The solar inverter is a power electronic device that connects the solar panels and the grid, and is one of the key devices in the entire solar power generation system; it mainly converts the direct current generated by the solar panels into the alternating current that can be connected to the grid through the power module. It is the "heart" of the solar power generation system; the inverter also undertakes important functions such as detecting the operating status of components, power grids, and cables, communicating with the outside world, and system safety steward.

In recent years, the upsurge of the solar industry has continued; with the continuous growth of solar installed capacity, the demand for IGBTs has also risen rapidly; as an important part of solar inverters, IGBTs are widely used in solars and other fields.

As a power device, IGBT plays the role of power conversion and energy transmission in the inverter, and is the heart of the inverter.

The core utilization of IGBTs in solar inverters is reflected in four aspects: drive protection, over current/short circuit protection, over temperature protection, and mechanical fault protection.