CN202471907U - Board testing circuit - Google Patents
Board testing circuit Download PDFInfo
- Publication number
- CN202471907U CN202471907U CN2011204996901U CN201120499690U CN202471907U CN 202471907 U CN202471907 U CN 202471907U CN 2011204996901 U CN2011204996901 U CN 2011204996901U CN 201120499690 U CN201120499690 U CN 201120499690U CN 202471907 U CN202471907 U CN 202471907U
- Authority
- CN
- China
- Prior art keywords
- indicating member
- circuit board
- capacitor
- integrated circuit
- contact
- 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.)
- Expired - Fee Related
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model relates to a board testing circuit including an indication module displaying test information, a resistor R1 connecting with the indication module in series, a power source supplying power for the testing circuit, and a capacitor C1. A positive electrode of the power source connects with the resistor R1 and the indication module. A positive electrode of the capacitor C1 connects with the positive electrode of the power source while a negative electrode of the capacitor C1 is in ground connection. A to-be-tested contact of a circuit board connects with the indication module. The board testing circuit provided by the utility model has simple circuit connection, and is low in cost and high in operation efficiency.
Description
Technical field
The utility model relates to a kind of test circuit, relates in particular to a kind of integrated circuit board test circuit.
Background technology
In process of production, detecting for the integrated circuit board of electronic circuit is the necessary operation of electronic product industry.Prior art detects particularly for the more detection of check point integrated circuit board for integrated circuit board, adopts complicated circuitry to connect usually, makes pick-up unit complex structure, cost height.
The utility model content
The technical matters that the utility model solves is: make up a kind of integrated circuit board test circuit, overcome the technical matters that prior art integrated circuit board testing circuit is complicated, cost is high.
The technical scheme of the utility model is: make up a kind of integrated circuit board test circuit; The resistance R 1 of the series connection that comprise the indicating member that shows detecting information, is connected, be the power supply of test circuit power supply with said indicating member; And capacitor C 1, said positive source connecting resistance R1 and indicating member, said capacitor C 1 positive pole connects positive source; Minus earth, said circuit board contact to be measured connects said indicating member.
The further technical scheme of the utility model is: said resistance R 1 and indicating member are a plurality of, after a said resistance R 1 and 1 series connection of a capacitor C again and be connected in said positive source, contact to be measured of said indicating member connection.
The further technical scheme of the utility model is: the positive pole of an indicating member of a termination of a said contact to be tested; The negative pole of another this indicating member of termination of said this contact to be tested and the positive pole of next indicating member; And the like; One end of last contact to be tested is connected with the negative pole of last indicating member, and inserts the negative pole formation detection loop of power supply.
The further technical scheme of the utility model is: said indicating member is a pilot lamp.
The further technical scheme of the utility model is: said pilot lamp is a LED light.
The technique effect of the utility model is: a kind of integrated circuit board test circuit of the utility model; The resistance R 1 of the series connection that comprise the indicating member that shows detecting information, is connected, be the power supply of test circuit power supply with said indicating member; And capacitor C 1, said positive source connecting resistance R1 and indicating member, said capacitor C 1 positive pole connects positive source; Minus earth, said circuit board contact to be measured connects said indicating member.The utility model circuit connects simply, cost is low, and operational efficiency is high.
Description of drawings
Fig. 1 is the circuit diagram of the utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model technical scheme is further specified.
As shown in Figure 1; The embodiment of the utility model is: makes up a kind of integrated circuit board test circuit, the resistance R 1 of the series connection that comprise the indicating member 2 that shows detecting information, is connected, is the power supply 1 of test circuit power supply with said indicating member 2, and capacitor C 1; Said power supply 1 anodal connecting resistance R1 and indicating member 2; Said capacitor C 1 positive pole connects positive source, minus earth, and said circuit board contact to be measured connects said indicating member 2.
As shown in Figure 1, the practical implementation process of the utility model is: circuit board under test comprises a plurality of connecting pin to be measured, is respectively first pin, crus secunda ... The N pin; From power supply of circuit board under test first pin input; And sealing in a said indicating member 2 with it, said indicating member 2 positive poles join with power supply 1 positive pole, second pin of negative pole reception slowdown monitoring circuit plate; And this pin also is the anodal input pin of second said indicating member 2 sealing in; The 3rd pin of the negative pole reception slowdown monitoring circuit plate of second said indicating member 2, and be the positive pole input of the 3rd said indicating member 2, the rest may be inferred.The negative pole of the pin of last circuit board under test and last indicating member 2 joins, and inserts the negative pole formation detection loop of power supply 1.During work, in the specific embodiment, indicating member 2 is the LED lamp.Utilize test point that LED lamp and test integrated circuit board reset switch pin be attached thereto mutually and connect; Jigsaw order by integrated circuit board is connected with pilot lamp; Each pilot lamp resistance R 1 of all connecting, in case extinguish with the corresponding indicating member 2 of integrated circuit board, proving should the short circuit of test integrated circuit board.This LED lamp is in series with a resistance simultaneously, in case the LED lamp extinguishes short circuit, input voltage constitutes a loop through resistance to ground; Thereby can not constitute entire circuit direct short-circuit; Do not influence with it and other test lamp operate as normal that connects, really realize which integrated circuit board short circuit, which LED lamp extinguishes; Test specific to point open-and-shut purpose during maintenance when reaching test.
As shown in Figure 1, the preferred implementation of the utility model is: said resistance R 1 and indicating member 2 are a plurality of, after a said resistance R 1 and 1 series connection of a capacitor C again and be connected in said power supply 1 positive pole, contact to be measured of a said indicating member 2 connections.The positive pole of an indicating member 2 of one termination of a said contact to be tested; The negative pole of this indicating member 2 of another termination of said this contact to be tested and the positive pole of next indicating member; And the like; One end of last contact to be tested is connected with the negative pole of last indicating member 2, and inserts the negative pole formation detection loop of power supply.Said indicating member 2 is a pilot lamp, and said pilot lamp is a LED light.
The technique effect of the utility model is: a kind of integrated circuit board test circuit of the utility model; The resistance R 1 of the series connection that comprise the indicating member 2 that shows detecting information, is connected, be the power supply 1 of test circuit power supply with said indicating member 2; And capacitor C 1, said power supply 1 anodal connecting resistance R1 and indicating member 2, said capacitor C 1 positive pole connects positive source; Minus earth, said circuit board contact to be measured connects said indicating member 2.The utility model circuit connects simply, cost is low, and operational efficiency is high.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (5)
1. integrated circuit board test circuit; The resistance R 1 of the series connection that comprise the indicating member that shows detecting information, is connected, be the power supply of test circuit power supply with said indicating member, and capacitor C 1, it is characterized in that; Said positive source connecting resistance R1 and indicating member; Said capacitor C 1 positive pole connects positive source, minus earth, and said circuit board contact to be measured connects said indicating member.
2. according to the said integrated circuit board test circuit of claim 1; It is characterized in that; It is a plurality of that said resistance R 1 and indicating member are, after a said resistance R 1 and 1 series connection of a capacitor C again and be connected in said positive source, contact to be measured of said indicating member connection.
3. according to the said integrated circuit board test circuit of claim 1; It is characterized in that; The positive pole of an indicating member of one termination of a said contact to be tested, the negative pole of another this indicating member of termination of said this contact to be tested and the positive pole of next indicating member, and the like; One end of last contact to be tested is connected with the negative pole of last indicating member, and inserts the negative pole formation detection loop of power supply.
4. according to claim 1,2 or 3 said integrated circuit board test circuits, it is characterized in that said indicating member is a pilot lamp.
5. according to the said integrated circuit board test circuit of claim 4, it is characterized in that said pilot lamp is a LED light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204996901U CN202471907U (en) | 2011-12-05 | 2011-12-05 | Board testing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204996901U CN202471907U (en) | 2011-12-05 | 2011-12-05 | Board testing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471907U true CN202471907U (en) | 2012-10-03 |
Family
ID=46920059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204996901U Expired - Fee Related CN202471907U (en) | 2011-12-05 | 2011-12-05 | Board testing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471907U (en) |
-
2011
- 2011-12-05 CN CN2011204996901U patent/CN202471907U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20161205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |