JPS5619206A - Voltage control type oscillating circuit - Google Patents
Voltage control type oscillating circuitInfo
- Publication number
- JPS5619206A JPS5619206A JP9377579A JP9377579A JPS5619206A JP S5619206 A JPS5619206 A JP S5619206A JP 9377579 A JP9377579 A JP 9377579A JP 9377579 A JP9377579 A JP 9377579A JP S5619206 A JPS5619206 A JP S5619206A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- trq
- phase
- resistance
- capacitor
- 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 reduce the variance element of the oscillation frequency by providing a buffer amplifier between the tank circuit and the phase-shifting circuit consisting of the serial circuit of the resistance, the capacitor and the resistance.
CONSTITUTION: The output of the vector adder circuit consisting of differential transistors (TR)Q1∼Q4 is obtained via the current Miller circuit comprising the diode or TRQ9 and TRQ10 connected to the diode and then supplied to LC tank circuit 2 consisting of coil L1, capacitor C and resistance R3. Then TRQ10 forms a tuning amplifying circuit using circuit 2 as the load. This tuning output is supplied to phase-shifting circuit 3 via the emitter-follower circuit comprising resistance R8 plus TRQ11 forming a buffer amplifier. Then the signals across capacitor C4 are supplied in the form of the phase-shift output to the bases of differential amplifying TRQ5 and TRQ8 which produce the input signal source of the vector adder circuit. And the phase-shift output of the other side is applied to the base of TRQ5 via the buffer amplifier. As a result, the effect of the element is eliminated at the side of the phase-shifting circuit, thus reducing the variance element of the oscillation frequency.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9377579A JPS5619206A (en) | 1979-07-25 | 1979-07-25 | Voltage control type oscillating circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9377579A JPS5619206A (en) | 1979-07-25 | 1979-07-25 | Voltage control type oscillating circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5619206A true JPS5619206A (en) | 1981-02-23 |
Family
ID=14091788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9377579A Pending JPS5619206A (en) | 1979-07-25 | 1979-07-25 | Voltage control type oscillating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5619206A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0383055U (en) * | 1989-12-09 | 1991-08-23 | ||
JPH0385864U (en) * | 1989-12-25 | 1991-08-30 | ||
JPH04349834A (en) * | 1991-07-27 | 1992-12-04 | Takeshi Hayashi | Crawl apparatus |
-
1979
- 1979-07-25 JP JP9377579A patent/JPS5619206A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0383055U (en) * | 1989-12-09 | 1991-08-23 | ||
JPH0385864U (en) * | 1989-12-25 | 1991-08-30 | ||
JPH04349834A (en) * | 1991-07-27 | 1992-12-04 | Takeshi Hayashi | Crawl apparatus |
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