JPS6011531U - Reception band switching circuit - Google Patents
Reception band switching circuitInfo
- Publication number
- JPS6011531U JPS6011531U JP10101783U JP10101783U JPS6011531U JP S6011531 U JPS6011531 U JP S6011531U JP 10101783 U JP10101783 U JP 10101783U JP 10101783 U JP10101783 U JP 10101783U JP S6011531 U JPS6011531 U JP S6011531U
- Authority
- JP
- Japan
- Prior art keywords
- switching
- reception band
- switching circuit
- control terminal
- band 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
Landscapes
- Filters And Equalizers (AREA)
- Electronic Switches (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (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・・・・・・従来知られている受信帯域切換回路
の回路図、第２図・・・・・・この考案の実施例である
受信帯域切換回路の回路図。
１・・・・・・アンテナ、２・・・・・・高周波増幅器
、３・・・・・・電圧切換回路、４・・・・・・ファン
クションスイッチ、Ｄｌａ、 Ｄｌｂ・・・・・・Ｄｎ
ａ、 Ｄｎｂ・・・・・・スイッチングダイオード、Ｊ
□ｘ Ｊ２・・・・・・Ｊｎ・・・・・・切換制御端子
、Ｔ１． Ｔ。
・・・・・・Ｔｎ・・・・・・同調用コイル。FIG. 1 is a circuit diagram of a conventionally known reception band switching circuit, and FIG. 2 is a circuit diagram of a reception band switching circuit that is an embodiment of this invention. 1...Antenna, 2...High frequency amplifier, 3...Voltage switching circuit, 4...Function switch, Dla, Dlb...Dn
a, Dnb...Switching diode, J
□x J2...Jn...Switching control terminal, T1. T.・・・・・・Tn・・・・・・Tuning coil.
Claims (1)
間にそれぞれ２個のスイッチングダイオードを直列に接
続し、それぞれの切換ル制御端子側に接続されたスイッ
チングダイオードのアノードおよびカソードに各受信帯
域ごとに設けられた同゛ 調相コイルの２つのアース側
端子をそれぞれ接続し、各切換ル制御端子に加える電圧
を変化させてスイッチングタイオードを導通制御するこ
とにより同調用コイルを切り換えることを特徴とする受
信帯域切換回路。Two switching diodes are connected in series between the switching control terminal provided for each reception band and the ground, and the anode and cathode of the switching diode connected to the switching control terminal side are connected to each reception band. The tuning coil is switched by connecting the two ground side terminals of the phase-tuning coil provided in each switch, and controlling the conduction of the switching diode by changing the voltage applied to each switching loop control terminal. Reception band switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10101783U JPS6011531U (en) | 1983-07-01 | 1983-07-01 | Reception band switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10101783U JPS6011531U (en) | 1983-07-01 | 1983-07-01 | Reception band switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6011531U true JPS6011531U (en) | 1985-01-26 |
Family
ID=30238724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10101783U Pending JPS6011531U (en) | 1983-07-01 | 1983-07-01 | Reception band switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6011531U (en) |
-
1983
- 1983-07-01 JP JP10101783U patent/JPS6011531U/en active Pending
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