NL7201137A - - Google Patents
Info
- Publication number
- NL7201137A NL7201137A NL7201137A NL7201137A NL7201137A NL 7201137 A NL7201137 A NL 7201137A NL 7201137 A NL7201137 A NL 7201137A NL 7201137 A NL7201137 A NL 7201137A NL 7201137 A NL7201137 A NL 7201137A
- Authority
- NL
- Netherlands
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 (1)
| Publication Number | Publication Date |
|---|---|
| NL7201137A true NL7201137A (de) | 1972-07-31 |
Family
ID=9754812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7201137A NL7201137A (de) | 1971-01-27 | 1972-01-27 |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5047125A (de) |
| CA (1) | CA934001A (de) |
| CH (1) | CH551105A (de) |
| DE (1) | DE2203487B2 (de) |
| FR (1) | FR2124731A5 (de) |
| GB (1) | GB1338644A (de) |
| IL (1) | IL38533A (de) |
| IT (1) | IT946880B (de) |
| NL (1) | NL7201137A (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2743605C2 (de) * | 1977-09-28 | 1982-03-25 | URANIT, Uran-Isotopentrennungs-Gesellschaft mbH, 5170 Jülich | Verfahren und Schaltungsanordnung zum Bestimmen der Ummagnetisierungsarbeit des Läufers eines Hysteresemotors |
| DE3273469D1 (en) * | 1982-08-31 | 1986-10-30 | Telemecanique Electrique | Method and device for measuring the slip of a motor |
| FR2546683B1 (fr) * | 1983-05-24 | 1985-07-26 | Telemecanique Electrique | Procede de regulation de l'alimentation des moteurs electriques et dispositif de mise en oeuvre du procede |
| CN1833834A (zh) | 2005-03-18 | 2006-09-20 | 德昌电机股份有限公司 | 用于理发器的驱动电路 |
| 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/it active
- 1972-01-25 CH CH106472A patent/CH551105A/de not_active IP Right Cessation
- 1972-01-26 DE DE19722203487 patent/DE2203487B2/de not_active Withdrawn
- 1972-01-27 JP JP956672A patent/JPS5047125A/ja active Pending
- 1972-01-27 NL NL7201137A patent/NL7201137A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2203487A1 (de) | 1972-12-21 |
| FR2124731A5 (de) | 1972-09-22 |
| IL38533A (en) | 1974-11-29 |
| AU3774272A (en) | 1973-07-12 |
| CA934001A (en) | 1973-09-18 |
| IT946880B (it) | 1973-05-21 |
| DE2203487B2 (de) | 1977-04-14 |
| JPS5047125A (de) | 1975-04-26 |
| CH551105A (de) | 1974-06-28 |
| GB1338644A (en) | 1973-11-28 |
| IL38533A0 (en) | 1972-03-28 |