CN205880034U - Detection circuit - Google Patents
Detection circuit Download PDFInfo
- Publication number
- CN205880034U CN205880034U CN201620348663.7U CN201620348663U CN205880034U CN 205880034 U CN205880034 U CN 205880034U CN 201620348663 U CN201620348663 U CN 201620348663U CN 205880034 U CN205880034 U CN 205880034U
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- China
- Prior art keywords
- resistance
- connects
- circuit
- testing circuit
- audion
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- 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.)
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Abstract
The utility model discloses a detection circuit, the circuit includes normal operating circuit and warning circuit, normal operating circuit includes fuse interface J1, closed switch K1, emitting diode LED2, stabilivolt VD1 and current -limiting resistor R2, warning circuit includes triode VT1, light emitting diode LED1, bee calling organ B1, simplifies fuse break -make detection method, promotes work efficiency, optimize measuring instrument, replace all kinds of fuse part break -makes of professional instrument check such as universal meter, reduce cost, and with the more audio -visual demonstration testing result of form that the reputation combines, the rate of accuracy is higher.
Description
Technical field
This utility model relates to the technical field of circuit safety protection, particularly relates to a kind of testing circuit.
Background technology
The fuse that electric fuse is protected as circuit safety, because it is cheap, use feature simple, applied widely
And be widely adopted.Particularly some is made fastp-acting fuse or the insurance resistance of real core by the material of pottery etc, it is impossible to logical
Cross inspection outward appearance to judge that fuse is the most already off, it is necessary to the special instrument such as circuit tester must be used to measure detection.But general-purpose
Table function is more, structure is complicated, has certain Professional knowledge requirement to user, and misoperation is likely to result in erroneous judgement.
Utility model content
The purpose of this utility model is to propose a kind of testing circuit, it is intended to solve during circuit tester testing circuit relatively costly
And the problem of easily erroneous judgement.
For reaching this purpose, this utility model by the following technical solutions:
A kind of testing circuit, described normal operating circuit when normal work and alarm during for non-normal working
Circuit, described normal operating circuit includes electric fuse interface J1, Guan Bi on and off switch K1, LED 2, stabilivolt VD1
With current-limiting resistance R2, described warning circuit includes audion VT1, Light-Emitting Diode LED1, buzzer B1.
Preferably, one end of described Guan Bi on and off switch K1 connects the positive pole of power supply VCC, and the other end connects described current limliting electricity
One end of resistance R2, the other end of described current-limiting resistance R2 connects one end of described LED 2, described light emitting diode
The other end of LED2 connects one end of described stabilivolt VD1, one end of described electric fuse interface J1, described electric fuse interface respectively
The other end of J1 connects the negative pole of power supply VCC.
Preferably, the other end of described stabilivolt VD1 connects one end of described light emitting diode LE1, described light-emitting diodes
The other end of pipe LE1 connects the base stage of described audion VT1, and the colelctor electrode of described audion VT1 connects described buzzer B1's
One end.
Preferably, described audion VT1 is BC547 audion, and described stabilivolt VD1 model is IN4148 and described current limliting
Resistance R2 is 2K resistance.
Preferably, described testing circuit also includes resistance R1, electric capacity C1, the other end of described buzzer B1 and described resistance
One end of R1 connects, and the other end of described resistance R1 connects one end of described electric capacity C1, and the other end of described electric capacity C1 connects institute
State the base stage of audion VT1.
Preferably, described electric capacity C1 is 0.1U electric capacity, and described resistance R1 is 1K resistance.
Preferably, described testing circuit also includes chip IC 1, one end of described chip IC 1 and described Guan Bi on and off switch
The other end of K1 connects, the other end of described chip IC 1 and the negative pole of described power supply VCC, the other end of described buzzer B1, institute
The one end stating resistance R1 connects.
Preferably, described chip IC 1 is 78L05 chip.
