Case Study: a European OEM supplying industrial charging cubicles achieves one shared certification path for eight charger configurations with Promwad

a European OEM supplying industrial charging cubicles reduces charger module cost by 19% with Promwad

A European manufacturer of industrial charging cubicles needed a new generation of high-power charger modules with eight configurations, all requiring a unified form factor, CAN communication, and a single EU certification path. Promwad was engaged to handle the full-cycle engineering from hardware architecture and firmware to mechanical design.

Promwad designed a unified platform architecture based on a Diode Rectifier and Phase-Shifted Full Bridge converter, enabling all eight variants to share one enclosure, documentation, and certification. The solution achieved a 19% cost reduction per kW and provided a scalable foundation for future product extensions.