Power on Liong Ma

SiC Inverter

Sun, 26 Jul 2026 00:00:00 +0000

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.

Inverter Optimizer

Sat, 25 Jul 2026 00:00:00 +0000

Traction Inverter Optimization

Quad Inverter

Mon, 27 Apr 2026 00:00:00 +0000

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

GaN DAB Converter

Thu, 21 Aug 2025 00:00:00 +0000

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.

LV Battery

Wed, 04 Jun 2025 00:00:00 +0000

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.

SiC Inverter

Thu, 24 Apr 2025 00:00:00 +0000

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 Gun

Tue, 02 Apr 2024 00:00:00 +0000

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.

Electric Race Car

Mon, 09 Oct 2023 00:00:00 +0000

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.

Spot Welder

Tue, 03 Oct 2023 00:00:00 +0000

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.

Floodlight

Mon, 26 Dec 2022 00:00:00 +0000

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

Electric Boat Battery

Tue, 26 Apr 2022 00:00:00 +0000

This was the auxiliary and traction battery pack for the applied engineering boat! It uses welded lithium ion cells to work.

Electric Boat Inverter

Sun, 24 Apr 2022 00:00:00 +0000

This is the traction system for the AE boat. It uses a bunch of quickly switching FETs to drive the motor, and uses two relays to switch the direciton the boat is moving, pretty intuitive stuff!