Patent ID: 8508181

Claim:
An adjustable frequency drive comprising: a base including a first portion and a second portion; an active front end converter disposed on said base, said active front end converter comprising: an input, an output, and a plurality of first electronic switches electrically connected between said input and said output; and an inverter disposed on said base, said inverter comprising: an input electrically connected to the output of said active front end converter, an output, a plurality of capacitors disposed on the first portion of said base and electrically connected to the input of said inverter, a plurality of second electronic switches disposed on the second portion of said base and electrically connected between the input and the output of said inverter, and a heat pipe assembly, wherein said inverter is structured to provide a single, three-phase output structure, wherein the input of said active front end converter is structured to receive a medium voltage, and wherein said adjustable frequency drive is cantilevered from an end of a chiller, without increasing a height of said adjustable frequency drive.