JPH01146684U - - Google Patents

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Publication number
JPH01146684U
JPH01146684U JP1988041724U JP4172488U JPH01146684U JP H01146684 U JPH01146684 U JP H01146684U JP 1988041724 U JP1988041724 U JP 1988041724U JP 4172488 U JP4172488 U JP 4172488U JP H01146684 U JPH01146684 U JP H01146684U
Authority
JP
Japan
Prior art keywords
power
switching regulator
preamplifier
voltage winding
transformer
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.)
Granted
Application number
JP1988041724U
Other languages
English (en)
Other versions
JPH0619261Y2 (ja
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 JP1988041724U priority Critical patent/JPH0619261Y2/ja
Publication of JPH01146684U publication Critical patent/JPH01146684U/ja
Application granted granted Critical
Publication of JPH0619261Y2 publication Critical patent/JPH0619261Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【図面の簡単な説明】
第1図は、本考案の具体的な一実施例に係る前
置増幅器を示した回路図。第2図は他の変形例に
係る前置増幅器を示した回路図。第3図は従来の
前置増幅器の構成を示した回路図である。 1,20…前置増幅器、2,6,21…トラン
ス、3,7…高圧巻線、4,8…低圧巻線、27
…入力端子、28…出力端子、25,26…電力
分離フイルタ。

Claims (1)

  1. 【実用新案登録請求の範囲】 CATVシステムにおける受信アンテナと幹線
    間に挿入される前置増幅器において、 交流電力を直流電力に変換するスイツチングレ
    ギユレータと、このスイツチングレギユレータの
    入力部に接続されたトランスとを有し、 前記トランスの高圧巻線側をスイツチングレギ
    ユレータに接続すると共に商用交流電源に接続し
    、 前記トランスの低圧巻線側を高周波信号の入力
    端子及び出力端子に電力分離フイルタを介して接
    続したことを特徴とするCATVの前置増幅器。
JP1988041724U 1988-03-29 1988-03-29 Catvの前置増幅器 Expired - Lifetime JPH0619261Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988041724U JPH0619261Y2 (ja) 1988-03-29 1988-03-29 Catvの前置増幅器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988041724U JPH0619261Y2 (ja) 1988-03-29 1988-03-29 Catvの前置増幅器

Publications (2)

Publication Number Publication Date
JPH01146684U true JPH01146684U (ja) 1989-10-09
JPH0619261Y2 JPH0619261Y2 (ja) 1994-05-18

Family

ID=31268156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988041724U Expired - Lifetime JPH0619261Y2 (ja) 1988-03-29 1988-03-29 Catvの前置増幅器

Country Status (1)

Country Link
JP (1) JPH0619261Y2 (ja)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61104676U (ja) * 1984-12-15 1986-07-03
JPS61207168A (ja) * 1985-03-07 1986-09-13 Seiko Epson Corp 電源装置
JPS62169584U (ja) * 1986-04-17 1987-10-27

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61104676U (ja) * 1984-12-15 1986-07-03
JPS61207168A (ja) * 1985-03-07 1986-09-13 Seiko Epson Corp 電源装置
JPS62169584U (ja) * 1986-04-17 1987-10-27

Also Published As

Publication number Publication date
JPH0619261Y2 (ja) 1994-05-18

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