JPH0348773U - - Google Patents

Info

Publication number
JPH0348773U
JPH0348773U JP10947589U JP10947589U JPH0348773U JP H0348773 U JPH0348773 U JP H0348773U JP 10947589 U JP10947589 U JP 10947589U JP 10947589 U JP10947589 U JP 10947589U JP H0348773 U JPH0348773 U JP H0348773U
Authority
JP
Japan
Prior art keywords
power supply
photocoupler
light emitting
phototransistor
emitting diode
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
JP10947589U
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 JP10947589U priority Critical patent/JPH0348773U/ja
Publication of JPH0348773U publication Critical patent/JPH0348773U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例の回路図、第2図及
び第3図は本考案の他の実施例の回路図、第4図
は第1図、第2図、第3図の回路の組合わせによ
る電源監視回路の監視特性例図、第5図乃至第7
図は従来の回路図、第8図は第7図の電源監視回
路の監視特性例図である。 20……フオトカプラー、21……発光ダイオ
ード、22……フオトトランジスタ、23,24
,26,27……抵抗、25……ツエナーダイオ
ード。

Claims (1)

  1. 【実用新案登録請求の範囲】 発光ダイオードとフオトトランジスタよりなる
    フオトカプラーと、 該フオトカプラーの発光ダイオードに直列接続
    された被監視電源及びツエナーダイオードと、 前記フオトカプラーのフオトトランジスタを駆
    動する単電源、 とで構成されたことを特徴とする電源監視回路。
JP10947589U 1989-09-19 1989-09-19 Pending JPH0348773U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10947589U JPH0348773U (ja) 1989-09-19 1989-09-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10947589U JPH0348773U (ja) 1989-09-19 1989-09-19

Publications (1)

Publication Number Publication Date
JPH0348773U true JPH0348773U (ja) 1991-05-10

Family

ID=31658071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10947589U Pending JPH0348773U (ja) 1989-09-19 1989-09-19

Country Status (1)

Country Link
JP (1) JPH0348773U (ja)

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