JPH05727B2 - - Google Patents

Info

Publication number
JPH05727B2
JPH05727B2 JP57217597A JP21759782A JPH05727B2 JP H05727 B2 JPH05727 B2 JP H05727B2 JP 57217597 A JP57217597 A JP 57217597A JP 21759782 A JP21759782 A JP 21759782A JP H05727 B2 JPH05727 B2 JP H05727B2
Authority
JP
Japan
Prior art keywords
transistor
change
rate
current
ref
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 - Lifetime
Application number
JP57217597A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59107612A (ja
Inventor
Kazuji Yamada
Ryoichi Kobayashi
Yasuo Nagai
Kaoru Shimizu
Hiroji Kawakami
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57217597A priority Critical patent/JPS59107612A/ja
Priority to US06/559,467 priority patent/US4591780A/en
Publication of JPS59107612A publication Critical patent/JPS59107612A/ja
Publication of JPH05727B2 publication Critical patent/JPH05727B2/ja
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
    • G05F3/30—Regulators using the difference between the base-emitter voltages of two bipolar transistors operating at different current densities
    • 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)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)
  • Amplifiers (AREA)
JP57217597A 1982-12-10 1982-12-10 レシオメトリック定電流装置 Granted JPS59107612A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP57217597A JPS59107612A (ja) 1982-12-10 1982-12-10 レシオメトリック定電流装置
US06/559,467 US4591780A (en) 1982-12-10 1983-12-08 Constant current source device having a ratio metricity between supply voltage and output current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57217597A JPS59107612A (ja) 1982-12-10 1982-12-10 レシオメトリック定電流装置

Publications (2)

Publication Number Publication Date
JPS59107612A JPS59107612A (ja) 1984-06-21
JPH05727B2 true JPH05727B2 (en:Method) 1993-01-06

Family

ID=16706784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57217597A Granted JPS59107612A (ja) 1982-12-10 1982-12-10 レシオメトリック定電流装置

Country Status (2)

Country Link
US (1) US4591780A (en:Method)
JP (1) JPS59107612A (en:Method)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771228A (en) * 1987-06-05 1988-09-13 Vtc Incorporated Output stage current limit circuit
JP2542623B2 (ja) * 1987-07-17 1996-10-09 株式会社東芝 カレントミラ−回路
JPH0727424B2 (ja) * 1988-12-09 1995-03-29 富士通株式会社 定電流源回路
US5119094A (en) * 1989-11-20 1992-06-02 Analog Devices, Inc. Termination circuit for an r-2r, ladder that compensates for the temperature drift caused by different current densities along the ladder, using one type of biopolar transistor
US5103157A (en) * 1990-07-10 1992-04-07 National Semiconductor Corp. Common emitter amplifiers operating from a multiplicity of power supplies
FR2681961A1 (fr) * 1991-09-30 1993-04-02 Sgs Thomson Microelectronics Generateur de courant precis.
US5498952A (en) * 1991-09-30 1996-03-12 Sgs-Thomson Microelectronics, S.A. Precise current generator
US5451859A (en) * 1991-09-30 1995-09-19 Sgs-Thomson Microelectronics, Inc. Linear transconductors
US5825167A (en) * 1992-09-23 1998-10-20 Sgs-Thomson Microelectronics, Inc. Linear transconductors
US5977759A (en) * 1999-02-25 1999-11-02 Nortel Networks Corporation Current mirror circuits for variable supply voltages
US8689888B2 (en) * 2010-10-27 2014-04-08 Vetco Gray Inc. Method and apparatus for positioning a wellhead member including an overpull indicator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4825459A (en:Method) * 1971-08-02 1973-04-03
JPS5936219B2 (ja) * 1975-11-04 1984-09-03 アサヒコウガクコウギヨウ カブシキガイシヤ カメラノデイジタルヒヨウジカイロ
JPS55611A (en) * 1978-06-09 1980-01-07 Toshiba Corp Constant current circuit
NL8103813A (nl) * 1981-08-14 1983-03-01 Philips Nv Stroomstabilisatieschakeling.
JPS5882319A (ja) * 1981-11-10 1983-05-17 Sanyo Electric Co Ltd 定電流回路

Also Published As

Publication number Publication date
JPS59107612A (ja) 1984-06-21
US4591780A (en) 1986-05-27

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