NTNUJAVA Virtual Physics Laboratory
Enjoy the fun of physics with simulations!
Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/
February 20, 2020, 04:29:09 am *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
 
   Home   Help Search Login Register  
Give me a standpoint and I will move the earth. ...Archimedes (287-212BC)
Google Bookmarks Yahoo My Web MSN Live Netscape Del.icio.us FURL Stumble Upon Delirious Ask FaceBook

NTNUJAVA Virtual Physics Laboratory
Enjoy the fun of physics with simulations!
Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/ > Information about this web site > Request for physics Simulations > operational amplifier simulation
Pages: [1]   Go Down
« previous next »
  Print  
Author Topic: operational amplifier simulation  (Read 18753 times)
0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
alfalion
Newbie
*
Offline Offline

Posts: 2
«
Embed this message
on: February 24, 2011, 12:03:00 am » posted from:Baia Mare,Maramures,Romania
Hi there. I'm new to this forum. I like electronics very much and i was wondering if a simulation of operational amplifiers can be made. Something like changing the input voltage or some resistor and see what you get at the output using EJS.
Some of the most important opamp categories can be found here
So is it possible?
Thank you.
Logged
Fu-Kwun Hwang
Administrator
Hero Member
*****
Offline Offline

Posts: 3085



WWW
«
Embed this message
Reply #1 on: February 24, 2011, 11:31:28 pm » posted from:Taipei,T\'ai-pei,Taiwan
I hope the following simulation is what you need!
You can use sliders to change R1,R2, Vin.
Click invert to find the circuit type similar to your case!

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
  • Please feel free to post your ideas about how to use the simulation for better teaching and learning.
  • Post questions to be asked to help students to think, to explore.
  • Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!

* ejs_operationalAmplifier.jpg (18.1 KB, 673x392 - viewed 686 times.)
Logged
alfalion
Newbie
*
Offline Offline

Posts: 2
«
Embed this message
Reply #2 on: February 25, 2011, 05:00:24 pm » posted from:Baia Mare,Maramures,Romania
Yes, this is what i was wondering about. Thanx.
Logged
Tminus
Newbie
*
Offline Offline

Posts: 1
«
Embed this message
Reply #3 on: June 08, 2011, 04:52:02 pm » posted from:Satu Mare,Satu Mare,Romania
Hello Mr. Fu-Kwun Hwang, can you explain or comment the variables (what they do) used for this simulation? I want to better understand this simulation. Thankyou very much.
Logged
Fu-Kwun Hwang
Administrator
Hero Member
*****
Offline Offline

Posts: 3085



WWW
«
Embed this message
Reply #4 on: June 08, 2011, 05:52:58 pm » posted from:Taipei,T'ai-pei,Taiwan
The key point is: the same current flow through both resistors R_1,R_2.

For non-invert case:
 V_{out}=I\,(R_1+R_2), \qquad V_{in}=I\, R_1
so V_{out}=\frac{R_1+R_2}{R_1} V_{in}=(1+\frac{R_2}{R_1}) V_{in}


For invert case:

 V_{out}= -I\, R_2, \qquad V_{in}=I\, R_1
so V_{out}=-\frac{R_2}{R_1}\, V_{in}
Logged
srisak31
Newbie
*
Offline Offline

Posts: -3
«
Embed this message
Reply #5 on: October 14, 2015, 03:18:15 pm » posted from:BANG BUA THONG,NONTHABURI,THAILAND
 Cheesy
Logged
chamDz
Newbie
*
Offline Offline

Posts: 2
«
Embed this message
Reply #6 on: October 26, 2015, 05:00:24 pm » posted from:,,Sri Lanka
i have some concerns regarding this  Embarrassed
Logged
Pages: [1]   Go Up
  Print  
Give me a standpoint and I will move the earth. ...Archimedes (287-212BC)
« previous next »
 
Jump to:  


Related Topics
Subject Started by Replies Views Last post
Common Emitter Transistor Amplifier
Electronic 		Fu-Kwun Hwang 4 34025 Last post October 24, 2015, 04:38:08 pm
by FamelJone
car simulation
Physics Questions 		samsooom 3 21399 Last post January 16, 2012, 05:12:42 am
by desertrose3
Common Emitter Transistor Amplifier
electromagnetism 		ahmedelshfie 0 6741 Last post May 16, 2010, 04:16:06 am
by ahmedelshfie
Differential Amplifier
Electronic 		Fu-Kwun Hwang 0 6692 Last post February 25, 2011, 10:53:27 pm
by Fu-Kwun Hwang
The Common Emitter Amplifier Circuit
Electronic 		Fu-Kwun Hwang 4 79682 Last post July 23, 2015, 01:47:35 pm
by chmod444
Powered by MySQL Powered by PHP Powered by SMF 1.1.13 | SMF © 2006-2011, Simple Machines LLC Valid XHTML 1.0! Valid CSS!
Page created in 0.456 seconds with 22 queries.since 2011/06/15