JPH02101618U - - Google Patents
Info
- Publication number
- JPH02101618U JPH02101618U JP955789U JP955789U JPH02101618U JP H02101618 U JPH02101618 U JP H02101618U JP 955789 U JP955789 U JP 955789U JP 955789 U JP955789 U JP 955789U JP H02101618 U JPH02101618 U JP H02101618U
- Authority
- JP
- Japan
- Prior art keywords
- input signal
- envelope level
- level
- output signal
- attenuator
- 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
- 238000010586 diagram Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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
本考案の一実施例の動作を説明するための波形図
、第３図は従来の一例の回路図、第４図は従来の
一例の出力波形図である。
１……レベル検出回路、２……アツテネータ、
３……増幅回路、５……２．７Ｖ定電圧源、８…
…コンパレータ。
Fig. 1 is a circuit diagram of an embodiment of the present invention, Fig. 2 is a waveform diagram for explaining the operation of an embodiment of the present invention, Fig. 3 is a circuit diagram of a conventional example, and Fig. 4 is a conventional circuit diagram. It is an output waveform diagram of an example. 1...Level detection circuit, 2...Attenuator,
3...Amplification circuit, 5...2.7V constant voltage source, 8...
…comparator.
Claims (1)
幅回路の出力信号の包路線レベルと基準レベルと
を比較し、その比較結果に応じて、前記アツテネ
ータの減衰量を変化させ、前記入力信号の振幅を
制御することにより該出力信号の振幅を制御して
なり、該入力信号投入時には該増幅回路のオフセ
ツトにより該出力信号の一方の包路線レベルが定
常時の包路線レベルを越える自動利得制御回路に
おいて、 前記入力信号投入時に前記出力信号が定常時の
包路線レベルを越えない他方の包路線レベル側に
前記基準レベルを設定してなる自動利得制御回路
。[Claims for Utility Model Registration] The envelope level of the output signal of an amplifier circuit to which an input signal is supplied via an attenuator is compared with a reference level, and the amount of attenuation of the attenuator is changed according to the comparison result. , the amplitude of the output signal is controlled by controlling the amplitude of the input signal, and when the input signal is applied, the envelope level of one of the output signals is equal to the envelope level at steady state due to the offset of the amplifier circuit. the reference level is set to the other envelope level side at which the output signal does not exceed the steady state envelope level when the input signal is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP955789U JPH02101618U (en) | 1989-01-30 | 1989-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP955789U JPH02101618U (en) | 1989-01-30 | 1989-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02101618U true JPH02101618U (en) | 1990-08-13 |
Family
ID=31216402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP955789U Pending JPH02101618U (en) | 1989-01-30 | 1989-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02101618U (en) |
-
1989
- 1989-01-30 JP JP955789U patent/JPH02101618U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02101618U (en) | ||
| JPS593611U (en) | Pulse width modulation amplifier circuit | |
| JPH01115378U (en) | ||
| JPS58104013U (en) | AGC device | |
| JPS60184316U (en) | automatic attenuator control circuit | |
| JPS6195112U (en) | ||
| JPH0255176U (en) | ||
| JPS6190311U (en) | ||
| JPS62196415U (en) | ||
| JPS62155580U (en) | ||
| JPH0224621U (en) | ||
| JPH0262844U (en) | ||
| JPH02118321U (en) | ||
| JPH0246421U (en) | ||
| JPH0262822U (en) | ||
| JPS62121884U (en) | ||
| JPH01126621U (en) | ||
| JPH0172720U (en) | ||
| JPH0394666U (en) | ||
| JPH02817U (en) | ||
| JPH0298511U (en) | ||
| JPS6335311U (en) | ||
| JPH02138918U (en) | ||
| JPS61195113U (en) | ||
| JPS62124658U (en) |