JPS54145913A - Motor speed controller - Google Patents
Motor speed controllerInfo
- Publication number
- JPS54145913A JPS54145913A JP5487178A JP5487178A JPS54145913A JP S54145913 A JPS54145913 A JP S54145913A JP 5487178 A JP5487178 A JP 5487178A JP 5487178 A JP5487178 A JP 5487178A JP S54145913 A JPS54145913 A JP S54145913A
- Authority
- JP
- Japan
- Prior art keywords
- output
- thyristor
- production
- period
- motor
- 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 Ac Motors In General (AREA)
Abstract
PURPOSE: To vary the motor speed with a variable period of feeding AC power to the motor by means of a timer circuit which allows alternate repetition production and stoppage of the output and has a variable device for varying the duty cycle for the period of the production of the output so arranged in the controller as to vary the period for supplying AC power for the motor.
CONSTITUTION: In this controller, incorporated is a timer circuit 9 which allows alternate repetition of the production and stoppage of the output and has a variable device for varying the period of the production of the output and a switching transistor 8 which is adapted to detect the voltage across a thyristor 5 to repeat On and OFF alternately are incorporated in the controller. In addition, the collector of the transistor 8 is connected to the gate of the thyristor 5 and the collector of the transistor 8. In operation, the thyristor 8 is triggered only when the transistor 8 is OFF, that is, when the voltage across the thyristor 5 is almost zero while an output is produced from the circuit 9 to provide AC power for the motor.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5487178A JPS54145913A (en) | 1978-05-06 | 1978-05-06 | Motor speed controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5487178A JPS54145913A (en) | 1978-05-06 | 1978-05-06 | Motor speed controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54145913A true JPS54145913A (en) | 1979-11-14 |
Family
ID=12982644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5487178A Pending JPS54145913A (en) | 1978-05-06 | 1978-05-06 | Motor speed controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54145913A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6084990A (en) * | 1983-10-14 | 1985-05-14 | Mitsubishi Electric Corp | Controller of air conditioner |
JPS61240874A (en) * | 1985-04-17 | 1986-10-27 | Hitachi Ltd | Speed controller of motor |
JPS62239894A (en) * | 1986-04-11 | 1987-10-20 | Mitsubishi Electric Corp | Control circuit for energizing degree of fan motor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5049619A (en) * | 1973-09-06 | 1975-05-02 |
-
1978
- 1978-05-06 JP JP5487178A patent/JPS54145913A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5049619A (en) * | 1973-09-06 | 1975-05-02 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6084990A (en) * | 1983-10-14 | 1985-05-14 | Mitsubishi Electric Corp | Controller of air conditioner |
JPS61240874A (en) * | 1985-04-17 | 1986-10-27 | Hitachi Ltd | Speed controller of motor |
JPS62239894A (en) * | 1986-04-11 | 1987-10-20 | Mitsubishi Electric Corp | Control circuit for energizing degree of fan motor |
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