JPS63114589U - - Google Patents

Info

Publication number
JPS63114589U
JPS63114589U JP16718586U JP16718586U JPS63114589U JP S63114589 U JPS63114589 U JP S63114589U JP 16718586 U JP16718586 U JP 16718586U JP 16718586 U JP16718586 U JP 16718586U JP S63114589 U JPS63114589 U JP S63114589U
Authority
JP
Japan
Prior art keywords
circuit
power amplifier
relay
abnormality detection
negative feedback
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
JP16718586U
Other languages
English (en)
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 filed Critical
Priority to JP16718586U priority Critical patent/JPS63114589U/ja
Publication of JPS63114589U publication Critical patent/JPS63114589U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Amplifiers (AREA)

Description

【図面の簡単な説明】
第1図は本考案実施例のスピーカ保護回路を示
すブロツク図、第2図は従来例を示すブロツク図
である。 11……パワーアンプ、12……異常検出回路
、13……リレー、14……リレー駆動回路、1
5……スピーカ、16……負帰還増幅回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. パワーアンプとスピーカとの間にリレー及び異
    常検出回路を接続し、パワーアンプ出力の異常時
    異常検出回路によつてリレーをオフさせるように
    したスピーカ保護回路において、パワーアンプに
    負帰還増幅回路を接続し、パワーアンプ出力の異
    常時異常検出回路によつて上記負帰還増幅回路の
    負帰還量を増加させてパワーアンプ出力を低下さ
    せ、この後リレーをオフさせるようにしたことを
    特徴とするスピーカ保護回路。
JP16718586U 1986-10-30 1986-10-30 Pending JPS63114589U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16718586U JPS63114589U (ja) 1986-10-30 1986-10-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16718586U JPS63114589U (ja) 1986-10-30 1986-10-30

Publications (1)

Publication Number Publication Date
JPS63114589U true JPS63114589U (ja) 1988-07-23

Family

ID=31098880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16718586U Pending JPS63114589U (ja) 1986-10-30 1986-10-30

Country Status (1)

Country Link
JP (1) JPS63114589U (ja)

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