GB943327A - Current stabilised dc supply arrangement - Google Patents
Current stabilised dc supply arrangementInfo
- Publication number
- GB943327A GB943327A GB2805862A GB2805862A GB943327A GB 943327 A GB943327 A GB 943327A GB 2805862 A GB2805862 A GB 2805862A GB 2805862 A GB2805862 A GB 2805862A GB 943327 A GB943327 A GB 943327A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistor
- transistor
- emitter
- current
- load current
- 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
- G05F1/595—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 semiconductor devices connected in series
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/18—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using Zener diodes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Nonlinear Science (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
943,327. Automatic current regulation. STANDARD TELEPHONES & CABLES Ltd. July 20,1962 [July 20, 1961], No. 28058/62. Heading G3R. [Also in Division H2] In a direct current stabilizer of the series transistor type, the emitter-collector path of the transistor is bridged by a resistor through which at least part of the load current flows should a fault occur, e.g. on short circuit, whereby the transistor is protected against overload. As shown, the current from a supply 1 to a load 6 is maintained constant in known manner by a circuit comprising a series transistor 5, an emitter resistor 2, a Zener diode 3 and a resistor 4. A resistor 7 shunts the emitter-collector path of the transistor 5; this resistor is so proportioned that it carries only a small part of the load current under normal operation, but the full load current under short circuit conditions, whereby the transistor 5 is protected. The resistor 7 may be of the ohmic, temperature-responsive, or voltageresponsive type.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH853561A CH385932A (en) | 1961-07-20 | 1961-07-20 | Current-stabilized direct current feed device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB943327A true GB943327A (en) | 1963-12-04 |
Family
ID=4341656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2805862A Expired GB943327A (en) | 1961-07-20 | 1962-07-20 | Current stabilised dc supply arrangement |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH385932A (en) |
GB (1) | GB943327A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012125928A3 (en) * | 2011-03-17 | 2013-06-13 | Watlow Electric Manufacturing Company | Voltage controlling circuit with an expanded supply input voltage range |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3752903A (en) * | 1971-11-08 | 1973-08-14 | Gen Electric | Pilot voltage supply & voltage regulation means |
-
1961
- 1961-07-20 CH CH853561A patent/CH385932A/en unknown
-
1962
- 1962-07-20 GB GB2805862A patent/GB943327A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012125928A3 (en) * | 2011-03-17 | 2013-06-13 | Watlow Electric Manufacturing Company | Voltage controlling circuit with an expanded supply input voltage range |
US9256239B2 (en) | 2011-03-17 | 2016-02-09 | Watlow Electric Manufacturing Company | Voltage controlling circuit |
Also Published As
Publication number | Publication date |
---|---|
CH385932A (en) | 1964-12-31 |
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