GB1166277A - A Control System for the Current Supplied to a Direct Current Load. - Google Patents
A Control System for the Current Supplied to a Direct Current Load.Info
- Publication number
- GB1166277A GB1166277A GB4922266A GB4922266A GB1166277A GB 1166277 A GB1166277 A GB 1166277A GB 4922266 A GB4922266 A GB 4922266A GB 4922266 A GB4922266 A GB 4922266A GB 1166277 A GB1166277 A GB 1166277A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switching device
- control system
- variable
- load
- potentiometer
- 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
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
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
- H02P7/29—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 pulse modulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/125—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M3/135—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
1,166,277. Control of D.C. motors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 2 Nov., 1966, No. 49222/66. Heading H2J. A switching device 10 through which a D.C. load such as a motor 1, 2 is supplied from a D.C. source U = is controlled by a device 5 which switches it on and off according to the difference between the actual current (measured at 4) and the sum of two "desired value" inputs to 5, namely a basic one derived from a potentiometer 6 and a variable one which is dependent upon the relative on/off time of the switching device. This variable reference is derived from the average voltage across the switching device. The object is to permit a higher load current when the on/off ratio is low than would be safe when the ratio is high. The variable reference is applied via a diode 17 and transistor 19 which is arranged so that the variable reference is only effective when it is less than the basic reference from potentiometer 6. The switching device comprises a thyristor 11 and a commutating thyristor 12, capacitor 14 and choke 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4922266A GB1166277A (en) | 1966-11-02 | 1966-11-02 | A Control System for the Current Supplied to a Direct Current Load. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4922266A GB1166277A (en) | 1966-11-02 | 1966-11-02 | A Control System for the Current Supplied to a Direct Current Load. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1166277A true GB1166277A (en) | 1969-10-08 |
Family
ID=10451600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4922266A Expired GB1166277A (en) | 1966-11-02 | 1966-11-02 | A Control System for the Current Supplied to a Direct Current Load. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1166277A (en) |
-
1966
- 1966-11-02 GB GB4922266A patent/GB1166277A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |