EmbeddedSystemClass / Bench_Power_Supply

A design for a custom bench top power supply for prototyping.

Bench Power Supply PCB

This repo contains project files for a bench top power supply I designed for my home lab.

Requirements:

• Small for crammed work spaces
• Adjustable and designed to store values on each power cycle
• 2 layer board - V2.0 bumped to 4 layer
• Digitally controlled - no mechanical parts
• Clear annunciators
• Uses an external AC-DC converter
• At least a 2A max load
• Cover most logic levels
• Possibly have preset buttons

Built With

• KiCad - Schematic capture and layout V1.0
• VS Code - Used to develop firmware V1.0
• Fusion 360 - Used to design 3-D models for packages
• Altium Designer - Schematic capture and layout V2.0
• STM32CubeIDE - Used to develop firmware V2.0

Notes:

• The PCB uses a 5/5mil DRC constraint
• The top of the PCB acts as the product face plate
• Non-standard footprint 3-D models have been provided in the STEP file format

To Do

• Connect OLED reset line to a GPIO
  
• Add reset pull up to MCU
• ANDed interrupt for buttons
• Add config flash storage
• Bigger display?
• Reduce inductor footprint
• Add debouncing either in hardware or firmware, ideally both
• Add a reinit function

Authors

• Aditya Sehgal - PCB Layout, Firmware, 3-D Modelling - Adsehgal