JPS6047311U - power protector circuit - Google Patents
power protector circuitInfo
- Publication number
- JPS6047311U JPS6047311U JP13835883U JP13835883U JPS6047311U JP S6047311 U JPS6047311 U JP S6047311U JP 13835883 U JP13835883 U JP 13835883U JP 13835883 U JP13835883 U JP 13835883U JP S6047311 U JPS6047311 U JP S6047311U
- Authority
- JP
- Japan
- Prior art keywords
- voltage source
- power
- power supply
- output stage
- bias
- 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
- 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図は従来の高効率増幅器の一例を示すブロック図、
第２図は本考案によるパワープロテクタ回路の一実施例
を示す回路図である。 。
１・・・バッファアンプ、２・・・コンパレータ、３・
・・モノステーブルマルチ、４・・・ボルテージスイッ
チ、５・・・電力増幅器、６・・・電源回路、７・・・
入力端子、８・・・出力端子、１０・・・パワープロテ
クタ回路、１１・・・放熱板、ＴＲＩ・・・スイッチン
グトランジスタ、ＴＲ２・・・パワートランジスタ、Ｔ
Ｈ・・・サーミスタ、Ｒ１・・・バイアス抵抗、Ｒ２・
・・負荷抵抗。FIG. 1 is a block diagram showing an example of a conventional high efficiency amplifier.
FIG. 2 is a circuit diagram showing an embodiment of the power protector circuit according to the present invention. . 1...Buffer amplifier, 2...Comparator, 3.
... Monostable multi, 4... Voltage switch, 5... Power amplifier, 6... Power supply circuit, 7...
Input terminal, 8... Output terminal, 10... Power protector circuit, 11... Heat sink, TRI... Switching transistor, TR2... Power transistor, T
H...Thermistor, R1... Bias resistance, R2...
··Load resistance.
Claims (1)
号レベルに応じて切換えるように構成された増幅器にお
いて、 エミッタ接地のスイッチングトランジスタのペースに、
一端がバイアス電源に接続されたバイアス抵抗と上記出
力段増幅素子の放熱板または電源回路の電源トランスに
熱結合された一端が接地さ−れた温度検出素子との直列
接続φ点を、コレクタに一端が上記バイアス電源に接続
された負荷抵抗を夫々接続せしめ１、 上記出力段増幅素子の放熱板または電源トランスの熱が
上記温度検出素子にて所定温度以上に検出された場合、
上記スイッチングトランジスタのコレクタよりＯＮ信号
を出力せしめ、上記電力増幅器の出力段増幅素子に供給
する電圧源を高電圧源より低電圧源に切換えるようにし
たことを特徴とす゛るパワープロテクタ回路。[Claim for Utility Model Registration] In an amplifier configured to switch the voltage source supplied to the output stage amplification element of the power amplifier according to the input signal level,
A series connection point φ between a bias resistor whose one end is connected to the bias power supply and a temperature detection element whose one end is grounded and which is thermally coupled to the heat sink of the output stage amplification element or the power transformer of the power supply circuit is connected to the collector. Load resistors each having one end connected to the bias power supply are connected;
A power protector circuit characterized in that an ON signal is output from the collector of the switching transistor to switch the voltage source supplied to the output stage amplifying element of the power amplifier from a high voltage source to a low voltage source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13835883U JPS6047311U (en) | 1983-09-08 | 1983-09-08 | power protector circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13835883U JPS6047311U (en) | 1983-09-08 | 1983-09-08 | power protector circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6047311U true JPS6047311U (en) | 1985-04-03 |
Family
ID=30310468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13835883U Pending JPS6047311U (en) | 1983-09-08 | 1983-09-08 | power protector circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047311U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5544646B2 (en) * | 1975-06-25 | 1980-11-13 |
-
1983
- 1983-09-08 JP JP13835883U patent/JPS6047311U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5544646B2 (en) * | 1975-06-25 | 1980-11-13 |
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