Stepping motor control circuit, semiconductor device, and analog electronic timepiece
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United States of America Patent
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Aug 8, 2017
Issued Date -
N/A
app pub date -
Jun 10, 2015
filing date -
Jul 30, 2014
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Abstract
A stepping motor control circuit includes a drive pulse generation section that generates forward-rotation drive pulses that drive a stepping motor stepwise in a forward rotation direction and reverse-rotation drive pulses that drive the stepping motor stepwise in a reverse rotation direction and a forward/reverse rotation switching control section that switches the drive pulses outputted to the stepping motor from one of the forward-rotation drive pulses and the reverse-rotation drive pulses to the other, and the forward/reverse rotation switching control section switches the drive pulses outputted to the stepping motor from one of the forward-rotation drive pulses and the reverse-rotation drive pulses to the other and then provide a predetermined period before the other drive pulses are outputted to the stepping motor.
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