JPS55127898A - Step-motor driving circuit - Google Patents
Step-motor driving circuitInfo
- Publication number
- JPS55127898A JPS55127898A JP3593279A JP3593279A JPS55127898A JP S55127898 A JPS55127898 A JP S55127898A JP 3593279 A JP3593279 A JP 3593279A JP 3593279 A JP3593279 A JP 3593279A JP S55127898 A JPS55127898 A JP S55127898A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- switch
- time
- rotor
- coil
- 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
Links
Landscapes
- Control Of Stepping Motors (AREA)
Abstract
PURPOSE:To make the constitution of a driving circuit simple and to make a signal- sending switch to be an A-contact switch by adding a parallel circuit comprising a capacitor and a discharge resistor between exciting generating magnetic fields of reverse directions to each other in a step motor. CONSTITUTION:When a signal-sending switch 8 is closed, a current flows as shown by the solid line in the Figure, a capacitor 10 is charged and a magnetic field is generated as shown by O-A-B on the time axis; and a rotor is advanced by one step. At the time B, a receiving switch 7 is switched to a coil 4, and a magnetic field is generated in a coil 4; and the rotor 2 is advanced by one step. The capacitor 10 is discharged through a discharge capacitor 11 during the period B-C. The time constant is set so that it is sufficiently longer than the time for the one-step rotation of the rotor 2. At the time C, the receiving switch 7 is switched to the coil 5, but restarting during the period C-D is not actuated owing to the discharge of the capacitor 10. During the period D-F, the signal-sending switch 8 is opened, and the capacitor 10 is completely discharged.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3593279A JPS5855760B2 (en) | 1979-03-24 | 1979-03-24 | Step motor drive circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3593279A JPS5855760B2 (en) | 1979-03-24 | 1979-03-24 | Step motor drive circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55127898A true JPS55127898A (en) | 1980-10-03 |
JPS5855760B2 JPS5855760B2 (en) | 1983-12-12 |
Family
ID=12455793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3593279A Expired JPS5855760B2 (en) | 1979-03-24 | 1979-03-24 | Step motor drive circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5855760B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01137472U (en) * | 1988-03-15 | 1989-09-20 |
-
1979
- 1979-03-24 JP JP3593279A patent/JPS5855760B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5855760B2 (en) | 1983-12-12 |
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