JPS5518879A - Motor driving circuit - Google Patents
Motor driving circuitInfo
- Publication number
- JPS5518879A JPS5518879A JP9197878A JP9197878A JPS5518879A JP S5518879 A JPS5518879 A JP S5518879A JP 9197878 A JP9197878 A JP 9197878A JP 9197878 A JP9197878 A JP 9197878A JP S5518879 A JPS5518879 A JP S5518879A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- driving circuit
- motor driving
- depending
- employing
- 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 obtain a more simplified motor driving circuit without employing a phase inverter by turning a first switching element ON and OFF depending on a rotating-position-sensing signal and turning a second switching element ON and OFF depending on the sensed signal whose pahse is opposite.
CONSTITUTION: The rotating angle of the rotor of a motor is sensed by a Hall element 1 to which the operating current of the specified value is supplied from a power supply +V. An electromotive force is generated at the output terminals of the element 1 by the operating current and the magnetic flux of the magnetic poles of a rotor magnet. The positive and negative output terminals of the element 1 are connected to an operation amplifier 2, wherein is formed a current switching signal A, which is varied between high and low levels every 180° of electric angles. The signal A is supplied to the base of a transister TR T1 which is turned ON and OFF depending on the signal A. In this constitution, the more simplified motor driving circuit can be obtained without employing a phase inverter.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9197878A JPS5518879A (en) | 1978-07-27 | 1978-07-27 | Motor driving circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9197878A JPS5518879A (en) | 1978-07-27 | 1978-07-27 | Motor driving circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5518879A true JPS5518879A (en) | 1980-02-09 |
Family
ID=14041585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9197878A Pending JPS5518879A (en) | 1978-07-27 | 1978-07-27 | Motor driving circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5518879A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57138585A (en) * | 1981-02-20 | 1982-08-26 | Tokico Ltd | Automatic work machine |
DE3221993A1 (en) * | 1981-06-12 | 1982-12-30 | Sony Corp., Tokyo | CONTROLLING A BRUSHLESS DC MOTOR |
-
1978
- 1978-07-27 JP JP9197878A patent/JPS5518879A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57138585A (en) * | 1981-02-20 | 1982-08-26 | Tokico Ltd | Automatic work machine |
JPH0229478B2 (en) * | 1981-02-20 | 1990-06-29 | Tokico Ltd | |
DE3221993A1 (en) * | 1981-06-12 | 1982-12-30 | Sony Corp., Tokyo | CONTROLLING A BRUSHLESS DC MOTOR |
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