GB943327A - Current stabilised dc supply arrangement - Google Patents

Current stabilised dc supply arrangement

Info

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
Application number
GB2805862A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB943327A publication Critical patent/GB943327A/en
Expired legal-status Critical Current

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.
GB2805862A 1961-07-20 1962-07-20 Current stabilised dc supply arrangement Expired GB943327A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752903A (en) * 1971-11-08 1973-08-14 Gen Electric Pilot voltage supply & voltage regulation means

Cited By (2)

* Cited by examiner, † Cited by third party
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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