FR2178518A5 - - Google Patents
Info
- Publication number
- FR2178518A5 FR2178518A5 FR7235894A FR7235894A FR2178518A5 FR 2178518 A5 FR2178518 A5 FR 2178518A5 FR 7235894 A FR7235894 A FR 7235894A FR 7235894 A FR7235894 A FR 7235894A FR 2178518 A5 FR2178518 A5 FR 2178518A5
- Authority
- FR
- France
- 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.)
- Expired
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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/288—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using variable impedance
- H02P7/2885—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using variable impedance whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2237672A IT950751B (it) | 1972-03-25 | 1972-03-25 | Circuito elettronico a transistore di potenza per la tratura e varia zione lineare di velocita a coppia costante di motore a collettore par ticolarmente per cineproiettori |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2178518A5 true FR2178518A5 (hu) | 1973-11-09 |
Family
ID=11195424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7235894A Expired FR2178518A5 (hu) | 1972-03-25 | 1972-10-05 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4916429A (hu) |
| BE (1) | BE789997A (hu) |
| DE (1) | DE2248378A1 (hu) |
| FR (1) | FR2178518A5 (hu) |
| IT (1) | IT950751B (hu) |
| NL (1) | NL7214375A (hu) |
-
0
- BE BE789997D patent/BE789997A/xx unknown
-
1972
- 1972-03-25 IT IT2237672A patent/IT950751B/it active
- 1972-10-03 DE DE19722248378 patent/DE2248378A1/de active Pending
- 1972-10-05 FR FR7235894A patent/FR2178518A5/fr not_active Expired
- 1972-10-24 NL NL7214375A patent/NL7214375A/xx unknown
- 1972-12-05 JP JP12124872A patent/JPS4916429A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL7214375A (hu) | 1973-09-27 |
| BE789997A (fr) | 1973-02-01 |
| DE2248378A1 (de) | 1973-09-27 |
| JPS4916429A (hu) | 1974-02-13 |
| IT950751B (it) | 1973-06-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |