Patent ID: 7408316
Filing Date: 2008-08-05
Classification: B41P,G05B,H02P,Y10T

Abstract:
1. In a position controller for a motor, the motor having an advance control input for moving the motor in an advance direction and a retard input for moving the motor in a retard direction, a method comprising: receiving a control input; counting a first advance digital current, in response to the control input, a number of cycles of a reference clock that equal a predetermined advance period of time (TG generating a first motor advance signal to be applied to the motor advance control input for a time period at least equal to TG counting a retard digital current, corresponding to a count, after expiration of time TG generating a motor retard signal to be applied to the motor retard control input for a time period at least equal to TG counting a second advance digital current, after expiration of time TG generating a second motor advance signal to be applied to the motor advance control input for a time period at least equal to TG