STMicroelectronics, Würth Elektronik demo high-performance power tool

Würth Elektronik and STMicroelectronics have jointly developed a demo using a Würth power tool. The design, which drives a low-voltage brushless DC motor, is suitable for handheld power-tool applications. The design also includes the necessary user interfaces required to control the motor’s trigger, speed and direction.

At the international tradeshow PCIM Europe, which took place from 9–11 May 2023 in Nuremberg, the power tool demo was exhibited at STMicroelectronics’ and Würth Elektronik’s booths.

The demo is based on the STDES-PTOOL3A reference design, in which the Gerber files, bill of materials, schematics and all other reference materials are downloadable from ST.com without charge. It showcases the capabilities of ST’s STM32G4 MCU and STDRIVE101 gate driver in powering six STL220N6F7 MOSFETs that all comply with Würth Elektronik’s Ferrite Bead (WE-CBF SMT EMI Suppression Ferrite Bead 74279271) and Power Inductor (WE-LHMI SMT Power Inductor 74437368330) and the benefits they bring to each application in performance, cost, quality and ease of implementation. The software code embedded in the STM32G4 was developed using the STM32 Motor Control software development kit (X-CUBE-MCSDK). The design shows real-world usage scenarios in battery-operated handheld power tools.

Over the past few years, STMicroelectronics and Würth Elektronik have established a collaboration developing reference designs that leverage the best of each company’s portfolios. By combining active components from ST with passive components from Würth Elektronik, the companies can offer ready-made turnkey or customisable solutions to customers.

“Working with Würth Elektronik, ST has shown its capability to work with partners to extract the best performance from its product offer and to jointly develop system solutions addressing the most challenging and complex application needs,” said Ricardo De Sa Earp, Executive Vice President, General-Purpose Microcontroller Sub-Group, STMicroelectronics.

“The development of a cost-effective, high-quality reference design that forms the basis for outstanding power tools is another example of the fruitful collaboration we share with STMicroelectronics,” said Alexander Gerfer, CTO, Würth Elektronik eiSos Group.