JPH03111143U - - Google Patents

Info

Publication number
JPH03111143U
JPH03111143U JP1758390U JP1758390U JPH03111143U JP H03111143 U JPH03111143 U JP H03111143U JP 1758390 U JP1758390 U JP 1758390U JP 1758390 U JP1758390 U JP 1758390U JP H03111143 U JPH03111143 U JP H03111143U
Authority
JP
Japan
Prior art keywords
smoothing capacitor
circuit unit
rectifier circuit
relay
converter
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
JP1758390U
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 JP1758390U priority Critical patent/JPH03111143U/ja
Publication of JPH03111143U publication Critical patent/JPH03111143U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は本考案を実施した突入電流防止回路を
示す図、第2図は従来の電源回路を示す図である
。 3……整流回路部、4……平滑コンデンサ、5
……突入電流制限抵抗、6……DC/DCコンバ
ータ、10……リレー、15……制御回路。

Claims (1)

  1. 【実用新案登録請求の範囲】 商用交流電圧を整流する整流回路部と、この整
    流回路部の出力を平滑する平滑コンデンサと、前
    記整流回路部と前記平滑コンデンサの間に接続さ
    れた突入電流制限抵抗と、前記平滑コンデンサの
    出力が供給されるDC/DCコンバータとを備え
    る電源回路において、 前記抵抗の両端を短絡するスイツチを有するリ
    レーと、 前記DC/DCコンバータの2次側出力電圧を
    検出し、この2次側出力電圧が所定値に達したと
    き前記リレーを駆動せしめて前記抵抗の両端を短
    絡する制御回路を設けた突入電流防止回路。
JP1758390U 1990-02-23 1990-02-23 Pending JPH03111143U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1758390U JPH03111143U (ja) 1990-02-23 1990-02-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1758390U JPH03111143U (ja) 1990-02-23 1990-02-23

Publications (1)

Publication Number Publication Date
JPH03111143U true JPH03111143U (ja) 1991-11-14

Family

ID=31520774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1758390U Pending JPH03111143U (ja) 1990-02-23 1990-02-23

Country Status (1)

Country Link
JP (1) JPH03111143U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002142031A (ja) * 2000-10-31 2002-05-17 Aiphone Co Ltd インターホン装置
JP2003032880A (ja) * 2001-07-17 2003-01-31 Nec Corp 多出力電源回路

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945618B2 (ja) * 1976-04-20 1984-11-07 株式会社日立製作所 被覆用ガラス組成物およびその使用方法
JPH0241622A (ja) * 1988-07-27 1990-02-09 Mitsubishi Electric Corp 電源回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945618B2 (ja) * 1976-04-20 1984-11-07 株式会社日立製作所 被覆用ガラス組成物およびその使用方法
JPH0241622A (ja) * 1988-07-27 1990-02-09 Mitsubishi Electric Corp 電源回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002142031A (ja) * 2000-10-31 2002-05-17 Aiphone Co Ltd インターホン装置
JP2003032880A (ja) * 2001-07-17 2003-01-31 Nec Corp 多出力電源回路

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