Voltage/Current-sensing-less Short-circuit Protection and Localization Method for Power Devices/Modules

A voltage/current-sensing-less short-circuit (SC) protection for power devices that can identify which device has a SC fault within power modules or converters. It does NOT require sensing voltage or current magnitude of power device to detect and localize the SC fault, therefore it is low cost and enhances the noise immunity and reliability. This method can be applied to all switching power devices including muti-phase converters, modular converters, multilevel converters, and modular multilevel converters.