GB1222751A - Stabilized d.c. power supply - Google Patents
Stabilized d.c. power supplyInfo
- Publication number
- GB1222751A GB1222751A GB1119069A GB1119069A GB1222751A GB 1222751 A GB1222751 A GB 1222751A GB 1119069 A GB1119069 A GB 1119069A GB 1119069 A GB1119069 A GB 1119069A GB 1222751 A GB1222751 A GB 1222751A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- voltage
- stabilized
- terminals
- regulator
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
1,222,751. Automatic voltage control. COMMUNICATIONS CONSULTANTS Ltd. Dec.4, 1969 [March 3, 1969], No.11190/69. Heading G3R. A D.C. supply in which the positive terminal in earthed is stabilized by a voltage regulator comprising a series transistor 22 controlled by a regulator transistor 23 of opposite conductivity type through a beta-multiplying transistor 27 also of opposite conductivity type. The transistor 23 compares the output voltage from terminals 16, 20 with a Zener diode reference 24.. A further transistor 28 and Zener diode 29 provide a constant current supply to transistors 23, 27. The D.C. input voltage at terminals 10, 11 is passed through a bridge rectifier 15 to avoid accidents due to polarity reversals. A further voltage regulator 30 similar to that already described provides a second, lower voltage, stabilized output at the terminals 16, 31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1119069A GB1222751A (en) | 1969-03-03 | 1969-03-03 | Stabilized d.c. power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1119069A GB1222751A (en) | 1969-03-03 | 1969-03-03 | Stabilized d.c. power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1222751A true GB1222751A (en) | 1971-02-17 |
Family
ID=9981675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1119069A Expired GB1222751A (en) | 1969-03-03 | 1969-03-03 | Stabilized d.c. power supply |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1222751A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0103455A3 (en) * | 1982-09-10 | 1984-07-11 | Fujitsu Limited | Power supply circuit |
| DE102005004391A1 (en) * | 2005-01-31 | 2006-08-10 | Rohde & Schwarz Gmbh & Co. Kg | filter circuit |
-
1969
- 1969-03-03 GB GB1119069A patent/GB1222751A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0103455A3 (en) * | 1982-09-10 | 1984-07-11 | Fujitsu Limited | Power supply circuit |
| DE102005004391A1 (en) * | 2005-01-31 | 2006-08-10 | Rohde & Schwarz Gmbh & Co. Kg | filter circuit |
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