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Portable Buck-Boost Converter (0.5–30V Test Bench)
IP Report
Print Profile(1)
0.2mm layer, 6 walls, 25% infill
Designer
4.3 h
1 plate
Open in Bambu Studio
Boost
1
4
0
0
1
0
Released
Bill of Materials
List other parts
- step down converter LM2596 x 1:
- Audio terminal connectors x 2:
- ON/OFF rocker switch x 1:
- 5V Radial Cooling Fan x 1:
Description
This project is a compact and portable DIY test bench power supply built around a Bosch 18V battery platform. It uses a buck-boost converter module to provide a wide adjustable output voltage, making it ideal for electronics testing, prototyping, and field work.
Designed for convenience and durability, the unit integrates power control, cooling, and standard output terminals into a single 3D-printed enclosure.
Key Features
- Input: Bosch 18V Li-Ion battery
- Output voltage: 0.5V – 30V adjustable
- Output current: up to 4A
- Buck-boost topology (stable output even when battery voltage drops)
- Integrated ON/OFF switch
- Built-in cooling fan (forced airflow)
- Digital display for voltage/current monitoring
- Compact and portable design
- Standard banana-style output terminals
Use Cases
- Electronics testing and debugging
- Portable lab power supply
- Field work (no need for mains power)
- DIY and hobby projects
- Battery-powered prototyping
BOM:
- Buck-Boost Converter Module (ZK-4KX or similar)
- 18V Bosch Li-Ion battery
- DC cooling fan (size depending on your design)
- ON/OFF rocker switch
- Banana terminal connectors
- Wires (sized for 4A current)
- Screws (M3 recommended)
License
This user content is licensed under a
Creative Commons Attribution-Noncommercial-Share Alike
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