JPS648899A - Step motor drive circuit - Google Patents

Step motor drive circuit

Info

Publication number
JPS648899A
JPS648899A JP16303387A JP16303387A JPS648899A JP S648899 A JPS648899 A JP S648899A JP 16303387 A JP16303387 A JP 16303387A JP 16303387 A JP16303387 A JP 16303387A JP S648899 A JPS648899 A JP S648899A
Authority
JP
Japan
Prior art keywords
exciting
current
pulse signal
drive circuit
transistor
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
JP16303387A
Other languages
Japanese (ja)
Inventor
Kousaku Tsuguta
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP16303387A priority Critical patent/JPS648899A/en
Publication of JPS648899A publication Critical patent/JPS648899A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To control exciting current flowing through respective exciting coils through a simple circuitry, by carrying out ON/OFF control based on first and second pulse signals. CONSTITUTION:A transistor T5 feeds exciting current to respective exciting coils M1-M4. The transistor T5 makes ON/OFF controls based on a first pulse signal DS1 being produced synchronously with exciting timing and having pulse width corresponding to an interval required by the exciting current for reaching to a setting level and a second high frequency pulse signal CLK having narrower pulse width when the first pulse signal DS1 is not produced. Consequently, exciting current flowing through respective exciting coils can be controlled through simple circuitry without requiring a current detecting circuit or a current control circuit.
JP16303387A 1987-06-30 1987-06-30 Step motor drive circuit Pending JPS648899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16303387A JPS648899A (en) 1987-06-30 1987-06-30 Step motor drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16303387A JPS648899A (en) 1987-06-30 1987-06-30 Step motor drive circuit

Publications (1)

Publication Number Publication Date
JPS648899A true JPS648899A (en) 1989-01-12

Family

ID=15765909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16303387A Pending JPS648899A (en) 1987-06-30 1987-06-30 Step motor drive circuit

Country Status (1)

Country Link
JP (1) JPS648899A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5889873A (en) * 1996-03-11 1999-03-30 Tdk Corporation Piezoelectric acoustic transducer
KR101137330B1 (en) * 2009-07-10 2012-04-19 가부시키가이샤 도쿄 웰드 Method and apparatus for switching excitation current of stepping motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5889873A (en) * 1996-03-11 1999-03-30 Tdk Corporation Piezoelectric acoustic transducer
KR101137330B1 (en) * 2009-07-10 2012-04-19 가부시키가이샤 도쿄 웰드 Method and apparatus for switching excitation current of stepping motor

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