JPS5894018U - Overcurrent detection circuit - Google Patents

Overcurrent detection circuit

Info

Publication number
JPS5894018U
JPS5894018U JP18703981U JP18703981U JPS5894018U JP S5894018 U JPS5894018 U JP S5894018U JP 18703981 U JP18703981 U JP 18703981U JP 18703981 U JP18703981 U JP 18703981U JP S5894018 U JPS5894018 U JP S5894018U
Authority
JP
Japan
Prior art keywords
overcurrent detection
detection circuit
emitting diode
light emitting
circuit
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
JP18703981U
Other languages
Japanese (ja)
Inventor
千明 金井
宏明 高橋
Original Assignee
ソニー株式会社
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 by ソニー株式会社 filed Critical ソニー株式会社
Priority to JP18703981U priority Critical patent/JPS5894018U/en
Publication of JPS5894018U publication Critical patent/JPS5894018U/en
Pending legal-status Critical Current

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  • Power Sources (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の過電流検出回路を示す回路図、第２図、
第３図及び第４図は本考案の各実施例を示す回路図であ
る。 ４は電流検出用抵抗器、６は発光ダイオード、７はオフ
セット電圧源、８は光電変換素子としてのフォトトラン
ジスタ、９はフォトカプラである。Figure 1 is a circuit diagram showing a conventional overcurrent detection circuit; Figure 2 is a circuit diagram showing a conventional overcurrent detection circuit;
3 and 4 are circuit diagrams showing each embodiment of the present invention. 4 is a current detection resistor, 6 is a light emitting diode, 7 is an offset voltage source, 8 is a phototransistor as a photoelectric conversion element, and 9 is a photocoupler.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電流検出用抵抗器の両端に発光ダイオード及びオフセッ
ト電圧源の直列回路を接続すると共に、上記発光ダイオ
ードよりの発光光を受光して過電流検出出力を得る充電
変換素子を設けて成る過電流検出回路。An overcurrent detection circuit comprising a series circuit of a light emitting diode and an offset voltage source connected to both ends of a current detection resistor, and a charging conversion element for receiving light emitted from the light emitting diode and obtaining an overcurrent detection output. .
JP18703981U 1981-12-15 1981-12-15 Overcurrent detection circuit Pending JPS5894018U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18703981U JPS5894018U (en) 1981-12-15 1981-12-15 Overcurrent detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18703981U JPS5894018U (en) 1981-12-15 1981-12-15 Overcurrent detection circuit

Publications (1)

Publication Number Publication Date
JPS5894018U true JPS5894018U (en) 1983-06-25

Family

ID=30102713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18703981U Pending JPS5894018U (en) 1981-12-15 1981-12-15 Overcurrent detection circuit

Country Status (1)

Country Link
JP (1) JPS5894018U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438176A (en) * 1990-05-31 1992-02-07 Toshiba Corp Excessive current detecting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438176A (en) * 1990-05-31 1992-02-07 Toshiba Corp Excessive current detecting device

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