GB1339908A - Microampere current source - Google Patents

Microampere current source

Info

Publication number
GB1339908A
GB1339908A GB6082570A GB6082570A GB1339908A GB 1339908 A GB1339908 A GB 1339908A GB 6082570 A GB6082570 A GB 6082570A GB 6082570 A GB6082570 A GB 6082570A GB 1339908 A GB1339908 A GB 1339908A
Authority
GB
United Kingdom
Prior art keywords
transistor
biased
current source
transistors
collector
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
GB6082570A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1339908A publication Critical patent/GB1339908A/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)
GB6082570A 1969-12-25 1970-12-22 Microampere current source Expired GB1339908A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1339908A true GB1339908A (en) 1973-12-05

Family

ID=19808721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6082570A Expired GB1339908A (en) 1969-12-25 1970-12-22 Microampere current source

Country Status (7)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329664A1 (de) * 1983-08-17 1985-03-07 Telefunken electronic GmbH, 7100 Heilbronn Schaltung zum umwandeln von gleichsignalen
DE4111584A1 (de) * 1991-04-10 1992-10-15 Thomson Brandt Gmbh Schaltung zur generierung sehr kleiner stroeme
CN113884203B (zh) * 2021-08-30 2023-11-14 南通职业大学 半导体真空二极管温度传感器

Also Published As

Publication number Publication date
CA944020A (en) 1974-03-19
JPS509976B1 (de) 1975-04-17
NL6919466A (de) 1971-06-29
DE2059756B2 (de) 1976-06-10
ES386770A1 (es) 1973-04-01
DE2059756A1 (de) 1971-07-01
HK57876A (en) 1976-10-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee