JPS56125998A - Step motor driving circuit - Google Patents
Step motor driving circuitInfo
- Publication number
- JPS56125998A JPS56125998A JP2854780A JP2854780A JPS56125998A JP S56125998 A JPS56125998 A JP S56125998A JP 2854780 A JP2854780 A JP 2854780A JP 2854780 A JP2854780 A JP 2854780A JP S56125998 A JPS56125998 A JP S56125998A
- Authority
- JP
- Japan
- Prior art keywords
- control signal
- time
- step motor
- signal
- outputted
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P8/00—Arrangements for controlling dynamo-electric motors of the kind having motors rotating step by step
- H02P8/14—Arrangements for controlling speed or speed and torque
- H02P8/16—Reducing energy dissipated or supplied
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Stepping Motors (AREA)
Abstract
PURPOSE:To reduce the power consumption of a step motor at the time of stopping the motor by interrupting an energization signal when a control signal for energizing two adjacent exciting coils is not inputted for a predetermined time. CONSTITUTION:Exciting coils 12 of phases A-D are provided in a step motor 8, and the coils 12 are energized upon conduction of transistors 14-17. Energization signals SA-SD from a controller 23 are applied to the bases of the transistors 14- 17. When the control signal S1 is inputted to the controller 23, energization signals SD, SA are, for example, outputted and next control signal S1 is then inputted, the energization signals SA, SB are outputted. When the control signal S1 is not produced for a predetermined time, an interrupt command signal S2 is outputted from a clock unit 24. Thus, any one signal of the energization signals SA-SD is interrupted. With the above constitution, the power consumption at the time of stopping an electronic typewriter or the like which is not necessary to hold a rotor at a predetermined position at the time of stopping the motor can be reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2854780A JPS56125998A (en) | 1980-03-05 | 1980-03-05 | Step motor driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2854780A JPS56125998A (en) | 1980-03-05 | 1980-03-05 | Step motor driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56125998A true JPS56125998A (en) | 1981-10-02 |
Family
ID=12251678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2854780A Pending JPS56125998A (en) | 1980-03-05 | 1980-03-05 | Step motor driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56125998A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59144398A (en) * | 1983-02-02 | 1984-08-18 | West Electric Co Ltd | Drive controller for stepping motor |
| JPS60160398A (en) * | 1984-01-27 | 1985-08-21 | Copal Co Ltd | Exciting system of stepping motor |
| JPS6188798A (en) * | 1984-10-04 | 1986-05-07 | Matsushita Electric Ind Co Ltd | Controller for stepping motor |
-
1980
- 1980-03-05 JP JP2854780A patent/JPS56125998A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59144398A (en) * | 1983-02-02 | 1984-08-18 | West Electric Co Ltd | Drive controller for stepping motor |
| JPS60160398A (en) * | 1984-01-27 | 1985-08-21 | Copal Co Ltd | Exciting system of stepping motor |
| JPS6188798A (en) * | 1984-10-04 | 1986-05-07 | Matsushita Electric Ind Co Ltd | Controller for stepping motor |
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