CE 351 Fall 2020 
Homework 1 Power Supply Circuit for MCUs
Name: Zane Sauer
Email: zmsauer@fortlewis.edu

1. Objective
The objective of this homework was to create a power supply unit capable of delivering two different currents, 1 amp and 3 amps, as well as two different voltages, 3.3 Volts and 5 Volts.
2. Schematic

Figure 1: This figure shows the final schematic containing the three IC's that handle the multiple voltages and current outputs. Also shows that ERC errors is clear.

3. Board

Figure 2: Figure 2 shows the board wiring view. Notice in the bottom left it shows that DRC check is clean.


Figure 3: Figure 3 shows the final board product with bottom and top fill.


Figure 4: Figure 4 shows the generated output from PCBWay.


Figure 5: 5V 1A Test


Figure 6: 5V 3A Test


Figure 7: 3.3V 1A Test


Figure 8: 3.3V 3A Test


4. Discussion
I made a ton of mistakes with this lab, but it was a great learning experience. I know for sure now that I will not make these mistakes ever again when I build a PCB. There were many incorrect or missing connections that needed to be fixed, ultimatly making the project much more difficult than it needed to be. I also did not do a good enough job of naming each component and it made it difficult to assemble. Overall this was a great learning exereince and I know that the next PCB that I fabricate will be much easier to assemble and use.