JPS5523632A - Control unit of relaxation oscillation circuit - Google Patents

Control unit of relaxation oscillation circuit

Info

Publication number
JPS5523632A
JPS5523632A JP9602178A JP9602178A JPS5523632A JP S5523632 A JPS5523632 A JP S5523632A JP 9602178 A JP9602178 A JP 9602178A JP 9602178 A JP9602178 A JP 9602178A JP S5523632 A JPS5523632 A JP S5523632A
Authority
JP
Japan
Prior art keywords
circuit
oscillation circuit
resistors
symmetry
relaxation oscillation
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
JP9602178A
Other languages
Japanese (ja)
Other versions
JPS6119141B2 (en
Inventor
Hiroyuki Nakada
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.)
ENUEFU KAIRO SETSUKEI BUROTSUK
NF KAIRO SEKKEI BLOCK KK
Original Assignee
ENUEFU KAIRO SETSUKEI BUROTSUK
NF KAIRO SEKKEI BLOCK KK
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 ENUEFU KAIRO SETSUKEI BUROTSUK, NF KAIRO SEKKEI BLOCK KK filed Critical ENUEFU KAIRO SETSUKEI BUROTSUK
Priority to JP9602178A priority Critical patent/JPS5523632A/en
Publication of JPS5523632A publication Critical patent/JPS5523632A/en
Publication of JPS6119141B2 publication Critical patent/JPS6119141B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To enable to vary the symmetry of the output waveform of the relaxation oscillation circuit without giving variation to the oscillation frequency, by connecting a single variable resistor consisting of two resistors between the inverting inputs of the first and second amplifiers.
CONSTITUTION: In the relaxation oscillation circuit, the series circuit of resistors R7 and R8 is connected between the inverting inputs of the differntial amplifiers Q11,Q12, and the single variable resistor R consisting of the resistors R1 and R2 is connected in parallel to it. In the circuit like this, the symmetry D of the output waveform and the oscillation frequency of the oscillation circuit OSC are controlled according to the relation expressed in equation (14). Further, when the circuit constant is set with the condition of R1,R2≪R7,R8, the relation of R1/R7≈0 and R2/R7≈0 is obtained. As clarified from equation (14), the symmetry only can be changed while keeping the frequency F constant, by changing the ratio of R1,R2 under R1+R2=constant. Further, since R1 and R2 are constituted with a single variable resistor, this objective can sufficiently be achieved.
COPYRIGHT: (C)1980,JPO&Japio
JP9602178A 1978-08-07 1978-08-07 Control unit of relaxation oscillation circuit Granted JPS5523632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9602178A JPS5523632A (en) 1978-08-07 1978-08-07 Control unit of relaxation oscillation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9602178A JPS5523632A (en) 1978-08-07 1978-08-07 Control unit of relaxation oscillation circuit

Publications (2)

Publication Number Publication Date
JPS5523632A true JPS5523632A (en) 1980-02-20
JPS6119141B2 JPS6119141B2 (en) 1986-05-15

Family

ID=14153624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9602178A Granted JPS5523632A (en) 1978-08-07 1978-08-07 Control unit of relaxation oscillation circuit

Country Status (1)

Country Link
JP (1) JPS5523632A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012371U (en) * 1983-07-01 1985-01-28 株式会社　トザキ商店 scissors
JPS6091172U (en) * 1983-11-25 1985-06-21 治田　四朗 scissors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3915843C1 (en) * 1989-05-16 1990-12-06 Eduard Kuesters Maschinenfabrik Gmbh & Co Kg, 4150 Krefeld, De

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012371U (en) * 1983-07-01 1985-01-28 株式会社　トザキ商店 scissors
JPS6091172U (en) * 1983-11-25 1985-06-21 治田　四朗 scissors
JPH0141397Y2 (en) * 1983-11-25 1989-12-07

Also Published As

Publication number Publication date
JPS6119141B2 (en) 1986-05-15

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