JPH0191314U - - Google Patents
Info
- Publication number
- JPH0191314U JPH0191314U JP18623987U JP18623987U JPH0191314U JP H0191314 U JPH0191314 U JP H0191314U JP 18623987 U JP18623987 U JP 18623987U JP 18623987 U JP18623987 U JP 18623987U JP H0191314 U JPH0191314 U JP H0191314U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- frequency amplification
- detection
- amplification circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は、本考案によるレベル制御回路および
その使用例のブロツク図。第２図、第３図は、従
来のレベル制御回路ブロツク図である。
それぞれのブロツクは以下に示す。１…信号源
、２…増幅回路、４…レベル検出回路、５…制御
電圧出力回路、６…可変容量ダイオード。
FIG. 1 is a block diagram of a level control circuit according to the present invention and an example of its use. FIGS. 2 and 3 are block diagrams of conventional level control circuits. Each block is shown below. DESCRIPTION OF SYMBOLS 1... Signal source, 2... Amplification circuit, 4... Level detection circuit, 5... Control voltage output circuit, 6... Variable capacitance diode.
Claims (1)
端とその前段回路の出力端との間に直列に介装さ
れた可変容量ダイオードと、前記高周波増幅回路
の出力信号を分岐して入力しこれを平滑して検出
電圧として出力するレベル検出回路と、前記検出
電圧を前記可変容量ダイオードに逆バイアス電圧
として加えると共に前記高周波増幅回路にＡＧＣ
電圧として加える制御電圧出力回路とを備えたこ
とを特徴とする高周波信号のレベル制御回路。 a high-frequency amplification circuit; a variable capacitance diode connected in series between the input terminal of the high-frequency amplification circuit and the output terminal of the preceding stage circuit; and a branched output signal of the high-frequency amplification circuit, which is input and smoothed. a level detection circuit that applies the detection voltage to the variable capacitance diode as a reverse bias voltage and outputs the detection voltage as a detection voltage;
A level control circuit for a high frequency signal, comprising a control voltage output circuit that applies the voltage as a voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18623987U JPH0191314U (en) | 1987-12-07 | 1987-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18623987U JPH0191314U (en) | 1987-12-07 | 1987-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0191314U true JPH0191314U (en) | 1989-06-15 |
Family
ID=31477472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18623987U Pending JPH0191314U (en) | 1987-12-07 | 1987-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0191314U (en) |
-
1987
- 1987-12-07 JP JP18623987U patent/JPH0191314U/ja active Pending
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