Difference between revisions of "Lab 9 RS"

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'''Lab 9: Diode Circuits'''                      '''Roman Shapovalov'''
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'''Lab 9: Diode Circuits'''  
  
 
=Clipping Circuit=
 
=Clipping Circuit=
 
1.) Construct the circuit shown below using a silicon diode.
 
1.) Construct the circuit shown below using a silicon diode.
  
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[[File:TF_EIM_Lab9.png | 200 px]]
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[[File:TF_EIM_Lab9.png | 400 px]]
  
 
2.) Use a  sine wave generator to drive the circuit so <math>V_{in} = V_0 \cos(2 \pi \nu t)</math> where <math>V_0 = 0.1</math> V and <math> \nu</math>  = 1kHz. (20 pnts)
 
2.) Use a  sine wave generator to drive the circuit so <math>V_{in} = V_0 \cos(2 \pi \nu t)</math> where <math>V_0 = 0.1</math> V and <math> \nu</math>  = 1kHz. (20 pnts)
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#Construct the circuit below.
 
#Construct the circuit below.
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[[File:TF_EIM_Lab9a.png | 200 px]]
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[[File:TF_EIM_Lab9a.png | 400 px]]
 
#Select <math>R_1</math> and <math>R_2</math> such that the current from the +5V DC source is less than 1.0 mA and the DC voltage at <math>V_{out}</math> is 3 V when there is no input pulse.  
 
#Select <math>R_1</math> and <math>R_2</math> such that the current from the +5V DC source is less than 1.0 mA and the DC voltage at <math>V_{out}</math> is 3 V when there is no input pulse.  
 
#Select a capacitor <math>(C)</math>and a pulse width \<math>tau</math>  to form a differentiating circuit for the pulse from the signal generator.  Hint: <math>R_{12}C \ll \tau</math>.  
 
#Select a capacitor <math>(C)</math>and a pulse width \<math>tau</math>  to form a differentiating circuit for the pulse from the signal generator.  Hint: <math>R_{12}C \ll \tau</math>.  
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#Explain your results in parts 1 & 2 in terms of the diode turn-on voltage. (20 pnts)
 
#Explain your results in parts 1 & 2 in terms of the diode turn-on voltage. (20 pnts)
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[[Forest_Electronic_Instrumentation_and_Measurement]]
 
[[Forest_Electronic_Instrumentation_and_Measurement]]
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[https://wiki.iac.isu.edu/index.php/Electronics_RS Go Back to All Lab Reports]

Revision as of 04:50, 22 February 2011

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Lab 9: Diode Circuits

Clipping Circuit

1.) Construct the circuit shown below using a silicon diode.

TF EIM Lab9.png

2.) Use a sine wave generator to drive the circuit so [math]V_{in} = V_0 \cos(2 \pi \nu t)[/math] where [math]V_0 = 0.1[/math] V and [math] \nu[/math] = 1kHz. (20 pnts)

3.)Based on your observations using a oscilloscope, sketch the voltages [math]V_{in}[/math] and [math]V_{out}[/math] as a function of time.

4.)Do another sketch for[math] V_0[/math] = 1.0 V and another for 10.0 V (DONT LET ANY SMOKE OUT!). (20 pnts)

Differentiating Circuit with clipping

  1. Construct the circuit below.

TF EIM Lab9a.png

  1. Select [math]R_1[/math] and [math]R_2[/math] such that the current from the +5V DC source is less than 1.0 mA and the DC voltage at [math]V_{out}[/math] is 3 V when there is no input pulse.
  2. Select a capacitor [math](C)[/math]and a pulse width \[math]tau[/math] to form a differentiating circuit for the pulse from the signal generator. Hint: [math]R_{12}C \ll \tau[/math].
  3. plot [math]V_{in}[/math] and [math]V_{out}[/math] as a function of time using your scope observations. (20 pnts)
  4. Now add the diode circuit from part 1 to prevent [math]V_{out}[/math] from rising above +5 V. Sketch the new circuit below.
  5. plot [math]V_{in}[/math] and [math]V_{out}[/math] as a function of time with the diode circuit you added using your scope observations. (the diode should clip off positive spikes)(20 pnts)

Questions

  1. Explain your results in parts 1 & 2 in terms of the diode turn-on voltage. (20 pnts)


Forest_Electronic_Instrumentation_and_Measurement Go Back to All Lab Reports

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