Patent ID: 7911079

Claim:
An electrical system architecture for a machine, comprising: a power source configured to generate DC power at a first voltage; a first DC bus configured to receive DC power at the first voltage from the power source; at least one medium voltage load configured to receive DC power at the first voltage from the first DC bus; a first DC/DC converter configured to receive DC power at the first voltage from the first DC bus and convert DC power at the first voltage to DC power at a second voltage, wherein the second voltage is greater than the first voltage; a second DC bus configured to receive DC power at the second voltage from the first DC/DC converter; a high voltage power storage device configured to receive DC power at the second voltage from the second DC bus and deliver DC power at the second voltage to the second DC bus; a propulsion motor configured to receive DC power at the second voltage from the second DC bus; an accessory motor configured to receive DC power at the second voltage from the second DC bus; and a second DC/DC converter configured to receive DC power at the first voltage from the first DC bus and convert DC power at the first voltage to DC power at a third voltage, wherein the third voltage is less than the first voltage, and the first DC/DC converter and the second DC/DC converter are configured to divide DC power at the first voltage from the power source.