JPS56147515A - Voltage controlled type oscillator - Google Patents

Voltage controlled type oscillator

Info

Publication number
JPS56147515A
JPS56147515A JP5205880A JP5205880A JPS56147515A JP S56147515 A JPS56147515 A JP S56147515A JP 5205880 A JP5205880 A JP 5205880A JP 5205880 A JP5205880 A JP 5205880A JP S56147515 A JPS56147515 A JP S56147515A
Authority
JP
Japan
Prior art keywords
capacitor
potential
voltage controlled
trs
transistors
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
JP5205880A
Other languages
Japanese (ja)
Inventor
Onori Murakami
Nobuyuki Toyoda
Fujio Maki
Masaji Tanji
Ryutaro Futakuchi
Wataru Masuda
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 JP5205880A priority Critical patent/JPS56147515A/en
Publication of JPS56147515A publication Critical patent/JPS56147515A/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
    • H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
    • H03K3/0231—Astable circuits

Abstract

PURPOSE:To enable stable operation even at >=1MHz of the oscillation frequency, by detecting the capacitor voltage with the switching circuit having the hysteresis characteristics and repeating on/off. CONSTITUTION:When transistors 1, 2 constituting a switching circuit having hysteresis characteristics are off, the current IO flowing to the reference current source 20 flows equally to transistors (TR) 16, 17, 26-29, and 2IO is fed from the power supply line via the differential switching TR18 and the capacitor 21 is charged up with IO. Further, the TRs 1, 2 are on with the increased potential of the capacitor 21, the TR3 is off and the base potential of the differential switching TR19 is increased and the charge of the capacitor 5 is discharged with the current of IO via the TR19. Further, if the potential of the capacitor 5 is lowered, the TRs 1, 2 are off, similar operation is repeated for the repetition of the oscillation.
JP5205880A 1980-04-18 1980-04-18 Voltage controlled type oscillator Pending JPS56147515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5205880A JPS56147515A (en) 1980-04-18 1980-04-18 Voltage controlled type oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5205880A JPS56147515A (en) 1980-04-18 1980-04-18 Voltage controlled type oscillator

Publications (1)

Publication Number Publication Date
JPS56147515A true JPS56147515A (en) 1981-11-16

Family

ID=12904206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5205880A Pending JPS56147515A (en) 1980-04-18 1980-04-18 Voltage controlled type oscillator

Country Status (1)

Country Link
JP (1) JPS56147515A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177013A (en) * 1982-04-08 1983-10-17 Sony Corp Fm demodulator circuit
JPS6168528U (en) * 1984-10-09 1986-05-10

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56126315A (en) * 1980-03-11 1981-10-03 Sony Corp Oscillator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56126315A (en) * 1980-03-11 1981-10-03 Sony Corp Oscillator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177013A (en) * 1982-04-08 1983-10-17 Sony Corp Fm demodulator circuit
JPS6168528U (en) * 1984-10-09 1986-05-10

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