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university:labs:cascaded_rc_adalm2000 [18 May 2020 17:28] – ↷ Page moved and renamed from university:labs:m2k:cascaded_rc to university:labs:cascaded_rc_adalm2000 Cristina Suteuuniversity:labs:cascaded_rc_adalm2000 [18 May 2020 17:32] – media files from current location Cristina Suteu
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 Build the circuit presented in figure 3 on the solderless breadboard. Build the circuit presented in figure 3 on the solderless breadboard.
  
-{{ :university:courses:electronics:1st_rc.png?300 |}}+{{ :university:labs:1st_rc.png?300 |}}
 <WRAP centeralign>Figure 3: First order RC filter</WRAP> <WRAP centeralign>Figure 3: First order RC filter</WRAP>
  
-{{ :university:courses:electronics:first_order_cascaded_rc_bb_bb.png?900 |}}+{{ :university:labs:first_order_cascaded_rc_bb_bb.png?900 |}}
 <WRAP centeralign>Figure 4: First order RC filter breadboard connections</WRAP> <WRAP centeralign>Figure 4: First order RC filter breadboard connections</WRAP>
 ====Procedure==== ====Procedure====
 In network analyzer you will do a logarithmic sweep. Set the start frequency to  100 Hz and the stop frequency to 20 KHz. The magnitude axis can be set to -50 dB minimum and 10 dB maximum. The phase axis goes from -180 to 90 degrees. In network analyzer you will do a logarithmic sweep. Set the start frequency to  100 Hz and the stop frequency to 20 KHz. The magnitude axis can be set to -50 dB minimum and 10 dB maximum. The phase axis goes from -180 to 90 degrees.
 Run the network analyzer to obtain the frequency response plot of the RC filter.  Run the network analyzer to obtain the frequency response plot of the RC filter. 
-{{ :university:courses:electronics:first_order.png?900 |}}+{{ :university:labs:first_order.png?900 |}}
 <WRAP centeralign>Figure 5: First order RC filter frequency response</WRAP> <WRAP centeralign>Figure 5: First order RC filter frequency response</WRAP>
  
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 ====Hardware setup==== ====Hardware setup====
 Add a second RC low pass section to the prevoius filter as shown in Figure 6. Add a second RC low pass section to the prevoius filter as shown in Figure 6.
-{{ :university:courses:electronics:2nd_rc_ab.png?500 |}}+{{ :university:labs:2nd_rc_ab.png?500 |}}
 <WRAP centeralign>Figure 6: Second order RC filter</WRAP> <WRAP centeralign>Figure 6: Second order RC filter</WRAP>
-{{ :university:courses:electronics:second_order_cascaded_rc_bb_bb.png?900 |}}+{{ :university:labs:second_order_cascaded_rc_bb_bb.png?900 |}}
 <WRAP centeralign>Figure 7: Second order RC filter breadboard connections</WRAP> <WRAP centeralign>Figure 7: Second order RC filter breadboard connections</WRAP>
 ====Procedure==== ====Procedure====
 Keep the same parameters set in the network analizer. Put the oscilloscope channel 2 after the first RC stage and do a single sweep. This will be the reference sweep an can be kept on the plot by pressing the Snapshot button in the Reference section of the Network analizer General Settings. Move the oscilloscope channel 2 after the second RC stage and do another sweep. You should see on the plot the frequency response after both RC stages as in Figure 8. Keep the same parameters set in the network analizer. Put the oscilloscope channel 2 after the first RC stage and do a single sweep. This will be the reference sweep an can be kept on the plot by pressing the Snapshot button in the Reference section of the Network analizer General Settings. Move the oscilloscope channel 2 after the second RC stage and do another sweep. You should see on the plot the frequency response after both RC stages as in Figure 8.
  
-{{ :university:courses:electronics:second_order_rc.png?900 |}}+{{ :university:labs:second_order_rc.png?900 |}}
 <WRAP centeralign>Figure 8: Second order RC filter frequency response </WRAP> <WRAP centeralign>Figure 8: Second order RC filter frequency response </WRAP>
  
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 ====Hardware setup==== ====Hardware setup====
 As a further extension of this cascade of RC low pass filter sections add a third RC section to make a 3rd order filter by connecting another R and C to your circuit as shown in figure 9.  As a further extension of this cascade of RC low pass filter sections add a third RC section to make a 3rd order filter by connecting another R and C to your circuit as shown in figure 9. 
-{{ :university:courses:electronics:3rd_rc_abc.png?500 |}}+{{ :university:labs:3rd_rc_abc.png?500 |}}
 <WRAP centeralign>Figure 9: Third order RC filter</WRAP> <WRAP centeralign>Figure 9: Third order RC filter</WRAP>
  
-{{ :university:courses:electronics:cascaded_rc_bb_scope_ch2.png?900 |}}+{{ :university:labs:cascaded_rc_bb_scope_ch2.png?900 |}}
 <WRAP centeralign>Figure 10: Breadboard connections of the third order RC filter</WRAP> <WRAP centeralign>Figure 10: Breadboard connections of the third order RC filter</WRAP>
  
 ====Procedure==== ====Procedure====
 Keep the same parameters set in the network analizer. Put the oscilloscope channel 2 after the first RC stage ( point A shown in figure 10) and do a single sweep. This will be the reference sweep an can be kept on the plot by pressing the Snapshot button in the Reference section of the Network analizer General Settings. Move the oscilloscope channel 2 after the second RC stage (point B) and do another sweep and press the Snapshot button. You should see on the plot the frequency response after both RC stages. To obtain the frequency response of the third stage put the oscilloscope channel 2 in point C and do another sweep. You should see all three responses as in figure 11. Keep the same parameters set in the network analizer. Put the oscilloscope channel 2 after the first RC stage ( point A shown in figure 10) and do a single sweep. This will be the reference sweep an can be kept on the plot by pressing the Snapshot button in the Reference section of the Network analizer General Settings. Move the oscilloscope channel 2 after the second RC stage (point B) and do another sweep and press the Snapshot button. You should see on the plot the frequency response after both RC stages. To obtain the frequency response of the third stage put the oscilloscope channel 2 in point C and do another sweep. You should see all three responses as in figure 11.
-{{ :university:courses:electronics:third_order.png?900 |}}+{{ :university:labs:third_order.png?900 |}}
 <WRAP centeralign>Figure 11: Third order RC filter frequency response </WRAP> <WRAP centeralign>Figure 11: Third order RC filter frequency response </WRAP>
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university/labs/cascaded_rc_adalm2000.txt · Last modified: 02 Mar 2022 16:33 by Doug Mercer

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