JPS5479412A - Electronic clock use step motor - Google Patents

Electronic clock use step motor

Info

Publication number
JPS5479412A
JPS5479412A JP14751077A JP14751077A JPS5479412A JP S5479412 A JPS5479412 A JP S5479412A JP 14751077 A JP14751077 A JP 14751077A JP 14751077 A JP14751077 A JP 14751077A JP S5479412 A JPS5479412 A JP S5479412A
Authority
JP
Japan
Prior art keywords
pulse
step motor
quick
frequency dividing
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14751077A
Other languages
Japanese (ja)
Inventor
Masaaki Bandai
Akira Torisawa
Jun Ueda
Shuji Otawa
Masaharu Shida
Katsuhiko Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP14751077A priority Critical patent/JPS5479412A/en
Publication of JPS5479412A publication Critical patent/JPS5479412A/en
Pending legal-status Critical Current

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  • Electromechanical Clocks (AREA)

Abstract

PURPOSE: To enable performing a positive, reverse and quick running control of an electronic clock use step motor electronically by using pulses of different pulse width, period and polarity.
CONSTITUTION: Frequency dividing a standard signal by an oscillating circuit 301 in a frequency dividing circuit 302, by combining outputs of each frequency dividing stage a step motor driving pulse is obtained. A controlling (for example reverse quick running) instruction is given from outside, a necessary one is selected among composed outputs of a pulse composing circuit 303 and is transmitted to a step motor driving circuit 305. For example in case of positive quick running a comparatively long width pulse is applied in a comparatively slow period, and in case of reverse quick running a comparatively short width reversed pulse is applied in a quick period. In this manner a rotor position detecting element customary necessitated becomes not necessary and is proper for integrated circuitting.
COPYRIGHT: (C)1979,JPO&Japio
JP14751077A 1977-12-08 1977-12-08 Electronic clock use step motor Pending JPS5479412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14751077A JPS5479412A (en) 1977-12-08 1977-12-08 Electronic clock use step motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14751077A JPS5479412A (en) 1977-12-08 1977-12-08 Electronic clock use step motor

Publications (1)

Publication Number Publication Date
JPS5479412A true JPS5479412A (en) 1979-06-25

Family

ID=15431977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14751077A Pending JPS5479412A (en) 1977-12-08 1977-12-08 Electronic clock use step motor

Country Status (1)

Country Link
JP (1) JPS5479412A (en)

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