Power converters can be of different variations, for example, DC/DC, AC/DC or DC/AC depending on application or preference. When choosing a power converter several factors must be considered such as its input voltage with the benefits of a higher voltage outlined in paragraph 1 page 3, its ability to drive the chosen motor as this limitation determines the current and voltage ratings of the motor [7], cooling system as the converter is prone to getting hot during operation, longevity if used in conventional purposes but not so much of an issue on a racing bike, weight and volume of the converter are also critical in the overall bike design. The chosen power converter for this design is the DC/DC converter Hybrid pack ™ 2 from Infineon [12].

The device is robust and programmable which makes it versatile when being implemented in different applications. It is designed to be used as a Motor and/or generator inverter for Hybrid- and Electric Vehicles and Range Extenders providing 100kW of continuous power. Accommodates a 3-phase Six-Pack configuration of Trench-Field-Stop IGBT3 and matching emitter-controlled diodes as well as designed for a 150°C junction operation temperature. The chips are rated at a maximum of 800A/650V and includes a Pin-Fin baseplate for direct liquid cooling which significantly improves the thermal cycles capability extending the lifetime of the power module and enabling a very high-power density [12]. It is a popular choice amongst electric and hybrid vehicle manufacturers. Figure 3 below shows the layout of the module including its component parts [12] showing the electrical