This utility model provides a kind of testing circuit, and described circuit includes normal operating circuit and warning circuit, described just
Often operating circuit includes electric fuse interface J1, Guan Bi on and off switch K1, LED 2, stabilivolt VD1 and current-limiting resistance
R2, described warning circuit includes audion VT1, Light-Emitting Diode LED1, buzzer B1, simplifies electric fuse break-make detection method,
Promote work efficiency；Optimize measuring instrument, substitute the special instrument such as circuit tester and detect all kinds of fuse component break-makes, reduce into
This；And showing testing result more intuitively with the form that acousto-optic combines, accuracy rate is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of testing circuit that this utility model provides；
Fig. 2 is the structural representation of the another kind of testing circuit that this utility model provides.
Detailed description of the invention
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by detailed description of the invention.
It is the structural representation of a kind of testing circuit that this utility model provides with reference to Fig. 1, Fig. 1.
Concrete, as it is shown in figure 1, include electric fuse 10 and the blown fuse testing circuit 12 of band acousto-optic prompting function,
Described electric fuse 10 is connected with the blown fuse testing circuit 12 of described band acousto-optic prompting function, for by described electric fuse
10 access described band acousto-optic prompting functions blown fuse testing circuits 12 and by the electric fuse of described band acousto-optic prompting function
Fusing testing circuit 12 draws testing result, such as blown fuse, LED flashing etc. after processing.
It is the structural representation of the another kind of testing circuit that this utility model provides with reference to Fig. 2, Fig. 2.
A kind of testing circuit, it is characterised in that described circuit includes the normal operating circuit when normal work and use
Warning circuit when non-normal working, described normal operating circuit includes electric fuse interface J1, Guan Bi on and off switch K1, luminescence
Diode (LED) 2, stabilivolt VD1 and current-limiting resistance R2, described warning circuit includes audion VT1, Light-Emitting Diode LED1, honeybee
Ring device B1.
One end of described Guan Bi on and off switch K1 connects the positive pole of power supply VCC, and the other end connects described current-limiting resistance R2's
One end, the other end of described current-limiting resistance R2 connects one end of described LED 2, described LED 2
The other end connects one end of described stabilivolt VD1, one end of described electric fuse interface J1 respectively, and described electric fuse interface J1's is another
One end connects the negative pole of power supply VCC.
The other end of described stabilivolt VD1 connects one end of described light emitting diode LE1, described light emitting diode LE1's
The other end connects the base stage of described audion VT1, and the colelctor electrode of described audion VT1 connects one end of described buzzer B1.
Described audion VT1 is BC547 audion, and described stabilivolt VD1 model is IN4148 and described current-limiting resistance R2
For 2K resistance.
Described testing circuit also includes resistance R1, electric capacity C1, the other end of described buzzer B1 and the one of described resistance R1
End connects, and the other end of described resistance R1 connects one end of described electric capacity C1, and the other end of described electric capacity C1 connects described three poles
The base stage of pipe VT1.
Described electric capacity C1 is 0.1U electric capacity, and described resistance R1 is 1K resistance.
Described testing circuit also includes another of chip IC 1, one end of described chip IC 1 and described Guan Bi on and off switch K1
End connects, the other end of described chip IC 1 and the negative pole of described power supply VCC, the other end of described buzzer B1, described resistance R1
One end connect.
Described chip IC 1 is 78L05 chip.
Concrete, electric fuse is loaded J1, closes power switch K1, start detection and load electric fuse, when J1 electric fuse is led
Time logical, LED2 forms the conducting luminescence of Huis road by current-limiting resistance R2, VCC power supply and detected electric fuse J1, and instruction is detected
Electric fuse is normal.VD1 forward conduction simultaneously, its forward voltage drop works from blinking light emitting diode LED1 and VT1, at this moment not
VT1 ends, and buzzer B not sounding, LED does not works.
When detecting J1 blown fuse, LED2 electric power loop is cut off, and LED2 lamp does not works.VD1 now ends, 5V power supply
Voltage makes VT1 turn on immediately by R1, LED1, and B1 obtains the electric alarm sound that sends and points out, and LED1 is because there being electric current to flow through the most simultaneously
Stopping ground flashing, LED1 flashing and B1 send alarm sound thus realize the acousto-optic prompting of circuit and report to the police.The work of C1
With being to prevent owing in LED1 work process, break-make causes B to have the hum of " snapping ".
