TwinAmp Pro Power Supply EJ18-ECE342-S24

C++
C
Analog
System Design
Soldering
Embedded Systems
Hardware Verification
Hardware
Consumer Product
Junior Design

This two-channel power supply uses independent buck converters to output 2-14V at a maximum current of 1.5A. Designed for use in low-load electronics testing, the system's output voltage and current is more than capable of powering the components the end user would need. The heart of each channel is a buck converter integrated circuit with integrated feedback for high levels of efficiency and low complexity. Accompanying the buck converters on each channel are eFuses which shut off either channel if it reaches an output current of higher than 1.5A at a speed higher than a conventional fuse. To create a user-friendly package, the output voltage and current of both channels are displayed on large seven-segment displays. Enclosing the internals of the power supply is a custom face-plate and a clear housing which protects them from dust and water splashes while keeping the end user out of the electronics. Though all group members managed to accomplish a lot over the course of the term, we are most proud of our system's packaging, which utilizes three custom PCBs to house nearly every component in the project. Though it wasn't possible this term, if the group were to continue the project, our first priority would be to retrofit the system for wall power.

9 Lifts 

Artifacts

Name Description
Project Summary This executive summary outlines the team's approach to efficiently solving the task at hand.   Download
Contact Sheet Emails of all the group members   Download
Showcase Video A video detailing the ins and outs of the TwinAmp Pro   Link
Power Conversion PCB Schematic Schematic of PCB containing buck converters, overcurrent protection, and power monitors   Download
Power Conversion PCB Top Layer Top Layer of PCB containing buck converters, overcurrent protection, and power monitors   Download
Power Conversion PCB Bottom Layer Bottom Layer of PCB containing buck converters, overcurrent protection, and power monitors   Download
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