JPH0177250U - - Google Patents

Info

Publication number
JPH0177250U
JPH0177250U JP1987173125U JP17312587U JPH0177250U JP H0177250 U JPH0177250 U JP H0177250U JP 1987173125 U JP1987173125 U JP 1987173125U JP 17312587 U JP17312587 U JP 17312587U JP H0177250 U JPH0177250 U JP H0177250U
Authority
JP
Japan
Prior art keywords
excitation coil
circuit
electromagnetic
focusing
resistor
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
JP1987173125U
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 JP1987173125U priority Critical patent/JPH0177250U/ja
Publication of JPH0177250U publication Critical patent/JPH0177250U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Transforming Electric Information Into Light Information (AREA)
  • Details Of Television Scanning (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例における電磁フオー
カス回路の回路図、第2図は従来の電磁フオーカ
ス回路の回路図である。 1……ブラウン管、2,6……オペアンプ、3
……励磁コイル、4……ビデオ出力回路、R
…検出用抵抗、Q……駆動トランジスタ。

Claims (1)

    【実用新案登録請求の範囲】
  1. R,G,B用の各ブラウン管に励磁コイルを設
    け、フオーカスを電磁的に行なう電磁フオーカス
    回路において、ビーム電流を検出する抵抗を設け
    、この検出出力により前記励磁コイルに流れる電
    流を制御してなる電磁フオーカス回路。
JP1987173125U 1987-11-12 1987-11-12 Pending JPH0177250U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987173125U JPH0177250U (ja) 1987-11-12 1987-11-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987173125U JPH0177250U (ja) 1987-11-12 1987-11-12

Publications (1)

Publication Number Publication Date
JPH0177250U true JPH0177250U (ja) 1989-05-24

Family

ID=31465061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987173125U Pending JPH0177250U (ja) 1987-11-12 1987-11-12

Country Status (1)

Country Link
JP (1) JPH0177250U (ja)

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