JPS57186806A - Higher harmonic cenerating circuit - Google Patents
Higher harmonic cenerating circuitInfo
- Publication number
- JPS57186806A JPS57186806A JP7257181A JP7257181A JPS57186806A JP S57186806 A JPS57186806 A JP S57186806A JP 7257181 A JP7257181 A JP 7257181A JP 7257181 A JP7257181 A JP 7257181A JP S57186806 A JPS57186806 A JP S57186806A
- Authority
- JP
- Japan
- Prior art keywords
- higher harmonic
- frequency
- oscillator
- gain
- optional
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Abstract
PURPOSE:To easily execute adjustment with high accuracy, by changing the oscillation frequency of a voltage control oscillator by the same frequency step as frequency intervals of a higher harmonic, so that the gain can be controlled against one optional wave of the higher harmonic. CONSTITUTION:An output of a quartz oscillator 1 generates a higher harmonic group up to its higher order by a higher harmonic generator 2. Subsequently, an output of the higher harmonic generator 2 is supplied to a gain controller 4 after the frequency characteristics have been almost flattened by a frequency characteristic correcting circuit 3. A mixer 6 changes the oscillation frequency of a voltage control oscillator 10 by the same frequency step as frequency intervals of a higher harmonic outputted from this amplifier 4. As a result, the mixer 6 always fetches a constant frequency from an optional one wave of the higher harmonic and the oscillation frequency of the oscillator 10, filters 7 and detects 8 it, converts it to DC voltage corresponding to an output level, DC-amplifiers 9 it, and after that, feeds it back as control voltage of the amplifier, by which the gain is controlled against one optional wave of the higher harmonic.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7257181A JPS57186806A (en) | 1981-05-12 | 1981-05-12 | Higher harmonic cenerating circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7257181A JPS57186806A (en) | 1981-05-12 | 1981-05-12 | Higher harmonic cenerating circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57186806A true JPS57186806A (en) | 1982-11-17 |
Family
ID=13493186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7257181A Pending JPS57186806A (en) | 1981-05-12 | 1981-05-12 | Higher harmonic cenerating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57186806A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0434008U (en) * | 1990-07-17 | 1992-03-19 |
-
1981
- 1981-05-12 JP JP7257181A patent/JPS57186806A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0434008U (en) * | 1990-07-17 | 1992-03-19 |
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