GB1187312A - Improvements relating to the Stabilisation of Electrical Power-Supply Systems - Google Patents
Improvements relating to the Stabilisation of Electrical Power-Supply SystemsInfo
- Publication number
- GB1187312A GB1187312A GB182268A GB182268A GB1187312A GB 1187312 A GB1187312 A GB 1187312A GB 182268 A GB182268 A GB 182268A GB 182268 A GB182268 A GB 182268A GB 1187312 A GB1187312 A GB 1187312A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current
- transistor
- load current
- circuit
- arrangement
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/59—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices including plural semiconductor devices as final control devices for a single load
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/618—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series and in parallel with the load as final control devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
1,187,312. Automatic control of current and voltage. HARMER & SIMMONS Ltd. Sept. 5, 1968 [Jan.12, 1968], No.1822/68. Heading G3R. A D. C. load 1 is supplied from an A. C. source 2 by way of two circuits in parallel, the first circuit being capable of supplying the major proportion, e.g. 95% of the maximum load current and comprising a thyristor or transductor arrangement 6, a transformer 7 and a rectifier 8 and the second circuit being capable of supplying a small predetermined proportion, e. g. 5% of the load current and comprising a conventional series transistor regulating circuit 3, 4, 5, 9, 10, 11; a tapping on a resistor 12 in the emitter circuit of transistor 5 is connected to the control terminal of the arrangement 6, which is thus controlled to conduct when, assuming the above numerical example, the output of the transistor 5 is equal to 5% of the maximum load current. When the load current increases the arrangement 6 is then controlled to pass more current whereby the current through transistor 5 is maintained at the said value of 5% of maximum full load current. Thus variation in the output voltage caused by transients of the order of Œ5% of maximum full load current can be compensated-for by the high-speed response of the relatively lightly loaded transistor regulator only, with consequent increase in the efficiency of the system as a whole. The second circuit, including the series regulator, may be replaced by a shunt transistor regulator circuit connected across the load Figs.3 and 4 (not shown), in which case the arrangement 6 must be capable of supplying, say, 105% of the maximum load current. The system may be modified to provide constant current rather than constant voltage control.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB182268A GB1187312A (en) | 1968-01-12 | 1968-01-12 | Improvements relating to the Stabilisation of Electrical Power-Supply Systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB182268A GB1187312A (en) | 1968-01-12 | 1968-01-12 | Improvements relating to the Stabilisation of Electrical Power-Supply Systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1187312A true GB1187312A (en) | 1970-04-08 |
Family
ID=9728620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB182268A Expired GB1187312A (en) | 1968-01-12 | 1968-01-12 | Improvements relating to the Stabilisation of Electrical Power-Supply Systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1187312A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2231177A (en) * | 1989-05-01 | 1990-11-07 | Samsung Electronics Co Ltd | Supply voltage converter for semiconductor memory device |
RU2601419C1 (en) * | 2015-12-01 | 2016-11-10 | Открытое акционерное общество "Энергетический институт им. Г.М. Кржижановского" | Secondary power supply |
-
1968
- 1968-01-12 GB GB182268A patent/GB1187312A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2231177A (en) * | 1989-05-01 | 1990-11-07 | Samsung Electronics Co Ltd | Supply voltage converter for semiconductor memory device |
GB2231177B (en) * | 1989-05-01 | 1993-06-16 | Samsung Electronics Co Ltd | Supply voltage converter |
RU2601419C1 (en) * | 2015-12-01 | 2016-11-10 | Открытое акционерное общество "Энергетический институт им. Г.М. Кржижановского" | Secondary power supply |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |