JPS6410538A - Fusing detecting device - Google Patents

Fusing detecting device

Info

Publication number
JPS6410538A
JPS6410538A JP16656087A JP16656087A JPS6410538A JP S6410538 A JPS6410538 A JP S6410538A JP 16656087 A JP16656087 A JP 16656087A JP 16656087 A JP16656087 A JP 16656087A JP S6410538 A JPS6410538 A JP S6410538A
Authority
JP
Japan
Prior art keywords
fuse
detecting device
current
cycle
fusing
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
JP16656087A
Other languages
Japanese (ja)
Inventor
Hirakazu Tsukamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP16656087A priority Critical patent/JPS6410538A/en
Publication of JPS6410538A publication Critical patent/JPS6410538A/en
Pending legal-status Critical Current

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  • Fuses (AREA)

Abstract

PURPOSE:To make it possible to detect a blowing of fuse in a compact device and in a low cost by turning on a current to a semiconductor switching device from the voltage variation after the fusing, and detecting the fusing thereby. CONSTITUTION:When a fuse F is blown, a load L, a switching device 14, and a voltage detecting device 12 come to be connected in series to an AC power source AC. Even after the fuse F is blown, in AC currents i1 and i2, the current value is limited by a protective resistance R1 of the voltage detecting device 12 in the current flowing condition, and an AC current responding to a series composition impedance of a surge suppressing circuit 16 and the protective resistance R1 flows in a cut-off condition. As a result, the luminous diodes D1 and D2 in the voltage detecting device 12 are flashed alternatively in the cycle of the AC power source AC. Accordingly, a phototransistor 13 is turned on and cut off in a cycle of two times the above cycle, and a detecting signal S is derived synchronously to the frequency between a collector (c) and an earthing line l0.
JP16656087A 1987-07-02 1987-07-02 Fusing detecting device Pending JPS6410538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16656087A JPS6410538A (en) 1987-07-02 1987-07-02 Fusing detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16656087A JPS6410538A (en) 1987-07-02 1987-07-02 Fusing detecting device

Publications (1)

Publication Number Publication Date
JPS6410538A true JPS6410538A (en) 1989-01-13

Family

ID=15833525

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16656087A Pending JPS6410538A (en) 1987-07-02 1987-07-02 Fusing detecting device

Country Status (1)

Country Link
JP (1) JPS6410538A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008259295A (en) * 2007-04-04 2008-10-23 Sharp Corp System-interconnected inverter
EP2380737A1 (en) 2007-10-29 2011-10-26 Fujifilm Corporation Lithographic printing plate precursor
WO2023276634A1 (en) * 2021-06-30 2023-01-05 株式会社オートネットワーク技術研究所 Vehicle-mounted device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008259295A (en) * 2007-04-04 2008-10-23 Sharp Corp System-interconnected inverter
EP2380737A1 (en) 2007-10-29 2011-10-26 Fujifilm Corporation Lithographic printing plate precursor
WO2023276634A1 (en) * 2021-06-30 2023-01-05 株式会社オートネットワーク技術研究所 Vehicle-mounted device

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