Movement And Electronic Watch
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Mar 10, 2022
app pub date -
Sep 9, 2021
filing date -
Sep 9, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A stepping motor, a driver, a current detection circuit, a first driving circuit configured to output a first driving signal to the driver, a rotation detection circuit configured to detect rotation of the rotor, and a second driving circuit configured to output a second driving signal selected from plural kinds of the second driving signals with different supply times of the driving current supplied to the coil, and configured to output a correction driving pulse that is preset to the driver when, after outputting the second driving signal, the rotation detection circuit detects that the rotor is not rotating, are included, and a resistance value R[Ω] of the coil and the driving voltage V [V] of the stepping motor satisfy 900 V[Ω]≤R≤1100 V[Ω], and 1.8 [V]≤V≤2.4 [V].
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