JPS579286A - Driving circuit for commutatorless dc motor - Google Patents
Driving circuit for commutatorless dc motorInfo
- Publication number
- JPS579286A JPS579286A JP8293080A JP8293080A JPS579286A JP S579286 A JPS579286 A JP S579286A JP 8293080 A JP8293080 A JP 8293080A JP 8293080 A JP8293080 A JP 8293080A JP S579286 A JPS579286 A JP S579286A
- Authority
- JP
- Japan
- Prior art keywords
- starting
- time
- motor
- current flowing
- phase half
- 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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/20—Arrangements for starting
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
PURPOSE:To improve the starting performance of a driving circuit for a self-control type commutatorless DC motor by automatically switching the current flowing angle of a 3-phase half-wave rectifying circuit for driving the motor at 180 deg. at the starting time and at 120 deg. at the ordinarily operating time, thereby reducing the variation width of the starting torque. CONSTITUTION:The rotary position detection signals detected by Hall elements 1A-1C are shaped and amplified in a rectangular waveform by arithmetic amplifiers 2A-2C, and the signals from the amplifiers are inputted to driving transistors 3A-3C and switching circuits 5A-5C respectively. The switching circuits 5A- 5C close at the prescribed delay time with respect to a power swich, and have functions to be OFF at the starting time and ON at the ordinarily operating time, and performs 3-phase half-wave rectification of 120 deg. of current flowing angle at the ordinarily operating time and 3-phase half-wave rectification of 180 deg. of current flowing angle at the starting time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8293080A JPS579286A (en) | 1980-06-20 | 1980-06-20 | Driving circuit for commutatorless dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8293080A JPS579286A (en) | 1980-06-20 | 1980-06-20 | Driving circuit for commutatorless dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS579286A true JPS579286A (en) | 1982-01-18 |
Family
ID=13787944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8293080A Pending JPS579286A (en) | 1980-06-20 | 1980-06-20 | Driving circuit for commutatorless dc motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS579286A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61165913A (en) * | 1984-12-21 | 1986-07-26 | イー・アイ・デユポン・ドウ・ヌムール・アンド・カンパニー | Processor for cable having a plurality of conductors arrayedin one or more layers |
| US4689532A (en) * | 1985-05-07 | 1987-08-25 | Howlett James F | Ferritic sensor, self-controlled synchronous motor |
-
1980
- 1980-06-20 JP JP8293080A patent/JPS579286A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61165913A (en) * | 1984-12-21 | 1986-07-26 | イー・アイ・デユポン・ドウ・ヌムール・アンド・カンパニー | Processor for cable having a plurality of conductors arrayedin one or more layers |
| JPH0546765B2 (en) * | 1984-12-21 | 1993-07-14 | Du Pont | |
| US4689532A (en) * | 1985-05-07 | 1987-08-25 | Howlett James F | Ferritic sensor, self-controlled synchronous motor |
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