IL38533A0 - Improvements in and relating to speed controls for electric motors - Google Patents
Improvements in and relating to speed controls for electric motorsInfo
- Publication number
- IL38533A0 IL38533A0 IL38533A IL3853372A IL38533A0 IL 38533 A0 IL38533 A0 IL 38533A0 IL 38533 A IL38533 A IL 38533A IL 3853372 A IL3853372 A IL 3853372A IL 38533 A0 IL38533 A0 IL 38533A0
- Authority
- IL
- Israel
- Prior art keywords
- relating
- electric motors
- speed controls
- controls
- speed
- Prior art date
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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
-
- 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
- H02P23/28—Controlling the motor by varying the switching frequency of switches connected to a DC supply and the motor phases
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/047—V/F converter, wherein the voltage is controlled proportionally with the frequency
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB325171 | 1971-01-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL38533A0 true IL38533A0 (en) | 1972-03-28 |
| IL38533A IL38533A (en) | 1974-11-29 |
Family
ID=9754812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL38533A IL38533A (en) | 1971-01-27 | 1972-01-10 | Speed controls for electric motors |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5047125A (en) |
| CA (1) | CA934001A (en) |
| CH (1) | CH551105A (en) |
| DE (1) | DE2203487B2 (en) |
| FR (1) | FR2124731A5 (en) |
| GB (1) | GB1338644A (en) |
| IL (1) | IL38533A (en) |
| IT (1) | IT946880B (en) |
| NL (1) | NL7201137A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2743605C2 (en) * | 1977-09-28 | 1982-03-25 | URANIT, Uran-Isotopentrennungs-Gesellschaft mbH, 5170 Jülich | Method and circuit arrangement for determining the work of reversal of magnetization of the rotor of a hysteresis motor |
| ATE22511T1 (en) * | 1982-08-31 | 1986-10-15 | Telemecanique Electrique | METHOD AND DEVICE FOR MEASURING THE SLIP OF AN ENGINE. |
| FR2546683B1 (en) * | 1983-05-24 | 1985-07-26 | Telemecanique Electrique | METHOD FOR REGULATING THE POWER SUPPLY OF ELECTRIC MOTORS AND DEVICE FOR IMPLEMENTING THE METHOD |
| CN1833834A (en) | 2005-03-18 | 2006-09-20 | 德昌电机股份有限公司 | Driving circuit for hair dressing device |
| GB2425413A (en) * | 2005-04-23 | 2006-10-25 | Johnson Electric Sa | Drive circuit for a hair clipper achieving constant speed |
-
1971
- 1971-01-27 GB GB325171A patent/GB1338644A/en not_active Expired
-
1972
- 1972-01-10 IL IL38533A patent/IL38533A/en unknown
- 1972-01-11 FR FR7200750A patent/FR2124731A5/fr not_active Expired
- 1972-01-13 CA CA132353A patent/CA934001A/en not_active Expired
- 1972-01-24 IT IT1975672A patent/IT946880B/en active
- 1972-01-25 CH CH106472A patent/CH551105A/en not_active IP Right Cessation
- 1972-01-26 DE DE19722203487 patent/DE2203487B2/en not_active Withdrawn
- 1972-01-27 NL NL7201137A patent/NL7201137A/xx unknown
- 1972-01-27 JP JP956672A patent/JPS5047125A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CH551105A (en) | 1974-06-28 |
| IL38533A (en) | 1974-11-29 |
| CA934001A (en) | 1973-09-18 |
| NL7201137A (en) | 1972-07-31 |
| JPS5047125A (en) | 1975-04-26 |
| IT946880B (en) | 1973-05-21 |
| DE2203487A1 (en) | 1972-12-21 |
| DE2203487B2 (en) | 1977-04-14 |
| AU3774272A (en) | 1973-07-12 |
| FR2124731A5 (en) | 1972-09-22 |
| GB1338644A (en) | 1973-11-28 |
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