Experiment #4: (2/13-17) PWM Control Circuit

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rjagodowski
Posts: 2368
Joined: Fri Sep 04, 2015 6:59 pm

Experiment #4: (2/13-17) PWM Control Circuit

Post by rjagodowski »

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.
Attachments
LM311 comparators.pdf
(117.82 KiB) Downloaded 202 times
LM311 Data Sheet.pdf
(1.76 MiB) Downloaded 193 times
mfdesjardins0001

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by mfdesjardins0001 »

lab completed
Attachments
lab26_1_25v.png
lab26_1_25v.png (30.2 KiB) Viewed 16385 times
lab26_2_5v1.png
lab26_2_5v1.png (30.73 KiB) Viewed 16385 times
lab26_3_75v.png
lab26_3_75v.png (30.6 KiB) Viewed 16385 times
jplynch0001

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by jplynch0001 »

Lab Completed
Attachments
timing_1.png
timing_1.png (29.22 KiB) Viewed 16384 times
timing_2.png
timing_2.png (28.89 KiB) Viewed 16384 times
timing_3.png
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hhuggins0001
Posts: 35
Joined: Fri Sep 11, 2015 9:33 am

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by hhuggins0001 »

henry huggins lab 26
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scope_22.png
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scope_23.png
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scope_24.png
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rawhite0001

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by rawhite0001 »

I have completed the lab
scope_22.png
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scope_23.png
scope_23.png (29.59 KiB) Viewed 16381 times
scope_24.png
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jcpetlock0001

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by jcpetlock0001 »

Lab Complete
Attachments
tpc01.png
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tpc02.png
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tpc03.png
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rriel0002

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by rriel0002 »

lab done
Attachments
scope_0.png
scope_0.png (30.5 KiB) Viewed 16379 times
scope_1.png
scope_1.png (30.75 KiB) Viewed 16379 times
scope_2.png
scope_2.png (30.6 KiB) Viewed 16379 times
arguilbert0001

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by arguilbert0001 »

Lab Completed!
Attachments
scope____6.png
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scope____7.png
scope____7.png (28.91 KiB) Viewed 16378 times
scope____8.png
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vshovgan0001
Posts: 43
Joined: Fri Sep 11, 2015 9:28 am

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by vshovgan0001 »

LAB COMPLETED :)
Attachments
scope____6.png
scope____6.png (28.98 KiB) Viewed 16376 times
scope____7.png
scope____7.png (28.91 KiB) Viewed 16376 times
scope____8.png
scope____8.png (28.96 KiB) Viewed 16376 times
arbeben0001

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by arbeben0001 »

Done
Attachments
scope____6.png
scope____6.png (28.98 KiB) Viewed 16375 times
scope____7.png
scope____7.png (28.91 KiB) Viewed 16375 times
scope____8.png
scope____8.png (28.96 KiB) Viewed 16375 times
jariopelle

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by jariopelle »

Lab complete
Attachments
ex4_1.png
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ex4_2.png
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ex4_3.png
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nacolon

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by nacolon »

lab complete
Attachments
lab_4_1.png
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lab_4_2.png
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lab_4_3.png
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Dswaldron

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by Dswaldron »

lab completed
Attachments
lab_4_1.png
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lab_4_2.png
lab_4_2.png (32.52 KiB) Viewed 16119 times
lab_4_3.png
lab_4_3.png (32.64 KiB) Viewed 16119 times
erodowicz

Re: Experiment #4: (2/13-17) PWM Control Circuit

Post by erodowicz »

Completed 2/15
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E4_25.png
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E4_75.png
E4_75.png (27.85 KiB) Viewed 16114 times
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