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

[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

(117.82 KiB) Downloaded 212 times

LM311 Data Sheet.pdf

(1.76 MiB) Downloaded 217 times

[ctboutin0001]

I have finished the lab for this week. Here are the screenshots.

[rgomez0001]

Finished this weeks lab

[djean0001]

The lab PWM Circuit has been completed by DJ.

[almarafuga0001]

I have completed this lab, here are the screenshots. ( Probe 2 = Probe )

[njberrios]

lab completed

[crlapan]

PWM Lab Complete

scope_0.png (28.99 KiB) Viewed 5192 times

scope_1.png (29.01 KiB) Viewed 5192 times

scope_2.png (29 KiB) Viewed 5192 times

[ajfranqui0001]

I have completed the lab for this week. Here are the screenshots.

[jlewis0001]

COMPLETE