CN207992390U - A kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation - Google Patents
A kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation Download PDFInfo
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- CN207992390U CN207992390U CN201721737947.6U CN201721737947U CN207992390U CN 207992390 U CN207992390 U CN 207992390U CN 201721737947 U CN201721737947 U CN 201721737947U CN 207992390 U CN207992390 U CN 207992390U
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Abstract
The utility model is related to a kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation, and wherein device includes detection circuit bottom plate and display board；Detection circuit bottom plate is electrically connected with display board by way of grafting；Detection circuit bottom plate is suitable for being detected chip under test in the case where not welding chip under test, and is shown on the display panel to test data.Development cost is low, easy to use, quick, and detection is accurate, reliable, effective.It can be effectively reduced cost during research and production, shorten the period, improve development and production capacity and efficiency.
Description
Technical field
The utility model is related to detection fields, and dress is detected in particular to a kind of axes-angle conversion chip of QFP64 encapsulation
It sets.
Background technology
The axes-angle conversion chip of existing QFP64 encapsulation, due to its integrated level height, powerful, specificity is strong, so valence
Lattice are higher, higher for middle-size and small-size scientific research enterprise research and production cost, if the chip of buying back does not know its work(before welding
Can whether normal, failure of chip is just found after welding, not can determine that the opportunity that failure of chip occurs not only so, and give birth to scientific research
Production increases additional time and economic cost.
Domestic factor and manufacturer do not provide detection device at present, also not can be used for this type chip in the market
The detection device suitable for middle-size and small-size scientific research enterprise, if finding third party testing agency, external coordination is of high cost and the period is long,
Influence scientific research progress.
It is urgently to be resolved hurrily at present for how solving the above problems.
Utility model content
The purpose of this utility model is to provide a kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation, above-mentioned to solve
Problem.
To achieve the goals above, the technical solution that the utility model embodiment uses is as follows：
The utility model provides a kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation, including
Detection circuit bottom plate and display board；
The detection circuit bottom plate is electrically connected with the display board by way of grafting；
The detection circuit bottom plate is suitable for being detected chip under test in the case where not welding chip under test, and aobvious
Show and test data is shown on plate.
In the utility model preferred embodiment, the detection circuit bottom plate includes：
Main control module, excitatory module, rotation become module and chip mount pad；
The chip mount pad, which is suitable for placing, is detected chip；
The main control module is electrically connected with the chip mount pad and the excitatory module respectively, and suitable for sending out
Signal is detected to the excitatory module；
The excitatory module also becomes module with the mounting seat and rotation respectively and is electrically connected, and is suitable for chip under test
Derived reference signal is provided and is carried out the detection signal received excitatory；
The rotation becomes module and is fixedly connected with the chip mount pad, and suitable for being detected after excitatory according to receiving
Signal generation position signal is sent to detected chip；
It is detected and is sent to main control module after chip converts the position signal received and shows on the display panel.
In the utility model preferred embodiment, the excitatory module includes voltage comparator and amplifier chip；
The main control module is electrically connected by voltage comparator and amplifier chip.
In the utility model preferred embodiment, the detection circuit bottom plate further includes power module；
The axes-angle conversion chip-detecting apparatus that the power module is suitable for the QFP64 encapsulation provides power supply.
In the utility model preferred embodiment, the power module includes regulator circuit and reduction voltage circuit.
In the utility model preferred embodiment, the detection circuit bottom plate includes being electrically connected with the main control module
Indicating lamp module；
The main control module is further adapted in the working condition for receiving control indicating lamp module to show that the QFP64 is encapsulated
Axes-angle conversion chip-detecting apparatus operating status.
The utility model additionally provides a kind of axes-angle conversion chip detecting method of QFP64 encapsulation, the QFP64 encapsulation
Axes-angle conversion chip detecting method by being detected to chip under test in the case where not welding chip under test, and showing
Display is carried out to test data on plate and judges whether the function of being detected chip is normal according to display result.
It is described to include to the method that chip under test is detected in the utility model preferred embodiment：
Main control chip exports square-wave signal；
Square-wave signal is sent to chip under test after overexcitation and rotation become；
Chip under test is sent to main control chip after converting the signal received.
In the utility model preferred embodiment, the method for the quality for judging to be detected chip according to display result
Including：
Continuous rotation rotation becomes；
If when rotation becomes rotation, the regular consecutive variations of result are shown, then chip under test function is normal；
If when rotation becomes rotation, the irregular saltus step of result is shown, then chip under test failure.
Compared with the existing technology, the utility model embodiment has the advantages that：
The utility model embodiment provides a kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation, wherein device packet
Include detection circuit bottom plate and display board；Detection circuit bottom plate is electrically connected with display board by way of grafting；Detection circuit
Bottom plate is suitable for being detected chip under test in the case where not welding chip under test, and is carried out on the display panel to test data
Display.Development cost is low, easy to use, quick, and detection is accurate, reliable, effective.It can effectively be reduced into during research and production
This, shortens the period, improves development and production capacity and efficiency.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structural schematic diagram of the axes-angle conversion chip-detecting apparatus of QFP64 encapsulation provided by the utility model.
Fig. 2 is a kind of principle schematic of the axes-angle conversion chip-detecting apparatus of QFP64 encapsulation provided by the utility model.
Fig. 3 is a kind of main control module of the axes-angle conversion chip-detecting apparatus of QFP64 encapsulation provided by the utility model
Circuit diagram.
Fig. 4 is a kind of excitatory module of the axes-angle conversion chip-detecting apparatus of QFP64 encapsulation provided by the utility model
Circuit diagram.
Fig. 5 is that a kind of rotation of the axes-angle conversion chip-detecting apparatus for QFP64 encapsulation that utility model provides becomes the electricity of module
Lu Tu.
Fig. 6 is a kind of regulator circuit signal of the axes-angle conversion chip-detecting apparatus for QFP64 encapsulation that utility model provides
Figure.
Fig. 7 is a kind of showing for the reduction voltage circuit of the axes-angle conversion chip-detecting apparatus for QFP64 encapsulation that utility model provides
It is intended to.
Fig. 8 is a kind of indicating lamp module of the axes-angle conversion chip-detecting apparatus for QFP64 encapsulation that utility model provides
Circuit diagram.
Specific implementation mode
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
Embodiment
Referring to Fig. 1, the utility model embodiment provides a kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation.
The axes-angle conversion chip-detecting apparatus of QFP64 encapsulation, including detection circuit bottom plate and display board.
Detection circuit bottom plate is electrically connected with display board by way of grafting；Detection circuit bottom plate is suitable for not welding quilt
Chip under test is detected in the case of surveying chip, and test data is shown on the display panel.Development cost is low, makes
With convenient, fast, detection is accurate, reliable, effectively.It can be effectively reduced cost during research and production, shorten the period, raising is ground
System and production capacity and efficiency.
Referring to Fig. 2, detection circuit bottom plate includes：Main control module, excitatory module, rotation becomes module and chip installs bottom
Seat.
Wherein, chip mount pad, which is suitable for placing, is detected chip, circular indicia and core when surveying chip installation on chip
The circular indicia of piece mounting seat setting corresponds to；Main control module is electrically connected with chip mount pad and excitatory module respectively,
And suitable for sending out detection signal to excitatory module；Excitatory module also becomes module with mounting seat and rotation respectively and is electrically connected, and
Chip under test is suitable for derived reference signal is provided and is carried out the detection signal received excitatory；Rotation becomes module and is installed with chip
Pedestal is fixedly connected, and is sent to detected chip by excitatory rear detection signal generation position signal suitable for what basis received；
It is detected and is sent to main control module after chip converts the position signal received and shows on the display panel.Rotation becomes module
Physical circuit figure it is as shown in Figure 5.
Specifically, the model C8051F120 that main control module uses, physical circuit figure are as shown in Figure 3.
In the present embodiment, excitatory module includes voltage comparator and amplifier chip；Main control module is compared by voltage
Device is electrically connected with amplifier chip, the wherein model TL082ID of voltage comparator, the model PA162KD of amplifier chip.Swash
The physical circuit figure of magnetic module is as shown in Figure 4.
Please continue to refer to Fig. 1, in the present embodiment, detection circuit bottom plate further includes power module；Power module is suitable for
The axes-angle conversion chip-detecting apparatus of QFP64 encapsulation provides power supply.
Wherein, power module includes regulator circuit and reduction voltage circuit.The physical circuit figure of regulator circuit as shown in Fig. 6,
The physical circuit figure of reduction voltage circuit is as shown in Figure 7.
In the present embodiment, detection circuit bottom plate includes the indicating lamp module being electrically connected with main control module；Main control module
It is further adapted in the working condition for receiving control indicating lamp module to show the fortune of the axes-angle conversion chip-detecting apparatus of QFP64 encapsulation
Row state.
Specific indicating lamp module includes indicator light V3, indicator light V5 and indicator light V4, the specific electricity of indicating lamp module
Road figure is as shown in Figure 8.
Wherein, when indicator light V3 long is bright, detection circuit bottom plate normal work is indicated；Indicator light V5 flickers, indicate master control mould
Block is working properly；Indicator light V4, if when rotation becomes rotation, V4 flickers therewith, and when rotation becomes and do not rotate, V4 long is bright or not
Bright or irregular flicker illustrates that chip under test installation is good, if when rotation becomes rotation, V4 does not flicker, and illustrates chip under test not
It installs.
