JPS5761325A - Voltage-controlled variable oscillating circuit - Google Patents

Voltage-controlled variable oscillating circuit

Info

Publication number
JPS5761325A
JPS5761325A JP55137110A JP13711080A JPS5761325A JP S5761325 A JPS5761325 A JP S5761325A JP 55137110 A JP55137110 A JP 55137110A JP 13711080 A JP13711080 A JP 13711080A JP S5761325 A JPS5761325 A JP S5761325A
Authority
JP
Japan
Prior art keywords
voltage
channel
earth
series
power line
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
JP55137110A
Other languages
Japanese (ja)
Other versions
JPS6262093B2 (en
Inventor
Hiroyuki Kikuchi
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 JP55137110A priority Critical patent/JPS5761325A/en
Publication of JPS5761325A publication Critical patent/JPS5761325A/en
Publication of JPS6262093B2 publication Critical patent/JPS6262093B2/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
    • H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
    • H03K3/354—Astable circuits

Abstract

PURPOSE:To increase the width of a variable oscillation frequency range greatly by connecting a p channel and an n channel MISFET in series between a power line and earth. CONSTITUTION:Between a power line 4 and earth, a p channel MISFETM4 and an N channel MISFETM5 are connected in series. The connection middle point between the FEts 4 and 5 is connected to the connection middle point A between an MISFETM2 and a resistance 5. Then, a p channel MISFETM7 is connected in series between the power line 4 and earth as well as a p channel MISFETM6. Further, an n channel MISFETM8 and an MISFETM9 are connected in series between the power line and earth. Consequently, control is so exercised by a control voltage V that only when the voltage of the FETM4 is less than a voltage VA, the FETM4 operates. The FETM5, on the other hand, is also controlled by the control voltage V to operate only when its voltage is less than a voltage VB.
JP55137110A 1980-09-30 1980-09-30 Voltage-controlled variable oscillating circuit Granted JPS5761325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55137110A JPS5761325A (en) 1980-09-30 1980-09-30 Voltage-controlled variable oscillating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55137110A JPS5761325A (en) 1980-09-30 1980-09-30 Voltage-controlled variable oscillating circuit

Publications (2)

Publication Number Publication Date
JPS5761325A true JPS5761325A (en) 1982-04-13
JPS6262093B2 JPS6262093B2 (en) 1987-12-24

Family

ID=15191067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55137110A Granted JPS5761325A (en) 1980-09-30 1980-09-30 Voltage-controlled variable oscillating circuit

Country Status (1)

Country Link
JP (1) JPS5761325A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165414A (en) * 1982-03-26 1983-09-30 Hitachi Ltd Oscillating circuit
JPS5962215A (en) * 1982-10-01 1984-04-09 Hitachi Ltd Voltage controlled oscillating circuit
US5061906A (en) * 1989-07-28 1991-10-29 Fujitsu Limited Voltage controlled oscillator using control transistors in a loop formed of inverters

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165414A (en) * 1982-03-26 1983-09-30 Hitachi Ltd Oscillating circuit
JPH0474892B2 (en) * 1982-03-26 1992-11-27
JPS5962215A (en) * 1982-10-01 1984-04-09 Hitachi Ltd Voltage controlled oscillating circuit
US5061906A (en) * 1989-07-28 1991-10-29 Fujitsu Limited Voltage controlled oscillator using control transistors in a loop formed of inverters

Also Published As

Publication number Publication date
JPS6262093B2 (en) 1987-12-24

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