JPS59149719U - Multi-band electronically tuned receiver - Google Patents
Multi-band electronically tuned receiverInfo
- Publication number
- JPS59149719U JPS59149719U JP4378983U JP4378983U JPS59149719U JP S59149719 U JPS59149719 U JP S59149719U JP 4378983 U JP4378983 U JP 4378983U JP 4378983 U JP4378983 U JP 4378983U JP S59149719 U JPS59149719 U JP S59149719U
- Authority
- JP
- Japan
- Prior art keywords
- band
- tuning circuit
- tuning
- electronic
- hand
- 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
- 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図は従来の複数バンドの電子同調受信機を示す回路
図、第２図イ、 ｏｃま電子スイッチのブロック図及
び電子スイッチの等価回路図、第３図イ。
口は複数の同調回路を機械スイッチで切換える場合、及
び電子スイッチで切換える場合の等価回路図、第４図は
本考案に係る複数バンドの電子同調受信機の一実施例を
示す回路図、第５図イ９口は発振同調回路の等価回路図
、第６図イ１口はアンテナ同調回路の等価回路図である
。
８・・・・・・長波ハンド用発振同調回路、９・・・・
・・中波バンド用発振同調回路、２１０・・・・・・長
波バンド用アンテナ同調回路、１１・・・・・・中波バ
ンド用アンテナ同調回路、Ｓｌ・・・・・・バンド切換
スイッチ、ＳＷｌ。
ＳＷ２．ＳＷ３．ＳＷ４・・・・・・電子スイッチ、Ｄ
５．ＤＧ・・・・・・可変容量ダイオード、ＱＩ＋ Ｑ
２＋ Ｑ３＊ Ｑ４・・・・・・スーイツチングトラン
ジスタ。
９Ｎ＆ ９＃３
ｎｌｌｆｌｆｆ ０Ｌｆｆ／ＩＮ ｕＪ１７１Ｎ
ＩＮＪＩＪＬＪＩ ＬＬＪＮＩＺ ＬＩＪｆｌｌＪ
ＷＳＳｂＷｌ ｂＷ２
帆５図 、−−ｔ１で −
＋Ｄｓ ＴＣ２FIG. 1 is a circuit diagram showing a conventional multi-band electronic tuning receiver, FIG. 2A is a block diagram of an electronic switch, and FIG. 3A is an equivalent circuit diagram of an electronic switch. Figure 4 is an equivalent circuit diagram when multiple tuning circuits are switched by a mechanical switch and when they are switched by an electronic switch; Figure 4 is a circuit diagram showing an embodiment of a multi-band electronic tuning receiver according to the present invention; Figure A9 is an equivalent circuit diagram of the oscillation tuning circuit, and Figure 6A is an equivalent circuit diagram of the antenna tuning circuit. 8...Oscillation tuning circuit for long wave hand, 9...
...Oscillation tuning circuit for medium wave band, 210...Antenna tuning circuit for long wave band, 11...Antenna tuning circuit for medium wave band, Sl...Band selection switch, SWl. SW2. SW3. SW4...Electronic switch, D
5. DG...Variable capacitance diode, QI+Q
2+ Q3* Q4...Switching transistor. 9N &9#3 nllflff 0Lff/IN uJ171N
INJIJLJI LLJNIZ LIJflllJ
WSSbWl bW2 Sail 5 figure, - at t1 - +Ds TC2
Claims (2)
回路と、バンド切換スイッチとを備え、前記第１のハン
ド用同調回路と前記第２のバンド用同調回路との間に可
変容量ダイオードを接続してなる複数バンドの電子同調
受信機であって、前記ハンド切換スイツＬにてＯＮ、Ｏ
ＦＦ制御され、第１のバンド受信時前記第２のハンド用
同調回路を短絡するとともに第２のバンド受信時前記第
１のバンド用同調回路を短絡するスイッチング素子を設
け、前記可変容量ダイオードを前記第１第２のバンド用
同調回路に共用するようにしたことを特徴とする複数バ
ンドの電子同調受信機。(1) A tuning circuit for a first band, a tuning circuit for a second band, and a band changeover switch; A multi-band electronic tuning receiver formed by connecting capacitive diodes, which can be turned ON or OFF by the hand switching switch L.
A switching element is provided which is FF-controlled and short-circuits the second hand tuning circuit when receiving the first band and short-circuiting the first band tuning circuit when receiving the second band. 1. An electronic tuning receiver for multiple bands, characterized in that the tuning circuit is shared by a first and second band tuning circuit.
路とを、バンド切換スイッチにて制御される電子スイッ
チにて選択的に切換えるようにしたことを特徴とする実
用新案登録請求の範囲第１項記載の複数バンドの電子同
調受信機。(2) A utility model registration request characterized in that the first hand tuning circuit and the second band tuning circuit are selectively switched by an electronic switch controlled by a band changeover switch. A multi-band electronically tuned receiver according to scope 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4378983U JPS59149719U (en) | 1983-03-25 | 1983-03-25 | Multi-band electronically tuned receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4378983U JPS59149719U (en) | 1983-03-25 | 1983-03-25 | Multi-band electronically tuned receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59149719U true JPS59149719U (en) | 1984-10-06 |
Family
ID=30174325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4378983U Pending JPS59149719U (en) | 1983-03-25 | 1983-03-25 | Multi-band electronically tuned receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59149719U (en) |
-
1983
- 1983-03-25 JP JP4378983U patent/JPS59149719U/en active Pending
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