JPS61202189U - - Google Patents

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Publication number
JPS61202189U
JPS61202189U JP8408985U JP8408985U JPS61202189U JP S61202189 U JPS61202189 U JP S61202189U JP 8408985 U JP8408985 U JP 8408985U JP 8408985 U JP8408985 U JP 8408985U JP S61202189 U JPS61202189 U JP S61202189U
Authority
JP
Japan
Prior art keywords
overcurrent detection
light emitting
emitting element
light receiving
detection signal
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
JP8408985U
Other languages
Japanese (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 JP8408985U priority Critical patent/JPS61202189U/ja
Publication of JPS61202189U publication Critical patent/JPS61202189U/ja
Pending legal-status Critical Current

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Description

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

第１図は本案の対象とらるインバータ動作回路
の概要図、第２図は従来例を示す回路図、第３図
は本考案実施例を示す回路図。 １は交流電源、２は直流電源たる整流回路、３
はインバータ回路、７は抵抗、２０は発光素子、
２２は受光素子、２５，２６，２７は比較器。 FIG. 1 is a schematic diagram of an inverter operation circuit to which the present invention is applied, FIG. 2 is a circuit diagram showing a conventional example, and FIG. 3 is a circuit diagram showing an embodiment of the present invention. 1 is an AC power supply, 2 is a rectifier circuit that is a DC power supply, 3
is an inverter circuit, 7 is a resistor, 20 is a light emitting element,
22 is a light receiving element, and 25, 26, and 27 are comparators.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 直流電源とインバータ回路の間に挿入される電
流検出用抵抗と、該抵抗の両端の電圧を電源電圧
として動作する発光素子と、該発光素子と光結合
する受光素子と、該受光素子における出力が所定
レベル以上になると過電流検出信号を出力する比
較器とを備えて成るインバータの過電流検出装置
。 A current detection resistor inserted between a DC power source and an inverter circuit, a light emitting element that operates using the voltage across the resistor as a power supply voltage, a light receiving element optically coupled to the light emitting element, and an output of the light receiving element. An overcurrent detection device for an inverter, comprising a comparator that outputs an overcurrent detection signal when the overcurrent detection signal exceeds a predetermined level.
JP8408985U 1985-06-04 1985-06-04 Pending JPS61202189U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8408985U JPS61202189U (en) 1985-06-04 1985-06-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8408985U JPS61202189U (en) 1985-06-04 1985-06-04

Publications (1)

Publication Number Publication Date
JPS61202189U true JPS61202189U (en) 1986-12-18

Family

ID=30633295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8408985U Pending JPS61202189U (en) 1985-06-04 1985-06-04

Country Status (1)

Country Link
JP (1) JPS61202189U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008017649A (en) * 2006-07-07 2008-01-24 Matsushita Electric Ind Co Ltd Overcurrent detection circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59213280A (en) * 1983-05-17 1984-12-03 Sanyo Electric Co Ltd Protecting device of inverter circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59213280A (en) * 1983-05-17 1984-12-03 Sanyo Electric Co Ltd Protecting device of inverter circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008017649A (en) * 2006-07-07 2008-01-24 Matsushita Electric Ind Co Ltd Overcurrent detection circuit

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