JPS5523615A - Voltage control type multivibrator of emitter coupling - Google Patents

Voltage control type multivibrator of emitter coupling

Info

Publication number
JPS5523615A
JPS5523615A JP9549578A JP9549578A JPS5523615A JP S5523615 A JPS5523615 A JP S5523615A JP 9549578 A JP9549578 A JP 9549578A JP 9549578 A JP9549578 A JP 9549578A JP S5523615 A JPS5523615 A JP S5523615A
Authority
JP
Japan
Prior art keywords
base
collector
emitter
voltage control
control type
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
JP9549578A
Other languages
Japanese (ja)
Inventor
Arihito Okamura
Tatsuo Baba
Teruo Fujii
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 JP9549578A priority Critical patent/JPS5523615A/en
Publication of JPS5523615A publication Critical patent/JPS5523615A/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)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

PURPOSE:To achieve the stable oscillated frequency against the temperature change in environs, by using the NPN type of emitter coupling as the transistor of the oscillation section and PNP type for the control circuit transistor. CONSTITUTION:The capacitance 111 is connected between the emitters of the transistors Tr 15 and 16 of the same conduction type, the base of Tr 15 is connected to the collector of Tr 16, the base of Tr 16 is connected to the collector of Tr 15, and the collectors of Tr 15,Tr 16 are connected to the power supply 113 through the resistors 11 and 12 respectively. Further, the emitter and collector of Tr 17 are connected to Tr 16, and control voltage is fed to the bases of Tr 17 and 18. Further, the emitter of Tr 26 of opposite conduction type as Tr 15,16 is connected to the base of Tr 17,18, and the diodes 27 and 28 are connected between the base and collector of Tr 26 in the forward direction to the base current of Tr 26.
JP9549578A 1978-08-07 1978-08-07 Voltage control type multivibrator of emitter coupling Pending JPS5523615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9549578A JPS5523615A (en) 1978-08-07 1978-08-07 Voltage control type multivibrator of emitter coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9549578A JPS5523615A (en) 1978-08-07 1978-08-07 Voltage control type multivibrator of emitter coupling

Publications (1)

Publication Number Publication Date
JPS5523615A true JPS5523615A (en) 1980-02-20

Family

ID=14139171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9549578A Pending JPS5523615A (en) 1978-08-07 1978-08-07 Voltage control type multivibrator of emitter coupling

Country Status (1)

Country Link
JP (1) JPS5523615A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62289010A (en) * 1986-06-09 1987-12-15 Hitachi Ltd Current control oscillator
JPS63195809U (en) * 1987-06-03 1988-12-16
JPH01119605U (en) * 1988-12-22 1989-08-14
JP2006270641A (en) * 2005-03-24 2006-10-05 New Japan Radio Co Ltd Oscillation circuit
US7371214B2 (en) 2002-08-27 2008-05-13 Dainippon Sumitomo Pharma Co., Ltd. Vital sign display device and method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50126147A (en) * 1974-03-22 1975-10-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50126147A (en) * 1974-03-22 1975-10-03

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62289010A (en) * 1986-06-09 1987-12-15 Hitachi Ltd Current control oscillator
JPH053932B2 (en) * 1986-06-09 1993-01-18 Hitachi Ltd
JPS63195809U (en) * 1987-06-03 1988-12-16
JPH0530723Y2 (en) * 1987-06-03 1993-08-06
JPH01119605U (en) * 1988-12-22 1989-08-14
US7371214B2 (en) 2002-08-27 2008-05-13 Dainippon Sumitomo Pharma Co., Ltd. Vital sign display device and method thereof
JP2006270641A (en) * 2005-03-24 2006-10-05 New Japan Radio Co Ltd Oscillation circuit

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