JPH01105234U - - Google Patents
Info
- Publication number
- JPH01105234U JPH01105234U JP20087187U JP20087187U JPH01105234U JP H01105234 U JPH01105234 U JP H01105234U JP 20087187 U JP20087187 U JP 20087187U JP 20087187 U JP20087187 U JP 20087187U JP H01105234 U JPH01105234 U JP H01105234U
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor element
- signal path
- voltage applied
- whose
- receiving device
- 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
- 230000001629 suppression Effects 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims 4
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Noise Elimination (AREA)
Description
第１図は、一実施例のノイズ抑圧回路を接続し
た受信装置の回路図、第２図は、ダイオードの電
圧―電流特性図、第３図ａ〜ｃは、一実施例の動
作を説明するための信号波形図、第４図は従来回
路の一例を示すブロツク図である。
２０……高周波増幅部、２５……ノイズ抑圧回
路、Ｔ１……同調回路、Ｄ１……ダイオード、Ｒ
２……抵抗、Ｃ４……コンデンサ。
Fig. 1 is a circuit diagram of a receiving device connected to the noise suppression circuit of one embodiment, Fig. 2 is a voltage-current characteristic diagram of a diode, and Figs. 3 a to c explain the operation of one embodiment. FIG. 4 is a block diagram showing an example of a conventional circuit. 20... High frequency amplification section, 25... Noise suppression circuit, T1... Tuning circuit, D1... Diode, R
2...Resistor, C4...Capacitor.
Claims (1)
側との間に印加される順方向電圧が大きくなるに
つれて両端間の等価抵抗が減少する半導体素子と
、 前記半導体素子の他端側と交流的アース電位と
の間に接続され、前記半導体素子の両端に印加さ
れる電圧を定常的に制限し、前記半導体素子を介
して前記信号経路から伝達されるパルス性のノイ
ズ信号に対して過渡的に低抵抗を示す切換手段か
らなるノイズ抑圧回路。[Claims for Utility Model Registration] A semiconductor element whose one end is connected to a signal path of a receiving device and whose equivalent resistance between both ends decreases as a forward voltage applied between the semiconductor element and the other end increases; is connected between the other end of the element and an alternating current ground potential, constantly limits the voltage applied to both ends of the semiconductor element, and controls the pulse nature of the voltage transmitted from the signal path through the semiconductor element. A noise suppression circuit consisting of switching means that transiently exhibits low resistance to noise signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20087187U JPH01105234U (en) | 1987-12-29 | 1987-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20087187U JPH01105234U (en) | 1987-12-29 | 1987-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01105234U true JPH01105234U (en) | 1989-07-14 |
Family
ID=31491260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20087187U Pending JPH01105234U (en) | 1987-12-29 | 1987-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01105234U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62258506A (en) * | 1986-04-29 | 1987-11-11 | Yokogawa Hewlett Packard Ltd | Frequency multiplier |
-
1987
- 1987-12-29 JP JP20087187U patent/JPH01105234U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62258506A (en) * | 1986-04-29 | 1987-11-11 | Yokogawa Hewlett Packard Ltd | Frequency multiplier |
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