Solid state circuit-breaker switch devices

摘要

A solid state circuit-breaker switch (100;200) has a first solid state switch (102) coupled to a positive terminal (12) of a high voltage source, a second solid state switch (104) coupled to a return terminal (14) of the high voltage source, and a diode (18) connected between the switches (102, 104). A load (10) is coupled between the switches (102, 104) and in parallel with the diode (18) such that voltage transients across the load (10) are limited during turn of conditions. Related methods of operating the switch (100;200) during turn-on and turn-off events within rated current operation are described, as are turn-on and turn-off events in overload conditions.