# Educational-Systems (Page 3)

## Play-Hookey – Online Classroom

This Website is intended for those intrepid individuals who, for whatever reason, find themselves looking for a less than formal approach to useful education in a number of technical fields.

Play-Hookey – Online Classroom

Digital logic is at the core of all digital computers, and yet it is entirely based on three fundamental operations, designated AND, OR, and NOT. See how it’s possible in these pages…..
These pages now include coverage of the major logic families as well as some practical experiments that you can perform with real components to see for yourself how they work.

• DC Electronic Theory.
• AC Electronic Theory.
• Op Amps and Analog Circuits.
• Take a look at optics.
• What’s inside these semiconductors?

Line Clock – Play-Hookey

“In many digital circuits, we need a regular and continuous train of pulses to control the timing of various circuits. In some cases, we want two separate pulse trains, one the inverse of the other. In other cases, we may want two square wave pulse trains in quadrature….”

(An Excellent Interactive Resource, Technically Accurate, Electronics Edutainment – delabs)

## MERLOT Educational Resource

Multimedia Educational Resource for Learning and Online Teaching.

MERLOT – Educational Resource

MERLOT is a leading edge, user-centered, searchable collection of peer reviewed , higher education, online learning materials created by registered members, and a set of faculty development support services.

Share advice and expertise about education with expert colleagues. Be recognized for your contributions to quality education.

## Analog Op-Amp Tutors with Gadgets

I have made some Web Widgets, these are analog opamp tutors. Interactive Tutorial with Simulated Meters and Potentiometers, demonstrating how Operational Amplifier functions in different configurations.

Interactive Tutorials using Virtual Electronic Components

Slide the Potentiometers just like you would operate a Sliding Control. Drag the Knob on Pot to increase or decrease the resistance. The Resistance is shown is blue letters and dynamically alters value as you slide the pot.

The mV Source is varied by just moving mouse pointer over the two buttons, no clicking. This reduces finger strain and also you have a long lasting mouse. The mV buttons are special, the variation picks up speed if you let the mouse pointer remain on the button. This is Ramp-up and Ramp-down. This enables you to set it faster with just two buttons.

Finally you have a DVM a Digital Volt Meter that just Displays the Voltage at any Point, this readout value has to be noted down.

Analog Electronics Tutorials

If you wish to examine the code – Analog Tutorials Project Page.

## Basics and Instrumentation Electronics

The Basic Tutorials Section has been updated, “Basics” in an Instrumentation Viewpoint. Some Learning i had written down, Later made a Newsletter Amps-n-Volts. Now i am organizing everything into one area. More like Content Management by chewing the cud.

Digital Multi Meter – New Year Resolutions

1. I will not drop the DMM from a height of 4 feet.
2. I will not Test Live Powered equipment in the Ohms Mode.
3. I shall not Measure Mains Voltage in The Current Mode.
4. I shall get it calibrated once a year or at least once a decade.
5. I shall not use it in High Energy Measurements.
6. I will try my best not to give it to my best friend.
7. I can remember Red is Positive and Black is negative.
8. I will wear shoes and stand on a block of wood while i test.
9. I shall not operate the rotary range switch at high speeds.
10. I shall replace the probes-cables-connectors on wear-tear.
11. I shall not accidentally keep the hot-iron near the DMM or leads.
12. I shall not keep DMM on tall table and pull it with the leads.

DMM – How it Looks … shown right is from Fluke Electronics
How To Learn Electronics :

Theory must be studied once and referred to, again and again as you do practicals. One is by building DIY projects and then modifying them. Also Repair of equipment, troubleshooting, testing and calibrating. Then you know how components behave and real life limitations. Now design and engineer a product and test it at customer site. do a pilot production and test with more clients. Now you will learn to think based on practical applications.
Guide

“with hard work and innovation you can do it ! “

## Digital Electronics Interactive Tutors

These Digital Tutors are interactive and started with very basic JavaScript and CSS. You can operate the controls and see the Truth Table and Results in LED Displays. Controls include DIP Switches and Push Buttons.

Tutorials on Digital Electronics

In Electronics Theory Section

Here is a Snapshot of a Live iGoogle Page showing a Digital Preset counter Gadget in Canvas view.
Other Gadgets are Logic Gates Tutor and Digital Timer

## Interactive Examples and Exercises – Jim Svoboda

James A. Svoboda – ECE Department, Clarkson University has created numerous interactive examples throughout the textbook – Introduction to Electric Circuits. Interactive Examples made of Java Applets.

Interactive Examples and Exercises – Jim Svoboda

The Interactive Exercise shown here considers a similar, but different, circuit. Like the Interactive Example, the Interactive Exercise poses a problem, then accepts and checks the user’s answer. Student learning is further supported by extensive help, in the form of worked example problems, available from within the Interactive Exercise using the “Worked Example” button.

Circuit Design Lab

The Circuit Design Lab consists of several Java applets, each providing an opportunity to experiment with the design of a particular circuit:

Variations of this problem are obtained using the “New Problem” button. We can peek at the answer using the “Show Answer” button. The Interactive Example and Exercises provide hundreds of addition practice problems with coun
tless variations, all with answers that are checked immediately by the computer.

## Electronic Educational Applets – Paul Falstad

“These are some educational java applets I wrote to help visualize various concepts in math, physics, and engineering.” – Paul Falstad

Electronic Educational Applets – Paul Falstad

• Math and Physics Applets – MyPhysicsLab – Physics Simulation with Java.
• Index of Circuit Examples – Demonstrates various electronic circuits.
• Digital Filters – Filters digital signals and plays the output on your speakers.
• Acoustic Interference Applet – Audio interference between your speakers.
• Waveguide Modes Applet – Electromagnetic waves in a waveguide.
• Antenna Applet – Generates antenna radiation patterns.

Analog Circuit Simulator Applet – Demonstrates various electronic circuits.

“This java applet is an electronic circuit simulator. When the applet starts up you will see an animated schematic of a simple LRC circuit. The green color indicates positive voltage. The gray color indicates ground. A red color indicates negative voltage. The moving yellow dots indicate current.”

Derivative Works

iCircuit is the easy to use electronic circuit simulator and designer – the perfect tool for students, hobbyists, and engineers.

Its advanced simulation engine can handle both analog and digital circuits and features realtime always-on analysis. It is the perfect companion to students, hobbyists, and engineers.

Learn + Make + Teach Electronics at EveryCircuit

Build any circuit, tap play button, and watch dynamic voltage, current, and charge animations. This gives you insight into circuit operation like no equation does. While simulation is running, adjust circuit parameters with analog knob, and the circuit responds to your actions in real time.