Patent ID: 6619470
Filing Date: 2003-09-16
Classification: B65G

Abstract:
A system for controlling a vibratory conveyor having a conveyor pan mounted thereon, the system comprising:a drive coil for driving the vibratory conveyor with a vibrating motion; a sensing subsystem for detecting the vibrating motion of the conveyor pan on the vibratory conveyor driven by the drive coil; a controller coupled to the sensing subsystem for generating at least one control signal to be applied to the drive coil, the controller computing three intermediate timing positions in each period of a periodic digitized signal, the periodic digitized signal produced by the sensing subsystem from the detected vibrating motion; and a switching subsystem for switching a drive signal to the drive coil, the drive signal generated by the switching subsystem, the at least one control signal causing the drive signal to be switched to the drive coil from the first intermediate timing position to the third intermediate timing position in each period of the periodic digitized signal.