CN108983070A - A kind of detection system of circuit board - Google Patents
A kind of detection system of circuit board Download PDFInfo
- Publication number
- CN108983070A CN108983070A CN201810597511.4A CN201810597511A CN108983070A CN 108983070 A CN108983070 A CN 108983070A CN 201810597511 A CN201810597511 A CN 201810597511A CN 108983070 A CN108983070 A CN 108983070A
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- diode
- circuit board
- resistance
- gate
- detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
- G01R31/2812—Checking for open circuits or shorts, e.g. solder bridges; Testing conductivity, resistivity or impedance
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention discloses a kind of detection systems of circuit board, including the power supply module for providing a system to electric energy, for detecting the on-off detection module of electronic component on state, triode detection module for detection transistor use state, indicator light for intuitively being shown to detecting state, single chip microcomputer main control system and multiple electric pressure converters for overall signal processing, the detection system of circuit board of the present invention has multiple voltage converter, the common 3.3V of circuit board currently on the market can be exported, 5V, 9V and 12V DC voltage output, it can satisfy the energization detection demand of the circuit board of above-mentioned power demands, it is also provided with on-off detection module simultaneously, it includes positive and negative test pencil, it can be convenient detection diode, resistance, the conduction status of the elements such as capacitor, and it is also provided with individual triode detection Module is capable of the situation of the quick triode in detection circuit board, this detection system structure is simple, easy to operate, convenient for the quick detection to circuit board.
Description
Technical field
The present invention relates to circuit board technology field, the detection system of specifically a kind of circuit board.
Background technique
In circuit board fabrication industry at this stage, the quality control major way of the circuit board after the completion of producing
Be: operator is directly taken out circuit board with hand from the magazine equipped with circuit board, is then held circuit board and is examined under the microscope
Circuit board is put back to magazine with hand after inspection by the product quality for looking into circuit board, and operator needs with hand correctly successively
Circuit board is taken out from magazine, magazine is put back in inspection after terminating.This test mode can be because operator's hand contacts circuit
Plate, dirt contamination circuit board on hand, and then influence product quality；Being also possible to can be because operator's human error damages circuit
Plate；Some circuit boards are it is also possible to by operator's missing inspection；And this test mode low efficiency.With the hair of circuit-board industry
Exhibition, also higher and higher to product quality requirement, above-mentioned test mode can not meet the quality inspection of high-volume high-Q circuit plate
The requirement looked into.In circuit board outgoing detection process and standby redundancy debugging process, using traditional debugging method, that is, hand
Work detection circuit board, only manually, by rule of thumb, breakdown judge quality and in terms of be all unable to reach the market demand, manage
It is to be put into model system as genuine environment or whether just subsystem is seen by the upper simplest method of detection circuit board function
Often operation, the test is there are many disadvantages, such as subsystem poor universality and more at high cost than general traditional test platform, operation compared with
Complexity, while also will increase the cost of detection.Its reason is existing circuit board detecting system complex, and volume is big, and operation is not
It is convenient, increase the operation difficulty of worker.
Summary of the invention
The purpose of the present invention is to provide a kind of detection systems of circuit board, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of detection system of circuit board, including for providing a system to electric energy power supply module, for detect electronics member
The on-off detection module of part on state, for detection transistor use state triode detection module, for detection shape
The indicator light that state is intuitively shown, single chip microcomputer main control system and multiple electric pressure converters for overall signal processing are described
Electric pressure converter includes 3.3V electric pressure converter, 5V electric pressure converter, 9V electric pressure converter and 12V electric pressure converter, the list
Piece machine master control system is separately connected power supply module, on-off detection module, triode detection module, indicator light, the conversion of 3.3V voltage
Device, 5V electric pressure converter, 9V electric pressure converter and 12V electric pressure converter.
