Good 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.

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.

Scanning Quantum Tunneling Microscope

Sat, 13 Jul 2024 00:00:00 +0000

This is a scanning tunneling microscope i made! If it looks janky, thats because it absolutely is. In fact, most times in the day, the thermal expansion of the device causes the SNR to be extremely low causing the device to be unusable. But for a couple hours of the day (for me around 4PM), the temperature peaks and theres a brief 20 minute window for some mesmerizing photos to be made.

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.

Optical Spectrometer

Mon, 03 Jul 2023 00:00:00 +0000

This thing is so cool. I bought a diffraction grating and thought about how cool it would be if I could make something to decode the signals. I have it fed into a raspberry pi with a screen, that calibrates from LEDs and then uses that to find peaks at different optical frequencies. This is then used to find an element in its database to figure out what exactly is producing that light. Then, I used one of my many plasma generators to test how well it works.

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!

Alarm Clock

Sat, 16 Oct 2021 00:00:00 +0000

Gesture Replicator

Thu, 10 Dec 2020 00:00:00 +0000

Quadracopter Drone

Thu, 03 Dec 2020 00:00:00 +0000