{"id":28,"date":"2025-02-08T03:04:31","date_gmt":"2025-02-08T03:04:31","guid":{"rendered":"https:\/\/mrsdprojects.ri.cmu.edu\/2025teamg\/?page_id=28"},"modified":"2025-12-11T23:29:29","modified_gmt":"2025-12-11T23:29:29","slug":"documents","status":"publish","type":"page","link":"https:\/\/mrsdprojects.ri.cmu.edu\/2025teamg\/documents\/","title":{"rendered":"Documents"},"content":{"rendered":"\n
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Team Presentations & Reports<\/h2>\n\n\n\n
Name<\/th>Presented on<\/th>Presentation<\/th>Report<\/th><\/tr><\/thead>
Project Progress on Systems Engineering<\/td>Oct 29, 2024<\/td>Link<\/a><\/td><\/td><\/tr>
Conceptual Design Review<\/td>Dec 5, 2024<\/td>Link<\/a><\/td>Link<\/a><\/td><\/tr>
Progress Review #1<\/td>Feb 13, 2025<\/td>Link<\/a><\/td><\/td><\/tr>
Progress Review #2<\/td>Feb 27, 2025<\/td>Link<\/a><\/td><\/td><\/tr>
Preliminary Design Review<\/td>Mar 11, 2025<\/td>Link<\/a><\/td><\/td><\/tr>
Progress Review #3<\/td>Mar 20, 2025<\/td>Link<\/a><\/td><\/td><\/tr>
Progress Review #4<\/td>Apr 8, 2025<\/td>Link<\/a><\/td><\/td><\/tr>
Critical Design Review<\/td>Apr 28, 2025<\/td>Link<\/a><\/td><\/td><\/tr>
Project Management Review<\/td>Sep 8, 2025<\/td>Link<\/a><\/td><\/td><\/tr>
System Development Review<\/td>Oct 20, 2025<\/td>Link<\/a><\/td><\/td><\/tr>
Standards & Regulations presentation<\/td>Nov 3, 2025<\/td>Link<\/a><\/td><\/td><\/tr>
Fall Validation Demo<\/td>Nov 24,2025<\/td>Link<\/a><\/td><\/td><\/tr>
Public Presentation (poster)<\/td>Dec 3,2025<\/td>Link<\/a><\/td><\/td><\/tr>
Final Report<\/td>Dec 10,2025<\/td><\/td>Link<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

PCB Assignment<\/h2>\n\n\n\n
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Since our drone platform is built from the Hexsoon EDU-650 frame kit, a custom power distribution board (PDB) was included with the system. Instead of replacing the professionally-made PDB, we decided to implement another function that is critical to our project: battery voltage monitoring.<\/p>\n\n\n\n

Ensuring that a LiPo battery is within its operating voltage range is a safety-critical application. The safety requirement of the operating voltage for a LiPo battery is between 3.2V\/cell and 4.2V\/cell. The ideal operating voltage per cell for a LiPo battery is around its nominal voltage of 3.8V\/cell. Overvolting (some cell has a voltage greater than 4.2) and undervolting (some cell has a voltage less than 3.2V) cause permanent damage to the battery, reduce its lifespan and make it susceptible to volatile behavior such as smoking or catching fire. However, overvolting a battery can only happen during charging and we rely on good quality chargers that balance the battery while charging. Hence, we will focus on preventing undervolting.<\/p>\n\n\n\n

Our team is planning on making a printed circuit board (PCB) that can do the following:<\/p>\n\n\n\n