JPS5534809A - Driving circuit for dc commutatorless motor - Google Patents
Driving circuit for dc commutatorless motorInfo
- Publication number
- JPS5534809A JPS5534809A JP10623478A JP10623478A JPS5534809A JP S5534809 A JPS5534809 A JP S5534809A JP 10623478 A JP10623478 A JP 10623478A JP 10623478 A JP10623478 A JP 10623478A JP S5534809 A JPS5534809 A JP S5534809A
- Authority
- JP
- Japan
- Prior art keywords
- resistors
- stator coils
- current
- operation amplifiers
- rotor
- 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
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
PURPOSE: To reduce torque ripples by making the terminal volatges of current- sensing resistors connected in series with stator coils which supply power-amplifier outputs analogous to the voltages generated by Hall elements which sense the positions of magnetic poles of a rotor.
CONSTITUTION: The output terminals of Hall elements 5 and 51 which sense the positions of the magnetic poles of a rotor are connected to the inverted and non- inverted input terminals of operation amplifiers 7 and 71 through resistors 63 and 64, and 68 and 69, rewpectively. Stator coils L1 and L2 and current-sensing resistors 67 and 74 are connected to the outputs of the operation amplifiers 7 and 71 through power transistor Tr1 and Tr2, and Tr3 and Tr4. The connecting points of the current sensing resistors 67 and 74 and the stator coils L1 and L2 are connected to the inverted input terminals of the operation amplifiers 7 and 71 through feedback resistors 65 and 70.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10623478A JPS5534809A (en) | 1978-09-01 | 1978-09-01 | Driving circuit for dc commutatorless motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10623478A JPS5534809A (en) | 1978-09-01 | 1978-09-01 | Driving circuit for dc commutatorless motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5534809A true JPS5534809A (en) | 1980-03-11 |
Family
ID=14428423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10623478A Pending JPS5534809A (en) | 1978-09-01 | 1978-09-01 | Driving circuit for dc commutatorless motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5534809A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58212392A (en) * | 1982-06-04 | 1983-12-10 | Victor Co Of Japan Ltd | Dc commutatorless motor |
-
1978
- 1978-09-01 JP JP10623478A patent/JPS5534809A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58212392A (en) * | 1982-06-04 | 1983-12-10 | Victor Co Of Japan Ltd | Dc commutatorless motor |
JPH0524759B2 (en) * | 1982-06-04 | 1993-04-08 | Victor Company Of Japan |
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