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Op Amp Comparator


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Everyone

Comparator Behaviour

Inverting and Non-Inverting Inputs

Op Amp Comparator 1.gif

Simple Comparator Example - Practical Task

Use this as a Practice Task for Writing Up Your Project

This is an example of the kind of work that should go into a top grade project. This has only one active device. You project will need at least three.

Specification

Turn on the LEDs when it gets dark.

How it Works

Circuit and Layout Diagram

Op Amp Comparator 2.gif Op Amp Comparator 4.jpg

Additional Task for Quick Workers

Comparator Driving a MOSFET

Simulation

For the Falstad Circuit Simulation, CTRL+Click Comparator
In options, check European Resistors and uncheck Conventional Current.
Use the slider to simulate changes in light level.

Alternatively view Op_Amp_Comparator.txt.
Save or copy the text on the web page. Import the saved or copied text into the Falstad simulator.

Here is the new HTML5 Simulator Site.

Falstad-Comparator.gif

 

 

 

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