Title:
STEPPING MOTOR CONTROL CIRCUIT, MOVEMENT AND ANALOG ELECTRONIC CLOCK
Document Type and Number:
Japanese Patent JP2016187304
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To achieve low power consumption.SOLUTION: A stepping motor 105 divides a detection section for detecting a rotating state of a rotor into a first segment, a second segment and a third segment while the rotor is being rotated by a main driving pulse; divides the second segment into a front segment and a rear segment; and changes a pulse-down frequency of the main driving pulse when a pattern of a determination value indicating whether or not an induction signal exceeding a predetermined reference threshold value has been detected in each segment thereof is a predetermined pattern.SELECTED DRAWING: Figure 1
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Inventors:
MANAKA SABURO
SAKUMOTO KAZUSANE
SAKUMOTO KAZUSANE
Application Number:
JP2016141492A
Publication Date:
October 27, 2016
Filing Date:
July 19, 2016
Export Citation:
Assignee:
SEIKO INSTR INC
International Classes:
H02P8/02; G04C3/14
Domestic Patent References:
| JP2014054107A | 2014-03-20 | |||
| JP2010220461A | 2010-09-30 |
Attorney, Agent or Firm:
Noriaki Uchino
Nobuyuki Kimura
Toru Tanikawa
Nobuyuki Kimura
Toru Tanikawa
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