JPH0282125U - - Google Patents
Info
- Publication number
- JPH0282125U JPH0282125U JP16142688U JP16142688U JPH0282125U JP H0282125 U JPH0282125 U JP H0282125U JP 16142688 U JP16142688 U JP 16142688U JP 16142688 U JP16142688 U JP 16142688U JP H0282125 U JPH0282125 U JP H0282125U
- Authority
- JP
- Japan
- Prior art keywords
- level
- output signal
- input signal
- control section
- automatic
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
第１図の回路における信号波形を示すタイムチヤ
ートであり、ａ，ｂ，ｃは本考案にかかる入力、
利得、出力の各信号図、ｄ及びｅは従来における
利得、出力の各信号を示している。
１……入力端子、２……可変減衰器、３……増
幅器、４……出力端子、５……出力信号レベル検
出器、６……ＡＬＣ制御部、７……入力信号検出
器、８……比較制御部。
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a time chart showing signal waveforms in the circuit of FIG. 1, where a, b, and c are inputs according to the present invention;
In the gain and output signal diagrams, d and e indicate the conventional gain and output signals. DESCRIPTION OF SYMBOLS 1...Input terminal, 2...Variable attenuator, 3...Amplifier, 4...Output terminal, 5...Output signal level detector, 6...ALC control section, 7...Input signal detector, 8... ...Comparison control section.
Claims (1)
出器と、この出力信号レベル検出器の検出レベル
に基づいて利得を制御する自動レベル制御部とを
備える無線送信機において、前記入力信号のレベ
ルを検出する入力信号検出部と、この検出された
入力信号レベルを設定値と比較し、該検出レベル
が設定値以下のときに前記自動レベル制御部によ
る利得制御を抑制する比較制御部とを備えること
を特徴とする送信機の自動レベル制御回路。 Detecting the level of the input signal in a wireless transmitter comprising an output signal level detector that detects the level of the output signal, and an automatic level control section that controls the gain based on the detection level of the output signal level detector. It is characterized by comprising an input signal detection section and a comparison control section that compares the detected input signal level with a set value and suppresses gain control by the automatic level control section when the detected level is less than the set value. automatic level control circuit for the transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16142688U JPH0282125U (en) | 1988-12-13 | 1988-12-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16142688U JPH0282125U (en) | 1988-12-13 | 1988-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0282125U true JPH0282125U (en) | 1990-06-25 |
Family
ID=31444351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16142688U Pending JPH0282125U (en) | 1988-12-13 | 1988-12-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0282125U (en) |
-
1988
- 1988-12-13 JP JP16142688U patent/JPH0282125U/ja active Pending