JPS56141790A - Speed controlling device for electricmotor - Google Patents
Speed controlling device for electricmotorInfo
- Publication number
- JPS56141790A JPS56141790A JP4497780A JP4497780A JPS56141790A JP S56141790 A JPS56141790 A JP S56141790A JP 4497780 A JP4497780 A JP 4497780A JP 4497780 A JP4497780 A JP 4497780A JP S56141790 A JPS56141790 A JP S56141790A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- pulses
- motor
- command
- speeds
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/0077—Characterised by the use of a particular software algorithm
Abstract
PURPOSE:To obtain a constant control characteristic extending over all speeds control range by a method wherein speed pulses with pulse widths inversely proportional to the speeds of the electricmotor are generated and speed command pulses are counted during the period of generating said speed pulses. CONSTITUTION:In the speed controlling device 100 of a sewing machine motor, a speed pulse generator 4 generates the speed pulses with the pulse widths inversely proportional to the speeds of the motor 10, a command pulse generator 2 generates the command pulses in frequencies which are proportional to the command speeds of the motor 10 and sufficiently higher than frequencies of the above-mentioned pulses. During the generation of the speed pulses, the command pulses are counted by a counting means 3, variations of the electric power supplied to the motor 10 are calculated by an operation controlling means 1 according to the differences of the counted contents and a fixed value determined in advance, and the motor 10 is driven at constant speed by changing the power supply in a driving circuit 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4497780A JPS56141790A (en) | 1980-04-04 | 1980-04-04 | Speed controlling device for electricmotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4497780A JPS56141790A (en) | 1980-04-04 | 1980-04-04 | Speed controlling device for electricmotor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56141790A true JPS56141790A (en) | 1981-11-05 |
JPH0117356B2 JPH0117356B2 (en) | 1989-03-30 |
Family
ID=12706522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4497780A Granted JPS56141790A (en) | 1980-04-04 | 1980-04-04 | Speed controlling device for electricmotor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56141790A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6369476A (en) * | 1986-09-09 | 1988-03-29 | Ricoh Co Ltd | Servo-motor control circuit in optical system for duplicator |
JPH01238483A (en) * | 1988-03-16 | 1989-09-22 | Shimadzu Corp | Rotating speed controller for motor |
JP2010172118A (en) * | 2009-01-23 | 2010-08-05 | Sanyo Electric Co Ltd | Motor speed controller |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51138314U (en) * | 1975-04-28 | 1976-11-08 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5513689A (en) * | 1978-07-17 | 1980-01-30 | Brother Ind Ltd | Speed controller of motor |
-
1980
- 1980-04-04 JP JP4497780A patent/JPS56141790A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51138314U (en) * | 1975-04-28 | 1976-11-08 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6369476A (en) * | 1986-09-09 | 1988-03-29 | Ricoh Co Ltd | Servo-motor control circuit in optical system for duplicator |
JPH01238483A (en) * | 1988-03-16 | 1989-09-22 | Shimadzu Corp | Rotating speed controller for motor |
JP2010172118A (en) * | 2009-01-23 | 2010-08-05 | Sanyo Electric Co Ltd | Motor speed controller |
Also Published As
Publication number | Publication date |
---|---|
JPH0117356B2 (en) | 1989-03-30 |
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