Patent ID: 7038421

Claim:
A system for control of a plurality of motors comprising: an inverter comprising at least three legs including a first leg, a second leg, and third leg, with each leg comprising two series switching devices configured to receive a command from a controller; wherein said inverter is in operable communication with a voltage source and a controller; a first motor operably connected to an inverter at a common terminal of said switching devices for said first leg and at a common terminal of said switching devices for said second leg; a second motor operably connected to said inverter at said common terminal of said switching devices for maid second leg and at a common tenninal of said switching devices for said third leg; wherein outer terminals of said switching devices for each of said first leg, said second leg and said third leg are operably connected to said voltage source; and wherein control terminals for said switching devices are in operable communication with maid controller and each switching device is responsive to a command therefrom, said controller executing a process for controlling said first motor and said second motor wit an error arbiter function.