GB1248486A - Speed regulating electronic circuit for d.c. motor control - Google Patents
Speed regulating electronic circuit for d.c. motor controlInfo
- Publication number
- GB1248486A GB1248486A GB2421269A GB2421269A GB1248486A GB 1248486 A GB1248486 A GB 1248486A GB 2421269 A GB2421269 A GB 2421269A GB 2421269 A GB2421269 A GB 2421269A GB 1248486 A GB1248486 A GB 1248486A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- transistors
- speed regulating
- cascode
- inputs
- 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.)
- 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)
Abstract
1,248,486. Control of D.C. motors. EASTMAN KODAK CO. 13 May, 1969 [20 May, 1968], No. 24212/69. Heading H2J. [Also in Division G3] In a D.C. motor speed regulating circuit a plurality of equal resistors 80, 82 provide equal voltage drops, which are a function of the speed error, as inputs to a first set of emitter follower transistors 84, 86 arranged in cascode and whose outputs provide the inputs to a further set of emitter follower transistors 88, 90 also in cascode and in series with the motor armature 12. Transistors 88, 90 equally divide the dissipated power between them. The resistors 80, 82 form the collector load of a transistor amplifier 62 fed by a further amplifier 58 whose base voltage is the difference between the output of a tachogenerator 56 and a reference speed setting voltage derived from a potentiometer 50. The field winding 10 of the motor is separately energized with unsmoothed rectified current. A diode 92 across the motor protects transistors 88, 90 from the inductive surge when the supply is interrupted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73044268A | 1968-05-20 | 1968-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1248486A true GB1248486A (en) | 1971-10-06 |
Family
ID=24935383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2421269A Expired GB1248486A (en) | 1968-05-20 | 1969-05-13 | Speed regulating electronic circuit for d.c. motor control |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2008902A1 (en) |
| GB (1) | GB1248486A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112398385A (en) * | 2020-11-06 | 2021-02-23 | 尹永云 | Speed regulating circuit of DC motor |
-
1969
- 1969-05-13 GB GB2421269A patent/GB1248486A/en not_active Expired
- 1969-05-20 FR FR6916205A patent/FR2008902A1/fr active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112398385A (en) * | 2020-11-06 | 2021-02-23 | 尹永云 | Speed regulating circuit of DC motor |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2008902A1 (en) | 1970-01-30 |
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