Motor controller electronics arrangements with actively cooled feeder cables

A method of cooling a feeder cable, comprising:

• at a housing enclosing a solid-state switch array, a cold plate arranged within the housing and in thermal communication with the solid-state switch array, and a feeder cable electrically connected to the solid-state switch array and having a coolant jacket extending thereabout that is separated from the solid-state switch array by the housing and in liquid communication with the cold plate,
• generating heat with supply power flowing through the feeder cable;
• flowing liquid coolant to the coolant jacket from the cold plate;
• communicating heat from the feeder cable to the liquid coolant as the liquid coolant traverses the coolant jacket;
• and
• returning the liquid coolant to the cold plate.