Imported from GitHub: ahessling/ActiveLoad · commit 77ad16c · license MIT

Description

Small 12 Watt Active Load (dummy load) with STM32 microcontroller

README

Active Load with microcontroller

This repository contains the hardware design, the firmware and the GUI software of my active load device.

Features:

• Power supply from around 3.3V to 40V
• Should be powered by device under test
• Alternative power supply via USB
• Maximum dissipated power: Around 12W permanently at room temperature
• Maximum current: 3A
• Robust (protected from overvoltage, overcurrent and overtemperature conditions)
• Device under test should be connected via banana plugs or screw terminals
• A PC should be able to monitor the actual current and control the desired current via USB
• Small display to monitor actual and setpoint current
• Rotary encoder to change setpoint current
• Small (5×10 cm)
• Measure temperature at heatsink

The whole design process with a lot of details are written down in my blog.