Importance

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Abstract

A driving device for a stepping motor capable of providing positioning accuracy with low power consumption includes elements such as a setting circuit for setting the number of driving steps of the stepping motor, a storage circuit for storing a first driving table containing energizing amount data for each step at which the stepping motor is energized and driven in a micro-step manner, and a second driving table containing energizing amount data different in value from the first driving table, and a driving circuit for energizing the stepping motor during the driving steps set in number by said setting circuit according to the energizing amount data of the first or second driving table, and the and the driving circuit selects either the first or second driving table according to the number of remaining steps to be driven.

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First Claim