JPS645513U - - Google Patents
Info
- Publication number
- JPS645513U JPS645513U JP10024487U JP10024487U JPS645513U JP S645513 U JPS645513 U JP S645513U JP 10024487 U JP10024487 U JP 10024487U JP 10024487 U JP10024487 U JP 10024487U JP S645513 U JPS645513 U JP S645513U
- Authority
- JP
- Japan
- Prior art keywords
- oscillation
- oscillator
- colpitts
- transistor
- coupling 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
- 230000010355 oscillation Effects 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Description
第１図はこの考案の一実施例を示す回路図であ
る。第２図はこの考案の背景となる発振器の一例
を示す回路図である。
図において、１０は発振器、１２はコルピツツ
発振回路、１８は発振用トランジスタ、２２は結
合用コンデンサ、２４はバツフアアンプ回路、２
６は増幅用トランジスタを示す。
FIG. 1 is a circuit diagram showing an embodiment of this invention. FIG. 2 is a circuit diagram showing an example of an oscillator which is the background of this invention. In the figure, 10 is an oscillator, 12 is a Colpitts oscillation circuit, 18 is an oscillation transistor, 22 is a coupling capacitor, 24 is a buffer amplifier circuit, 2
6 indicates an amplification transistor.
Claims (1)
路と、結合用コンデンサを介して前記コルピツツ
発振回路に接続され、かつ増幅用トランジスタを
有するバツフアアンプ回路とを含む発振器であつ
て、 前記コルピツツ発振回路の前記発振用トランジ
スタのエミツタ―接地間の容量を前記結合用コン
デンサおよび前記バツフアアンプ回路の前記増幅
用トランジスタの内部容量で構成した、発振器。[Claims for Utility Model Registration] An oscillator including a Colpitts oscillation circuit having an oscillation transistor, and a buffer amplifier circuit connected to the Colpitts oscillation circuit via a coupling capacitor and having an amplification transistor, the Colpitts oscillator comprising: An oscillator, wherein the emitter-ground capacitance of the oscillation transistor of the oscillation circuit is constituted by the coupling capacitor and the internal capacitance of the amplification transistor of the buffer amplifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024487U JPS645513U (en) | 1987-06-29 | 1987-06-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10024487U JPS645513U (en) | 1987-06-29 | 1987-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS645513U true JPS645513U (en) | 1989-01-12 |
Family
ID=31328150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10024487U Pending JPS645513U (en) | 1987-06-29 | 1987-06-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS645513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0312798U (en) * | 1989-06-21 | 1991-02-08 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190004A (en) * | 1984-03-09 | 1985-09-27 | Matsushita Electric Ind Co Ltd | Oscillating circuit |
| JPS61244104A (en) * | 1985-04-22 | 1986-10-30 | Nec Corp | Oscillation circuit |
-
1987
- 1987-06-29 JP JP10024487U patent/JPS645513U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190004A (en) * | 1984-03-09 | 1985-09-27 | Matsushita Electric Ind Co Ltd | Oscillating circuit |
| JPS61244104A (en) * | 1985-04-22 | 1986-10-30 | Nec Corp | Oscillation circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0312798U (en) * | 1989-06-21 | 1991-02-08 |
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