JPS606329U - Power amplifier protection circuit - Google Patents

Power amplifier protection circuit

Info

Publication number
JPS606329U
JPS606329U JP9910083U JP9910083U JPS606329U JP S606329 U JPS606329 U JP S606329U JP 9910083 U JP9910083 U JP 9910083U JP 9910083 U JP9910083 U JP 9910083U JP S606329 U JPS606329 U JP S606329U
Authority
JP
Japan
Prior art keywords
power amplifier
protection circuit
bridge
amplifier protection
output
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
Application number
JP9910083U
Other languages
Japanese (ja)
Inventor
小林　秀洋
Original Assignee
フオスタ−電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by フオスタ−電機株式会社 filed Critical フオスタ−電機株式会社
Priority to JP9910083U priority Critical patent/JPS606329U/en
Publication of JPS606329U publication Critical patent/JPS606329U/en
Pending legal-status Critical Current

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  • 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

【図面の簡単な説明】[Brief explanation of the drawing]

第１゛図は従来の回路例を示す回路図、第２図は本考案
の一実施例を示す回路図、第３図はトランジスタの負荷
線と安全動作領域の関係を示す特性側図、第４図及び第
５図はそれぞれ本考案の他の実施例を示す回路図である
。Fig. 1 is a circuit diagram showing an example of a conventional circuit, Fig. 2 is a circuit diagram showing an embodiment of the present invention, Fig. 3 is a characteristic side diagram showing the relationship between the load line and safe operating area of the transistor, and Fig. 3 is a circuit diagram showing an example of a conventional circuit. 4 and 5 are circuit diagrams showing other embodiments of the present invention, respectively.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）電力増幅器の出力部に負荷を一辺とするブリッジ
を設けると共に該ブリッジの出力に応じて電力増幅器の
出力を遮断するスイッチ手段を設けた電力増幅器の保護
回路において、前記ブリッジに少なくとも１個の定数切
り換え手段を設け、負荷インピーダンスに応じて前記ブ
リッジの定数を切り換えるようにしたことを特徴とする
電力増幅器の保護回路。(1) In a protection circuit for a power amplifier, which is provided with a bridge having the load on one side at the output section of the power amplifier, and is provided with a switch means for cutting off the output of the power amplifier according to the output of the bridge, at least one switch means is provided in the bridge. 1. A protection circuit for a power amplifier, characterized in that a constant switching means is provided to switch the constant of the bridge according to load impedance. （２）前記定数切換手段として電源電圧の切り換えに連
動するものを用いることを特徴とする実用新案登録請求
の範囲第１項記載の電力増幅器の保護回路。(2) The protection circuit for a power amplifier according to claim 1, wherein the constant switching means is one that is linked to switching of the power supply voltage.
JP9910083U 1983-06-27 1983-06-27 Power amplifier protection circuit Pending JPS606329U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9910083U JPS606329U (en) 1983-06-27 1983-06-27 Power amplifier protection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9910083U JPS606329U (en) 1983-06-27 1983-06-27 Power amplifier protection circuit

Publications (1)

Publication Number Publication Date
JPS606329U true JPS606329U (en) 1985-01-17

Family

ID=30234998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9910083U Pending JPS606329U (en) 1983-06-27 1983-06-27 Power amplifier protection circuit

Country Status (1)

Country Link
JP (1) JPS606329U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016046768A (en) * 2014-08-26 2016-04-04 オンキヨー株式会社 Protection circuit
JP2016122936A (en) * 2014-12-25 2016-07-07 オンキヨー＆パイオニアテクノロジー株式会社 Protective device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016046768A (en) * 2014-08-26 2016-04-04 オンキヨー株式会社 Protection circuit
JP2016122936A (en) * 2014-12-25 2016-07-07 オンキヨー＆パイオニアテクノロジー株式会社 Protective device

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