JPS61146015U - - Google Patents
Info
- Publication number
- JPS61146015U JPS61146015U JP2829885U JP2829885U JPS61146015U JP S61146015 U JPS61146015 U JP S61146015U JP 2829885 U JP2829885 U JP 2829885U JP 2829885 U JP2829885 U JP 2829885U JP S61146015 U JPS61146015 U JP S61146015U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- open
- output transistor
- switching circuit
- switches
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Studio Circuits (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第１図は、この考案の信号切り換え装置の一実
施例を示す回路構成図、第２図は、従来の信号切
り換え装置の一例を示す回路構成図である。
１１……信号切り換え装置、２……切り換え回
路、１３……ベースバイアス回路、Ａ１〜Ａｎ…
…信号入力端子、Ｃ１〜Ｃｎ……結合コンデンサ
、Ｓ１〜Ｓｎ……開閉スイツチ、Ｑ……出力トラ
ンジスタ、Ｂ……信号出力端子。
FIG. 1 is a circuit diagram showing an embodiment of the signal switching device of this invention, and FIG. 2 is a circuit diagram showing an example of a conventional signal switching device. 11...Signal switching device, 2...Switching circuit, 13...Base bias circuit, A1 to An...
...Signal input terminal, C1 -Cn...Coupling capacitor, S1- Sn ...Open/close switch, Q...Output transistor, B...Signal output terminal.
Claims (1)
結合コンデンサを介して接続された複数の開閉ス
イツチが択一的に閉成され、信号線路の切り換え
を行う切り換え回路と、この切り換え回路の出力
端子にベースが接続された出力トランジスタと、
前記各開閉スイツチの各入力接点側に接続され、
前記出力トランジスタに一定のベース電圧を供給
するベースバイアス回路とから構成してなる信号
切り換え装置。 A switching circuit that selectively closes a plurality of signal input terminals, a plurality of open/close switches connected to each signal input terminal via a coupling capacitor, and switches the signal line, and an output terminal of this switching circuit. an output transistor whose base is connected to;
connected to each input contact side of each open/close switch,
A signal switching device comprising a base bias circuit that supplies a constant base voltage to the output transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2829885U JPS61146015U (en) | 1985-02-28 | 1985-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2829885U JPS61146015U (en) | 1985-02-28 | 1985-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61146015U true JPS61146015U (en) | 1986-09-09 |
Family
ID=30526045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2829885U Pending JPS61146015U (en) | 1985-02-28 | 1985-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61146015U (en) |
-
1985
- 1985-02-28 JP JP2829885U patent/JPS61146015U/ja active Pending
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