JPS63133726U - - Google Patents
Info
- Publication number
- JPS63133726U JPS63133726U JP2512087U JP2512087U JPS63133726U JP S63133726 U JPS63133726 U JP S63133726U JP 2512087 U JP2512087 U JP 2512087U JP 2512087 U JP2512087 U JP 2512087U JP S63133726 U JPS63133726 U JP S63133726U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- tuning
- frequency
- output
- error
- 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
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Description
第１図は、本考案に係るＡＭ受信機の一実施例
を説明する為の回路図である。
１：アンテナ同調回路、２：高周波同調回路、
３：局部発振回路、４：中間周波増幅回路、５：
ＡＭステレオ復調回路用の半導体集積回路、６：
平滑回路、７：時定数回路、８：誤差増幅回路、
９：基準電圧調整用の可変抵抗、１０：逆流阻止
用ダイオード、１１：同調電圧源。
FIG. 1 is a circuit diagram for explaining an embodiment of an AM receiver according to the present invention. 1: Antenna tuning circuit, 2: High frequency tuning circuit,
3: Local oscillation circuit, 4: Intermediate frequency amplification circuit, 5:
Semiconductor integrated circuit for AM stereo demodulation circuit, 6:
smoothing circuit, 7: time constant circuit, 8: error amplification circuit,
9: Variable resistor for adjusting reference voltage, 10: Backflow blocking diode, 11: Tuning voltage source.
Claims (1)
イオードが用いられ所望の受信周波数に同調を取
るＡＭ受信機に於いて、前記同調回路と局部発振
回路に同調電圧を供給して所望の受信周波数に同
調を取る手段、該受信周波数の中心周波数のずれ
を直流出力として得る周波数−電圧変換回路、該
直流出力が供給される誤差増幅回路とを含み、該
誤差増幅回路の基準電圧源を調整して得られる誤
差電圧を該同調回路のみに供給してトラツキング
エラーを補正することを特徴とするＡＭ受信機。 (2) 前記周波数−電圧変換回路からの出力が平
滑回路及び時定数回路を介して供給される該誤差
増幅回路を具えた実用新案登録請求の範囲第１項
記載のＡＭ受信機。[Claims for Utility Model Registration] (1) In an AM receiver in which a varicap diode is used in a tuning circuit and a local oscillation circuit to tune to a desired reception frequency, a tuning voltage is applied to the tuning circuit and the local oscillation circuit. a frequency-to-voltage conversion circuit that obtains a shift in the center frequency of the reception frequency as a DC output; and an error amplification circuit to which the DC output is supplied; An AM receiver characterized in that a tracking error is corrected by supplying an error voltage obtained by adjusting a reference voltage source to only the tuning circuit. (2) The AM receiver according to claim 1, which includes the error amplification circuit to which the output from the frequency-voltage conversion circuit is supplied via a smoothing circuit and a time constant circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2512087U JPS63133726U (en) | 1987-02-23 | 1987-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2512087U JPS63133726U (en) | 1987-02-23 | 1987-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63133726U true JPS63133726U (en) | 1988-09-01 |
Family
ID=30824977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2512087U Pending JPS63133726U (en) | 1987-02-23 | 1987-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63133726U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5915320A (en) * | 1982-07-15 | 1984-01-26 | Sanyo Electric Co Ltd | Radio receiver |
-
1987
- 1987-02-23 JP JP2512087U patent/JPS63133726U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5915320A (en) * | 1982-07-15 | 1984-01-26 | Sanyo Electric Co Ltd | Radio receiver |
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