ECET210 Week 7 iLab Complete Solution
Laboratory Procedures
DeVry University
College of Engineering and Information Sciences
Equipment:
Function Generator
Dual Channel Oscilloscope
Parts:
1 - 50 Ω Resistor 1 - 470 nF, 50 V Capacitor
1 - 330 Ω Resistor 4 - 47 µF, 35 V Capacitor
4 - 4.7 mH Inductor 2 - 100 µF, 25 V Capacitor
1 - 470 mH, Inductor
Software:
MultiSim 11
Figure 1 - Low Pass Filter
Frequency, Hz | VOut P-P | GaindB | Frequency, Hz | VOut P-P | GaindB |
100 |
|
| 2000 |
|
|
200 |
|
| 4000 |
|
|
400 |
|
| 8000 |
|
|
800 |
|
| 10000 |
|
|
1000 |
|
|
|
|
|
Table 1 – Low Pass Filter Frequency Response Simulation Data
Low
fC =___________________
fC =___________________
Yes ______ No ______
B. Simulation of RC High Pass Filter
Figure 2 - High Pass Filter
Frequency, Hz | VOut P-P | GaindB | Frequency, Hz | VOut P-P | GaindB |
100 |
|
| 2000 |
|
|
200 |
|
| 4000 |
|
|
400 |
|
| 8000 |
|
|
800 |
|
| 10000 |
|
|
1000 |
|
|
|
|
|
Table 2 - Low Pass Filter Frequency Response Simulation Data
fC =___________________
fC =___________________
Yes ______ No ______
C. Simulation of LC Band Pass Filter
Frequency, Hz | VOut P-P | GaindB | Frequency, Hz | VOut P-P | GaindB |
200 |
|
| 340 |
|
|
250 |
|
| 344 |
|
|
280 |
|
| 348 |
|
|
290 |
|
| 355 |
|
|
300 |
|
| 352 |
|
|
320 |
|
| 356 |
|
|
324 |
|
| 360 |
|
|
330 |
|
|
|
|
|
Table 3 – Band Pass Filter Frequency Response Simulation Data
Upper fC =_____________ Low fC =_____________
http://www.raltron.com/cust/tools/band_pass_filters.asp
The filter has been designed to operate at a center frequency, fo of 340 Hz and a 3dB Bandwidth of 10% of fo.
Log in to the above website; feed the data of center frequency and the bandwidth desired. Verify if the design values chosen for the lab experiment are close enough.
Upper fC =_____________ Low fC =_____________
Yes ______ No ______
Some useful formulas for the Constant K type band pass filter design: | ||
Bandwidth = f2 – f1
|
|
|
Source for the above formulas: “HANDBOOK OF LINE COMMUNICATIONS”, A Royal Signals Pub., 1947.
Using the suggested transformation, change the original PI type filter to T-type and simulate to verify if it works as the original. Include the new filter topology below here
Laboratory Report Cover Sheet
DeVry University
College of Engineering and Information Sciences
Course Number: ECET210
Professor:
Laboratory Number: 6
Laboratory Title: Frequency Response of Low Pass, High Pass, and Band Pass Filters
Submittal Date: Click here to enter a date.
Objectives:
Results:
Conclusions:
Team: |
|
|
|
|
|
| Name |
| Program |
| Signature |
|
|
|
|
|
|
| Name |
| Program |
| Signature |
|
|
|
|
|
|
| Name |
| Program |
| Signature |
Observations/Measurements:
III. A. 3. Low Pass Filter Frequency Response:
Frequency, Hz | VOut P-P | GaindB | Frequency, Hz | VOut P-P | GaindB |
100 |
|
| 2000 |
|
|
200 |
|
| 4000 |
|
|
400 |
|
| 8000 |
|
|
800 |
|
| 10000 |
|
|
1000 |
|
|
|
|
|
III. A. 4. Low Pass Filter Frequency Response:
III. A. 5. Low Pass Filter Simulated Cutoff Frequency:
fC =___________________
III. A. 6. Low Pass Filter Calculated Cutoff Frequency:
fC =___________________
III. A. 7. Low Pass Filter Simulated Versus Calculated Cutoff Frequency:
Match: Yes No
III. B. 3. High Pass Filter Frequency Response:
Frequency, Hz | VOut P-P | GaindB | Frequency, Hz | VOut P-P | GaindB |
100 |
|
| 2000 |
|
|
200 |
|
| 4000 |
|
|
400 |
|
| 8000 |
|
|
800 |
|
| 10000 |
|
|
1000 |
|
|
|
|
|
III. B. 4. High Pass Filter Frequency Response:
III. B. 5. High Pass Filter Simulated Cutoff Frequency:
fC =___________________
III. B. 6. High Pass Filter Calculated Cutoff Frequency:
fC =___________________
III. B. 7. High Pass Filter Simulated Versus Calculated Cutoff Frequency:
Match: Yes No
III. C. 3. Band Pass Filter Frequency Response:
Frequency, Hz | VOut P-P | GaindB | Frequency, Hz | VOut P-P | GaindB |
200 |
|
| 340 |
|
|
250 |
|
| 344 |
|
|
280 |
|
| 348 |
|
|
290 |
|
| 355 |
|
|
300 |
|
| 352 |
|
|
320 |
|
| 356 |
|
|
324 |
|
| 360 |
|
|
330 |
|
|
|
|
|
III. C. 4. Band Pass Filter Frequency Response:
III. C. 5. Band Pass Filter Simulated Cutoff Frequencies:
Upper fC =_____________ Low fC =_____________
III. C. 7. Band Pass Filter Calculated Cutoff Frequencies:
Upper fC =_____________ Low fC =_____________
III. C. 8. Band Pass Filter Simulated Versus Calculated Cutoff Frequency:
Match: Yes No
III C. 9. Modified Center Frequency:
Comment on new design values:
III. BC. 11. T-type Band Pass Filter:
Did the filter work as the original? YES NO
Questions:
| YES / NO | Reasons for Noncompliance with Simulation |
Low Pass Filter |
|
|
High Pass Filter |
|
|
Band Pass Filter |
|
|
Grade:
Deliverable | Points Available | Points Achieved |
Laboratory Cover Sheet | 8 |
|
Working Circuit(s)/Program(s) | 8 |
|
Observations/Measurements | 6 |
|
Questions | 8 |
|
Total Points | 30 |
|
| ||
Comments:
|
ECET210 Week 7 iLab Complete Solution
CH-2 Positive Peak
Voltage 338 V ...
A+ - Thank you!
Thanks for the positive feedback!