JPS5558794A - Driving system for step motor - Google Patents

Driving system for step motor

Info

Publication number
JPS5558794A
JPS5558794A JP13234578A JP13234578A JPS5558794A JP S5558794 A JPS5558794 A JP S5558794A JP 13234578 A JP13234578 A JP 13234578A JP 13234578 A JP13234578 A JP 13234578A JP S5558794 A JPS5558794 A JP S5558794A
Authority
JP
Japan
Prior art keywords
current
capacitor
exciting coil
voltage
time
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
JP13234578A
Other languages
Japanese (ja)
Inventor
Yukihiro Nagabori
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.)
Jeco Corp
Original Assignee
Jeco 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 Jeco Corp filed Critical Jeco Corp
Priority to JP13234578A priority Critical patent/JPS5558794A/en
Publication of JPS5558794A publication Critical patent/JPS5558794A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To reduce the vibration at the time of rotor stop and enhance motor efficiency by supplying a driving current, having a pulse-wave form which decreases at a specified slope form after rising, to the exciting coil of a step motor. CONSTITUTION:When a switching circuit 7 is turned on by a control pulse signal, the charges stored in a capacitor C is flown to an exciting coil 2. In this case, if a current IZM that flows through the exciting coil 2 at the time of application of a rated voltage VZ is greater than a voltage-retaining current IZ that is determined by a Zener diode D2 and resistor R at the rated voltage VZ, both the current from the capacitor c and the current from a battery 5 flow. On the other hand, since the driving current decreases gradually in a waveform as shown in the Figure due to the decrease in the capacitor voltage and the high impedance of the Zener diode D2, the vibration of a rotor is reduced in a short time.
JP13234578A 1978-10-27 1978-10-27 Driving system for step motor Pending JPS5558794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13234578A JPS5558794A (en) 1978-10-27 1978-10-27 Driving system for step motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13234578A JPS5558794A (en) 1978-10-27 1978-10-27 Driving system for step motor

Publications (1)

Publication Number Publication Date
JPS5558794A true JPS5558794A (en) 1980-05-01

Family

ID=15079162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13234578A Pending JPS5558794A (en) 1978-10-27 1978-10-27 Driving system for step motor

Country Status (1)

Country Link
JP (1) JPS5558794A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62182099U (en) * 1986-05-12 1987-11-18
JPH0582695A (en) * 1991-09-19 1993-04-02 Nec Kyushu Ltd Lead frame for semiconductor device and manufacture of semiconductor device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889768A (en) * 1972-02-25 1973-11-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889768A (en) * 1972-02-25 1973-11-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62182099U (en) * 1986-05-12 1987-11-18
JPH0582695A (en) * 1991-09-19 1993-04-02 Nec Kyushu Ltd Lead frame for semiconductor device and manufacture of semiconductor device

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