Performance comparison of gallium nitride (GaN) in DC-DC converter circuit

Solar power system is a free sources of sustainable power unlike fossil fuels, and inexhaustible. Converters can shift the level of voltage from one to another through switches. Which is very important for solar power system. Transistor plays a vital role in any converter circuit because the overall efficiency of a circuit depends on the switching losses. Transistor works as switch in a converter circuit. In last few years it has been proven that Gallium Nitride (GaN) based switches have benefits over silicon switches. Using GaN technology reduces the cost of design and the construction of transistors. The GaN based transistor has the ability to operate at a high frequency with low switching power loss. This study is based on a boost converter circuit, where three different transistor model were used to compare their output and efficiency. The output was measured based on simulation conducted on LTSpice platform. Then comes to a decision as to which transistor can give better performance.