CN102097261A - Fuse detection circuit - Google Patents
Fuse detection circuit Download PDFInfo
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- CN102097261A CN102097261A CN2010106153888A CN201010615388A CN102097261A CN 102097261 A CN102097261 A CN 102097261A CN 2010106153888 A CN2010106153888 A CN 2010106153888A CN 201010615388 A CN201010615388 A CN 201010615388A CN 102097261 A CN102097261 A CN 102097261A
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- fuse
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- photoelectrical coupler
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Abstract
The invention relates to the technical field of power supply circuits, in particular to a fuse detection circuit. The fuse detection circuit comprises a fuse F, a photoelectric coupler U, a fault positioning circuit and a fault alarm circuit; the 1st pin of a light emitting diode (LED) of the photoelectric coupler U is connected with one end of the fuse F; the 2nd pin of the LED of the photoelectric coupler U is connected with the other end of the fuse F; the 3rd pin of the photoelectric coupler U is connected with a direct current; and the 4th pin of the photoelectric coupler U is connected with the input end of the fault positioning circuit and a fault signal output end. When the fuse F is open-circuited, two ends of the fuse F form voltage difference to drive the photoelectric coupler U, the photoelectric coupler U outputs isolation signals to a fault signal alarm system and the fault positioning circuit, and the LED in the fault positioning circuit is lightened to quickly position the position of the fault fuse F; and by using the simple circuit, fault alarm, protection and positioning are realized, and the cost is low.
Description
Technical field
The present invention relates to the power circuit technical field, relate in particular to a kind of fuse circuit for detecting.
Background technology
Fuse is located requisite electronic devices and components as circuit protection and fault, is widely used in the electronic circuit every field.
Chinese invention patent (application number: 200880113468.4) disclose a kind of fuse state indicator that is used in the disconnecting apparatus of fuse.This fuse state indicator include circuit housing, be used for the off-state of testing circuit checkout gear, be configured to be electrically connected on disconnecting apparatus and finish checkout gear is connected in conductor and the sender unit that the circuit of the fuse of disconnecting apparatus connects.The checkout gear structure transmits to sender unit, is used for determining the operating state of fuse.And sender unit is to construct to transmit this fuse state indicator complex structure, cost height to the remote-control device of fuse state.
Summary of the invention
The objective of the invention is to provides a kind of simple in structure at the deficiencies in the prior art, and cost is low, the fuse circuit for detecting of the quick fault location of energy.
Purpose of the present invention realizes by following technical measures: a kind of fuse circuit for detecting, comprise fuse F, and also comprise photoelectrical coupler U, fault location circuit, failure alarm circuit;
1 pin of photoelectrical coupler U is connected with the end of fuse F;
2 pin of photoelectrical coupler U are connected with the other end of fuse F;
3 pin of photoelectrical coupler U are connected with direct current;
4 pin of photoelectrical coupler U are connected with the input of fault location circuit, fault-signal output.
Wherein, the fault location circuit comprises: light-emitting diode D3, resistance R 3, R4, and the end of R3, the end of R4 are the input of fault location circuit, the other end of R4 is connected with the positive pole of D3, the other end of R3 and the minus earth of D3.
Wherein, also comprise diode D1, the negative pole of D1 is connected with 1 pin of photoelectrical coupler U;
The positive pole of D1 is connected with 2 pin of photoelectrical coupler U.
Wherein, also be provided with resistance R 1 between the end of 1 pin of photoelectrical coupler U and fuse F;
The end of R1 is connected with the end of fuse F;
The other end of R1 is connected with 1 pin of photoelectrical coupler U;
Also be provided with R2 between 2 pin of photoelectrical coupler U and the other end of fuse F;
The end of R2 is connected with the other end of fuse F;
The other end of R2 is connected with 2 pin of photoelectrical coupler U.
Wherein, also be provided with D2 between 4 pin of photoelectrical coupler U and the fault-signal output, the positive pole of D2 is connected with 4 pin of photoelectrical coupler U, and the negative pole of D2 is connected with the fault-signal output.
