| 摘要 |
PROBLEM TO BE SOLVED: To provide electronic equipment that achieves the rotation detection of a rotor by chopping brake control, and can reliably and accurately carries out the rotation detection. SOLUTION: The electronic equipment is equipped with a stepping motor 7, a motor control signal formation circuit 4 that functions as a rotor rotation detection means for converting a current induced in a coil by the free vibration of a rotor to a voltage value after the output of a motor drive pulse of the rotation of the rotor according to the voltage value, and a motor drive control means for driving and controlling the motor 7 based on rotation detection information DE1 and DE2, and a motor driver 5. A rotor rotation-detecting apparatus has a first detection means for detecting the voltage value of the same direction current having the same direction as a driving current, a second detection means that is actuated after the voltage value of the same direction current is detected by the first detection means and detects the voltage value of a reverse current, and a first detection timing adjustment means for adjusting the detection start timing of the first detection means. COPYRIGHT: (C)2003,JPO |
