Patent ID: 6774600
Filing Date: 2004-08-10
Classification: H02P

Abstract:
A matrix-connected driver in combination with and for controlling multiple multi-phase motors, comprising:a logic circuit separately engaged to control a set of buffers; each buffer being separately controllable to either source a power source to a connecting line or to sink said connecting line to ground; said buffer connecting lines being divided into rows and columns electrically connected to phases of multi-phase motors; a first of said buffers being electrically engaged to a first row; a second of said buffers being electrically engaged to a second row; a third of said buffers being electrically engaged to a first column; a fourth of said buffers being electrically engaged to a second column; at least two multi-phase motors, a first motor and a second motor, each having at least two phases, an A phase and a B phase; said A phase of said first motor being engaged between said first row and said first column; said B phase of said first motor being engaged between said second row and said first column; said A phase of said second motor being engaged between said first row and said second column; said B phase of said second motor being engaged between said second row and said second column; and said logic circuit programmed to sequentially operate pairs of buffers, either one of said first or second buffers and one of said third or fourth buffers to either source or sink said columns and rows to individually power phases of a selected of one of said motors to cause said selected motor to rotate.