JPS5531348A - Automatic frequency control circuit - Google Patents
Automatic frequency control circuitInfo
- 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
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
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)
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 |
-
1978
- 1978-08-28 JP JP10467078A patent/JPS5531348A/en active Pending
Cited By (3)
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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