JPS55109196A - Step motor driving circuit - Google Patents

Step motor driving circuit

Info

Publication number
JPS55109196A
JPS55109196A JP1540979A JP1540979A JPS55109196A JP S55109196 A JPS55109196 A JP S55109196A JP 1540979 A JP1540979 A JP 1540979A JP 1540979 A JP1540979 A JP 1540979A JP S55109196 A JPS55109196 A JP S55109196A
Authority
JP
Japan
Prior art keywords
comparator
voltage
output
resistor
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.)
Granted
Application number
JP1540979A
Other languages
Japanese (ja)
Other versions
JPS5719679B2 (en
Inventor
Masahiro Yuasa
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP1540979A priority Critical patent/JPS55109196A/en
Publication of JPS55109196A publication Critical patent/JPS55109196A/en
Publication of JPS5719679B2 publication Critical patent/JPS5719679B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To save the power consumption of a driving transistor in a step motor driving circuit by reducing the feedback resistance value of a resistor connected between the input and the output of the standard voltage of a comparator for comparing the current detecting voltage of phase windings of a step motor with the standard voltage at overdrive time. CONSTITUTION:A transistor T1 is conducted by applying a drive pulse DP thereto to flow a current through phase winding 1. The winding current is detected by a detecting resistor RI, and compared with a standard voltage Vr by a comparator 2. While the winding current detecting voltage is lower than the voltage Vr, the output of the comparator 2 is high level to conduct a transistor T2. When both voltage become equal, the output of the comparator 2 becomes low level to turn the transistor T2 off. There is relationship of Rf1>Rf2 between the feedback resistors Rf1 and Rf2. When the motor is stopped, the resistor Rf1 is connected to shorten the output inverting period of the comparator 2. When the motor is overdriven, the resistor Rf2 is connected to lengthen the output inverting period.
JP1540979A 1979-02-15 1979-02-15 Step motor driving circuit Granted JPS55109196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1540979A JPS55109196A (en) 1979-02-15 1979-02-15 Step motor driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1540979A JPS55109196A (en) 1979-02-15 1979-02-15 Step motor driving circuit

Publications (2)

Publication Number Publication Date
JPS55109196A true JPS55109196A (en) 1980-08-22
JPS5719679B2 JPS5719679B2 (en) 1982-04-23

Family

ID=11887932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1540979A Granted JPS55109196A (en) 1979-02-15 1979-02-15 Step motor driving circuit

Country Status (1)

Country Link
JP (1) JPS55109196A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57111100U (en) * 1980-12-26 1982-07-09
JPS5883599A (en) * 1981-11-11 1983-05-19 Automob Antipollut & Saf Res Center Driving device for step motor
US4500824A (en) * 1984-05-21 1985-02-19 General Electric Company Method of commutation and converter circuit for switched reluctance motors
JPS60102894A (en) * 1983-10-28 1985-06-07 Fujitsu Ltd Drive system for pulse motor
CN109274297A (en) * 2018-10-15 2019-01-25 广东宝莱特医用科技股份有限公司 A kind of regulating power consumption circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57111100U (en) * 1980-12-26 1982-07-09
JPS5883599A (en) * 1981-11-11 1983-05-19 Automob Antipollut & Saf Res Center Driving device for step motor
JPS60102894A (en) * 1983-10-28 1985-06-07 Fujitsu Ltd Drive system for pulse motor
JPS6323757B2 (en) * 1983-10-28 1988-05-18 Fujitsu Ltd
US4500824A (en) * 1984-05-21 1985-02-19 General Electric Company Method of commutation and converter circuit for switched reluctance motors
CN109274297A (en) * 2018-10-15 2019-01-25 广东宝莱特医用科技股份有限公司 A kind of regulating power consumption circuit

Also Published As

Publication number Publication date
JPS5719679B2 (en) 1982-04-23

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