JPS5521608A - Voltage control multivibrator - Google Patents

Voltage control multivibrator

Info

Publication number
JPS5521608A
JPS5521608A JP9366478A JP9366478A JPS5521608A JP S5521608 A JPS5521608 A JP S5521608A JP 9366478 A JP9366478 A JP 9366478A JP 9366478 A JP9366478 A JP 9366478A JP S5521608 A JPS5521608 A JP S5521608A
Authority
JP
Japan
Prior art keywords
fet
operational amplifier
linearity
several
versus 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
JP9366478A
Other languages
Japanese (ja)
Inventor
Koichi Asatani
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9366478A priority Critical patent/JPS5521608A/en
Publication of JPS5521608A publication Critical patent/JPS5521608A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/282—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator astable
    • H03K3/2821—Emitters connected to one another by using a capacitor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To realize the multivibrator circuit having good linearity in input voltage versus output frequency characteristics, by providing the FET constant current circuit with the emitter of the transistor. CONSTITUTION:The constant current circuit is constituted with FET 8 and 9, and the gate voltage of FET is given from the operational amplifiers 10 and 11. The non-inverting input of the operational amplifier is kept at the control voltage Vi and the feedback current ib flows from the source resistors 12, 13(resistance value R1) to the inverting input of the operational amplifier. In this case, the current is constant, j0=Vi/R1+jb. Normally, in case of operational amplifier, jb is several nA to several muA. Since this value is smaller in several orders than that of the bipolar transistor, j0=Vi/R1 can be regarded. That is, the linearity in input voltage versus output current is very excellent, and accordingly, the linearity in input voltage versus output frequency can be obtained from the relation of oscillation frequency f i0/C.
JP9366478A 1978-08-02 1978-08-02 Voltage control multivibrator Pending JPS5521608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9366478A JPS5521608A (en) 1978-08-02 1978-08-02 Voltage control multivibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9366478A JPS5521608A (en) 1978-08-02 1978-08-02 Voltage control multivibrator

Publications (1)

Publication Number Publication Date
JPS5521608A true JPS5521608A (en) 1980-02-15

Family

ID=14088652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9366478A Pending JPS5521608A (en) 1978-08-02 1978-08-02 Voltage control multivibrator

Country Status (1)

Country Link
JP (1) JPS5521608A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58119902U (en) * 1982-02-10 1983-08-16 住友金属工業株式会社 Pilger - Mandrel for rolling mill
JPS5930731U (en) * 1982-08-23 1984-02-25 株式会社大井製作所 Vehicle folding seat locking device
US4874966A (en) * 1987-01-31 1989-10-17 U.S. Philips Corporation Multivibrator circuit having compensated delay time
JPH02161809A (en) * 1989-11-10 1990-06-21 Hitachi Ltd Logic circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49843B1 (en) * 1970-07-13 1974-01-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49843B1 (en) * 1970-07-13 1974-01-10

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58119902U (en) * 1982-02-10 1983-08-16 住友金属工業株式会社 Pilger - Mandrel for rolling mill
JPS5930731U (en) * 1982-08-23 1984-02-25 株式会社大井製作所 Vehicle folding seat locking device
JPS6312005Y2 (en) * 1982-08-23 1988-04-07
US4874966A (en) * 1987-01-31 1989-10-17 U.S. Philips Corporation Multivibrator circuit having compensated delay time
JPH02161809A (en) * 1989-11-10 1990-06-21 Hitachi Ltd Logic circuit

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