FR2389898A1 - - Google Patents
Info
- Publication number
- FR2389898A1 FR2389898A1 FR7813381A FR7813381A FR2389898A1 FR 2389898 A1 FR2389898 A1 FR 2389898A1 FR 7813381 A FR7813381 A FR 7813381A FR 7813381 A FR7813381 A FR 7813381A FR 2389898 A1 FR2389898 A1 FR 2389898A1
- Authority
- FR
- France
- Prior art keywords
- motor
- voltage
- variations
- load
- output signal
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
-
- 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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/40—Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/794,688 US4117408A (en) | 1977-05-06 | 1977-05-06 | Apparatus for indicating the loading of an electric ac motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2389898A1 true FR2389898A1 (OSRAM) | 1978-12-01 |
Family
ID=25163361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7813381A Withdrawn FR2389898A1 (OSRAM) | 1977-05-06 | 1978-05-05 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4117408A (OSRAM) |
| BE (1) | BE866762A (OSRAM) |
| ES (1) | ES469487A1 (OSRAM) |
| FR (1) | FR2389898A1 (OSRAM) |
| NL (1) | NL7804932A (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0401442A1 (en) * | 1988-06-08 | 1990-12-12 | Arex Electronics Corporation | Apparatus for automatic control of power factor of inductive load |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6042717B2 (ja) * | 1980-04-22 | 1985-09-24 | 三菱電機株式会社 | 誘導電動機用電力制御装置 |
| US4355274A (en) * | 1980-09-08 | 1982-10-19 | Bourbeau Frank J | Load responsive control system for constant speed induction motor |
| US4482852A (en) * | 1981-06-24 | 1984-11-13 | Westinghouse Electric Corp. | Motor slip controller for AC motors |
| US4420787A (en) * | 1981-12-03 | 1983-12-13 | Spring Valley Associates Inc. | Water pump protector |
| US4629960A (en) * | 1984-12-11 | 1986-12-16 | Energy Motor Control, Inc. | Induction motor controller |
| AU569646B2 (en) * | 1984-12-18 | 1988-02-11 | Toshiba, Kabushiki Kaisha | Detecting critical rotation speed of an induction motor |
| USRE33874E (en) * | 1986-05-22 | 1992-04-07 | Franklin Electric Co., Inc. | Electric motor load sensing system |
| US4972289A (en) * | 1987-10-07 | 1990-11-20 | Spring Valley Associates | Electric motor control and protective assembly for fluid pump operation |
| US4885655A (en) * | 1987-10-07 | 1989-12-05 | Spring Valley Associates, Inc. | Water pump protector unit |
| US4841404A (en) * | 1987-10-07 | 1989-06-20 | Spring Valley Associates, Inc. | Pump and electric motor protector |
| FR2629918B1 (fr) * | 1988-04-11 | 1990-08-17 | Schlumberger Ind Sa | Indicateur de la difference de phase de composantes sinusoidales de deux signaux eventuellement deformes par un filtrage non lineaire |
| FR2678375B1 (fr) * | 1991-06-27 | 1997-01-24 | Thomson Csf | Procede et dispositif de mesure d'efforts lies au vent sur un systeme tournant. |
| DE4440449C2 (de) * | 1994-11-14 | 1997-06-12 | Elero Antrieb Sonnenschutz | Verfahren und Vorrichtung zur Stillstandssteuerung von elektromotorisch betriebenen Rolläden oder dergleichen |
| DE102021200269A1 (de) * | 2021-01-13 | 2022-07-14 | Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg | Verfahren zum Betrieb einer Ladeklappe eines Kraftfahrzeugs |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3465256A (en) * | 1967-05-16 | 1969-09-02 | Honeywell Inc | Shaft position indicator circuit for a synchro-transmitter |
| US3588710A (en) * | 1968-08-05 | 1971-06-28 | Westinghouse Electric Corp | Digital phase detection circuitry |
| US3619750A (en) * | 1969-10-06 | 1971-11-09 | Reliance Electric Co | Speed compensation motor circuit utilizing real current component |
| US3753063A (en) * | 1972-06-13 | 1973-08-14 | Gen Electric | Stabilizing means for an a-c motor drive |
| US3872388A (en) * | 1972-08-31 | 1975-03-18 | Bendix Corp | Resolver to DC converter |
| US4041361A (en) * | 1975-10-14 | 1977-08-09 | General Electric Company | Constant torque induction motor drive system |
-
1977
- 1977-05-06 US US05/794,688 patent/US4117408A/en not_active Expired - Lifetime
-
1978
- 1978-05-05 FR FR7813381A patent/FR2389898A1/fr not_active Withdrawn
- 1978-05-05 ES ES469487A patent/ES469487A1/es not_active Expired
- 1978-05-05 BE BE187446A patent/BE866762A/xx unknown
- 1978-05-08 NL NL7804932A patent/NL7804932A/xx not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0401442A1 (en) * | 1988-06-08 | 1990-12-12 | Arex Electronics Corporation | Apparatus for automatic control of power factor of inductive load |
Also Published As
| Publication number | Publication date |
|---|---|
| BE866762A (fr) | 1978-09-01 |
| ES469487A1 (es) | 1979-03-16 |
| US4117408A (en) | 1978-09-26 |
| NL7804932A (nl) | 1978-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |