JPS60189314A - Tracking adjusting circuit of tuner - Google Patents
Tracking adjusting circuit of tunerInfo
- Publication number
- JPS60189314A JPS60189314A JP4299884A JP4299884A JPS60189314A JP S60189314 A JPS60189314 A JP S60189314A JP 4299884 A JP4299884 A JP 4299884A JP 4299884 A JP4299884 A JP 4299884A JP S60189314 A JPS60189314 A JP S60189314A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- channel selection
- variable
- tuning
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
- H03J3/32—Arrangements for ensuring tracking with variable capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
本Ｊ！１１は、選局電圧によって可変される可変容量ダ
イオード會可変素子とする同調回路を備えて成る同調器
において、その四部回路相互間におけるトラッキング調
整會確実にして１選局精度の向上ｔはかることを目的と
した同調器のトラッキング調整１０１路に関するもので
ある。[Detailed description of the invention] Book J! 11 is to improve the accuracy of one station selection by ensuring tracking adjustment between the four circuits in a tuner comprising a tuning circuit having a variable capacitance diode variable element which is varied by the tuning voltage. This is related to the tracking adjustment 101 path of the intended tuner.
従来の電子同一器に実施されているトラッキング調整回
路は、電圧に対する周波数の関係を示す曲！に全体的に
変える調整力法であるから、アンテナ回路、高周波増幅
回路、発掘回路の各回路の曲線全合致させることが極め
て困難で完全なトラッキング−整會行うことが出来ずト
ラッキング調整手段として必ずしも満足すべきものでは
なかった。The tracking adjustment circuit implemented in conventional electronic equalizers shows the relationship of frequency to voltage! Since it is an adjustment force method that changes the entire adjustment force, it is extremely difficult to completely match the curves of the antenna circuit, high-frequency amplification circuit, and excavation circuit, and it is not possible to achieve complete tracking alignment, so it is not necessarily used as a tracking adjustment method. It wasn't something to be satisfied with.
そこで本願は、同一特性の不整合部分のみｔ補正してト
ラッキング−整を行うように構成したもので、その実施
側音以下図面について詳述する。Therefore, the present application is configured to perform tracking adjustment by t-correcting only the mismatched portions of the same characteristics, and the following drawings will be described in detail.
実施例は、アンテナ同一回路についてのみ例示している
が、同様の構成が仲の同調回路即ち高周波増ｌｌＩ＆＆
段及び局部発振段の各同調回路にも適用されるものであ
り５図において％（１１はインダクタンス索子（２）と
、同一用の可変容量ダイオード（３）と％ □補助コン
デンサ＋４１と補正用の可変容量ダイオード（５１とか
ら成るｒＷＪ調回路、 （６ｎ〜（６；４は前記同−回
路による選局範囲例えはＡＭバンドにおいて５１０にＨ
２−１６５０ＫＨ２ｔｆの選局範囲を４分割し。In the embodiment, only the same circuit for the antenna is illustrated, but a similar configuration is used for a similar tuning circuit, that is, a high frequency amplifier I&&
It is also applied to each tuning circuit of the stage and local oscillation stage, and in Figure 5, % (11 is the inductance wire (2), the variable capacitance diode (3) for the same purpose, and the % □ auxiliary capacitor +41 and the correction rWJ tuning circuit consisting of a variable capacitance diode (51), (6n ~ (6; 4 is the channel selection range by the same circuit) For example, in the AM band, H to 510
2-Divide the selection range of 1650KH2TF into 4.
その分割された選局範囲毎に対応して設けられたー整可
能な可変電圧回路で、その共通電源としてＰＬＬシンセ
サイザ回路（７）よりの選局電圧が用いられる。（８１
はＩＩＩ記ＰＬＬシンセサイザ回路（７）からの選局電
圧によって繭記可変電圧回路（６）１〜（ｔ３＋４會順
次選択すると共に、該選局電圧で選択された補正電圧回
路よりの補正電圧に！ｆしてこれを前記補正用の可変容
量・ダイオード（５）に印７ＪＴ’する例えば東芝３ｍ
！ＴＡ７６０３０ＰのＩＣ素子から成るスイッチ回路で
あり、前記した可変′電圧１ｒｉｌ路１ｆｉ・１〜（６
１４における可変電圧Ｖｉ、従来から使用されているト
ラッキング調整用の測定器轡によって股だされる。Adjustable variable voltage circuits are provided corresponding to each of the divided tuning ranges, and the tuning voltage from the PLL synthesizer circuit (7) is used as a common power source. (81
The variable voltage circuit (6) 1 to (t3+4) is sequentially selected by the channel selection voltage from the PLL synthesizer circuit (7) described in III, and the correction voltage from the correction voltage circuit selected by the channel selection voltage is applied! For example, Toshiba 3m
! This is a switch circuit consisting of an IC element of TA76030P, and the variable voltage 1ril path 1fi·1 to (6
The variable voltage Vi at 14 is determined by a conventional measuring instrument for tracking adjustment.
しかして選局に際しては、Ｐ Ｌ Ｌシンセサイザ回路
（７１からの選局電圧により同ｖ徊用司変容量ダイオー
ド（３）の容量が可変され選局が達成されることは従来
と同様であるが、前Ｍ［ｉした選局電圧の入力によりス
イッチ回路（８１が該選局電圧に対応する１つの可変電
圧回路を選択し、その選択された可変′酸圧回路からの
電圧が前Ｂビ選局電圧に重畳し、その補正電圧が補正用
の’ｉｌｉ］変容量ダイオード（５１に印加される。However, when selecting a channel, the capacitance of the V-switching capacitor diode (3) is varied by the channel selection voltage from the PLL synthesizer circuit (71), and the channel selection is achieved as in the past. , the switch circuit (81) selects one variable voltage circuit corresponding to the selected channel selection voltage, and the voltage from the selected variable voltage circuit is applied to the previous B selection. The correction voltage is superimposed on the local voltage and applied to the correction variable capacitance diode (51).
従って同１１Ａ１回路（１１における選局誤差や同訓特
性のズレなどが補正用可変ダイオード（５１に印加され
る補正′電圧によって修正され、同一回路相互間のトラ
ッキング訓整會硲実に達成することができる。Therefore, tuning errors and deviations in tuning characteristics in the same 11A1 circuit (11) can be corrected by the correction voltage applied to the correction variable diode (51), and tracking adjustment between the same circuits can be achieved. can.
牙２図はスイッチ回路として三洋製ＴＡ ７６３０Ｐの
ＩＣ素子（８１′を用い之場合のイ…の実姉例を示し丁
お９％その作動は牙１図に示す実施例の場合と同様であ
る。Figure 2 shows an actual example of the case where a Sanyo TA 7630P IC element (81') is used as a switch circuit, and its operation is the same as that of the embodiment shown in Figure 1.
なお上Ｍピ実ＷＪｆｌｌは補正重圧回路ｒ４個備えた場
合ケ例示したが５本願は補正を必要とする選局範囲の部
分に心安とする補正答菫會付加してトラッキング−整會
行りものであるから、その数は４個に限定されるもので
はない。In addition, although the example shown above is for the case where the above M-PI WJfl is equipped with 4 correction pressure circuits, the present application adds a correction answer group for peace of mind to the part of the selection range that requires correction, and performs tracking adjustment. Therefore, the number is not limited to four.
以上のよりに１本願によれば、同訓回路による選局ψ＾
囲を部分的に或いは全体的に補正して同調回路相互間の
トラッキングケ調整する構成であるから、選局の＃Ｓ度
極めて正確な調整がなされて選局精度の向上ケはかるこ
とができるものである。Based on the above, according to the present application, channel selection by the same training circuit ψ^
Since the configuration is such that the tracking between the tuning circuits is adjusted by partially or totally correcting the surrounding area, extremely accurate adjustment can be made at #S of tuning, and it is possible to improve the tuning accuracy. It is.
図面は本願の実施例會示すもので、第１図は同調回路図
、第２図はイ…の笑施を示す同ル）人１回路図である。
図中（ｌｉは同１１１１ ｌｒ、＋１路、（２Ｉはイン
ダクタンス素子、（３）は同訓用可変容瞼ダイオード、
（５１け補正用可変容量ダイオード、 （６ｎ〜（６１
４は可変電圧回路、（７）はＰＴ、 Ｌシンセサイザ回
路、（８，（８ｒ’はスイッチ回路である。
特許出願人 日本テクニカル株式会社
第１図
第２図The drawings show an embodiment of the present application, and FIG. 1 is a tuning circuit diagram, and FIG. 2 is a circuit diagram of the same circuit showing the implementation of the following. In the figure (li is the same 1111 lr, +1 path, (2I is the inductance element, (3) is the same variable capacitance diode,
(Variable capacitance diode for 51-digit correction, (6n~(61
4 is a variable voltage circuit, (7) is a PT, L synthesizer circuit, (8, (8r') is a switch circuit. Patent applicant: Japan Technical Co., Ltd. Figure 1 Figure 2
Claims (1)
オードと、該可変容重ダイオードの容を會可変する可変
電圧回路と、前記選局電圧により切換えられて前記補正
用の可変容量ダイオードに可変電圧回路の電圧ケ印加す
るスイッチ回路と會備えたことを特徴とするトラッキン
グ−整回路。 （２） 可変電圧回路上１！ｖＩ５［＊え、該回路會ス
イッチ（ロ）路により選択する％軒詣求の範囲オ１項記
載の同調器のトラッキング−整回路。[Claims] The same circuit as the variable capacitance element includes a variable capacitance diode for correction, a variable voltage circuit for varying the capacitance of the variable capacitance diode, and a variable voltage circuit that is switched by the channel selection voltage to perform the correction. A tracking and rectifying circuit characterized in that it is equipped with a switch circuit for applying a voltage of a variable voltage circuit to a variable capacitance diode. (2) 1 on the variable voltage circuit! vI5 [*E, Range of % inspection selected by the circuit switch (B) path O. Tracking-adjustment circuit for the tuner described in item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4299884A JPS60189314A (en) | 1984-03-08 | 1984-03-08 | Tracking adjusting circuit of tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4299884A JPS60189314A (en) | 1984-03-08 | 1984-03-08 | Tracking adjusting circuit of tuner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60189314A true JPS60189314A (en) | 1985-09-26 |
Family
ID=12651684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4299884A Pending JPS60189314A (en) | 1984-03-08 | 1984-03-08 | Tracking adjusting circuit of tuner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60189314A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63180208A (en) * | 1987-01-21 | 1988-07-25 | Matsushita Electric Ind Co Ltd | Receiver |
| JP2010028399A (en) * | 2008-07-17 | 2010-02-04 | Mitsumi Electric Co Ltd | On-vehicle electronic device, radio receiver, and tuning circuit |
-
1984
- 1984-03-08 JP JP4299884A patent/JPS60189314A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63180208A (en) * | 1987-01-21 | 1988-07-25 | Matsushita Electric Ind Co Ltd | Receiver |
| JP2010028399A (en) * | 2008-07-17 | 2010-02-04 | Mitsumi Electric Co Ltd | On-vehicle electronic device, radio receiver, and tuning circuit |
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