Week #4: (2/11-15) PWM Circuit

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rjagodowski
Posts: 1663
Joined: Fri Sep 04, 2015 6:59 pm

Week #4: (2/11-15) PWM 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, 2/11. 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.
LM311 comparators.pdf
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LM311 Data Sheet.pdf
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ctboutin0001
Posts: 63
Joined: Mon Sep 18, 2017 9:18 am

Re: Week #4: (2/11-15) PWM Circuit

Post by ctboutin0001 »

I have finished the lab for this week. Here are the screenshots.
Attachments
table26_1_1.png
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table26_1_2.png
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rgomez0001
Posts: 42
Joined: Tue Sep 11, 2018 12:50 pm

Re: Week #4: (2/11-15) PWM Circuit

Post by rgomez0001 »

Finished this weeks lab
Attachments
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ucppj_8.png
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djean0001
Posts: 56
Joined: Tue Sep 12, 2017 1:38 pm

Re: Week #4: (2/11-15) PWM Circuit

Post by djean0001 »

The lab PWM Circuit has been completed by DJ.
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almarafuga0001
Posts: 60
Joined: Fri Sep 15, 2017 9:18 am

Re: Week #4: (2/11-15) PWM Circuit

Post by almarafuga0001 »

I have completed this lab, here are the screenshots. ( Probe 2 = Probe )
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scope_9.png
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scope_10.png
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scope_11.png
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njberrios
Posts: 47
Joined: Thu Sep 14, 2017 1:09 pm

Re: Week #4: (2/11-15) PWM Circuit

Post by njberrios »

lab completed
Attachments
eet250_week4(a).png
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eet250_week4(b).png
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eet250_week4(c).png
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crlapan
Posts: 56
Joined: Tue Sep 12, 2017 10:19 am

Re: Week #4: (2/11-15) PWM Circuit

Post by crlapan »

PWM Lab Complete
scope_0.png
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scope_1.png
scope_1.png (29.01 KiB) Viewed 641 times
scope_2.png
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ajfranqui0001
Posts: 54
Joined: Mon Sep 25, 2017 10:29 am

Re: Week #4: (2/11-15) PWM Circuit

Post by ajfranqui0001 »

I have completed the lab for this week. Here are the screenshots.
Attachments
scope_9.png
scope_9.png (31.22 KiB) Viewed 640 times
scope_10.png
scope_10.png (30.68 KiB) Viewed 640 times
scope_12.png
scope_12.png (31 KiB) Viewed 640 times
jlewis0001
Posts: 15
Joined: Wed Sep 19, 2018 10:20 pm

Re: Week #4: (2/11-15) PWM Circuit

Post by jlewis0001 »

COMPLETE
Attachments
scope_9.png
scope_9.png (33.8 KiB) Viewed 637 times
scope_8.png
scope_8.png (31.55 KiB) Viewed 637 times
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