JPS54116653A - Abnormal revolution preventive method of body of revolution - Google Patents
Abnormal revolution preventive method of body of revolutionInfo
- Publication number
- JPS54116653A JPS54116653A JP2346878A JP2346878A JPS54116653A JP S54116653 A JPS54116653 A JP S54116653A JP 2346878 A JP2346878 A JP 2346878A JP 2346878 A JP2346878 A JP 2346878A JP S54116653 A JPS54116653 A JP S54116653A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- revolution
- abnormal
- short
- making
- 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
- Protection Of Generators And Motors (AREA)
- Motor And Converter Starters (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
PURPOSE: To prevent the abnormal revolution of a motor due to abnormal voltage in the case when making a power source, by short-circuiting the output of an amplifier, which must be applied to the motor, when making the power source, by releasing short-circuit by a short-circuit releasing signal and by applying the output to the motor.
CONSTITUTION: Voltage at a point A becomes to a high level by applying a short- circuit releasing signal S after making a power source - after a condenser 5 is charged, a transistor 6 is in ON, a relay 8 is energized, its contact 8a is closed while a transistor is in OFF because a portion between a base and an emitter of the transistor 7 is short-circuited by means of the transistor 6, and a contact 9a is opened because a relay 9 is de-energized. Consequently, the voltage of OUT1 becomes equal to the voltage of OUT2, the output of an amplifier 1 is applied to a motor 3 through the contact 8a of a switching circuit 2 and the motor 3 is started. Thus, abnormal output voltage by the unstably action of the amplifier 1 in the case when making the power source is not applied to the motor 3, and the abnormal revolution of the motor in the case when making the power source can be prevented.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2346878A JPS54116653A (en) | 1978-03-03 | 1978-03-03 | Abnormal revolution preventive method of body of revolution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2346878A JPS54116653A (en) | 1978-03-03 | 1978-03-03 | Abnormal revolution preventive method of body of revolution |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54116653A true JPS54116653A (en) | 1979-09-11 |
Family
ID=12111352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2346878A Pending JPS54116653A (en) | 1978-03-03 | 1978-03-03 | Abnormal revolution preventive method of body of revolution |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54116653A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57199482A (en) * | 1981-05-30 | 1982-12-07 | Diesel Kiki Co Ltd | Drive circuit for motor for car |
JPS6082992U (en) * | 1983-11-09 | 1985-06-08 | 株式会社日立製作所 | motor control circuit |
-
1978
- 1978-03-03 JP JP2346878A patent/JPS54116653A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57199482A (en) * | 1981-05-30 | 1982-12-07 | Diesel Kiki Co Ltd | Drive circuit for motor for car |
JPH0116112B2 (en) * | 1981-05-30 | 1989-03-22 | Diesel Kiki Co | |
JPS6082992U (en) * | 1983-11-09 | 1985-06-08 | 株式会社日立製作所 | motor control circuit |
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