Patent ID: 7875989

Claim:
An aircraft engine power distribution system, comprising: a generator driven by an aircraft engine, the generator configured to produce a generator power output when driven by the aircraft engine; a power distributor in electrical communication with the generator, the power distributor being operable to receive the generator power output and provide the generator power output to an engine controller as a primary power output to operate the engine controller, the power distributor having: a first power distributor input in electrical communication with the generator, a second power distributor input in electrical communication with an airframe power system battery, the airframe power system battery being operable to produce a battery power output, and a power distributor output in electrical communication with the first power distributor input and the second power distributor input, the power distributor being operable to (i) provide the generator power output, received at the first power distributor input, to the engine controller via the power distributor output as the primary power output to operate the engine controller and (ii) provide the battery power output, received at the second power distributor input, to the engine controller via the power distributor output as a back-up power output to operate the engine controller in the event of inoperability of the generator; and a controller electrically coupled to the first power distributor input and to the second power distributor input, the controller configured to: compare a voltage associated with the generator power output with a threshold voltage value; provide the generator power output to the engine controller via the power distributor output when the voltage associated with the generator power output is above the threshold voltage value; and provide a battery power output generated by an airframe power system battery to the engine controller via the power distributor output when the voltage associated with the generator power output falls below the threshold voltage value.