BE542688A - - Google Patents
Info
- Publication number
- BE542688A BE542688A BE542688DA BE542688A BE 542688 A BE542688 A BE 542688A BE 542688D A BE542688D A BE 542688DA BE 542688 A BE542688 A BE 542688A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
- G05F1/42—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices discharge tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Ac-Ac Conversion (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL338916X | 1954-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE542688A true BE542688A (US07922777-20110412-C00004.png) |
Family
ID=19784631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE542688D BE542688A (US07922777-20110412-C00004.png) | 1954-11-11 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2905880A (US07922777-20110412-C00004.png) |
| BE (1) | BE542688A (US07922777-20110412-C00004.png) |
| CH (1) | CH338916A (US07922777-20110412-C00004.png) |
| DE (1) | DE1110284B (US07922777-20110412-C00004.png) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1438406B2 (de) * | 1961-06-13 | 1970-05-21 | Brown, Boveri & Cie. AG, 6800 Mannheim-Käfertal | Umrichter zur Frequenzumwandlung von Dreiphasen-Wechselströmen |
| US3297937A (en) * | 1963-02-13 | 1967-01-10 | Benchimol Augusto | Frequency converter utilizing magnetic amplifiers and scr's |
| US3309605A (en) * | 1963-08-19 | 1967-03-14 | Tektronix Inc | Frequency converter wherein an astable oscillator is free running at high frequency input signals and is synchronized to low frequency input signals |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1394565A (en) * | 1917-08-24 | 1921-10-25 | John E Long | Electric sign |
| US1835912A (en) * | 1929-11-19 | 1931-12-08 | Sprague Signs Inc | Universal electric sign system |
| BE406793A (US07922777-20110412-C00004.png) * | 1934-07-04 | 1935-01-01 | ||
| DE709781C (de) * | 1934-09-13 | 1941-08-27 | Siemens Schuckertwerke Akt Ges | Steuerung von mehrphasigen Gas- oder Dampfentladungsstrecken mit einer verhaeltnismaessig schwachen Steuerenergiequelle |
| CH199296A (de) * | 1936-04-25 | 1938-08-15 | Licentia Gmbh | Verfahren zur Regelung von Stromrichtern. |
| US2431083A (en) * | 1944-09-01 | 1947-11-18 | Welding Research Inc | Electric valve converting system |
| US2474867A (en) * | 1945-12-20 | 1949-07-05 | Welding Research Inc | Protective system for three-phase single-phase machines |
| US2549831A (en) * | 1948-05-21 | 1951-04-24 | Westinghouse Electric Corp | Conversion system |
| US2619625A (en) * | 1949-07-01 | 1952-11-25 | Westinghouse Electric Corp | Frequency converter control |
| US2704820A (en) * | 1951-02-24 | 1955-03-22 | William H Martin | Phase and frequency conversion system |
| DE892932C (de) * | 1951-09-01 | 1953-10-12 | Licentia Gmbh | Anordnung zur unsymmetrischen Steuerung von mit gittergesteuerten Dampf- oder Gasentladungsstrecken arbeitenden Stromrichtern |
| BE520456A (US07922777-20110412-C00004.png) * | 1952-06-04 | 1900-01-01 |
-
0
- BE BE542688D patent/BE542688A/xx unknown
-
1955
- 1955-11-05 DE DEN11416A patent/DE1110284B/de active Pending
- 1955-11-09 US US545885A patent/US2905880A/en not_active Expired - Lifetime
- 1955-11-09 CH CH338916D patent/CH338916A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2905880A (en) | 1959-09-22 |
| CH338916A (de) | 1959-06-15 |
| DE1110284B (de) | 1961-07-06 |
