GB1063763A - Improvements in and relating to constant electrical current supply circuits - Google Patents

Improvements in and relating to constant electrical current supply circuits

Info

Publication number
GB1063763A
GB1063763A GB487265A GB487265A GB1063763A GB 1063763 A GB1063763 A GB 1063763A GB 487265 A GB487265 A GB 487265A GB 487265 A GB487265 A GB 487265A GB 1063763 A GB1063763 A GB 1063763A
Authority
GB
United Kingdom
Prior art keywords
relating
electrical current
current supply
supply circuits
constant electrical
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
GB487265A
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.)
Le Material Electr S W
Original Assignee
Le Material Electr S W
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 Le Material Electr S W filed Critical Le Material Electr S W
Publication of GB1063763A publication Critical patent/GB1063763A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
    • 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
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/22—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only
    • G05F3/222—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only with compensation for device parameters, e.g. Early effect, gain, manufacturing process, or external variations, e.g. temperature, loading, supply voltage
    • G05F3/225—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only with compensation for device parameters, e.g. Early effect, gain, manufacturing process, or external variations, e.g. temperature, loading, supply voltage producing a current or voltage as a predetermined function of the temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

1,063,763. Current stabilizers. LE MATERIAL ELECTRIQUE S.W. Feb. 4, 1965 [Feb.7, 1964], No.4872/65. Heading G3X. The current from a source 3 is stabilized by a circuit including transistors T1, T2 and resistors R2, R4, R5, R6 interconnected as shown. The emitter of transistor T1 is connected to a reference voltage source 1 and the Specification shows that the collector of transistor T2 provides the required stabilized output.
GB487265A 1964-02-07 1965-02-04 Improvements in and relating to constant electrical current supply circuits Expired GB1063763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR963039A FR1393427A (en) 1964-02-07 1964-02-07 Very low thermal derivative precision current generator

Publications (1)

Publication Number Publication Date
GB1063763A true GB1063763A (en) 1967-03-30

Family

ID=8822690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB487265A Expired GB1063763A (en) 1964-02-07 1965-02-04 Improvements in and relating to constant electrical current supply circuits

Country Status (6)

Country Link
BE (1) BE658886A (en)
DE (1) DE1297195B (en)
FR (1) FR1393427A (en)
GB (1) GB1063763A (en)
LU (1) LU47919A1 (en)
NL (1) NL6501470A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29619E (en) * 1972-01-24 1978-04-25 Analog Devices, Incorporated Constant-current digital-to-analog converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29619E (en) * 1972-01-24 1978-04-25 Analog Devices, Incorporated Constant-current digital-to-analog converter

Also Published As

Publication number Publication date
FR1393427A (en) 1965-03-26
DE1297195B (en) 1969-06-12
BE658886A (en) 1965-05-17
LU47919A1 (en) 1965-04-05
NL6501470A (en) 1965-08-09

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