Circuit Fantasia

I started this interactive site in 2002. I created most of pages by means of Macromedia Flash (now Adobe). Unfortunately, in 2021, Adobe stopped Flash Player. However, there was still a way to watch Flash movies - Ruffle Flash emulator.

How to Understand, Present and Invent Electronic Circuits

At the end of 2025, I closed the site after archiving and uploading it to the Internet Archive. This is the homepage created with Flash. Since not all links in it work, you can use the list of links below to navigate between the pages.


Here are the links of the home page accompanied with a brief description.

Philosophy
Creation shows how I created my philosophy
Examples of inventing tells how I revealed the secret of op-amp inverting circuits in four steps
My creative evolution is an initial version of my bio (see the present full version) 
Penetrations shows my great circuit insights
Papers is a list of my materials published until 2000

        
Tutorials Flash
Build to understand circuits (uncompleted)
Introduction reveals the philosophy of this novel approach in electronics education


Table of contents Part 1. In the kingdom of electricity (passive circuits)
Unit 1-1 (Voltage causes current) introduces the first most elementary building blocks


Op-amp interactive builder "builds" over 40 op-amp inverting circuits with negative feedback


Strange Things can be Put in the Feedback Loop (after Tom Hayes's Student Manual) builds over a dozen op-amp circuits with a disturbance put into the feedback loop

        
Collections
V-to-I converter builds a passive voltage-to-current converter

         
I-to-V converter creates an opposite current-to-voltage converter


Passive summer builds a compound passive resistive summer


Active summer transmutes a passive summer into an active one


Circuit Questions & Answers
Great questions contains general questions about circuits
All questions contains "ordinary" questions about circuits

Paradoxes of circuits is another part of the site started in September 2003 where I show the great paradoxes and absurds in electronic circuits

Contradictions

Circuit Conflicts

Principles

Building schemes

My students (2004)




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