC 741 is a small chip. It comprises eight pins. 2, 3 and 6 numbered pins are most significant.

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LDR Based Light Sensor/Detector

“Light sensors and detectors are extremely useful for microcontrollers and embedded systems and intensity monitoring is also to be done. One of the simplest and cheapest of such sensors are LDR. LDR or Light Dependent Resistors can be easily used …

Learn 741 op-amp circuits basic with example

“We often see the LM741 circuit in many projects. Sure, You can do them. But… Will it is more fun if you understand how it works? Do not worry at all. I always try to work it easy for you …

200Watts 12V to 220V DC-DC Converter

“Welcome to this instructable where I will show you how I made this 12volts to 220volts DC-DC converter with feedback to stabilize output voltage and low battery/ under-voltage protection, without using any microcontroller. Even though the output is high …

PIC Based LF and Avoiding Robot

“Introduction In this instructable you will learn to make a light following and avoiding robot. My inspiration comes from robots imitating common human behavior, for example you will not just walk into a wall for no reason. Your brain communicates …

Noise Cancelling W/ 741 Inverting OP-AMP

“This project is called the NC741 because Noise Cancelling with 741. Also NC741 sounds cool. The purpose of this build is to show that Noise Cancellation is possible with basic parts like OP-Amp. And that application of fundamental physics …

AC Current monitoring data logger

“Hi Everyone, welcome to my first instructable! By day I am a test engineer for a company that supplies industrial heating equipment, by night I am an avid technology hobbyist and DIY’er. Part of my work involves testing the …

Understanding silicon circuits: inside the ubiquitous 741 op amp

“The 741 op amp is one of the most famous and popular ICs[1] with hundreds of millions sold since its invention in 1968 by famous IC designer Dave Fullagar. In this article, I look at the silicon die for …