In high voltage power conversion, there are three main systems: rectifier (AC to DC converter), DC/DC converter, and inverter (DC to AC converter). In those three systems, there are seven locations for isolated current sensing. This section discusses the best high-side power supply options for each sensing location and the recommended device from the isolated converters device family. Table 2-1 splits the high-side power supplies into two sections: gate driver present and no gate driver present. When a gate driver supply can be used, TI recommends using a gate driver design for the low-cost design. By leveraging the gate driver supply, it is possible to achieve a total design isolated current sensing cost that is lower than competing technologies such as hall, CT, and Rogowski, even when considering the external shunt resistor. When a gate driver supply can not be used, TI recommends using an integrated DC/DC supply option (AMC33xx devices) for a simple design.