Driving device for direct current motor

Abstract

Abstract PURPOSE:To form the drivng device capable of performing digital control by a method wherein the controlling processes fitted to running conditions are memorized and a thyristor turn-on pulse is generated by a digitally processed speed deviation signal based on the memorized procedures. CONSTITUTION:In the device with which the driving of a DC motor 11 is contorlled by a thyristor three-phase antiparallel inverter 14, current controlling procedures covering all conditions such as an accelerated operational condition, a decelerated operational condition, a steady operational condition and the like, are memorized in the sequence memory storage at a digital cntrolling section 22. The output signals sent from a tacho-generator 12, a current detector 13 and the like are inputted to an input processing section 19 after passing through a standardization circuit 18, and after they have been compared with the output of a command speed generating circuit 17, they are AD converted and inputted to a controlling section 22. At the controlling section 22, a timing signal is generated in accordance with the memorized procedures and te inverter 14 and a thyristor 15 to be used for a field is controlled through the intermediary of a striking pulse generating circuit 23 and a gate circuit 24.

Inventors

• 👤 Yoshitoku Kozai
• 👤 Yoshimoto Fujioka
• 👤 Shinichi Kono

Bibliographic Details