Week #4: (2/10-14) PWM Circuit

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rjagodowski
Posts: 1642
Joined: Fri Sep 04, 2015 6:59 pm

Week #4: (2/10-14) 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 lab on Tuesday or Thursday, 2/11 & 13.

Post your screenshots as a Reply to this Topic.

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
(1.76 MiB) Downloaded 28 times
kjbusiere0001
Posts: 53
Joined: Fri Jan 26, 2018 10:10 am

Re: Week #4: (2/10-14) PWM Circuit

Post by kjbusiere0001 »

Konnor Busiere
Attachments
eet250timeprodc_1.png
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eet250timeprodc_2.png
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eet250timeprodc_4.png
eet250timeprodc_4.png (29.05 KiB) Viewed 429 times
erivera0005
Posts: 38
Joined: Thu Jan 25, 2018 6:13 pm

Re: Week #4: (2/10-14) PWM Circuit

Post by erivera0005 »

I've completed Experiment #4 : Time Proportioning DC Control Circuit
Attachments
IMG_6647.JPG
IMG_6647.JPG (1.19 MiB) Viewed 428 times
Potentiometer 1.25V
Potentiometer 1.25V
scope_03.png (30.4 KiB) Viewed 428 times
Potentiometer 2.50V
Potentiometer 2.50V
scope_04.png (30.06 KiB) Viewed 428 times
Potentiometer 3.75V
Potentiometer 3.75V
scope_05.png (32.02 KiB) Viewed 428 times
Rmreed0001
Posts: 27
Joined: Mon Sep 10, 2018 9:21 am

Re: Week #4: (2/10-14) PWM Circuit

Post by Rmreed0001 »

I have completed the lab.
Attachments
scope_33.png
scope_33.png (30.19 KiB) Viewed 424 times
scope_34.png
scope_34.png (30.31 KiB) Viewed 424 times
scope_35.png
scope_35.png (30.54 KiB) Viewed 424 times
drblain0001
Posts: 42
Joined: Sun Sep 09, 2018 7:28 pm

Re: Week #4: (2/10-14) PWM Circuit

Post by drblain0001 »

Finished the lab
Attachments
scope_86.png
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scope_87.png
scope_87.png (28.25 KiB) Viewed 423 times
scope_88.png
scope_88.png (28.26 KiB) Viewed 423 times
avkaptyug0001
Posts: 43
Joined: Fri Sep 07, 2018 10:15 am

Re: Week #4: (2/10-14) PWM Circuit

Post by avkaptyug0001 »

week 4 250
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week4pic2.png
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csrichter0001
Posts: 43
Joined: Mon Feb 04, 2019 9:22 pm

Re: Week #4: (2/10-14) PWM Circuit

Post by csrichter0001 »

Conner Richter has completed this lab.
Picture 1 => 1.25V
Picture 2 => 2.5V
Picture 3 => 3.75V
Picture 4 => 4.958V
Attachments
csr_lab_7.png
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csr_lab_10.png
csr_lab_10.png (27.37 KiB) Viewed 419 times
vshostak
Posts: 45
Joined: Mon Sep 10, 2018 1:48 pm

Re: Week #4: (2/10-14) PWM Circuit

Post by vshostak »

I have completed this lab.
Attachments
scope_1.2v.bmp
scope_1.2v.bmp (1.15 MiB) Viewed 408 times
scope_2.5v.bmp
scope_2.5v.bmp (1.15 MiB) Viewed 408 times
scope_3.7v.bmp
scope_3.7v.bmp (1.15 MiB) Viewed 408 times
scope_5.0v.bmp
scope_5.0v.bmp (1.15 MiB) Viewed 408 times
pbanaru0001
Posts: 35
Joined: Wed Sep 12, 2018 9:15 am

Re: Week #4: (2/10-14) PWM Circuit

Post by pbanaru0001 »

scope_86.png
scope_86.png (28.09 KiB) Viewed 366 times
scope_87.png
scope_87.png (28.25 KiB) Viewed 366 times
scope_88.png
scope_88.png (28.26 KiB) Viewed 366 times
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