Operation principle is as follows, and main control module sends 2K square-wave signals to excitatory module, and excitatory module is provided to chip under test
Derived reference signal and to rotation become module provide 2K sine waves it is excitatory, rotation become module generated under the excitatory effect of the just profound waves of 2K
Position signal (difference just, cosine signal) is simultaneously sent to chip under test, and 16 are exported after being converted by chip under test as binary parallel
Data Concurrent is given main control module and is shown on the display panel.By observing the state of indicating module and the result of display board
Changing rule judges whether chip under test function is normal.
Second embodiment
The utility model embodiment additionally provides a kind of axes-angle conversion chip detecting method of QFP64 encapsulation, QFP64 encapsulation
Axes-angle conversion chip detecting method by being detected to chip under test in the case where not welding chip under test, and showing
Display is carried out to test data on plate and judges whether the function of being detected chip is normal according to display result.
Wherein, include to the method that chip under test is detected：Main control chip exports square-wave signal；Square-wave signal is through too drastic
Magnetic and rotation are sent to chip under test after becoming；Chip under test is sent to main control chip after converting the signal received.
Wherein, judge that the method for the quality for being detected chip includes according to display result：Continuous rotation rotation becomes；If becoming in rotation
When rotation, the regular consecutive variations of result are shown, then chip under test function is normal；If when rotation becomes rotation, display result is equal
Irregular saltus step, then chip under test failure.
In the present embodiment, during rotation becomes, shown in the data variation rule following table of output when chip under test is normal.Its
In, the speed that rotation becomes rotation is not more than 2 °/S.
In conclusion the utility model provides a kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation, wherein device
Including detection circuit bottom plate and display board；Detection circuit bottom plate is electrically connected with display board by way of grafting；Detection electricity
Road bottom plate be suitable for chip under test is detected in the case where not welding chip under test, and on the display panel to test data into
Row display.Development cost is low, easy to use, quick, and detection is accurate, reliable, effective.It can effectively be reduced during research and production
Cost shortens the period, improves development and production capacity and efficiency.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to which its technology is determined according to right
Property range.
Claims (5)
1. a kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation, it is characterised in that：Including
Detection circuit bottom plate and display board；
The detection circuit bottom plate is electrically connected with the display board by way of grafting；
The detection circuit bottom plate is suitable for being detected chip under test in the case where not welding chip under test, and in display board
On test data is shown；
The detection circuit bottom plate includes：
Main control module, excitatory module, rotation become module and chip mount pad；
The chip mount pad, which is suitable for placing, is detected chip；
The main control module is electrically connected with the chip mount pad and the excitatory module respectively, and suitable for sending out detection
Signal gives the excitatory module；
The excitatory module also becomes module with the mounting seat and rotation respectively and is electrically connected, and is suitable for chip under test offer
Derived reference signal and by the detection signal received carry out it is excitatory；
The rotation becomes module and is fixedly connected with the chip mount pad, and suitable for according to receiving by detection signal after excitatory
Generation position signal is sent to detected chip；
It is detected and is sent to main control module after chip converts the position signal received and shows on the display panel.
2. the axes-angle conversion chip-detecting apparatus of QFP64 encapsulation as described in claim 1, which is characterized in that
The excitatory module includes voltage comparator and amplifier chip；
The main control module is electrically connected by voltage comparator and amplifier chip.
3. the axes-angle conversion chip-detecting apparatus of QFP64 encapsulation as described in claim 1, which is characterized in that
The detection circuit bottom plate further includes power module；
The axes-angle conversion chip-detecting apparatus that the power module is suitable for the QFP64 encapsulation provides power supply.
4. the axes-angle conversion chip-detecting apparatus of QFP64 encapsulation as claimed in claim 3, which is characterized in that
The power module includes regulator circuit and reduction voltage circuit.
5. the axes-angle conversion chip-detecting apparatus of QFP64 encapsulation as described in claim 1, which is characterized in that
The detection circuit bottom plate includes the indicating lamp module being electrically connected with the main control module；
The main control module is further adapted in the working condition for receiving control indicating lamp module to show the shaft angle of the QFP64 encapsulation
The operating status of conversion chip detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721737947.6U CN207992390U (en) | 2017-12-13 | 2017-12-13 | A kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721737947.6U CN207992390U (en) | 2017-12-13 | 2017-12-13 | A kind of axes-angle conversion chip-detecting apparatus of QFP64 encapsulation |
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| Publication Number | Publication Date |
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| CN207992390U true CN207992390U (en) | 2018-10-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254665A (en) * | 2017-12-13 | 2018-07-06 | 常州第四无线电厂有限公司 | A kind of the axes-angle conversion chip-detecting apparatus and method of QFP64 encapsulation |
-
2017
- 2017-12-13 CN CN201721737947.6U patent/CN207992390U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254665A (en) * | 2017-12-13 | 2018-07-06 | 常州第四无线电厂有限公司 | A kind of the axes-angle conversion chip-detecting apparatus and method of QFP64 encapsulation |
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