JPS5531348A - Automatic frequency control circuit - Google Patents

Automatic frequency control circuit

Info

Publication number
JPS5531348A
JPS5531348A JP10467078A JP10467078A JPS5531348A JP S5531348 A JPS5531348 A JP S5531348A JP 10467078 A JP10467078 A JP 10467078A JP 10467078 A JP10467078 A JP 10467078A JP S5531348 A JPS5531348 A JP S5531348A
Authority
JP
Japan
Prior art keywords
comparison signal
capacitor
input
circuit
automatic frequency
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
JP10467078A
Other languages
Japanese (ja)
Inventor
Masato Tanabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10467078A priority Critical patent/JPS5531348A/en
Publication of JPS5531348A publication Critical patent/JPS5531348A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate an easy design by using the capacitor of the integrating circuit to obtain the comparison signal also for the capacitor for the phase detection circuit along with installation of the input/output terminal of the comparison signal.
CONSTITUTION: The voltage control oscillation comprising transistors TrQ2 and Q3 controls the oscillation frequency by varying the compound ratio of the two units of the output vector compound output ends featuring the different phase transition amoun to each other. Then the reference voltage is applied to one terminal OUT1 of the circuit, and the DC control voltage is applied to the other input terminal IN2 each. Thus capacitor C2 is made to double the capacitors for both the integrating circuit to obtain the comparison signal and the phase detection circuit, along with installation of the input/output terminal for the comparison signal. As a result, an automatic frequency control becomes possible, at the same time facilitating the design.
COPYRIGHT: (C)1980,JPO&Japio
JP10467078A 1978-08-28 1978-08-28 Automatic frequency control circuit Pending JPS5531348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10467078A JPS5531348A (en) 1978-08-28 1978-08-28 Automatic frequency control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10467078A JPS5531348A (en) 1978-08-28 1978-08-28 Automatic frequency control circuit

Publications (1)

Publication Number Publication Date
JPS5531348A true JPS5531348A (en) 1980-03-05

Family

ID=14386898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10467078A Pending JPS5531348A (en) 1978-08-28 1978-08-28 Automatic frequency control circuit

Country Status (1)

Country Link
JP (1) JPS5531348A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553562A (en) * 1983-05-04 1985-11-19 Toyo Kako Kabushiki Kaisha Resin-molded valve and method of making the same
WO2001006769A1 (en) * 1999-07-16 2001-01-25 Thomson Licensing S.A. Spurious frequencies attenuation for a dc reference voltage
US6518846B2 (en) 2000-07-03 2003-02-11 Mitsubishi Denki Kabushiki Kaisha Voltage controlled oscillator with voltage regulation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553562A (en) * 1983-05-04 1985-11-19 Toyo Kako Kabushiki Kaisha Resin-molded valve and method of making the same
WO2001006769A1 (en) * 1999-07-16 2001-01-25 Thomson Licensing S.A. Spurious frequencies attenuation for a dc reference voltage
US6518846B2 (en) 2000-07-03 2003-02-11 Mitsubishi Denki Kabushiki Kaisha Voltage controlled oscillator with voltage regulation

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