A DC power conversion controller in the few-hundred-watt range, built around an STM32F334 — a micro that’s genuinely well-suited to power applications thanks to its high-resolution timers and ADCs.
The firmware synchronizes ADC sampling to measure bus voltage and current, applies filtering, and computes instantaneous power for regulation and monitoring. MPPT control closes the loop by adjusting the boost converter’s operating point through PWM duty cycle updates (~48 V class). Soft-start, duty limiting, and fault-triggered shutdown are all handled natively.
On the protection side, a dump load path can be activated to clamp bus overvoltage and safely absorb excess energy. Telemetry goes out over Modbus/RS485: measurements, operating state, fault codes — all exposed for supervision.