As a preferred solution of the present invention: the power supply module includes solar panels T, resistance R1, capacitor L1 and relay
One end of J, the resistance R1 connects capacitor C1 and 220V alternating current, the other end of the other end connection capacitor C1 of resistance R1 and whole
Flow the port 1 of bridge T, the port 3 of rectifier bridge T connects the other end of 220V alternating current, the port 2 of rectifier bridge T connect capacitor C2 and
The pin 1 of chip IC 1, the pin 13 of chip IC 1 connect the contact J-2 of relay J, and the other end of capacitor C2 connects battery E
Cathode, solar panels T, relay J, the pin 2 of chip IC 1 and rectifier bridge T port 4, solar panels T the other end connection
The anode of diode D1, the cathode of diode D1 connect the anode of the contact J-1 and diode D2 of resistance R2, relay J, two poles
The other end and voltage U1 of the contact J-2 of the cathode connection relay J of pipe D2, the other end of the contact J-1 of relay J, which connects, to be stored
The anode of battery E, the cathode of the other end connection diode D3 of resistance R2, the anode connection relay J's of diode D3 is another
End, the model LM7812 of chip IC 2.
As a preferred solution of the present invention: the triode detection module includes NOT gate U1, resistance R3, capacitor C1 and switch
S1, which is characterized in that one end of the switch S1 connects voltage U1, and the power end of the other end connection NOT gate U6 of switch S1 is non-
The input terminal of door U6 connects resistance R4, and the other end of resistance R4 connects resistance R3 and capacitor C1, and another point connection of capacitor C1 is non-
Output end, the input terminal of NOT gate U3 and the input terminal of NOT gate U4 of door U5, the output end of the other end connection NOT gate U6 of resistance R3,
The input terminal of the input terminal of NOT gate U5, the input terminal of NOT gate U1 and NOT gate U2, the output of the output end connection NOT gate U2 of NOT gate U1
It holds, the other end connecting test end 2 of resistance R1 and resistance R2, resistance R2, the output end of the output end connection NOT gate U4 of NOT gate U3,
The anode of diode D5, the cathode of diode D6 and test lead 3, the anode of the cathode connection diode D6 of diode D5, two poles
The other end of the cathode of pipe D1, the anode of diode D2 and resistance R1, the cathode of the anode connection diode D3 of diode D1, two
The cathode and test lead 1 of the anode connection diode D4 of pole pipe D3, the anode of the cathode connection diode D4 of diode D2.
As a preferred solution of the present invention: the diode D5 and diode D6 is light emitting diode.
As a preferred solution of the present invention: the voltage U1 is 9V direct current.
As a preferred solution of the present invention: the single chip microcomputer main control system selects AT89C51 type single-chip microcontroller.
As a preferred solution of the present invention: the indicator light is red LED lamp.
As a preferred solution of the present invention: the solar panels are small size mono-crystalline silicon solar plate.
Compared with prior art, the beneficial effects of the present invention are: the detection system of circuit board of the present invention has multiple voltage
Converter can export circuit board common 3.3V, 5V, 9V and 12V DC voltage output currently on the market, can satisfy
The energization detection demand for stating the circuit board of power demands, while being also provided with on-off detection module comprising positive and negative test pencil, it can be with
Facilitate the conduction status of the elements such as detection diode, resistance, capacitor, and is also provided with individual triode detection module, energy
The situation of triode in enough quick detection circuit boards, this detection system structure is simple, easy to operate, convenient for circuit board
Quickly detection.
Detailed description of the invention
Fig. 1 is overall block diagram of the invention.
Fig. 2 is the circuit diagram of power supply module.
Fig. 3 is the circuit diagram of triode detection module.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
As shown in Figure 1-3, in the embodiment of the present invention, a kind of detection system of circuit board, including for providing a system to electricity
Can power supply module, the on-off detection module for detecting electronic component on state, for detection transistor use state
Triode detection module, the indicator light for intuitively being shown to detecting state, the monolithic owner for overall signal processing
Control system and multiple electric pressure converters, the electric pressure converter include 3.3V electric pressure converter, 5V electric pressure converter, 9V voltage turn
Parallel operation and 12V electric pressure converter, the single chip microcomputer main control system are separately connected power supply module, on-off detection module, triode inspection
Survey module, indicator light, 3.3V electric pressure converter, 5V electric pressure converter, 9V electric pressure converter and 12V electric pressure converter.
