JPS6410538A - Fusing detecting device - Google Patents
Fusing detecting deviceInfo
- 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
Links
Landscapes
- 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.
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)
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 |
-
1987
- 1987-07-02 JP JP16656087A patent/JPS6410538A/en active Pending
Cited By (3)
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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