INTELLIGENT CURRENT LIMITING FOR SOLID-STATE SWITCHING

Systems, methods, techniques and apparatuses of high current protection are disclosed. One exemplary embodiment is a power system comprising a solid-state circuit breaker (110) including a solid-state switching device (113), an energy dissipation branch (114), an assistive branch (116), and a controller (120). The energy dissipation branch is coupled in parallel with the solid-state switching device and includes an energy dissipation device (115). The assistive branch is coupled in parallel with the solid-state switching device and includes a resistor (119), an inductor (118), and a galvanic isolation switching device (117) coupled together in series. The controller is configured to determine the solid-state circuit breaker is conducting a high magnitude current, select a continuous current limiting mode or an intermittent current limiting mode, and operate the solid-state switching device based on the selected current limiting mode.Fig. 1