JPS5972026U - Limiter circuit for suppressing power supply voltage drop - Google Patents
Limiter circuit for suppressing power supply voltage dropInfo
- Publication number
- JPS5972026U JPS5972026U JP16677282U JP16677282U JPS5972026U JP S5972026 U JPS5972026 U JP S5972026U JP 16677282 U JP16677282 U JP 16677282U JP 16677282 U JP16677282 U JP 16677282U JP S5972026 U JPS5972026 U JP S5972026U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- supply voltage
- voltage
- circuit
- voltage drop
- 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
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Amplifiers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案回路の一実施例を示す回路図、第２図は
本考案回路に供給される信号の一例としてのトーンバー
ス１−信号波形を示す図、第３図はトーンバースト信号
入来時における従来の電源電圧波形の一例を示す図、第
４図はトーンバースト信号入来時における本考案回路の
電源電圧波形の一例を示す図である。
１・・・乾電池からなる電源、２・・・基準電圧部、３
・・・電圧比較回路、４・・・電源電圧検出部、５・・
・入力端子、６・・・電圧増幅器、７・・・振幅制限回
路、８・・・低周波電力増幅器、Ｑ□、 Ｑ２・・・Ｐ
ＮＰトランジスタ、Ｑ３・・・ＮＰＮトランジスタ、Ｒ
・・・乾電池の総合内部抵抗。FIG. 1 is a circuit diagram showing an embodiment of the circuit of the present invention, FIG. 2 is a diagram showing a tone burst 1 signal waveform as an example of a signal supplied to the circuit of the present invention, and FIG. 3 is a diagram showing tone burst signal input. FIG. 4 is a diagram showing an example of a conventional power supply voltage waveform in the future, and FIG. 4 is a diagram showing an example of a power supply voltage waveform of the circuit of the present invention when a tone burst signal is received. 1... Power supply consisting of a dry battery, 2... Reference voltage section, 3
... Voltage comparator circuit, 4... Power supply voltage detection section, 5...
・Input terminal, 6... Voltage amplifier, 7... Amplitude limiting circuit, 8... Low frequency power amplifier, Q□, Q2...P
NP transistor, Q3...NPN transistor, R
...Total internal resistance of a dry battery.
Claims (1)
有する機器において、該乾電池からの電源電圧を検出す
る電源電圧検出部と、該電源電圧よりも小なる基準電圧
を発生する基準電圧部と、上記電力増幅器の入力信号の
振幅を外部制御信号に応じて制限する振幅制限回路と、
該電源電圧検出部の出力電圧と該基準電圧とを夫々比較
し、該電源電圧検出部の出力電圧が該基準電圧よりも低
いときにのみ該振幅制限回路をして振幅制限動作をさせ
る制御信号を出力する電圧比較回路とより構成した電源
電圧低下抑制用リミッタ回路。In a device having a power amplifier to which the voltage of a dry cell battery is supplied as a power supply voltage, a power supply voltage detection unit that detects the power supply voltage from the dry battery, a reference voltage unit that generates a reference voltage smaller than the power supply voltage, an amplitude limiting circuit that limits the amplitude of the input signal of the power amplifier according to an external control signal;
A control signal that compares the output voltage of the power supply voltage detection section with the reference voltage and causes the amplitude limiting circuit to perform an amplitude limiting operation only when the output voltage of the power supply voltage detection section is lower than the reference voltage. A limiter circuit for suppressing power supply voltage drop consisting of a voltage comparator circuit that outputs .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16677282U JPS5972026U (en) | 1982-11-02 | 1982-11-02 | Limiter circuit for suppressing power supply voltage drop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16677282U JPS5972026U (en) | 1982-11-02 | 1982-11-02 | Limiter circuit for suppressing power supply voltage drop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5972026U true JPS5972026U (en) | 1984-05-16 |
Family
ID=30365032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16677282U Pending JPS5972026U (en) | 1982-11-02 | 1982-11-02 | Limiter circuit for suppressing power supply voltage drop |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5972026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS619914U (en) * | 1984-06-21 | 1986-01-21 | 三洋電機株式会社 | power amplifier circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528016U (en) * | 1978-08-09 | 1980-02-23 | ||
| JPS5726415U (en) * | 1980-07-23 | 1982-02-10 |
-
1982
- 1982-11-02 JP JP16677282U patent/JPS5972026U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528016U (en) * | 1978-08-09 | 1980-02-23 | ||
| JPS5726415U (en) * | 1980-07-23 | 1982-02-10 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS619914U (en) * | 1984-06-21 | 1986-01-21 | 三洋電機株式会社 | power amplifier circuit |
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