Evaluation board is a fully electronic solution

Available from Mouser, the STMicroelectronics STEVAL-ISF003V1 evaluation board is a fully electronic solution without the need for an inrush current limiter resistor and its bulky bypass electromechanical relay. The board allows limitation of the inrush current charging a DC bus capacitor. This inrush current limitation is based on a soft-start procedure of the mixed bridge diodes and SCRs rectifier using progressive phase control at board start-up.