GB951480A - Improvements in or relating to voltage control arrangements for a.c. generators - Google Patents
Improvements in or relating to voltage control arrangements for a.c. generatorsInfo
- Publication number
- GB951480A GB951480A GB3791961A GB3791961A GB951480A GB 951480 A GB951480 A GB 951480A GB 3791961 A GB3791961 A GB 3791961A GB 3791961 A GB3791961 A GB 3791961A GB 951480 A GB951480 A GB 951480A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- generator
- transistor
- output
- output voltage
- 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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
- H02P9/305—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/16—Regulation of the charging current or voltage by variation of field
- H02J7/26—Regulation of the charging current or voltage by variation of field using magnetic devices with controllable degree of saturation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
951,480. Exciting alternators. S. BROD. Jan. 18, 1963 [Oct. 23, 1961], No. 37919/61. Heading H2A. [Also in Divisions G3 and H4] The output voltage of a self-excited A.C. generator is regulated by controlling a variable shunt impedance connected across the field winding of the generator. As shown, a generator G having output leads B1, B2 and B3 is self-excited over a current transformer T1 and a rectifier MR1, the field winding F being shunted by a switching transistor Q3 controlled by a multivibrator circuit which includes transistors Q4, Q5. A direct voltage proportional to the output voltage of the generator is derived from a second rectifier MR2, and this direct voltage is compared with a reference voltage, across terminals BV1, RV2, to produce a control voltage which is applied to a transistor Q6 regulating the multivibrator circuit. Variations in the output voltage about a desired level produce corresponding variations in the conductivity of transistor Q6, thus altering the on/off ratio of each output cycle of the multivibrator circuit of Q4, Q5, whereby the period of conduction of transistor Q3 during each cycle of the multivibrator is varied in such a manner as to keep the output voltage constant. In another embodiment (Fig. 1, not shown), the field winding is shunted by a transductor controlled by an error voltage derived from a Wheatstone bridge which includes a Zener diode as a reference source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3791961A GB951480A (en) | 1961-10-23 | 1961-10-23 | Improvements in or relating to voltage control arrangements for a.c. generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3791961A GB951480A (en) | 1961-10-23 | 1961-10-23 | Improvements in or relating to voltage control arrangements for a.c. generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB951480A true GB951480A (en) | 1964-03-04 |
Family
ID=10399937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3791961A Expired GB951480A (en) | 1961-10-23 | 1961-10-23 | Improvements in or relating to voltage control arrangements for a.c. generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB951480A (en) |
-
1961
- 1961-10-23 GB GB3791961A patent/GB951480A/en not_active Expired
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