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JPS5710818A - Bipolar type constant current device - Google Patents

Bipolar type constant current device

Info

Publication number
JPS5710818A
JPS5710818A JP1840781A JP1840781A JPS5710818A JP S5710818 A JPS5710818 A JP S5710818A JP 1840781 A JP1840781 A JP 1840781A JP 1840781 A JP1840781 A JP 1840781A JP S5710818 A JPS5710818 A JP S5710818A
Authority
JP
Japan
Prior art keywords
constant current
terminal
current circuit
resistance
negative
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
JP1840781A
Other languages
Japanese (ja)
Inventor
Tadashi Azegami
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP1840781A priority Critical patent/JPS5710818A/en
Priority to US06/275,510 priority patent/US4387601A/en
Priority to DE19813125664 priority patent/DE3125664A1/en
Priority to FR8112976A priority patent/FR2486232B1/en
Publication of JPS5710818A publication Critical patent/JPS5710818A/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
    • G05F3/24—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type 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)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To make a constant current flow in both directions, by connecting in series and in opposite polarity each, two constant current circuits which have been constituted by connecting a resistance between one end of a junction type field effect transistor and a gate. CONSTITUTION:When a terminal 27 side and a terminal 28 side become positive and negative, respectively, a constant current circuit 21 is operated as a diode in the forward direction, and in a constant current circuit 22, a current flowing in its drain source is controlled by gate voltage, a drain current flows in a resistance 26, is negative-fed back to a gate, and a current which has divided pinch-off voltage of a transistor 24 by a resistance value of the resistance 26 flows in between the terminals 27, 28. On the contrary, when the terminal 28 side and the terminal 27 side become positive and negative, respectively, the constant current circuit 22 is operated as a diode in the forward direction, and only the constant current circuit 21 is operated as a constant current circuit.
JP1840781A 1980-07-01 1981-02-09 Bipolar type constant current device Pending JPS5710818A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1840781A JPS5710818A (en) 1981-02-09 1981-02-09 Bipolar type constant current device
US06/275,510 US4387601A (en) 1980-07-01 1981-06-19 Capacitance type displacement conversion device
DE19813125664 DE3125664A1 (en) 1980-07-01 1981-06-30 ADJUSTMENT DEVICE
FR8112976A FR2486232B1 (en) 1980-07-01 1981-07-01 CAPACITIVE-TYPE DISPLACEMENT CONVERSION DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1840781A JPS5710818A (en) 1981-02-09 1981-02-09 Bipolar type constant current device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP8443680A Division JPS5710524A (en) 1980-06-20 1980-06-20 Self-running multivibrator

Publications (1)

Publication Number Publication Date
JPS5710818A true JPS5710818A (en) 1982-01-20

Family

ID=11970808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1840781A Pending JPS5710818A (en) 1980-07-01 1981-02-09 Bipolar type constant current device

Country Status (1)

Country Link
JP (1) JPS5710818A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5450948A (en) * 1977-09-30 1979-04-21 Toshiba Corp Bidirectional constant current circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5450948A (en) * 1977-09-30 1979-04-21 Toshiba Corp Bidirectional constant current circuit

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