JPS61206310U - - Google Patents
Info
- Publication number
- JPS61206310U JPS61206310U JP5801086U JP5801086U JPS61206310U JP S61206310 U JPS61206310 U JP S61206310U JP 5801086 U JP5801086 U JP 5801086U JP 5801086 U JP5801086 U JP 5801086U JP S61206310 U JPS61206310 U JP S61206310U
- Authority
- JP
- Japan
- Prior art keywords
- direct connection
- connection point
- circuit
- emitter
- transistor
- 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 4
- 238000009499 grossing Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Networks Using Active Elements (AREA)
Description
第１図は従来のＡＭ検波回路を示す回路図、第
２図ａ，ｂは同回路の入出力信号の波形を示す図
、第３図は本考案のＡＭ検波回路の一実施例を示
す図、第４図ａ〜ｄは第３図で示す実施例回路の
要部の信号波形を示す図である。
１…ＡＭ中間周波信号入力端子、２…ＡＭ検波
用トランジスタ、５…出力端子、６…電源端子、
７…ＯＲ回路形成用トランジスタ、８…ＡＭ中間
周波信号の逆位相信号の入力端子、９…共通エミ
ツタ抵抗、１０…平滑抵抗、１１…平滑コンデン
サ。
Figure 1 is a circuit diagram showing a conventional AM detection circuit, Figures 2a and b are diagrams showing waveforms of input and output signals of the circuit, and Figure 3 is a diagram showing an embodiment of the AM detection circuit of the present invention. , and FIGS. 4a to 4d are diagrams showing signal waveforms of main parts of the embodiment circuit shown in FIG. 3. 1...AM intermediate frequency signal input terminal, 2...AM detection transistor, 5...output terminal, 6...power supply terminal,
7...Transistor for forming an OR circuit, 8...Input terminal for an opposite phase signal of the AM intermediate frequency signal, 9...Common emitter resistor, 10...Smoothing resistor, 11...Smoothing capacitor.
Claims (1)
トランジスタとベースに前記ＡＭ中間周波信号と
は逆位相の信号が印加される第２のトランジスタ
とのコレクタ同志およびエミツタ同志をそれぞれ
直結してＯＲ回路を構成するとともに、前記コレ
クタの直結点を電源端子へ、前記エミツタの直結
点を共通エミツタ抵抗を介して接地点へそれぞれ
接続するとともに、前記エミツタの直結点に生じ
る信号を平滑する抵抗素子とコンデンサとからな
る平滑回路を設け、前記平滑回路の平滑出力発生
点に出力端子を付設してなることを特徴とするＡ
Ｍ検波回路。 An OR circuit is formed by directly connecting the collectors and emitters of a first transistor to which an AM intermediate frequency signal is applied to its base and a second transistor to which a signal having an opposite phase to the AM intermediate frequency signal is applied to its base. and a resistive element and a capacitor that connect the direct connection point of the collector to the power supply terminal and the direct connection point of the emitter to the ground point via a common emitter resistor, and smooth the signal generated at the direct connection point of the emitter. A, characterized in that a smoothing circuit is provided, and an output terminal is attached to a smoothed output generation point of the smoothing circuit.
M detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5801086U JPS61206310U (en) | 1986-04-17 | 1986-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5801086U JPS61206310U (en) | 1986-04-17 | 1986-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61206310U true JPS61206310U (en) | 1986-12-26 |
Family
ID=30583094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5801086U Pending JPS61206310U (en) | 1986-04-17 | 1986-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61206310U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50141956A (en) * | 1974-04-04 | 1975-11-15 | ||
| JPS50156352A (en) * | 1974-05-09 | 1975-12-17 |
-
1986
- 1986-04-17 JP JP5801086U patent/JPS61206310U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50141956A (en) * | 1974-04-04 | 1975-11-15 | ||
| JPS50156352A (en) * | 1974-05-09 | 1975-12-17 |