Task 2
For this task we had to create a few components since they were not available inside EAGLE's library. We created the footprint, symbol, and device following the data sheets for each of the following components.
Task 3
For this task we had to create a few components since they were not available inside EAGLE's library. We created the footprint, symbol, and device following the data sheets for each of the following components.
Figure 3. Custom inductor (7447709470).
Figure 4. Custom Voltage Regulator (LM2596).
Figure 5. Custom capacitor (4.7 uF)
Figure 6. Custom diode ( SS34 Schottky)
Figure 7. Second custom capacitor.
Figure 4. Custom Voltage Regulator (LM2596).
Figure 5. Custom capacitor (4.7 uF)
Figure 6. Custom diode ( SS34 Schottky)
Figure 7. Second custom capacitor.
Task 3
In this task I created two more
schematics, one for the 5v supply and one for the 3.3v supply. After I
had all three schematics created in EAGLE I put them together and ran
an ERC check to see if there were any problems with the schematics.
only warnings came back.
Figure 8. Full schematic after adding the switch from the new tutorial.
Figure 9. No errors were reported during an ERC check. Warnings are due to headers having no name.
Figure 8. Full schematic after adding the switch from the new tutorial.
Figure 9. No errors were reported during an ERC check. Warnings are due to headers having no name.
Task 4
After running all error checks we put all of our components inside the board layout and labeled the headers correctly using tplace. Then we poured the copper on the top and bottom layers by using ratsnet. Final step was to save out gerber file and upload it to onlinegerberviewer.azurewebsites.net to check the different layers and outlines of our board.
Figure 10. Boad layout after full schematic was built.
https://onlinegerberviewer.azurewebsites.net/ViewerFigure 11. Top and bottom layer after copper was poured.
Figure 12. PCB Viewer showing some of the important layers of the board.
After running all error checks we put all of our components inside the board layout and labeled the headers correctly using tplace. Then we poured the copper on the top and bottom layers by using ratsnet. Final step was to save out gerber file and upload it to onlinegerberviewer.azurewebsites.net to check the different layers and outlines of our board.
Figure 10. Boad layout after full schematic was built.
https://onlinegerberviewer.azurewebsites.net/ViewerFigure 11. Top and bottom layer after copper was poured.
Figure 12. PCB Viewer showing some of the important layers of the board.
Task 5
After receiving our PCBs, we soldered them with the correct components carefully and tested it to verify it's functionality.
After receiving our PCBs, we soldered them with the correct components carefully and tested it to verify it's functionality.
Figure 13. Clean PCB received from schematic provided.
Figure 14. All compoents soldered into the bored correctly.
Figure 15. PCB connected to a power supply to test functionality, the two input pins were shorted to give power to the board while at the same time probing the GND and output pins to check voltage output.
Figure 16. Shorting the PWR_IN and 5v_3.3v_1a_IN and testing 5v_1A_OUT.
Figure 17. Shorting the PWR_IN and 5v_3.3v_1a_IN and testing 3.3v_1A_OUT.
Figure 18. Shorting the PWR_IN and 5v_3a_IN and testing 5v_3A_OUT.
Figure 16. Shorting the PWR_IN and 3.3v_3a_IN and testing 3.3v_3A_OUT.
Figure 14. All compoents soldered into the bored correctly.
Figure 15. PCB connected to a power supply to test functionality, the two input pins were shorted to give power to the board while at the same time probing the GND and output pins to check voltage output.
Figure 16. Shorting the PWR_IN and 5v_3.3v_1a_IN and testing 5v_1A_OUT.
Figure 17. Shorting the PWR_IN and 5v_3.3v_1a_IN and testing 3.3v_1A_OUT.
Figure 18. Shorting the PWR_IN and 5v_3a_IN and testing 5v_3A_OUT.
Figure 16. Shorting the PWR_IN and 3.3v_3a_IN and testing 3.3v_3A_OUT.
Discussion
Building new component's footprints and devices was interesting, every time I use EAGLE I learn more about what is offered and what can be done with it. After receiving our PCB, we started soldering all the components that were needed. This was a good experience to further our soldering skills. Personally, the only issue I had was having my diodes on the wrong polarity. This prevented my board from working correctly (not outputting the correct voltages). After looking through my schematic and some help from Dr. Li, the issue was resolved and the board worked as expected. overall this homework was fun experience that I hope is repeated.
Building new component's footprints and devices was interesting, every time I use EAGLE I learn more about what is offered and what can be done with it. After receiving our PCB, we started soldering all the components that were needed. This was a good experience to further our soldering skills. Personally, the only issue I had was having my diodes on the wrong polarity. This prevented my board from working correctly (not outputting the correct voltages). After looking through my schematic and some help from Dr. Li, the issue was resolved and the board worked as expected. overall this homework was fun experience that I hope is repeated.