Isolated power supply for IGBT gate driver
When do we use isolated power supply for driving each 6 IGBTs in an inverter? Some applications use bootstrap method which is not isolated. Using 6 isolated power supplies for an inverter with some extra peripherals may increase the overall cost. So, how should we choose which method to use by considering both performance and cost? Generally, which method is used in industrial application such as
variable frequency drive or UPS from 1hp to 100hp?