ExpEYES/C3/Transient-Response-of-Circuits/English

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Visual Cue Narration
Slide Number 1

Title Slide

Hello everyone.

Welcome to this tutorial on Transient Response of circuits.

Slide Number 2

Learning Objectives

  • Transient response of RC, RL and LCR circuits
  • Under damped discharge of LCR circuit
  • RC integration and Differentiation.
In this tutorial we will study:
  • Transient response of RC, RL and LCR circuits
  • Under damped discharge of LCR circuit
  • RC integration and Differentiation.
Slide Number 3

System Requirement

  • ExpEYES v 3.1.0
  • Ubuntu Linux OS v. 14.10.
Here I am using,
  • ExpEYES version 3.1.0
  • Ubuntu Linux OS version 14.10.
Slide Number 4

Pre-requisties

You should be familiar with:


ExpEYES interface.

For relevant tutorials, visit our website.

www.spoken-tutorial.org.

To follow this tutorial, you should be familiar with:

ExpEYES Junior interface.

If not, for relevant tutorials, please visit our website.

Let's first define transient Response of a circuit.
Slide Number 5

Transient Response

Transient Response is, how a circuit responds to stored energy in capacitors or inductors.

Stored energy in a capacitor or an inductor, can be dissipated by a resistor.

Transient Response is, how a circuit responds to stored energy in capacitors or inductors.


The stored energy in a capacitor or an inductor, can be dissipated by a resistor.

Slide Number 6

Transient Response of RC

Demonstrate transient Response of RC circuit.

Now we will demonstrate transient Response of RC circuit.
Slide Number 7

Transient Response of RC

Plot Step up and Step down voltage curves of RC circuit.

Measure RC in milli seconds.

In this experiment we will,
  • Plot Step up and Step down voltage curves of RC circuit.
  • Measure RC in milli seconds.
Show the picture.


Point to the circuit diagram.

To perform this experiment, OD1 is connected to A1 through 1K resistor.


1uF(one micro farad) capacitor is connected between A1 and ground(GND).


This is the circuit diagram.

Let's see the result on the Plot window.
Point to the Plot window,

click on EXPERIMENTS button.

Select RC Circuit.

On the Plot window,

click on EXPERIMENTS button.


Select RC Circuit.

Point to the windows. Transient response of RC Circuit and Schematic windows open.


Schematic window shows RC Circuit Transient.

Click on 0 to 5V STEP button.

Point to the curve.

On the Transient response of RC Circuit window, click on 0 to 5V STEP button.


Step up voltage curve is displayed.

Click on 5 to 0V STEP button.

Point to the curve.

Then click on 5 to 0V STEP button.


Step down voltage curve is displayed.

Click on Calculate RC button.

Point to the value.

Click on Calculate RC button.

RC =1.14 msec is displayed.

Click on Clear button. Click on Clear button to clear the window.
Click on CC Charge button.

Point to the trace.

Click on CC Charge button.

A horizontal trace is seen at 4.5 volts.

Slide Number 8

Charging of capacitor

  • Charging of capacitor with constant current.
  • Measure RC in milli Seconds.
Next we will show:
  • Charging of capacitor with constant current and
  • Measure RC in milli seconds.
Show the picture.


Show the circuit diagram.

In the circuit we will connect 1K resistor to CCS instead of OD1.


This is the circuit diagram.

Click on CLEAR button. Click on CLEAR button to clear the window.
Click on CC Charge button.

Point to the curve.

Click on CC Charge button.

Voltage across the capacitor rises ex-ponentially.

Click on Calculate RC button.

Point to the value.

Click on Calculate RC button.

Value of RC= 5.81 mSec is displayed.

Slide Number 9

Transient Response of RL

Demonstrate transient Response of RL.

Now we will demonstrate transient Response of RL circuit.
Slide Number 10

Transient Response of RL


Plot Step up and Step down voltage curves of RL circuit.

Measure R/L.

In this experiment we will,
  • Plot Step up and Step down voltage curves of RL and
  • Measure R/L.
Show the picture. In this experiment IN1 is connected to OD1.

OD1 is connected to A1 through 1K resistor.

A1 is connected to GND through a coil.

Show the circuit diagram. This is the circuit diagram.
Let's see the result on the Plot window.
Point to the Plot window,

click on EXPERIMENTS button.


Select RL Circuit.

On the Plot window, click on EXPERIMENTS button.


Select RL Circuit.

Point to the windows. Transient response of RL Circuit and Schematic windows open.


Schematic window shows RL Circuit Transient.

Click on 0 to 5V STEP button.

Point to the curve.

On the Transient response of RL Circuit window, click on 0 to 5V STEP button.


Step up voltage curve is displayed.

Click on 5 to 0V STEP button.

Point to the curve.

Click on 5 to 0V STEP button.

Step down voltage curve is displayed.

Click on Calculate R/L button.

Point to the values.

Click on Calculate R/L button to display the values.


L/R value is =0.083mSec(milli second).


Rind value is =529 Ohm.


Inductor value is =127.6mH(milli henry).


