JPS6093330U - Signal switching circuit - Google Patents
Signal switching circuitInfo
- Publication number
- JPS6093330U JPS6093330U JP18579883U JP18579883U JPS6093330U JP S6093330 U JPS6093330 U JP S6093330U JP 18579883 U JP18579883 U JP 18579883U JP 18579883 U JP18579883 U JP 18579883U JP S6093330 U JPS6093330 U JP S6093330U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- switching element
- switching
- selection switch
- 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
Landscapes
- Electronic Switches (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の信号切換回路を示す回路図、第２図はこ
の考案に係る信号切換回路の実施例を示す回路図、第３
図はこの考案の応用例を示す回路図である。
４ａ、、４ｂ：Ｌ信号（第１信号）およびＲ信号（第２
信号）の入力端子、７：出力端子、９：第１定電流源回
路、１１：第２定電流源回路、Ｑ、、Ｑ１’ニスイツチ
ング素子、Ｑ２ｙ Ｑ２’ ：第２スイツチング素子、
Ｑ３？ Ｑ３’ ”第３スイツチング素子、Ｒ１，Ｒエ
フ、Ｒ□８？ Ｒ２３ｔ Ｒ２４”第１抵抗、Ｒ２゜Ｒ
１９，Ｒ２５：第２抵抗、Ｓ□：Ｌ（第１）信号選択ス
イッチ、Ｓ２：Ｒ（第２）信号選択スイッチ、Ｓ３：混
合信号選択スイッチ。FIG. 1 is a circuit diagram showing a conventional signal switching circuit, FIG. 2 is a circuit diagram showing an embodiment of the signal switching circuit according to this invention, and FIG.
The figure is a circuit diagram showing an example of application of this invention. 4a, 4b: L signal (first signal) and R signal (second signal)
signal) input terminal, 7: output terminal, 9: first constant current source circuit, 11: second constant current source circuit, Q, , Q1' switching element, Q2y Q2': second switching element,
Q3? Q3'"Third switching element, R1, R F, R□8? R23t R24" First resistor, R2゜R
19, R25: second resistor, S□: L (first) signal selection switch, S2: R (second) signal selection switch, S3: mixed signal selection switch.
Claims (1)
または混合して出力する信号切換回路であって、第１、
第２の１対のスイッチング素子を電源に対してエミッタ
ホロワ態様で並列に接続し、当該１対のスイッチング素
子における各エミッタを第１抵抗、共通の第２抵抗およ
び第１定電流源回路を介して接地に接続し、該第１定電
流源回路に対して第２定電流源回路および第３スイツチ
ング素子の直列回路を並列に接続し、前記第１スイツチ
ング素子の制御電極には第１信号入力端子を接続し、第
２スイツチング素子の制御電極には第２信号入力端子を
接続し、さらに前記第１スイツチング素子をＯＮに転じ
させる第１信号選択スイッチ、前記第２スイツチング素
子をＯＮに転じさせる第２信号選択スイッチ、および前
記第１、第２および第３の各スイッチング素子を同時に
ＯＮに転じさせる混合信号選択スイッチを配設し、前記
第２抵抗を負荷抵抗として出力端子を導出したことを特
徴とする信号切換回路。The first signal and the second signal as input signals are each independently,
or a signal switching circuit that mixes and outputs the signal, the first,
A second pair of switching elements is connected in parallel to the power supply in an emitter follower manner, and each emitter in the pair of switching elements is connected to the power source through a first resistor, a common second resistor, and a first constant current source circuit. A series circuit of a second constant current source circuit and a third switching element is connected in parallel to the first constant current source circuit, and a first signal input terminal is connected to the control electrode of the first switching element. a second signal input terminal is connected to the control electrode of the second switching element, a first signal selection switch that turns on the first switching element, and a first signal selection switch that turns on the second switching element. A two-signal selection switch and a mixed signal selection switch that simultaneously turns on each of the first, second, and third switching elements are provided, and an output terminal is derived using the second resistor as a load resistance. signal switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18579883U JPS6093330U (en) | 1983-12-02 | 1983-12-02 | Signal switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18579883U JPS6093330U (en) | 1983-12-02 | 1983-12-02 | Signal switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6093330U true JPS6093330U (en) | 1985-06-26 |
Family
ID=30401494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18579883U Pending JPS6093330U (en) | 1983-12-02 | 1983-12-02 | Signal switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6093330U (en) |
-
1983
- 1983-12-02 JP JP18579883U patent/JPS6093330U/en active Pending
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