CA944020A - Microampere current source - Google Patents

Microampere current source

Info

Publication number
CA944020A
CA944020A CA101,001A CA101001A CA944020A CA 944020 A CA944020 A CA 944020A CA 101001 A CA101001 A CA 101001A CA 944020 A CA944020 A CA 944020A
Authority
CA
Canada
Prior art keywords
current source
microampere current
microampere
source
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
CA101,001A
Other versions
CA101001S (en
Inventor
Cornelis Mulder
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA944020A publication Critical patent/CA944020A/en
Expired 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
    • G05F3/30—Regulators using the difference between the base-emitter voltages of two bipolar transistors operating at different current densities

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)
  • Bipolar Integrated Circuits (AREA)
  • Bipolar Transistors (AREA)
  • Control Of Electrical Variables (AREA)
CA101,001A 1969-12-25 1970-12-18 Microampere current source Expired CA944020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6919466A NL6919466A (en) 1969-12-25 1969-12-25

Publications (1)

Publication Number Publication Date
CA944020A true CA944020A (en) 1974-03-19

Family

ID=19808721

Family Applications (1)

Application Number Title Priority Date Filing Date
CA101,001A Expired CA944020A (en) 1969-12-25 1970-12-18 Microampere current source

Country Status (7)

Country Link
JP (1) JPS509976B1 (en)
CA (1) CA944020A (en)
DE (1) DE2059756B2 (en)
ES (1) ES386770A1 (en)
GB (1) GB1339908A (en)
HK (1) HK57876A (en)
NL (1) NL6919466A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329664A1 (en) * 1983-08-17 1985-03-07 Telefunken electronic GmbH, 7100 Heilbronn CIRCUIT FOR CONVERTING SIGNAL SIGNALS
DE4111584A1 (en) * 1991-04-10 1992-10-15 Thomson Brandt Gmbh CIRCUIT FOR GENERATING VERY SMALL CURRENTS
CN113884203B (en) * 2021-08-30 2023-11-14 南通职业大学 Semiconductor Vacuum Diode Temperature Sensor

Also Published As

Publication number Publication date
JPS509976B1 (en) 1975-04-17
NL6919466A (en) 1971-06-29
ES386770A1 (en) 1973-04-01
HK57876A (en) 1976-10-01
DE2059756A1 (en) 1971-07-01
DE2059756B2 (en) 1976-06-10
GB1339908A (en) 1973-12-05

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