GB1035071A - Improvements in or relating to voltage regulators - Google Patents
Improvements in or relating to voltage regulatorsInfo
- Publication number
- GB1035071A GB1035071A GB13584/63A GB1358463A GB1035071A GB 1035071 A GB1035071 A GB 1035071A GB 13584/63 A GB13584/63 A GB 13584/63A GB 1358463 A GB1358463 A GB 1358463A GB 1035071 A GB1035071 A GB 1035071A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- series
- voltage
- generator
- rectifier
- 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
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors
- H02H7/065—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors against excitation faults
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00308—Overvoltage protection
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
1,035,071. Automatic voltage control. ROBERT BOSCH G.m.b.H. April 5, 1963 [April 7, 1962],No.13584/63. Heading G3R. In a voltage regulator of the kind in which the field winding of a generator is connected in series with a main transistor controlled by a second transistor in dependence upon output voltage variations, the transistors are protected against possible overload, should a short-circuit occur in the field winding, by a circuit including a semi-conductor controlled rectifier. As shown, a main transistor 26 connected in series with the field winding 16 of a generator 15 is controlled by a second transistor 27 in dependence upon output voltage variations whereby the field current is varied to counteract these variations in known manner. Resistors 28, 29 and a diode 30 connected in series between the positive lead 18 and the base of transistor 26 ensure excitation when the generator starts from standstill. The overload protection circuit includes an input resistor 40 and a potentiometer 41 connected in parallel between the transistor 26 and the negative lead 20, and a semi-conductor controlled rectifier 42 having its anode connected to the collector of transistor 27 and to the junction of resistors 28 and 29, its cathode connected to negative lead 20, and its control electrode connected to the slider 44 of potentiometer 41. The arrangement is such that if excessive current flows through transistor 26 because of a fault in the field winding 16, the increased voltage at slider 44 renders the controlled rectifier 42 conductive so that transistor 27 is short-circuited by a low impedance path; also, the current flowing through resistor 28 and rectifier 42 is of such magnitude that the main transistor 26 returns to its blocked condition. Transistor 26 is thus protected and the circuit returns automatically to normal operation when the fault is removed. In a modification (Fig. 3, not shown), for use with a generator having an operating voltage of about 100V, a diode is connected in series with the controlled rectifier and the junction between the diode and the rectifier is connected to a tapping point of a voltage divider shunting the output terminals.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB66709A DE1176752B (en) | 1962-04-07 | 1962-04-07 | Protection arrangement for the main transistor of a voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1035071A true GB1035071A (en) | 1966-07-06 |
Family
ID=6975244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13584/63A Expired GB1035071A (en) | 1962-04-07 | 1963-04-05 | Improvements in or relating to voltage regulators |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3263155A (en) |
| JP (1) | JPS3926491B1 (en) |
| DE (1) | DE1176752B (en) |
| GB (1) | GB1035071A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1438675B1 (en) * | 1963-07-20 | 1970-05-27 | Bosch Gmbh Robert | Protection circuit for the main transistor of a voltage regulator |
| US3400323A (en) * | 1964-02-21 | 1968-09-03 | Electric Regulator Corp | Static voltage regulator for a d. c. generator |
| US3349318A (en) * | 1964-09-16 | 1967-10-24 | Siemens Ag | System for controlling thyristors by periodically recurring firing pulses |
| GB1147972A (en) * | 1965-09-13 | 1969-04-10 | Lucas Industries Ltd | Voltage regulators for use with generators having field windings |
| US3406318A (en) * | 1966-02-01 | 1968-10-15 | Gen Motors Corp | Potential regulator with an electrical polarity reversal protection feature |
| US3467854A (en) * | 1967-09-19 | 1969-09-16 | Gen Motors Corp | Transistor voltage regulator input circuit |
| IT1210915B (en) * | 1982-08-04 | 1989-09-29 | Ates Componenti Elettron | PROTECTION CIRCUIT AGAINST THE SHORT CIRCUIT OF THE EXCITATION WINDING FOR LOW VOLTAGE ALTERNATOR EQUIPPED WITH VOLTAGE REGULATOR, PARTICULARLY FOR AUTOMOTIVE USE. |
| US4658200A (en) * | 1983-03-25 | 1987-04-14 | Mitsubishi Denki Kabushiki Kaisha | Protection circuit for voltage regulator of vehicle mounted generator |
| JPS6135125A (en) * | 1984-07-25 | 1986-02-19 | 株式会社日立製作所 | Controller of charging generator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2862175A (en) * | 1954-11-15 | 1958-11-25 | Gen Motors Corp | Transistor controlled voltage regulator for a generator |
| US3098964A (en) * | 1958-08-22 | 1963-07-23 | Gen Motors Corp | Transistor regulator for generators |
| US3048718A (en) * | 1959-01-13 | 1962-08-07 | Gen Motors Corp | Transient responsive protection circuit |
| FR1267943A (en) * | 1960-06-16 | 1961-07-28 | Radiotechnique | Electronic regulator-contactor device for electrical energy source |
| JPS41002497B1 (en) * | 1960-06-24 | 1966-02-18 | ||
| US3193755A (en) * | 1962-05-25 | 1965-07-06 | Gen Electric | Voltage regulator |
-
1962
- 1962-04-07 DE DEB66709A patent/DE1176752B/en active Pending
-
1963
- 1963-04-01 US US269361A patent/US3263155A/en not_active Expired - Lifetime
- 1963-04-05 JP JP1723663A patent/JPS3926491B1/ja active Pending
- 1963-04-05 GB GB13584/63A patent/GB1035071A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS3926491B1 (en) | 1964-11-20 |
| DE1176752B (en) | 1964-08-27 |
| US3263155A (en) | 1966-07-26 |
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