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FR2308978A1 - Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider paths - Google Patents

Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider paths

Info

Publication number
FR2308978A1
FR2308978A1 FR7512809A FR7512809A FR2308978A1 FR 2308978 A1 FR2308978 A1 FR 2308978A1 FR 7512809 A FR7512809 A FR 7512809A FR 7512809 A FR7512809 A FR 7512809A FR 2308978 A1 FR2308978 A1 FR 2308978A1
Authority
FR
France
Prior art keywords
dissipation
coupling
voltage source
constant current
integrated unit
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.)
Granted
Application number
FR7512809A
Other languages
French (fr)
Other versions
FR2308978B1 (en
Inventor
Claude Chapron
Jean-Claude Kaire
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.)
Radiotechnique Compelec RTC SA
Original Assignee
Radiotechnique Compelec RTC SA
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 Radiotechnique Compelec RTC SA filed Critical Radiotechnique Compelec RTC SA
Priority to FR7512809A priority Critical patent/FR2308978A1/en
Priority to DE2616363A priority patent/DE2616363C3/en
Priority to NL7604123A priority patent/NL7604123A/en
Priority to CA250,617A priority patent/CA1061864A/en
Priority to US05/678,867 priority patent/US4078199A/en
Priority to IT22516/76A priority patent/IT1063401B/en
Priority to GB16105/76A priority patent/GB1548930A/en
Priority to JP51045017A priority patent/JPS51127447A/en
Publication of FR2308978A1 publication Critical patent/FR2308978A1/en
Application granted granted Critical
Publication of FR2308978B1 publication Critical patent/FR2308978B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G05F3/26—Current mirrors
    • G05F3/265—Current mirrors using bipolar transistors only

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)
  • Control Of Electrical Variables (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Amplifiers (AREA)

Abstract

The constant current supply source is suitable for feeding one or more tandem stages of I2L circuits from a source of very variable voltage with a minimum power dissipation. The unit has a first current distribution path of a diode D1 in a circuit B1 bridging the base-emitter junction of an NPN transistor T2. The emitter of T2 is connected to the negative line L2 and its collector/emitter junction is included in a second current circuit B2, connected to the positive line L1 via the collector/emitter junction of a pnp transistor with a resistance in its emitter circuit.
FR7512809A 1975-04-24 1975-04-24 Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider paths Granted FR2308978A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7512809A FR2308978A1 (en) 1975-04-24 1975-04-24 Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider paths
DE2616363A DE2616363C3 (en) 1975-04-24 1976-04-14 Device for supplying a constant direct feed current
NL7604123A NL7604123A (en) 1975-04-24 1976-04-20 DEVICE FOR SUPPLYING REGULATED POWER.
US05/678,867 US4078199A (en) 1975-04-24 1976-04-21 Device for supplying a regulated current
CA250,617A CA1061864A (en) 1975-04-24 1976-04-21 Device for supplying a regulated current
IT22516/76A IT1063401B (en) 1975-04-24 1976-04-21 POWER SUPPLY OF A STABILIZED CURRENT
GB16105/76A GB1548930A (en) 1975-04-24 1976-04-21 Regulated current supply circuit
JP51045017A JPS51127447A (en) 1975-04-24 1976-04-22 Regulated current supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7512809A FR2308978A1 (en) 1975-04-24 1975-04-24 Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider paths

Publications (2)

Publication Number Publication Date
FR2308978A1 true FR2308978A1 (en) 1976-11-19
FR2308978B1 FR2308978B1 (en) 1977-11-25

Family

ID=9154430

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7512809A Granted FR2308978A1 (en) 1975-04-24 1975-04-24 Constant current circuit feeding integrated unit - uses varying voltage source with min. dissipation and coupling between parallel current divider paths

Country Status (1)

Country Link
FR (1) FR2308978A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2308978B1 (en) 1977-11-25

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Legal Events

Date Code Title Description
CA Change of address
CD Change of name or company name
ST Notification of lapse