Experiment #4: (2/13-17) PWM Control Circuit
-
- Posts: 2383
- Joined: Fri Sep 04, 2015 6:59 pm
Experiment #4: (2/13-17) PWM Control Circuit
NOTE: Due to a difference between our lab equipment and what is specified in this lab, there are numerous adjustments and changes made to the schematics and tables in the handouts. Follow the modified directions on the lab sheet very carefully.
This week we will investigate a circuit which will create a PWM (Pulse-Width Modulated) output. You can download a copy of the experiment here in the Registered Users Only area. A hard copy will be provided for you in class on Monday, 2/13. Additional copies will be available in the lab area.
This circuit uses the LM311 Precision Comparator which most of you used last semester for the Thermostat Temperature Comparator experiment, along with the LM34. There are additional handouts to explain the operation of the LM311 and the actual LM311 Data Sheet.
This week we will investigate a circuit which will create a PWM (Pulse-Width Modulated) output. You can download a copy of the experiment here in the Registered Users Only area. A hard copy will be provided for you in class on Monday, 2/13. Additional copies will be available in the lab area.
This circuit uses the LM311 Precision Comparator which most of you used last semester for the Thermostat Temperature Comparator experiment, along with the LM34. There are additional handouts to explain the operation of the LM311 and the actual LM311 Data Sheet.
- Attachments
-
- LM311 comparators.pdf
- (117.82 KiB) Downloaded 203 times
-
- LM311 Data Sheet.pdf
- (1.76 MiB) Downloaded 194 times
Re: Experiment #4: (2/13-17) PWM Control Circuit
lab completed
- Attachments
-
- lab26_1_25v.png (30.2 KiB) Viewed 16456 times
-
- lab26_2_5v1.png (30.73 KiB) Viewed 16456 times
-
- lab26_3_75v.png (30.6 KiB) Viewed 16456 times
Re: Experiment #4: (2/13-17) PWM Control Circuit
Lab Completed
- Attachments
-
- timing_1.png (29.22 KiB) Viewed 16455 times
-
- timing_2.png (28.89 KiB) Viewed 16455 times
-
- timing_3.png (29.17 KiB) Viewed 16455 times
-
- Posts: 35
- Joined: Fri Sep 11, 2015 9:33 am
Re: Experiment #4: (2/13-17) PWM Control Circuit
henry huggins lab 26
- Attachments
-
- scope_22.png (29.96 KiB) Viewed 16453 times
-
- scope_23.png (29.59 KiB) Viewed 16453 times
-
- scope_24.png (29.69 KiB) Viewed 16453 times
Re: Experiment #4: (2/13-17) PWM Control Circuit
Lab Complete
- Attachments
-
- tpc01.png (31.23 KiB) Viewed 16451 times
-
- tpc02.png (31.95 KiB) Viewed 16451 times
-
- tpc03.png (31.86 KiB) Viewed 16451 times
Re: Experiment #4: (2/13-17) PWM Control Circuit
lab done
- Attachments
-
- scope_0.png (30.5 KiB) Viewed 16450 times
-
- scope_1.png (30.75 KiB) Viewed 16450 times
-
- scope_2.png (30.6 KiB) Viewed 16450 times
Re: Experiment #4: (2/13-17) PWM Control Circuit
Lab Completed!
- Attachments
-
- scope____6.png (28.98 KiB) Viewed 16449 times
-
- scope____7.png (28.91 KiB) Viewed 16449 times
-
- scope____8.png (28.96 KiB) Viewed 16449 times
-
- Posts: 43
- Joined: Fri Sep 11, 2015 9:28 am
Re: Experiment #4: (2/13-17) PWM Control Circuit
LAB COMPLETED
- Attachments
-
- scope____6.png (28.98 KiB) Viewed 16447 times
-
- scope____7.png (28.91 KiB) Viewed 16447 times
-
- scope____8.png (28.96 KiB) Viewed 16447 times
Re: Experiment #4: (2/13-17) PWM Control Circuit
Done
- Attachments
-
- scope____6.png (28.98 KiB) Viewed 16446 times
-
- scope____7.png (28.91 KiB) Viewed 16446 times
-
- scope____8.png (28.96 KiB) Viewed 16446 times
Re: Experiment #4: (2/13-17) PWM Control Circuit
Lab complete
- Attachments
-
- ex4_1.png (30.22 KiB) Viewed 16204 times
-
- ex4_2.png (29.84 KiB) Viewed 16204 times
-
- ex4_3.png (30.03 KiB) Viewed 16204 times
Re: Experiment #4: (2/13-17) PWM Control Circuit
lab complete
- Attachments
-
- lab_4_1.png (34.9 KiB) Viewed 16202 times
-
- lab_4_2.png (32.52 KiB) Viewed 16202 times
-
- lab_4_3.png (32.64 KiB) Viewed 16202 times
Re: Experiment #4: (2/13-17) PWM Control Circuit
lab completed
- Attachments
-
- lab_4_1.png (34.9 KiB) Viewed 16194 times
-
- lab_4_2.png (32.52 KiB) Viewed 16194 times
-
- lab_4_3.png (32.64 KiB) Viewed 16194 times
Re: Experiment #4: (2/13-17) PWM Control Circuit
Completed 2/15
- Attachments
-
- E4_00.png (27.73 KiB) Viewed 16189 times
-
- E4_25.png (30.04 KiB) Viewed 16189 times
-
- E4_26.png (27.92 KiB) Viewed 16189 times
-
- E4_51.png (27.28 KiB) Viewed 16189 times
-
- E4_75.png (27.85 KiB) Viewed 16189 times