Here R is resistance L is inductance and Rind is resistance of the inductor.

Slide Number 11

Assignment


Plot voltage curves of RL circuit using two coils connected in series.

As an assignment,


Plot voltage curves of RL circuit using two coils connected in series.

Slide Number 12

LCR Circuit

Show under damped discharge of LCR circuit.

Now we will show under damped discharge of LCR circuit.
Show the picture.


Show the circuit diagram.

In this experiment, OD1 is connected to A1 through a coil.


A1 is connected to GND through 0.1uF(0.1 micro farad) capacitance.


This is the circuit diagram.

Let's see the result on the Plot window.
Point to the Plot window,

click on EXPERIMENTS button.

Select RC Circuit.

On the Plot window, click on EXPERIMENTS button.

Select RLC Discharge.

Point to the windows. EYES Junior: RLC Discharge and Schematic windows open.


Schematic window shows RLC Circuit Transient.

Click on 0 to 5V STEP button.

Point to the curve.

On the EYES Junior: RLC Discharge window, click on 5->0V STEP button.


Step down voltage curve is displayed.

Move the mS/div slider, click on 5->0V STEP button.

Point to the curve.

Move the mS/div slider and click on 5->0V STEP button.


Under damped discharge curve is displayed.

Click on FIT button.


Point to the values.

Click on FIT button to display the values.


Resonant Frequency =1.38 KHz and Damping = 0.300

Slide Number 13

Assignment


Plot Over damped discharge of LCR circuit using 2K resistor.

As an assignment,


Plot over damped discharge of LCR circuit using a 2K resistor.


This is the circuit diagram.

Slide Number 14


RC Integration

Demonstrate RC integration

Now we will demonstrate RC integration.
Slide Number 15


RC Integration

Transform a square wave to a triangular wave.

In this experiment we will transform,
  • a square wave into a triangular wave.
Show the picture.


Point to the circuit diagram.

Here SQR2 is connected to A1 through 1K resistor.


This is the circuit diagram.

Let's see the result on the Plot window.
Set SQR2 to 1000 Hz. On the Plot window set SQR2 to 1000 Hz.


Click on SQR2 check box.

Move the frequency slider. Move the frequency slider.
Move the mSec/div slider. Move the mSec/div slider to adjust the wave.

A square wave is generated.

Show the picture.


Point to the circuit diagram.

In the same connection,

Connect A1 to GND through 1uF(one micro farad) capacitor.

This is the circuit diagram.

Point to the wave. A triangular wave is generated.


A square wave is transformed to a triangular wave when RC is integrated.

Click on XMG button. Click on XMG button to show the Grace plot of the triangular wave.
Slide Number 16


RC Differentiation.

Demonstrate RC Differentiation.

Now we will demonstrate RC differentiation.
Slide Number 17


RC Differentiation.

Transform a square wave to a narrow spikes wave.

In this experiment we will transform a square wave to a narrow spikes wave.
Show the picture.


Point to the circuit diagram.

In this experiment SQR2 is connected to A1 through 1uF(one micro farad) capacitor.


This is the circuit diagram.

Let's see the result on the Plot window.
A square wave is generated.
Show the picture.


Point to the circuit diagram.

In the same connection,

Connect A1 to GND through 1K Resistor


This is the circuit diagram .

Set SQR2 to 100 Hz. On the Plot window Set SQR2 to 100 Hz.
Move the mSec/div slider.

Point to the waves.

Move the mSec/div slider to adjust the waves.

A narrow spikes wave is generated.

A square wave is transformed to a narrow spikes wave when RC is differentiated.

Click on XMG button. Click on XMG button to show the Grace plot.
Let's summarize.
Slide Number 18

Summary

We have studied,

  • Transient response of RC, RL and LCR circuits.
  • Under damped discharge of LCR circuit
  • RC integration and Differentiation.
In this tutorial we have studied,
  • Transient response of RC, RL and LCR circuits.
  • Under damped discharge of LCR circuit
  • RC integration and Differentiation.
Slide Number 19

Acknowledgement

Watch the video available at

http://spoken-tutorial.org

/What is a Spoken Tutorial

It summarises the Spoken Tutorial

project.

If you do not have good bandwidth,

you can download and watch it.

  • This video summarises the Spoken Tutorial project
  • If you do not have good bandwidth, you can download and watch it.
Slide Number 20

The Spoken Tutorial Project Team

Conducts workshops using spoken

tutorials

Gives certificates to those who pass

an online test

For more details, please write to

contact@spoken-tutorial.org

* We conduct workshops using Spoken Tutorials and give certificates.
  • Please contact us.
Slide number 21

Spoken Tutorial Project is a part of

the Talk to a Teacher project

It is supported by the National

Mission on Education through ICT,

MHRD, Government of India

More information on this Mission is

available at

http://spoken-tutorial.org

/NMEICT-Intro


The Spoken Tutorial Project is funded by NMEICT, MHRD Government of India
This tutorial is contributed by Kaushik Datta and Madhuri Ganapathi.

Thank you for joining.

Contributors and Content Editors

Madhurig