Power supply module includes one end connection capacitor of solar panels T, resistance R1, capacitor L1 and relay J, the resistance R1
C1 and 220V alternating current, the other end of the other end connection capacitor C1 of resistance R1 and the port 1 of rectifier bridge T, the port of rectifier bridge T
The other end of 3 connection 220V alternating currents, the port 2 of rectifier bridge T connect the pin 1 of capacitor C2 and chip IC 1, and chip IC 1 is drawn
Foot 13 connects the contact J-2 of relay J, cathode, solar panels T, the relay J, core of the other end connection battery E of capacitor C2
The pin 2 of piece IC1 and the port 4 of rectifier bridge T, the anode of the other end connection diode D1 of solar panels T, the yin of diode D1
Pole connects the anode of the contact J-1 and diode D2 of resistance R2, relay J, the contact of the cathode connection relay J of diode D2
The other end and voltage U1 of J-2, the anode of the other end connection battery E of the contact J-1 of relay J, the other end of resistance R2
Connect the cathode of diode D3, the other end of the anode connection relay J of diode D3, the model LM7812 of chip IC 2.
Triode detection module includes NOT gate U1, resistance R3, capacitor C1 and switch S1, which is characterized in that the switch S1
One end connect voltage U1, the power end of the other end connection NOT gate U6 of switch S1, the input terminal of NOT gate U6 connects resistance R4, electricity
The other end for hindering R4 connects resistance R3 and capacitor C1, the input of the output end, NOT gate U3 of another point connection NOT gate U5 of capacitor C1
End and NOT gate U4 input terminal, resistance R3 the other end connection output end of NOT gate U6, the input terminal of NOT gate U5, NOT gate U1 it is defeated
Enter the input terminal at end and NOT gate U2, the output end of NOT gate U1 connects output end, resistance R1 and the resistance R2 of NOT gate U2, resistance R2's
Other end connecting test end 2, the output end connection output end of NOT gate U4, the anode of diode D5, diode D6 of NOT gate U3
Cathode and test lead 3, the cathode of diode D5 connect the anode of the anode of diode D6, the cathode of diode D1, diode D2
With the other end of resistance R1, the cathode of the anode connection diode D3 of diode D1, the anode of diode D3 connects diode D4
Cathode and test lead 1, diode D2 cathode connection diode D4 anode.Diode D5 and diode D6 is luminous two
Pole pipe.Voltage U1 is 9V direct current.Single chip microcomputer main control system selects AT89C51 type single-chip microcontroller.Indicator light is red LED lamp.Too
Positive energy plate is small size mono-crystalline silicon solar plate.
The working principle of the invention is: whole system is powered by power supply module, as shown in Fig. 2, the feelings of daylight abundance
Under condition, solar panels T completes photoelectric conversion and is transferred out electric energy by non-return diode D1, and voltage is enough by resistance
Diode D2 is connected in R2, therefore relay J obtains electric, contact J-1 actuation, J-2 disconnection, and battery E charges, if
Encountering prolonged rainy weather, when the undertension of battery E, output voltage is not enough to breakdown diode D3, therefore after
Electric appliance J is disconnected, and contact J-2 is attracted, and 220V line voltage passes through to be dropped by the capacitance-resistance voltage reduction circuit that capacitor C1 and resistance R1 are formed
It after pressure, enters back into rectifier bridge T and is rectified, the DC voltage exported from the port of rectifier bridge T 2 is using three terminal regulator
System power supply is given after IC1.
System obtain it is electric after, can pass through on-off detection module carry out electronic component conduction detection, on-off detection module tool
Body is positive and negative two test pencils, and detection method is similar to multimeter, the instruction be connected by indicator light, and simultaneity factor is equipped with
3.3V electric pressure converter, 5V electric pressure converter, 9V electric pressure converter and 12V electric pressure converter, can satisfy above-mentioned power demands
Circuit board energization detect demand.
