JPH0210642U - - Google Patents
Info
- Publication number
- JPH0210642U JPH0210642U JP8874888U JP8874888U JPH0210642U JP H0210642 U JPH0210642 U JP H0210642U JP 8874888 U JP8874888 U JP 8874888U JP 8874888 U JP8874888 U JP 8874888U JP H0210642 U JPH0210642 U JP H0210642U
- Authority
- JP
- Japan
- Prior art keywords
- tuning
- circuit
- switching circuit
- control signal
- switching
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Networks Using Active Elements (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Circuits Of Receivers In General (AREA)
Description
第１図はこの考案に係る同調切換回路の実施例
を示した回路図、第２図は従来例の回路図である
。
主な番号の説明、３……ＦＥＴ、４，５……第
１、第２のスイツチングダイオード、６，７……
第１、第２の同調回路、８，１０……第１、第２
の出力端子、９，１１……第１、第２の制御用電
源端子、１２，１３……第１、第２のスイツチン
グトランジスタ、１４，１５……第１、第２の制
御信号。
FIG. 1 is a circuit diagram showing an embodiment of the tuning switching circuit according to this invention, and FIG. 2 is a circuit diagram of a conventional example. Explanation of main numbers, 3...FET, 4, 5...first and second switching diodes, 6,7...
1st, 2nd tuning circuit, 8, 10... 1st, 2nd
output terminals, 9, 11... first and second control power supply terminals, 12, 13... first and second switching transistors, 14, 15... first and second control signals.
Claims (1)
ードスイツチで切換えられる第１の同調回路と、
第２の同調回路とで構成した増幅器の同調切換回
路において、 上記第１及び第２の同調回路に並列に接続した
第１及び第２のスイツチング回路とを設け、この
第１のスイツチング回路を第２の制御信号で制御
する制御手段と、第２のスイツチング回路を第１
の制御信号で制御する制御手段とを備えたことを
特徴とする同調切換回路。[Claims for Utility Model Registration] A diode switch switching circuit, a first tuning circuit switched by the diode switch,
In an amplifier tuning switching circuit configured with a second tuning circuit, first and second switching circuits connected in parallel to the first and second tuning circuits are provided, and the first switching circuit is connected to the first tuning circuit. a control means controlled by a second control signal; and a second switching circuit controlled by a first control signal.
1. A tuning switching circuit comprising: control means for controlling using a control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8874888U JPH0210642U (en) | 1988-07-04 | 1988-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8874888U JPH0210642U (en) | 1988-07-04 | 1988-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0210642U true JPH0210642U (en) | 1990-01-23 |
Family
ID=31313308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8874888U Pending JPH0210642U (en) | 1988-07-04 | 1988-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0210642U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5353373U (en) * | 1976-10-08 | 1978-05-08 |
-
1988
- 1988-07-04 JP JP8874888U patent/JPH0210642U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5353373U (en) * | 1976-10-08 | 1978-05-08 |