Control method for stepping motor with storage function, control device for stepping motor with storage function, and electric on-off valve using stepping motor with storage function

摘要

PPROBLEM TO BE SOLVED: To provide a method of controlling a stepping motor with an energy storage function that shortens charge time to an energy storage means and includes a power failure countermeasure function for quickly coping with power failure or the like, and to provide a control unit of a stepping motor with the energy storage function and an electric on/off valve using a stepping motor with the energy storage function. PSOLUTION: In the method of controlling a stepping motor with the energy storage function with a stepping motor and the energy storage means, the stepping motor is driven and controlled by a drive current, the storage means is charged by a prescribed charge current when the stepping motor is driven, and the energy storage means is charged by a superposition charge current larger than the charge current when the stepping motor is not driven. PCOPYRIGHT: (C)2011,JPO&INPIT