Beneficial effect of the present invention is: a kind of fuse circuit for detecting, comprise fuse F, and also comprise photoelectrical coupler U, fault location circuit, failure alarm circuit; 1 pin of photoelectrical coupler U is connected with the end of fuse F; 2 pin of photoelectrical coupler U are connected with the other end of fuse F; 3 pin of photoelectrical coupler U are connected with direct current; 4 pin of photoelectrical coupler U are connected with the input of fault location circuit, fault-signal output.Fuse F two ends formed pressure reduction when the present invention utilized fuse F open circuit; drive photoelectrical coupler U; photoelectrical coupler U output isolation signals is transferred to fault-signal warning system and fault location circuit; utilize the position of lighting quick fault location fuse F of light-emitting diode in the fault location circuit; the present invention utilizes simple circuit; realize fault alarm, protection and location, cost is low.
Description of drawings
Fig. 1 is a circuit diagram of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing, as shown in Figure 1.
Embodiment 1
Present embodiment provides a kind of fuse circuit for detecting, comprises fuse F, also comprises photoelectrical coupler U, fault location circuit, failure alarm circuit;
1 pin of photoelectrical coupler U is connected with the end of fuse F;
2 pin of photoelectrical coupler U are connected with the other end of fuse F;
3 pin of photoelectrical coupler U are connected with direct current;
4 pin of photoelectrical coupler U are connected with the input of fault location circuit, fault-signal output; Fuse F two ends formed pressure reduction when present embodiment utilized fuse F open circuit; drive photoelectrical coupler U; photoelectrical coupler U output isolation signals is transferred to fault-signal warning system and fault location circuit; utilize the position of lighting quick fault location fuse F of light-emitting diode in the fault location circuit; the present invention utilizes simple circuit; realize fault alarm, protection and location, cost is low.
Present embodiment light-emitting diode D3, resistance R 3, R4, the end of R3, the end of R4 are the input of fault location circuit, the other end of R4 is connected with the positive pole of D3, the other end of R3 and the minus earth of D3.
Also be provided with resistance R 1 between 1 pin of the photoelectrical coupler U of present embodiment and the end of fuse F;
The end of R1 is connected with the end of fuse F;
The other end of R1 is connected with 1 pin of photoelectrical coupler U;
Also be provided with R2 between 2 pin of photoelectrical coupler U and the other end of fuse F;
The end of R2 is connected with the other end of fuse F;
The other end of R2 is connected with 2 pin of photoelectrical coupler U.
Present embodiment can realize being applied in the fuse detecting of different electric pressure circuit by changing the value of R1 and R2.
Also be provided with D2 between 4 pin of the photoelectrical coupler U of present embodiment and the fault-signal output, the positive pole of D2 is connected with 4 pin of photoelectrical coupler U, and the negative pole of D2 is connected with the output of fault-signal.
Embodiment 2
Present embodiment also comprises diode D1 on the basis of embodiment 1, the negative pole of D1 is connected with 1 pin of photoelectrical coupler U;
The positive pole of D1 is connected with 2 pin of photoelectrical coupler U.
It is in order to protect photoelectrical coupler that present embodiment increases D1, prevents that photoelectrical coupler U from bearing too high back-pressure and damage.
A kind of fuse circuit for detecting of the present invention, can be a plurality of connections use, the fault-signal output of a plurality of a kind of fuse circuit for detecting is connected with failure detector circuit, realizes the purpose that the fault of a plurality of fuses detects simultaneously.
Should be noted that at last; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the essence and the scope of technical solution of the present invention.
Claims (5)
1. a fuse circuit for detecting comprises fuse F, it is characterized in that: also comprise photoelectrical coupler U, the fault location circuit;
1 pin of photoelectrical coupler U is connected with the end of fuse F;
2 pin of photoelectrical coupler U are connected with the other end of fuse F;
3 pin of photoelectrical coupler U are connected with direct current;
4 pin of photoelectrical coupler U are connected with the input of fault location circuit, fault-signal output.
