NTNUJAVA Virtual Physics LaboratoryEnjoy the fun of physics with simulations!
July 29, 2015, 02:38:45 am

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 Author Topic: RLC circuit simulation (DC Voltage source)  (Read 124178 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
Fu-Kwun Hwang
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 « Embed this message on: January 29, 2004, 09:19:08 pm » posted from:,,Satellite Provider

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Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
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This is a RLC series circuit simulation (with DC Voltage source) java applet.
1. R is the resistor where $V_R= I R$,
2. L is the inductor where $V_L=L\frac{dI}{dt}$
3. C is the capacitor where $V_c=Q/C= \frac{1}{C} \int I dt$

If the DV voltage source is V, then $V=V_R+V_L+V_C$

1. Setup
There are 4 green circles represent nodes for the circuit.
You can put one of the selected element into the circuit at a time.
There are 5 circuit elements: Voltage source , Resistor, Inductor, Capacitor and connector.
LEFT CLICK one of the circuit elements (within the area) to select it.

Enter new value into the text Field will change its parameter.
Then, LEFT CLICK between any two nodes (near gray line) to put the element into the circuit. e.g.

If the circuit is a closed circuit, the voltage at each node will be shown as the height relative to the gray circle(in bottom left corner). e.g.

There is no charge stored in the capacitor initially, however, you can drag one node of the capacitor (up/down) to charge it.
If your circuit includes at least one voltage source and one resistor, it will change into simulation mode. e.g. R-L-C circuit setting.

2. Simulation mode
Press Start to start the simulation.
The node will move up and down as voltage changes with time.
RIGHT CLICK will suspend the animation, click it again to resume.
Click the area above the DC voltage source change the time scale:
Left click to increase the speed, right click to slow down.
The elapsed time is represented as t= a*b us (means a*b micro seconds).
Voltage as function of time V(t) at each node are shown as red dots. Each dot = b micro seconds.

If you want to know the current I(t) of the circuit, check out the voltage variation of any one of the resistors.
Press Ready to reset the time back to t=0.
3. Press Reset to remove all the elements from the circuit, reset to defaults.
You can change circuit elements at any time. (step 1)
LEFT CLICK to select element and put it into the circuit.

You can try many different type of simulation with this java applet.
V-R, V-R-C, V-R-L, V-R-L-C , V-R-C-R ....

Just try it and have a nice day!

Registed user can get files related to this applet for offline access.
Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
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stevfisica
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 « Embed this message Reply #1 on: November 22, 2004, 05:55:38 am »

:idea:
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MikeSmith
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 « Embed this message Reply #2 on: February 16, 2009, 01:21:16 pm »

If you use a source amplitude of 1 V, then values of the voltage across the inductor and its ... of a series RLC circuit in terms of $L$ and $C$ . Simulation .... Your supply has a 7806, so the DC output voltage should be close to 6 V.

Nice Website for students.-*-
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Dragonknight768
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 « Embed this message Reply #3 on: May 04, 2009, 10:34:18 am »

what is this terms $L$ and $C$?I am just a little confused to it..,

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Fu-Kwun Hwang
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 « Embed this message Reply #4 on: June 12, 2009, 02:48:50 pm » posted from:Taipei,T\'ai-pei,Taiwan

The following is flash movie shows demo for the above simulation.
http://www.phy.ntnu.edu.tw/ntnujava/swf/rlcdc.swf

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ender
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 « Embed this message Reply #5 on: August 29, 2009, 12:44:15 am » posted from:Folsom,California,United States

Hi, the applet looks great! But for some reason after I put all the elements(vsrc, resistor, etc), I do not see a start button to press?
can you pls. help?
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Fu-Kwun Hwang
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 « Embed this message Reply #6 on: August 29, 2009, 08:58:01 am » posted from:Taipei,T\'ai-pei,Taiwan

The button next to reset button is labeled as "ready". You need to add four elements into the circuit to complete the loop to find the label change to "start".
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MikeSmith
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 « Embed this message Reply #7 on: February 03, 2010, 07:03:04 pm » posted from:Houston,Texas,United States

Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics! -*-
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markweee
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 « Embed this message Reply #8 on: April 20, 2010, 03:23:38 pm » posted from:Karachi,Sindh,Pakistan

If you can not find physics related simulations you want. Post it here, describe the requirement and the design of the simulation in detail. And we will try to create one for you for free! We need to know the purpose for the simulation and the targeted user. Normally, we will start to create it within one week as soon as we have enough information to create the simulation.-*-
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