NL7003962A - - Google Patents
Info
- Publication number
- NL7003962A NL7003962A NL7003962A NL7003962A NL7003962A NL 7003962 A NL7003962 A NL 7003962A NL 7003962 A NL7003962 A NL 7003962A NL 7003962 A NL7003962 A NL 7003962A NL 7003962 A NL7003962 A NL 7003962A
- 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
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
- H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
- H02P5/51—Direct ratio control
Landscapes
- 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)
- Control Of Stepping Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80844369A | 1969-03-19 | 1969-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7003962A true NL7003962A (de) | 1970-09-22 |
Family
ID=25198769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7003962A NL7003962A (de) | 1969-03-19 | 1970-03-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3621352A (de) |
| DE (1) | DE2012510C3 (de) |
| FR (1) | FR2037227B1 (de) |
| GB (1) | GB1306294A (de) |
| NL (1) | NL7003962A (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7111888A (de) * | 1971-08-28 | 1973-03-02 | ||
| US4330752A (en) * | 1979-05-14 | 1982-05-18 | Optimetrix Corporation | Position control circuit |
| US4386301A (en) * | 1979-10-26 | 1983-05-31 | Matsushita Electric Industrial Co., Ltd. | Digital speed control system for sewing machines |
| KR850001705B1 (ko) * | 1981-06-10 | 1985-11-26 | 야마시다 도시히꼬 | 재봉틀 속도 설정장치 |
| JPS57206288A (en) * | 1981-06-11 | 1982-12-17 | Matsushita Electric Ind Co Ltd | Speed setting device for sewing machine |
| JPS57208881A (en) * | 1981-06-15 | 1982-12-22 | Matsushita Electric Ind Co Ltd | Driving system for sewing machine |
| US4940927A (en) * | 1985-08-29 | 1990-07-10 | Century Electric, Inc. | Three-phase A-C speed control for variable torque motor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3110853A (en) * | 1958-06-05 | 1963-11-12 | Westinghouse Electric Corp | Electrical control apparatus |
| US3308387A (en) * | 1963-09-18 | 1967-03-07 | Ball Brothers Res Corp | Clock synchronizer |
| US3448402A (en) * | 1965-10-28 | 1969-06-03 | Westinghouse Electric Corp | Phase locked oscillator |
| FR1469000A (fr) * | 1965-12-08 | 1967-02-10 | Thomson Houston Comp Francaise | Perfectionnements aux procédés et aux dispositifs de synchronisation |
| US3337814A (en) * | 1966-08-23 | 1967-08-22 | Collins Radio Co | Phase comparator for use in frequency synthesizer phase locked loop |
| US3474320A (en) * | 1967-11-02 | 1969-10-21 | Gen Electric | Variable frequency and voltage electric power inverter utilizing an auxiliary source of fixed-magnitude commutating voltage |
| FR1583556A (de) * | 1968-05-16 | 1969-11-14 | ||
| US3500226A (en) * | 1968-05-17 | 1970-03-10 | Bell Telephone Labor Inc | Apparatus for reducing the static offset in a phase-locked oscillator |
-
1969
- 1969-03-19 US US808443A patent/US3621352A/en not_active Expired - Lifetime
-
1970
- 1970-03-12 GB GB1184970A patent/GB1306294A/en not_active Expired
- 1970-03-17 DE DE2012510A patent/DE2012510C3/de not_active Expired
- 1970-03-19 NL NL7003962A patent/NL7003962A/xx unknown
- 1970-03-19 FR FR707009859A patent/FR2037227B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1306294A (de) | 1973-02-07 |
| DE2012510A1 (de) | 1970-10-01 |
| US3621352A (en) | 1971-11-16 |
| FR2037227B1 (de) | 1974-03-01 |
| DE2012510B2 (de) | 1981-03-12 |
| DE2012510C3 (de) | 1981-12-10 |
| FR2037227A1 (de) | 1970-12-31 |