Project presentation
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Audio Signal Modulation of a LED BY: MITCHELL SENGER KARTHIKVEL RATHINAVEL YUTING XI
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Transcript of Project presentation
![Page 1: Project presentation](https://reader030.fdocuments.in/reader030/viewer/2022032506/55cb36edbb61eb8b4e8b45df/html5/thumbnails/1.jpg)
Audio Signal Modulation of a LED
BY:
M ITCHELL SENGER
KARTHIKVEL RATH INAVEL
YUT ING X I
![Page 2: Project presentation](https://reader030.fdocuments.in/reader030/viewer/2022032506/55cb36edbb61eb8b4e8b45df/html5/thumbnails/2.jpg)
Outline Background
Modulation
Design Approach
Signal Analysis
Observations and Results
Questions
![Page 3: Project presentation](https://reader030.fdocuments.in/reader030/viewer/2022032506/55cb36edbb61eb8b4e8b45df/html5/thumbnails/3.jpg)
LED Modulation
(Source: Palaris Page125)
![Page 4: Project presentation](https://reader030.fdocuments.in/reader030/viewer/2022032506/55cb36edbb61eb8b4e8b45df/html5/thumbnails/4.jpg)
Summing Amplifier
![Page 5: Project presentation](https://reader030.fdocuments.in/reader030/viewer/2022032506/55cb36edbb61eb8b4e8b45df/html5/thumbnails/5.jpg)
Design Approach
![Page 6: Project presentation](https://reader030.fdocuments.in/reader030/viewer/2022032506/55cb36edbb61eb8b4e8b45df/html5/thumbnails/6.jpg)
Signal Analysis• Input Signal
• Modulated Output Signal
•Transmitted Across Phototransistor
![Page 7: Project presentation](https://reader030.fdocuments.in/reader030/viewer/2022032506/55cb36edbb61eb8b4e8b45df/html5/thumbnails/7.jpg)
Input Signals
![Page 8: Project presentation](https://reader030.fdocuments.in/reader030/viewer/2022032506/55cb36edbb61eb8b4e8b45df/html5/thumbnails/8.jpg)
Modulated Output Signal
![Page 9: Project presentation](https://reader030.fdocuments.in/reader030/viewer/2022032506/55cb36edbb61eb8b4e8b45df/html5/thumbnails/9.jpg)
Transmitted Output Signal
![Page 10: Project presentation](https://reader030.fdocuments.in/reader030/viewer/2022032506/55cb36edbb61eb8b4e8b45df/html5/thumbnails/10.jpg)
Observations and Results 1. Modulated Voltage and Current Signal Across LED
2. Transmitted Signal Strength is low. Current amplifier can be used to solve this problem 3. Successful audio transmission through modulation