2. a kind of fuse circuit for detecting according to claim 1, it is characterized in that: the fault location circuit comprises: light-emitting diode D3, resistance R 3, R4, the end of R3, the end of R4 are the input of fault location circuit, the other end of R4 is connected with the positive pole of D3, the other end of R3 and the minus earth of D3.
3. a kind of fuse circuit for detecting according to claim 2 is characterized in that: also comprise diode D1, the negative pole of D1 is connected with 1 pin of photoelectrical coupler U;
The positive pole of D1 is connected with 2 pin of photoelectrical coupler U.
4. a kind of fuse circuit for detecting according to claim 3 is characterized in that: also be provided with resistance R 1 between 1 pin of photoelectrical coupler U and the end of fuse F;
The end of R1 is connected with the end of fuse F;
The other end of R1 is connected with 1 pin of photoelectrical coupler U;
Also be provided with R2 between 2 pin of photoelectrical coupler U and the other end of fuse F;
The end of R2 is connected with the other end of fuse F;
The other end of R2 is connected with 2 pin of photoelectrical coupler U.
5. according to any described a kind of fuse circuit for detecting of claim 1-4, it is characterized in that: also be provided with D2 between 4 pin of photoelectrical coupler U and the fault-signal output, the positive pole of D2 is connected with 4 pin of photoelectrical coupler U, and the negative pole of D2 is connected with the fault-signal output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106153888A CN102097261A (en) | 2010-12-30 | 2010-12-30 | Fuse detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106153888A CN102097261A (en) | 2010-12-30 | 2010-12-30 | Fuse detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102097261A true CN102097261A (en) | 2011-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106153888A Pending CN102097261A (en) | 2010-12-30 | 2010-12-30 | Fuse detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102097261A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063969A (en) * | 2011-07-23 | 2013-04-24 | 江苏荣联科技发展股份有限公司 | Alternating current power supply distribution unit alarm device used for communication |
| CN103163411A (en) * | 2013-01-15 | 2013-06-19 | 浙江中碳科技有限公司 | Detection method and detection circuit for on-off of direct current power distribution system |
| WO2014134879A1 (en) * | 2013-03-06 | 2014-09-12 | 深圳市安能能源技术有限公司 | Load fuse detection device and power source system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2284449Y (en) * | 1996-07-30 | 1998-06-17 | 宁波开关厂 | Fusing protector |
| CN2337673Y (en) * | 1998-04-03 | 1999-09-08 | 锦州铁路分局锦州电务段 | Double-set fuse tongs |
| CN1331804A (en) * | 1998-12-24 | 2002-01-16 | 株式会社有一技术产业 | Appts. for diagnosing and indicating operational failure in automobiles |
| CN201918343U (en) * | 2010-12-30 | 2011-08-03 | 易事特电力系统技术有限公司 | Fuse detection circuit |
-
2010
- 2010-12-30 CN CN2010106153888A patent/CN102097261A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2284449Y (en) * | 1996-07-30 | 1998-06-17 | 宁波开关厂 | Fusing protector |
| CN2337673Y (en) * | 1998-04-03 | 1999-09-08 | 锦州铁路分局锦州电务段 | Double-set fuse tongs |
| CN1331804A (en) * | 1998-12-24 | 2002-01-16 | 株式会社有一技术产业 | Appts. for diagnosing and indicating operational failure in automobiles |
| CN201918343U (en) * | 2010-12-30 | 2011-08-03 | 易事特电力系统技术有限公司 | Fuse detection circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063969A (en) * | 2011-07-23 | 2013-04-24 | 江苏荣联科技发展股份有限公司 | Alternating current power supply distribution unit alarm device used for communication |
| CN103163411A (en) * | 2013-01-15 | 2013-06-19 | 浙江中碳科技有限公司 | Detection method and detection circuit for on-off of direct current power distribution system |
| CN103163411B (en) * | 2013-01-15 | 2015-12-16 | 浙江中碳科技有限公司 | A kind of break-make detection method of direct-flow distribution system and testing circuit |
| WO2014134879A1 (en) * | 2013-03-06 | 2014-09-12 | 深圳市安能能源技术有限公司 | Load fuse detection device and power source system |
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Application publication date: 20110615 |