JPS5586364A - Brushless motor - Google Patents
Brushless motorInfo
- Publication number
- JPS5586364A JPS5586364A JP15866778A JP15866778A JPS5586364A JP S5586364 A JPS5586364 A JP S5586364A JP 15866778 A JP15866778 A JP 15866778A JP 15866778 A JP15866778 A JP 15866778A JP S5586364 A JPS5586364 A JP S5586364A
- Authority
- JP
- Japan
- Prior art keywords
- phases
- phase
- position detectors
- width
- 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
Abstract
PURPOSE:To eliminate deenergization periods without overlapping the energization periods of stator windings of all phases with one another, by performing prescribed operation of partly overlapped signals obtained from a plurality of position detectors placed at unequal spacings. CONSTITUTION:As for a three-phase motor with phases U, V, W, three position detectors 2U, 2V, 2W are so nonuniformly placed around a rotor 1 made of a permanent magnet that mechanical angles of 110 deg., 130 deg. and 120 deg. are defined between the position detectors. The output signals of the position detectors are applied to a shaping circuit. The output signals are so amplified and shaped that the width of the signal of the phase U is 2pi/3, the fall-down position of the signal of the phase V is 4pi/3 and the width of the signal of the phase W is 2pi/3 or more. The signals shaped by the shaping circuit are entered into an operation circuit, which performs operation in order of priority of the phases U, V, W to generate signals of 2pi/3 in width for all the phases.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15866778A JPS5586364A (en) | 1978-12-25 | 1978-12-25 | Brushless motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15866778A JPS5586364A (en) | 1978-12-25 | 1978-12-25 | Brushless motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5586364A true JPS5586364A (en) | 1980-06-30 |
Family
ID=15676712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15866778A Pending JPS5586364A (en) | 1978-12-25 | 1978-12-25 | Brushless motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5586364A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4532461A (en) * | 1983-11-01 | 1985-07-30 | Kollmorgen Technologies Corporation | Rotor position sensor error detection |
-
1978
- 1978-12-25 JP JP15866778A patent/JPS5586364A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4532461A (en) * | 1983-11-01 | 1985-07-30 | Kollmorgen Technologies Corporation | Rotor position sensor error detection |
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