JPS5698378A - Driving circuit of synchronous motor - Google Patents
Driving circuit of synchronous motorInfo
- Publication number
- JPS5698378A JPS5698378A JP155480A JP155480A JPS5698378A JP S5698378 A JPS5698378 A JP S5698378A JP 155480 A JP155480 A JP 155480A JP 155480 A JP155480 A JP 155480A JP S5698378 A JPS5698378 A JP S5698378A
- Authority
- JP
- Japan
- Prior art keywords
- time
- driving
- starting
- ordinary
- flip
- 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
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
PURPOSE:To improve the efficiency of a synchronous motor by connecting a plurality of driving coils in parallel with each other at the time of starting and providing different driving coil connection at the ordinary driving time, thereby driving with less torque than starting time at the time of ordinary driving. CONSTITUTION:When a pulse is applied to a terminal P at the time of starting the motor, a frequency divider D2 and a flip-flop F are reset, the output from the flip- flop becomes ''1'', which closes a switching circuit S1, and thus the driving coils L1, L2 are connected in parallel between the output terminals (a) and (b) of a drive pulse generator A. When the time reaching the ordinary drive is elapsed, an output is produced from the frequency divider D2 and causes the flip-flop F to be set. Thus, the switching circuit S1 is opened, and thus only the driving coil L1 is connected between the terminals (a) and (b). Accordingly, torque of 1/2 of that at the time of starting is provided at the ordinary driving time, and preferable efficiency can be provided without consuming wasteful current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP155480A JPS5698378A (en) | 1980-01-10 | 1980-01-10 | Driving circuit of synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP155480A JPS5698378A (en) | 1980-01-10 | 1980-01-10 | Driving circuit of synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5698378A true JPS5698378A (en) | 1981-08-07 |
Family
ID=11504739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP155480A Pending JPS5698378A (en) | 1980-01-10 | 1980-01-10 | Driving circuit of synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5698378A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988006377A1 (en) * | 1987-02-12 | 1988-08-25 | Mitsubishi Denki Kabushiki Kaisha | Engine starter and charger |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5268465A (en) * | 1975-12-04 | 1977-06-07 | Nikko Seiki Kk | Method and device for driving synchronous motor for digital clock |
-
1980
- 1980-01-10 JP JP155480A patent/JPS5698378A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5268465A (en) * | 1975-12-04 | 1977-06-07 | Nikko Seiki Kk | Method and device for driving synchronous motor for digital clock |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988006377A1 (en) * | 1987-02-12 | 1988-08-25 | Mitsubishi Denki Kabushiki Kaisha | Engine starter and charger |
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