JPS555035A - Brushless motor starting system - Google Patents
Brushless motor starting systemInfo
- Publication number
- JPS555035A JPS555035A JP7653278A JP7653278A JPS555035A JP S555035 A JPS555035 A JP S555035A JP 7653278 A JP7653278 A JP 7653278A JP 7653278 A JP7653278 A JP 7653278A JP S555035 A JPS555035 A JP S555035A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- inverter
- electromotive force
- detecting
- back electromotive
- 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 enable stable and exact starting of a brushless motor of type for detecting the position by speed electromotive force by detecting back electromotive force of the motor to thereby switch the synchronization of the motor.
CONSTITUTION: When a brushless motor is started, the input voltage of a voltage- controlled oscillator 10 is controlled to thereby gradually raise the drive frequency of an inverter 1 to thus accelerate the revolving speed of the motor 2. When the motor 2 reaches the speed that the position of the rotor may be detected by its back electromotive force, a signal is produced from a comparator 11 to shut off the gate signal from the inverter 1 at an inhibit circuit 15 to thereby stop the inverter 1. The induced voltage of the motor 2 is detected during the stopped period of the inverter 1 to synchronize it with the induced voltage of the motor 2 upon detection of the induced voltage to thereby restart the inverter. After the restarting of the inverter 1, the motor 2 is operated by the output of the position detector 3 of the type for detecting the back electromotive force.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7653278A JPS555035A (en) | 1978-06-26 | 1978-06-26 | Brushless motor starting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7653278A JPS555035A (en) | 1978-06-26 | 1978-06-26 | Brushless motor starting system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555035A true JPS555035A (en) | 1980-01-14 |
Family
ID=13607881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7653278A Pending JPS555035A (en) | 1978-06-26 | 1978-06-26 | Brushless motor starting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555035A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57173757A (en) * | 1981-03-26 | 1982-10-26 | Siemens Ag | Rotor angle measuring device for synchronizer |
JPS61135389A (en) * | 1984-12-04 | 1986-06-23 | Matsushita Electric Ind Co Ltd | Brushless motor drive device |
JPS61135378A (en) * | 1984-12-04 | 1986-06-23 | Matsushita Electric Ind Co Ltd | Brushless motor drive device |
DE3934139A1 (en) * | 1988-10-17 | 1990-04-19 | Brasil Compressores Sa | Electronic commutation control for brushless DC motor - uses RC filters connected to stator windings and voltage comparator for detecting rotor position |
JPH02211089A (en) * | 1989-02-06 | 1990-08-22 | Nippon Densan Corp | Start-up of sensorless brushless motor |
FR2644949A1 (en) * | 1989-03-27 | 1990-09-28 | Brasil Compressores Sa | METHOD AND ELECTRONIC CIRCUIT FOR CONTROLLING A BRUSHLESS CONTINUOUS CURRENT MOTOR |
JP2009055681A (en) * | 2007-08-24 | 2009-03-12 | Ricoh Co Ltd | Motor starting device and motor starting method |
US9160263B2 (en) | 2010-09-27 | 2015-10-13 | Whirlpool S.A. | System and method for monitoring and controlling a brushless electric motor |
EP3582389A1 (en) | 2018-06-11 | 2019-12-18 | Nidec Sankyo Corporation | Brushless dc motor control method and control device |
-
1978
- 1978-06-26 JP JP7653278A patent/JPS555035A/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57173757A (en) * | 1981-03-26 | 1982-10-26 | Siemens Ag | Rotor angle measuring device for synchronizer |
JPS61135389A (en) * | 1984-12-04 | 1986-06-23 | Matsushita Electric Ind Co Ltd | Brushless motor drive device |
JPS61135378A (en) * | 1984-12-04 | 1986-06-23 | Matsushita Electric Ind Co Ltd | Brushless motor drive device |
DE3934139A1 (en) * | 1988-10-17 | 1990-04-19 | Brasil Compressores Sa | Electronic commutation control for brushless DC motor - uses RC filters connected to stator windings and voltage comparator for detecting rotor position |
DE3934139C2 (en) * | 1988-10-17 | 1999-01-07 | Brasil Compressores Sa | Electronic control circuit for a brushless DC motor |
JPH02211089A (en) * | 1989-02-06 | 1990-08-22 | Nippon Densan Corp | Start-up of sensorless brushless motor |
FR2644949A1 (en) * | 1989-03-27 | 1990-09-28 | Brasil Compressores Sa | METHOD AND ELECTRONIC CIRCUIT FOR CONTROLLING A BRUSHLESS CONTINUOUS CURRENT MOTOR |
DE4009258C2 (en) * | 1989-03-27 | 1999-09-02 | Brasil Compressores Sa | Method and electronic control circuit for starting a brushless slip current motor |
JP2009055681A (en) * | 2007-08-24 | 2009-03-12 | Ricoh Co Ltd | Motor starting device and motor starting method |
US9160263B2 (en) | 2010-09-27 | 2015-10-13 | Whirlpool S.A. | System and method for monitoring and controlling a brushless electric motor |
EP3582389A1 (en) | 2018-06-11 | 2019-12-18 | Nidec Sankyo Corporation | Brushless dc motor control method and control device |
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