JPS6289840U - - Google Patents
Info
- Publication number
- JPS6289840U JPS6289840U JP18207585U JP18207585U JPS6289840U JP S6289840 U JPS6289840 U JP S6289840U JP 18207585 U JP18207585 U JP 18207585U JP 18207585 U JP18207585 U JP 18207585U JP S6289840 U JPS6289840 U JP S6289840U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- signal
- circuit
- contact
- generation 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.)
- Granted
Links
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Electronic Switches (AREA)
Description
第１図は、本考案の信号切換装置の一実施例の
回路図であり、第２図は、従来の信号切換装置の
一例の回路図である。
３：外部信号入力端子、４：信号発生回路、６
：次段回路、１０：スイツチ、１１，１２：コン
デンサ、１３：抵抗、１４：トランジスタ。
FIG. 1 is a circuit diagram of an embodiment of a signal switching device of the present invention, and FIG. 2 is a circuit diagram of an example of a conventional signal switching device. 3: External signal input terminal, 4: Signal generation circuit, 6
: Next-stage circuit, 10: Switch, 11, 12: Capacitor, 13: Resistor, 14: Transistor.
Claims (1)
から出力される内部信号と外部から入力される外
部信号とをスイツチで切り換えて次段回路で処理
して出力する信号切換装置において、１回路２接
点のスイツチの一方の接点をコンデンサを介して
外部信号入力端子に接続し、他方の接点を他のコ
ンデンサを介して前記信号発生回路の出力端子に
接続するとともに、前記信号発生回路の動作を制
御する制御回路に接続し、さらに前記スイツチの
共通接点を前記次段回路の入力端子に接続し、前
記スイツチが他方の接点に切り換えられていると
きは、前記次段回路の入留端子に加えられている
バイアス電圧が前記制御回路に与えられて前記信
号発生回路を動作状態とするように構成したこと
を特徴とする信号切換装置。 A signal switching device that has an internal signal generation circuit and uses a switch to switch between an internal signal output from the signal generation circuit and an external signal input from the outside, processed by the next stage circuit, and output. One contact of the switch is connected to an external signal input terminal via a capacitor, the other contact is connected to an output terminal of the signal generation circuit via another capacitor, and the operation of the signal generation circuit is controlled. The common contact of the switch is connected to the input terminal of the next stage circuit, and when the switch is switched to the other contact, the common contact of the switch is connected to the input terminal of the next stage circuit. 1. A signal switching device characterized in that said bias voltage is applied to said control circuit to put said signal generating circuit into an operating state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18207585U JPH0317469Y2 (en) | 1985-11-26 | 1985-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18207585U JPH0317469Y2 (en) | 1985-11-26 | 1985-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6289840U true JPS6289840U (en) | 1987-06-09 |
| JPH0317469Y2 JPH0317469Y2 (en) | 1991-04-12 |
Family
ID=31127538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18207585U Expired JPH0317469Y2 (en) | 1985-11-26 | 1985-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0317469Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0219022A (en) * | 1988-07-06 | 1990-01-23 | Matsushita Electric Ind Co Ltd | Signal switching circuit |
-
1985
- 1985-11-26 JP JP18207585U patent/JPH0317469Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0219022A (en) * | 1988-07-06 | 1990-01-23 | Matsushita Electric Ind Co Ltd | Signal switching circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0317469Y2 (en) | 1991-04-12 |
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