JPS54140912A - Semiconductor motor driver - Google Patents
Semiconductor motor driverInfo
- Publication number
- JPS54140912A JPS54140912A JP4834278A JP4834278A JPS54140912A JP S54140912 A JPS54140912 A JP S54140912A JP 4834278 A JP4834278 A JP 4834278A JP 4834278 A JP4834278 A JP 4834278A JP S54140912 A JPS54140912 A JP S54140912A
- Authority
- JP
- Japan
- Prior art keywords
- hall element
- signal
- motor
- output signal
- detecting
- 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 stabilize the driving of a semiconductor motor, by using an AC signal as a carrier for power for driving a rotor position detecting Hall element and amplitude-modulating the Hall element itself depending on the intensity of a magnetic field and detecting the output signal of the Hall element to produce a signal for the semiconductor motor.
CONSTITUTION: A current controlled by a transistor 7 is caused to flow through a motor winding 6. The Hall element 13 is used as a magnetism sensor 9 for detecting the rotational position of the motor. A modulated signal is obtained from the Hall element by the action of an oscillator 10. The output signal of the Hall element is removed of high-frequency component by a demodulator 11 and then applied to an AND circuit 20. A speed control circuit 15 comprises a frequency-to-voltage converter 16, a set-speed-to-voltage converter 17, a comparator 18 and a voltage- pulse-width modulator 19. The output signal of the modulator 19 is applied to the AND circuit 20 to produce a control signal for the transistor.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4834278A JPS54140912A (en) | 1978-04-25 | 1978-04-25 | Semiconductor motor driver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4834278A JPS54140912A (en) | 1978-04-25 | 1978-04-25 | Semiconductor motor driver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54140912A true JPS54140912A (en) | 1979-11-01 |
Family
ID=12800713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4834278A Pending JPS54140912A (en) | 1978-04-25 | 1978-04-25 | Semiconductor motor driver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54140912A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2656354C1 (en) * | 2017-02-20 | 2018-06-05 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тульский государственный университет" (ТулГУ) | Method for controlling ac converter-fed motor and a servo system for its implementation |
-
1978
- 1978-04-25 JP JP4834278A patent/JPS54140912A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2656354C1 (en) * | 2017-02-20 | 2018-06-05 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тульский государственный университет" (ТулГУ) | Method for controlling ac converter-fed motor and a servo system for its implementation |
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