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JPS56146320A - Voltage control oscillator - Google Patents

Voltage control oscillator

Info

Publication number
JPS56146320A
JPS56146320A JP4970080A JP4970080A JPS56146320A JP S56146320 A JPS56146320 A JP S56146320A JP 4970080 A JP4970080 A JP 4970080A JP 4970080 A JP4970080 A JP 4970080A JP S56146320 A JPS56146320 A JP S56146320A
Authority
JP
Japan
Prior art keywords
temperature
vbeoff
vbeon
vref
zero
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.)
Granted
Application number
JP4970080A
Other languages
Japanese (ja)
Other versions
JPS6218092B2 (en
Inventor
Minoru Matsushima
Onori Murakami
Fujio Maki
Keiichiro Horai
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4970080A priority Critical patent/JPS56146320A/en
Publication of JPS56146320A publication Critical patent/JPS56146320A/en
Publication of JPS6218092B2 publication Critical patent/JPS6218092B2/ja
Granted 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)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

PURPOSE:To compensate the dependence on temperature for the free-running oscillation frequency to zero logically, by securing such constitution of circuit in which a diode is connected in series to an emitter resistance of a transistor pair. CONSTITUTION:The temperature compensating diode 26 is connected in series to the emitter resistance 21 of a transistor pair. The free-running oscillation frequency f0 becomes as f0=Vref/4CR3 (VBEoff on-VBEon-VD.(R1/R2)+ Vref.R1/R2). If Vref is a stabilizing power source having the temperature coefficient of zero, the free-running oscillation frequency f0 has the dependance on temperature at VBEoff on-VBEon-VD.R1/R2. To set this temperature dependance to zero logically, the resistance ratio is decided between R1 and R2 so as to satisfy d/dT (VBEoff on- VBeon-VD.R1/R2)=0.
JP4970080A 1980-04-15 1980-04-15 Voltage control oscillator Granted JPS56146320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4970080A JPS56146320A (en) 1980-04-15 1980-04-15 Voltage control oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4970080A JPS56146320A (en) 1980-04-15 1980-04-15 Voltage control oscillator

Publications (2)

Publication Number Publication Date
JPS56146320A true JPS56146320A (en) 1981-11-13
JPS6218092B2 JPS6218092B2 (en) 1987-04-21

Family

ID=12838451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4970080A Granted JPS56146320A (en) 1980-04-15 1980-04-15 Voltage control oscillator

Country Status (1)

Country Link
JP (1) JPS56146320A (en)

Also Published As

Publication number Publication date
JPS6218092B2 (en) 1987-04-21

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