JPS54115720A - Pulse motor drive system - Google Patents
Pulse motor drive systemInfo
- Publication number
- JPS54115720A JPS54115720A JP2249378A JP2249378A JPS54115720A JP S54115720 A JPS54115720 A JP S54115720A JP 2249378 A JP2249378 A JP 2249378A JP 2249378 A JP2249378 A JP 2249378A JP S54115720 A JPS54115720 A JP S54115720A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- current
- rising
- produce
- signal
- 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
- 230000000630 rising effect Effects 0.000 abstract 4
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
Landscapes
- Control Of Stepping Motors (AREA)
Abstract
PURPOSE:To sharpen the rising of current and to improve the self-starting frequency by generating pulse signals with predetermined time width from the signals produced from a rotor position detector at the switching time point of the driving pulse then performing constant current amplification on said pulse signals to produce the driving signal. CONSTITUTION:Driving signal generating circuit 4 is excited at every rising and falling time point of clock pulse signal to produce the driving signals phi1, phi2 while the signal SA from the rotor position detector 1 is provided to the pulse generating circuit 2 to produce short width pulse at every switching time point of each exciting phase. Then said pulse signal is provided to the current control circuit 3 to control the drive circuit 5 to produce large exciting current having sharp rising. Since large current is supplied for predetermined time during the switching thenafter the current is reduced, the rising characteristic is improved while the power consumption is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2249378A JPS54115720A (en) | 1978-02-28 | 1978-02-28 | Pulse motor drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2249378A JPS54115720A (en) | 1978-02-28 | 1978-02-28 | Pulse motor drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54115720A true JPS54115720A (en) | 1979-09-08 |
Family
ID=12084249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2249378A Pending JPS54115720A (en) | 1978-02-28 | 1978-02-28 | Pulse motor drive system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54115720A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5681448U (en) * | 1979-11-29 | 1981-07-01 | ||
| JPS5942506A (en) * | 1982-08-31 | 1984-03-09 | Sankyo Seiki Mfg Co Ltd | Control device for stepping motor for driving lens |
-
1978
- 1978-02-28 JP JP2249378A patent/JPS54115720A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5681448U (en) * | 1979-11-29 | 1981-07-01 | ||
| JPS5942506A (en) * | 1982-08-31 | 1984-03-09 | Sankyo Seiki Mfg Co Ltd | Control device for stepping motor for driving lens |
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