ERIC WESOFF: JULY 13, 2011
The real value proposition for the IPC product is the reduction in labor hours, real estate, and infrastructure required for large commercial inverters. IPC gets this size and weight reduction by getting rid of magnetic steel and copper wire in transformers and inductors. I suspected that these parts were replaced with exotic materials like silicon carbide (SiC) or gallium nitride (GaN), but that's not the case. IPC uses conventional silicon IGBTs, but what's different is the topology -- what IPC calls “current-modulation” and advanced firmware controls, according to Bundschuh.