JPS5741719A - Current converting circuit - Google Patents

Current converting circuit

Info

Publication number
JPS5741719A
JPS5741719A JP11539580A JP11539580A JPS5741719A JP S5741719 A JPS5741719 A JP S5741719A JP 11539580 A JP11539580 A JP 11539580A JP 11539580 A JP11539580 A JP 11539580A JP S5741719 A JPS5741719 A JP S5741719A
Authority
JP
Japan
Prior art keywords
current
base current
input
converting circuit
output
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.)
Pending
Application number
JP11539580A
Other languages
Japanese (ja)
Inventor
Matsuki 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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11539580A priority Critical patent/JPS5741719A/en
Publication of JPS5741719A publication Critical patent/JPS5741719A/en
Pending 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices

Landscapes

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

Abstract

PURPOSE:To reduce the error of current conversion, by flowing the current substantially equal to the base current of a transistor (TR) that supplies the base current to both TRs constituting a Miller circuit to the collector of the TR of the output side. CONSTITUTION:Not only an input current I1 but the base current of a TR3 are flowed to the collector of a TR1 of the input side. While not only an output current I0 but the base current of a TR4 flow to a TR2 of the output side. Accordingly, both the input and output currents are substantially proportional to hFE of the TR2 if the base current are substantially equal between TRs 3 and 4.
JP11539580A 1980-08-22 1980-08-22 Current converting circuit Pending JPS5741719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11539580A JPS5741719A (en) 1980-08-22 1980-08-22 Current converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11539580A JPS5741719A (en) 1980-08-22 1980-08-22 Current converting circuit

Publications (1)

Publication Number Publication Date
JPS5741719A true JPS5741719A (en) 1982-03-09

Family

ID=14661488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11539580A Pending JPS5741719A (en) 1980-08-22 1980-08-22 Current converting circuit

Country Status (1)

Country Link
JP (1) JPS5741719A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157728A (en) * 1983-02-27 1984-09-07 Rohm Co Ltd Current inverting circuit
US4733541A (en) * 1986-09-09 1988-03-29 Cambridge Aeroflo Inc. Constant cooling circuit and system
EP0600475A2 (en) * 1992-12-01 1994-06-08 Nec Corporation A constant current switching circuit provided with a base current compensating circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157728A (en) * 1983-02-27 1984-09-07 Rohm Co Ltd Current inverting circuit
US4733541A (en) * 1986-09-09 1988-03-29 Cambridge Aeroflo Inc. Constant cooling circuit and system
EP0600475A2 (en) * 1992-12-01 1994-06-08 Nec Corporation A constant current switching circuit provided with a base current compensating circuit
EP0600475A3 (en) * 1992-12-01 1995-01-25 Nippon Electric Co A constant current switching circuit provided with a base current compensating circuit.

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