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Home / Development, Learning, Evaluation & Industrial Control Boards / STM32 Digital Control Buck Development Board Synchronous Step-Down Switching Power Supply Learning Design DCDC Converter

Attributes

Brand -
Category Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards
Origin -
Microcontroller STM32F103C8T6
Input Voltage Range 6V - 24V DC
Output Voltage Range 1.2V - 5.5V Adjustable
Max Output Current 3A Continuous
Switching Frequency 100kHz - 500kHz Configurable
Control Method Digital Voltage Mode Control
Communication Interface UART, SWD, I2C
Protection Features Over-current, Over-voltage, Thermal Shutdown
PCB Dimensions 80mm x 50mm
Included Accessories USB Cable, Jumper Wires, Schematic PDF

6 reviews

A

Anonymous

Mar 28, 2026

Rating: 4/5

Great hardware, steep learning curve

The build quality is solid and the synchronous rectification works efficiently. However, be prepared to read the datasheet thoroughly if you are new to SMPS design.

A

Anonymous

Mar 28, 2026

Rating: 5/5

Professional grade learning board

I use this to train junior engineers on switching power supply fundamentals. It bridges the gap between theory and practical implementation perfectly.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Robust and reliable

Ran this at full load for 24 hours straight with no thermal issues. The heat dissipation design is very effective for such a compact board.

A

Anonymous

Mar 06, 2026

Rating: 4/5

Good value for money

For the price, you get a lot of functionality. The only downside is that the silk screen labels are a bit small, but the schematic clears everything up.

A

Anonymous

Mar 03, 2026

Rating: 5/5

Excellent university project tool

Used this for my final year thesis on adaptive control algorithms. The ability to tweak PID parameters via UART in real-time was a game changer.

A

Anonymous

Mar 03, 2026

Rating: 5/5

Perfect for learning power electronics

This board is exactly what I needed to understand digital control loops in buck converters. The STM32 code examples are well-commented and easy to modify.

5 FAQ

Q: Does this board come with pre-flashed firmware?

A: Yes, it comes with a basic demo firmware that sets up a stable 3.3V output. Source code is provided so you can modify the control logic as needed.

Q: What debugger interface is supported?

A: The board features a standard SWD (Serial Wire Debug) header compatible with ST-Link V2 and J-Link debuggers for easy programming and debugging.

Q: Can this handle an input voltage of 24V continuously?

A: Yes, the components are rated for up to 24V input. However, we recommend ensuring adequate airflow if operating at maximum current and voltage simultaneously.

Q: Is the output voltage adjustable without reprogramming?

A: In the default demo mode, there is a potentiometer for coarse adjustment. For precise digital control, you will need to send commands via the UART interface.

Q: Can I change the switching frequency via software?

A: Yes, the switching frequency is fully configurable through the STM32 firmware. You can adjust it within the 100kHz to 500kHz range to optimize efficiency or component size.

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