Implementation of diagnostics functions in the IGBT drivers, part 2. — HW implementation

Diagnostics methods of power inverters are usually based on using measurements of feedback electric quantities. This paper proposes ways of direct diagnostics of power semiconductors parts in its drivers. In the first part of the article, there were proposed and described methods of direct power semiconductor´s diagnostics for usage in voltage source inverters. Circuits for the diagnosis are assumed in power transistor driver. This paper will focus on hardware requirements, which flows from proposed solution, especially on microcontroller, control units and data collection form IGBT drivers. The description of hardware solutions for measurement of diagnostics quantities is introduced in the first part of the paper.