JPS6413812U - - Google Patents
Info
- Publication number
- JPS6413812U JPS6413812U JP9369387U JP9369387U JPS6413812U JP S6413812 U JPS6413812 U JP S6413812U JP 9369387 U JP9369387 U JP 9369387U JP 9369387 U JP9369387 U JP 9369387U JP S6413812 U JPS6413812 U JP S6413812U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- amplification circuit
- output
- power supply
- supply voltage
- 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 description 3
- 230000003321 amplification Effects 0.000 claims 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims 5
- 230000007423 decrease Effects 0.000 claims 1
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図は増強回路１１の増強動作を説明するための図
、第３図は本考案の他の実施例の電気回路図であ
る。
１……音響信号源、２……可変抵抗器、３……
演算増幅器、４……電力増幅回路、５……スピー
カ、７……電池、８……検出回路、９……ツエナ
ダイオード、１１……増強回路、２３……トラン
ジスタ、Ｚ１〜Ｚ３……インピーダンス変換回路
。
Figure 1 is a block diagram of one embodiment of the present invention;
The figure is a diagram for explaining the reinforcement operation of the reinforcement circuit 11, and FIG. 3 is an electric circuit diagram of another embodiment of the present invention. 1...Acoustic signal source, 2...Variable resistor, 3...
Operational amplifier, 4...Power amplifier circuit, 5...Speaker, 7...Battery, 8...Detection circuit, 9...Zena diode, 11...Boost circuit, 23...Transistor, Z1 to Z3...Impedance conversion circuit.
Claims (1)
増幅回路において、 前記増幅回路の電源電圧を検出する検出回路と
、 前記検出回路の出力に応答し、電源電圧が低下
したときに前記増幅回路の入力または出力の高音
域または低音域のいずれか少なくとも一方を増強
する増強回路とを含むことを特徴とする音響信号
増幅回路。[Claims for Utility Model Registration] An acoustic signal amplification circuit that amplifies an acoustic signal using an amplifier circuit, comprising: a detection circuit that detects a power supply voltage of the amplifier circuit; and a power supply voltage that decreases in response to the output of the detection circuit. 1. An audio signal amplification circuit comprising: an amplification circuit that enhances at least one of a high range or a low range of the input or output of the amplification circuit when the input or output of the amplification circuit is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9369387U JPS6413812U (en) | 1987-06-17 | 1987-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9369387U JPS6413812U (en) | 1987-06-17 | 1987-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6413812U true JPS6413812U (en) | 1989-01-24 |
Family
ID=31318161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9369387U Pending JPS6413812U (en) | 1987-06-17 | 1987-06-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6413812U (en) |
-
1987
- 1987-06-17 JP JP9369387U patent/JPS6413812U/ja active Pending
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