Difference between revisions of "Lab 9 TF EIM"
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=Clipping Circuit= | =Clipping Circuit= | ||
#Construct the circuit shown below. | #Construct the circuit shown below. | ||
| − | #Use a 1 kHz sine wave generator to drive the circuit so <math>V_a = V_0 cos(2 \pi \nu t)</math> where <math>V_0 = 0.1</math> V and <math> \nu</math> = 1kHz. ( | + | #Use a 1 kHz sine wave generator to drive the circuit so <math>V_a = V_0 cos(2 \pi \nu t)</math> where <math>V_0 = 0.1</math> V and <math> \nu</math> = 1kHz. (20 pnts) |
#Based on your observations using a scope, sketch the voltage at points A & B as a function of time. | #Based on your observations using a scope, sketch the voltage at points A & B as a function of time. | ||
#Do another sketch for<math> V_0</math> = 1.0 V and another for 10.0 V. (20 pnts) | #Do another sketch for<math> V_0</math> = 1.0 V and another for 10.0 V. (20 pnts) | ||
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#Select <math>R_1</math> and <math>R_2</math> such that the current from the +5V DC source is 1.0 mA and the DC voltage at <math>V_b</math> is 3 V. | #Select <math>R_1</math> and <math>R_2</math> such that the current from the +5V DC source is 1.0 mA and the DC voltage at <math>V_b</math> is 3 V. | ||
#Select a capacitor <math>(C_1)</math> to form a differentiating circuit for the pulse from the signal generator. Hint: <math>R_{12}C_1 \ll \tau</math>. | #Select a capacitor <math>(C_1)</math> to form a differentiating circuit for the pulse from the signal generator. Hint: <math>R_{12}C_1 \ll \tau</math>. | ||
| − | #plot <math>V_A</math> and <math>V_B</math> as a function of time using your scope observations. | + | #plot <math>V_A</math> and <math>V_B</math> as a function of time using your scope observations. (20 pnts) |
# Now add the diode circuit from part 1 to prevent V_B from rising above +5 V. | # Now add the diode circuit from part 1 to prevent V_B from rising above +5 V. | ||
| − | #plot <math>V_A</math> and <math>V_B</math> as a function of time with the diode circuit you added using your scope observations. | + | #plot <math>V_A</math> and <math>V_B</math> as a function of time with the diode circuit you added using your scope observations. (20 pnts) |
=Questions= | =Questions= | ||
| − | #Explain your results in parts 1 & 2 in terms of the diode turn-on voltage. | + | #Explain your results in parts 1 & 2 in terms of the diode turn-on voltage. (20 pnts) |
[[Forest_Electronic_Instrumentation_and_Measurement]] | [[Forest_Electronic_Instrumentation_and_Measurement]] | ||
Revision as of 05:53, 27 October 2010
Lab 9: Diode Circuits
Clipping Circuit
- Construct the circuit shown below.
- Use a 1 kHz sine wave generator to drive the circuit so where V and = 1kHz. (20 pnts)
- Based on your observations using a scope, sketch the voltage at points A & B as a function of time.
- Do another sketch for = 1.0 V and another for 10.0 V. (20 pnts)
Differentiating Circuit with clipping
- Construct the circuit below.
- Select and such that the current from the +5V DC source is 1.0 mA and the DC voltage at is 3 V.
- Select a capacitor to form a differentiating circuit for the pulse from the signal generator. Hint: .
- plot and as a function of time using your scope observations. (20 pnts)
- Now add the diode circuit from part 1 to prevent V_B from rising above +5 V.
- plot and as a function of time with the diode circuit you added using your scope observations. (20 pnts)
Questions
- Explain your results in parts 1 & 2 in terms of the diode turn-on voltage. (20 pnts)