JPH01124585U - - Google Patents
Info
- Publication number
- JPH01124585U JPH01124585U JP1965488U JP1965488U JPH01124585U JP H01124585 U JPH01124585 U JP H01124585U JP 1965488 U JP1965488 U JP 1965488U JP 1965488 U JP1965488 U JP 1965488U JP H01124585 U JPH01124585 U JP H01124585U
- Authority
- JP
- Japan
- Prior art keywords
- diode
- anode
- cathode
- signal
- resistor
- 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
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Control Of Amplification And Gain Control (AREA)
Description
第１図と第２図は、本考案の第１の実施例と第
２の実施例の回路図、第３図は、受信波の状態説
明図、第４図と第５図はそれぞれ一般のＡＧＣ回
路を含むソナー装置のブロツク図と従来のＡＧＣ
回路の回路図である。
１……送信器、２……送受転換器、３……送受
波器、４……前置増幅器、５……ＡＧＣ回路、６
……増幅器、７……検波回路、８……時定数回路
、５０……極性反転部、５１……ＡＧＣ回路網、
５２……平衡―不平衡回路。
Figures 1 and 2 are circuit diagrams of the first and second embodiments of the present invention, Figure 3 is an explanatory diagram of the state of received waves, and Figures 4 and 5 are general diagrams, respectively. Block diagram of a sonar device including AGC circuit and conventional AGC
It is a circuit diagram of a circuit. 1... Transmitter, 2... Transmitter/receiver, 3... Transducer, 4... Preamplifier, 5... AGC circuit, 6
...Amplifier, 7...Detection circuit, 8...Time constant circuit, 50...Polarity inversion section, 51...AGC circuit network,
52...Balanced-unbalanced circuit.
Claims (1)
するソナー用ＡＧＣ回路において、 入力信号を分岐して互いに極性が反転した同一
レベルの第１の信号と第２の信号とに変換する極
性反転手段と、 第１のダイオードのカソードが抵抗を介して第
３のダイオードのアノードに接続され、前記第１
のダイオードと同特性の第２のダイオードのカソ
ードが抵抗を介して前記第３のダイオードと同特
性の第４のダイオードのアノードに接続され、前
記第１のダイオードのアノードおよび前記第２の
ダイオードのアノードの共通接続点と前記第３の
ダイオードのカソードおよび前記第４のダイオー
ドのカソードの共通接続点との間に制御電圧を印
加し、前記第１のダイオードのカソードと前記第
２のダイオードのカソードとに前記極性反転手段
から出力された前記第１の信号と前記第２の信号
とをそれぞれ印加し、前記第３のダイオードのア
ノードと前記第４のダイオードのアノードとを出
力端子とするように構成されたＡＧＣ回路網と、 前記出力端子に接続された平衡―不平衡変換回
路とを備えたことを特徴とするＡＧＣ回路。[Claims for Utility Model Registration] In a sonar AGC circuit that controls the gain of received waves superimposed on reverberant waves from underwater, an input signal is split and a first signal of the same level and a second signal with opposite polarities are split. a polarity reversing means for converting the signal into a signal, and a cathode of the first diode is connected to an anode of a third diode via a resistor, and the cathode of the first diode is connected to the anode of the third diode;
The cathode of a second diode having the same characteristics as the diode is connected to the anode of a fourth diode having the same characteristics as the third diode through a resistor, and the anode of the first diode and the second diode are connected to each other via a resistor. A control voltage is applied between a common connection point of the anode and a common connection point of the cathode of the third diode and the cathode of the fourth diode, and the cathode of the first diode and the cathode of the second diode are connected to each other. The first signal and the second signal outputted from the polarity inverting means are respectively applied to the terminals, and the anode of the third diode and the anode of the fourth diode are used as output terminals. An AGC circuit comprising: a configured AGC circuit network; and a balanced-unbalanced conversion circuit connected to the output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1965488U JPH01124585U (en) | 1988-02-16 | 1988-02-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1965488U JPH01124585U (en) | 1988-02-16 | 1988-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01124585U true JPH01124585U (en) | 1989-08-24 |
Family
ID=31235354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1965488U Pending JPH01124585U (en) | 1988-02-16 | 1988-02-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01124585U (en) |
-
1988
- 1988-02-16 JP JP1965488U patent/JPH01124585U/ja active Pending
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