Patent ID: 11863013
Assignee: COMMSCOPE TECHNOLOGIES LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 6:
7. A circuit for selecting between a first power source and a second power source, the circuit comprising:
a first port configured to be coupled to a first power source;
a second port configured to be coupled to a second power source;
a third port configured to be coupled to provide power to a load;
first and second power field effect transistors (FET) coupled between the second port and the third port;
a third power FET coupled between the first port and the third port;
a dual ideal diode-OR controller coupled between the second and third power FETs to selectively turn on and off the second and third power FETs;
a switch coupled to a control input of the first power FET;
a controller, coupled to the switch, that selectively turns on and off the switch;
wherein the controller monitors the current at the first port and, when the current at the first port indicates a fault condition, turns on the switch so that power is transmitted by the first and second power transistors between the second port and the third port and when the fault condition is cleared, turns off the switch so that power is transmitted by the third power transistor between the first port and the third port.