JPS6416763U - - Google Patents
Info
- Publication number
- JPS6416763U JPS6416763U JP11098487U JP11098487U JPS6416763U JP S6416763 U JPS6416763 U JP S6416763U JP 11098487 U JP11098487 U JP 11098487U JP 11098487 U JP11098487 U JP 11098487U JP S6416763 U JPS6416763 U JP S6416763U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- peak detection
- detection circuit
- variable gain
- gain amplifier
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 238000009499 grossing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 2
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図は、本考案の一実施例を示す回路図、及
び第２図は従来のＡＧＣ回路を示す回路図。
２…可変利得増幅回路、８…ピーク検波回路、
１２…平滑回路、１５…積分回路、１８…トラン
ジスタ、１９…ダイオード。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a conventional AGC circuit. 2...Variable gain amplifier circuit, 8...Peak detection circuit,
12 ...Smoothing circuit, 15 ...Integrator circuit, 18...Transistor, 19 ...Diode.
Claims (1)
可変利得増幅回路の出力信号をピーク検波するピ
ーク検波回路と、該ピーク検波回路の出力信号を
平滑し、利得制御信号として前記可変利得増幅回
路に印加する平滑回路とを備えるＡＧＣ回路にお
いて、前記平滑回路の端子電圧が所定値以上とな
つたことを検出し、前記ピーク検波回路を構成す
るコンデンサの強制放電を行なう放電手段を設け
たことを特徴とするＡＧＣ回路。 a variable gain amplifier circuit to which an input signal is applied; a peak detection circuit that peak-detects the output signal of the variable gain amplifier circuit; and a peak detection circuit that smoothes the output signal of the peak detection circuit and sends it as a gain control signal to the variable gain amplifier circuit. The AGC circuit includes a smoothing circuit for applying voltage, and is characterized in that a discharging means is provided for detecting that the terminal voltage of the smoothing circuit has exceeded a predetermined value and forcibly discharging a capacitor constituting the peak detection circuit. AGC circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987110984U JPH0520064Y2 (en) | 1987-07-20 | 1987-07-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987110984U JPH0520064Y2 (en) | 1987-07-20 | 1987-07-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6416763U true JPS6416763U (en) | 1989-01-27 |
| JPH0520064Y2 JPH0520064Y2 (en) | 1993-05-26 |
Family
ID=31348639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987110984U Expired - Lifetime JPH0520064Y2 (en) | 1987-07-20 | 1987-07-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0520064Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829660U (en) * | 1981-08-19 | 1983-02-25 | コスモ工機株式会社 | emergency water storage device |
| JPS59101915A (en) * | 1982-12-01 | 1984-06-12 | Hitachi Ltd | Agc circuit |
-
1987
- 1987-07-20 JP JP1987110984U patent/JPH0520064Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829660U (en) * | 1981-08-19 | 1983-02-25 | コスモ工機株式会社 | emergency water storage device |
| JPS59101915A (en) * | 1982-12-01 | 1984-06-12 | Hitachi Ltd | Agc circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0520064Y2 (en) | 1993-05-26 |