NL71920C - - Google Patents
Info
- Publication number
- NL71920C NL71920C NL71920DA NL71920C NL 71920 C NL71920 C NL 71920C NL 71920D A NL71920D A NL 71920DA NL 71920 C NL71920 C NL 71920C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/16—Networks for phase shifting
- H03H11/22—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output
-
- 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)
- Control Of Electrical Variables (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR892346X | 1948-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL71920C true NL71920C (pt) |
Family
ID=9389553
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL666608287A NL143873B (nl) | 1948-04-13 | Werkwijze om ammoniak en ureum te bereiden. | |
| NL71920D NL71920C (pt) | 1948-04-13 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL666608287A NL143873B (nl) | 1948-04-13 | Werkwijze om ammoniak en ureum te bereiden. |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE892346C (pt) |
| FR (1) | FR965486A (pt) |
| NL (2) | NL71920C (pt) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1107814B (de) * | 1959-09-22 | 1961-05-31 | Siemens Ag | Schaltungsanordnung zur exakten 90íÒ-Phasendrehung einer Wechselspannung |
-
0
- FR FR965486D patent/FR965486A/fr not_active Expired
- NL NL666608287A patent/NL143873B/xx unknown
- NL NL71920D patent/NL71920C/xx active
-
1950
- 1950-08-06 DE DES18410A patent/DE892346C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE892346C (de) | 1953-10-05 |
| FR965486A (pt) | 1950-09-13 |
| NL143873B (nl) |