Patent ID: 8716885

Claim:
A switching assembly, comprising: a first terminal and a second terminal, wherein the first terminal is connected to a first power source and the second terminal is connected to a second power source; a first switch connected to the first terminal; a second switch connected to the second terminal; a rectifier bridge connected between the first switch and the second switch, wherein the rectifier bridge comprises a first silicon controlled rectifier (SCR) connected in parallel with a second SCR; a third switch connected between the first terminal and the second terminal; and a control unit configured to: selectively open and close the first switch, the second switch and the third switch, and selectively turn on and off the rectifier bridge; wherein the control unit is further configured to: cause the first switch to close, the second switch to close, the third switch to open, and the first and second SCRs to turn on based on power being delivered into the first terminal from the first power source, cause the third switch to open and the first and second SCRs to turn off based on a failure of delivery of power into the first terminal from the first power source, and cause the third switch to close, the first switch to open, and the second switch to open based on power being delivered into the first terminal from the first power source and based on a failure of delivery of power into the second terminal from the second power source.