a gate drive element 152 154 156 158 160 or 162 hereinafter collectively referred to as gate drive elements 152 162 these gate drive elements 152 162 may provide a signal to the gates of the respective thyristor elements 140 150 associated therewith to activate the thyristor elements 140 150 thus when the thyristor elements 140 150 are activated by the gate drive elements 152 162 current may flow through voltage lines 164 166 and 168 in one embodiment the activation of the gate drive elements 152 162 is controlled by a controller 170 this controller 170 may include one or more microprocessors such as one or more u201c general purpose u201d microprocessors one or more special purpose microprocessors and or asics or some combination thereof furthermore the controller 170 may execute one or more algorithms which may be stored on a tangible non transitory machine readable medium such as volatile memory e g random access memory and or non volatile memory e g read only memory this memory may be internal to or directly coupled to the controller 170 moreover the controller 170 may be coupled to various elements via signal lines 172 174 and 176 for example signal line 172 allows the controller 170 to receive signals from a sensor 178 these signals received from the sensor 178 may indicate for example that power has been measured passing from the grid 104 towards the crowbar circuit 120 accordingly one step of an algorithm that may be executed by the controller 170 is.