Power

High Efficiency PMSM Inverter for EV Application | https://github.com/liongma/Inverter Co-Optimization of a 3-Phase, 50 kW, 600 V Power-Dense SiC VSI for PMSM Drive Liong Ma Massachusetts Institute of Technology liongma@mit.edu 1. Introduction Electric vehicles (EVs) are advancing quickly to meet decarbonization goals, driven by better batteries, faster charging, and higher-performance motors. At the heart of every EV is the traction inverter — the power electronics that converts battery DC power into the AC power needed to drive the motor. Because EVs are judged on range, performance, and cost, traction inverters are under constant pressure to become more efficient and more power-dense. ...

Traction Inverter Optimization

High Efficiency PMSM Quad Inverter Assembly for EV Application | https://github.com/liongma/Inverter

GaN DAB Converter designed for on-board-charging application. This converter makes use of high frequency planar magnetics to achieve high power density in high voltage vehicles.

This was a battery I designed for FSAE MY25. I designed the nickel welding tabs, the BMS, and also the mechanical structure to hold everything together.

This is my first iteration of a SiC Inverter. It gets its own page because this version was a much less serious attempt at a working product. But it at least spun a motor!

Laser guns are not strictly legal but as long as im not selling it or using it, i should be fine. This laser is found in high power projectors and has been given a new life as this cool laser gun. The laser gets quite hot so its recommended to have a pretty beefy cooling solution on it.

Overview This project’s objective is to design and prototype an affordable electric racecar to demonstrate the potential for EVs as an economically viable and environmentally sustainable transportation solution. Objective The main objective is to create an electric vehicle within 6 months with a budget of $15,000 or less, capable of reliable road performance while minimizing the use of premade or off-the-shelf components. Scope This project involves the design, engineering, and fabrication of the following systems: Mechanical Chassis, Suspension Assembly, Traction battery, Electric power train, Auxiliary Battery, Auxiliary System, Secondary System, Proximity System, Thermal Regulation, User Interface, Energy Management, and Communication Systems. ...

This spot welder is just a bunch of supercapacitors all tied together. I dont recommend it. Technically did the job but it also wore through a ton of electrodes.

This is a floodlight I made out of a cob led panel and a big battery pack!