Can first be not connected to J1 electric fuse before detection, check whether LED1 whether flashing and B1 send alarm sound and sentence
Determine blown fuse testing circuit the most working properly.
This utility model provides a kind of testing circuit, and described circuit includes normal operating circuit and warning circuit, described just
Often operating circuit includes electric fuse interface J1, Guan Bi on and off switch K1, LED 2, stabilivolt VD1 and current-limiting resistance
R2, described warning circuit includes audion VT1, Light-Emitting Diode LED1, buzzer B1, simplifies electric fuse break-make detection method,
Promote work efficiency；Optimize measuring instrument, substitute the special instrument such as circuit tester and detect all kinds of fuse component break-makes, reduce into
This；And showing testing result more intuitively with the form that acousto-optic combines, accuracy rate is higher.
Know-why of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
By novel principle, and the restriction to this utility model protection domain can not be construed to by any way.Based on explanation herein,
Those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present utility model,
Within these modes fall within protection domain of the present utility model.
Claims (6)
1. a testing circuit, it is characterised in that described circuit include the normal operating circuit when normal work and for
Warning circuit during non-normal working, described normal operating circuit includes electric fuse interface J1, Guan Bi on and off switch K1, luminescence two
Pole pipe LED2, stabilivolt VD1 and current-limiting resistance R2, described warning circuit includes audion VT1, Light-Emitting Diode LED1, buzzing
Device B1；
One end of described Guan Bi on and off switch K1 connects the positive pole of power supply VCC, and the other end connects one end of described current-limiting resistance R2,
The other end of described current-limiting resistance R2 connects one end of described LED 2, the other end of described LED 2
Connecting one end of described stabilivolt VD1, one end of described electric fuse interface J1 respectively, the other end of described electric fuse interface J1 is even
Connect the negative pole of power supply VCC；
The other end of described stabilivolt VD1 connects one end of described light emitting diode LE1, another of described light emitting diode LE1
End connects the base stage of described audion VT1, and the colelctor electrode of described audion VT1 connects one end of described buzzer B1.
Testing circuit the most according to claim 1, it is characterised in that described audion VT1 is BC547 audion, described
Stabilivolt VD1 model is IN4148 and described current-limiting resistance R2 is 2K resistance.
Testing circuit the most according to claim 2, it is characterised in that described testing circuit also includes resistance R1, electric capacity C1,
The other end of described buzzer B1 is connected with one end of described resistance R1, and the other end of described resistance R1 connects described electric capacity C1's
One end, the other end of described electric capacity C1 connects the base stage of described audion VT1.
Testing circuit the most according to claim 3, it is characterised in that described electric capacity C1 is 0.1U electric capacity, described resistance R1
For 1K resistance.
5., according to the testing circuit described in Claims 1-4 any one, described testing circuit also includes chip IC 1, described core
One end of sheet IC1 is connected with the other end of described Guan Bi on and off switch K1, the other end of described chip IC 1 and described power supply VCC
Negative pole, the other end of described buzzer B1, described resistance R1 one end connect.
Testing circuit the most according to claim 5, it is characterised in that described chip IC 1 is 78L05 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348663.7U CN205880034U (en) | 2016-04-22 | 2016-04-22 | Detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348663.7U CN205880034U (en) | 2016-04-22 | 2016-04-22 | Detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205880034U true CN205880034U (en) | 2017-01-11 |
Family
ID=57687332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620348663.7U Expired - Fee Related CN205880034U (en) | 2016-04-22 | 2016-04-22 | Detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205880034U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184986A (en) * | 2021-10-29 | 2022-03-15 | 浪潮(北京)电子信息产业有限公司 | Capacitor abnormity detection device and server |
-
2016
- 2016-04-22 CN CN201620348663.7U patent/CN205880034U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184986A (en) * | 2021-10-29 | 2022-03-15 | 浪潮(北京)电子信息产业有限公司 | Capacitor abnormity detection device and server |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |