Apparatus and method for driving a stepping motor

Details Apparatus and method for driving a stepping motor Apparatus and method for driving a stepping motor

2007-03-20

2007-03-20

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Open-loop stepping motor control systems

C318S685000, C318S254100

Reexamination Certificate

active

10448491

ABSTRACT:
The present invention relates to an apparatus for driving a stepping motor, including a plurality of push-pull circuits each of which is capable of controlling a push state in which a current is supplied to a terminal and a pull state in which a current is drawn through the terminal and which are connected to coils to operate the stepping motor utilizing the bipolar driving. In the apparatus of the present invention, at least one of the push-pull circuits is connected to a common terminal having one ends of the coils of different phases connected thereto, thereby reducing the number of circuits and driving lines.

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