Category
VARIABLE POWER SUPPLY
Status
PROTOTYPE
Focus
Embedded System, Power Supply
Phantom - Advance Type C Power Supply
Project Overview
A custom STM32G0-based advanced power supply for high-power embedded and robotics projects, delivering selectable high-current voltage rails in an ultra-compact design for clean, reliable power.
The Challenge
Variable power supplies with high current output in a compact form factor are hard to find. Most students and researchers end up relying on battery packs paired with separate buck converter modules, an inefficient, bulky, and error-prone setup for powering high-current projects like flight controllers, motor drivers, and other embedded systems.
Our Approach
Phantom was engineered around one goal: an ultra-compact USB-C power supply that lets users select from four voltage outputs on demand, tailored to their project's specific power requirements, all while maintaining low-noise, high-efficiency delivery through P-channel MOSFET switching.
Highlights
Built around the STM32G030K6Tx microcontroller
STUSB4500QTR USB-PD controller for precise, negotiated voltage selection
High-efficiency STL6P3LLH6 P-channel MOSFETs for the power path
Selectable output: 5V, 9V, 12V, and 20V
Ultra-compact form factor, purpose-built for space-constrained projects
4-layer PCB for robust power integrity and thermal performance
Low-noise power delivery for reduced EMI
Push-button voltage selection with onboard LED indicators
USB-C 2.0 input
Supports up to 3A continuous current draw