The circuit of triode detection module is as shown in figure 3, NOT gate U5, U6 and capacitor C1 and resistance R3, R4 form pulse
Square-wave oscillator, frequency of oscillation can be selected tens between several hundred Hz.The output state of a and b two o'clock in circuit always phase
Instead.Test point 1 connects the base stage to test tube always, when 2,3 both ends ends connect measured tube, just due to two o'clock difference output phase
Opposite square-wave signal, therefore light emitting diode D5, D6 alternating flashes.When a good NPN type triode is accessed at 2,3 both ends,
Under U1 level point height, U2 level point low state, triode saturation conduction, forcing down for the both ends D1 is extinguished in 1.8V, D5；When U1 point
When level is low, U2 level point is high, triode cut-off, D5 is lighted, and D6 is back bias voltage due to what is added, is still extinguished.Thus determine, when
When " D5 goes out, D6 is bright ", show that measured tube is one have to manage and for NPN type pipe.Similarly, when one good PNP type triode of access
When, then it is that D5 is bright, D6 goes out.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of detection system of circuit board, which is characterized in that including for providing a system to electric energy power supply module, for examining
Survey electronic component on state on-off detection module, for detection transistor use state triode detection module, be used for
To the indicator light that detecting state is intuitively shown, single chip microcomputer main control system and the conversion of multiple voltages for overall signal processing
Device, the electric pressure converter include 3.3V electric pressure converter, 5V electric pressure converter, 9V electric pressure converter and 12V electric pressure converter,
The single chip microcomputer main control system is separately connected power supply module, on-off detection module, triode detection module, indicator light, 3.3V electricity
Pressure converter, 5V electric pressure converter, 9V electric pressure converter and 12V electric pressure converter.
2. a kind of detection system of circuit board according to claim 1, which is characterized in that the power supply module includes the sun
One end connection capacitor C1 and 220V alternating current of energy plate T, resistance R1, capacitor L1 and relay J, the resistance R1, resistance R1's
The other end connects the other end of capacitor C1 and the port 1 of rectifier bridge T, and the port 3 of rectifier bridge T connects the another of 220V alternating current
End, the port 2 of rectifier bridge T connect the pin 1 of capacitor C2 and chip IC 1, and the pin 13 of chip IC 1 connects the contact of relay J
The other end connection cathode of battery E of J-2, capacitor C2, solar panels T, relay J, chip IC 1 pin 2 and rectifier bridge T
Port 4, the anode of the other end connection diode D1 of solar panels T, the cathode of diode D1 connects resistance R2, relay J
Contact J-1 and diode D2 anode, diode D2 cathode connection relay J contact J-2 the other end and voltage U1,
The anode of the other end connection battery E of the contact J-1 of relay J, the cathode of the other end connection diode D3 of resistance R2, two
The other end of the anode connection relay J of pole pipe D3, the model LM7812 of chip IC 1.
3. a kind of detection system of circuit board according to claim 1, which is characterized in that the triode detection module packet
Include NOT gate U1, resistance R3, capacitor C1 and switch S1, which is characterized in that one end of the switch S1 connects voltage U1, switch S1's
The other end connects the power end of NOT gate U6, and the input terminal of NOT gate U6 connects resistance R4, the other end connection resistance R3 of resistance R4 and
Output end, the input terminal of NOT gate U3 and the input terminal of NOT gate U4 of another point connection NOT gate U5 of capacitor C1, capacitor C1, resistance R3
The other end connection output end of NOT gate U6, the input terminal of NOT gate U5, the input terminal of NOT gate U1 and NOT gate U2 input terminal, NOT gate
Output end, resistance R1 and the resistance R2 of the output end connection NOT gate U2 of U1, the other end connecting test end 2 of resistance R2, NOT gate U3
Output end connection the output end of NOT gate U4, the anode of diode D5, diode D6 cathode and test lead 3, diode D5's
Cathode connects the other end of the anode of diode D6, the cathode of diode D1, the anode of diode D2 and resistance R1, diode D1
Anode connection diode D3 cathode, diode D3 anode connection diode D4 cathode and test lead 1, diode D2's
The anode of cathode connection diode D4.
4. a kind of detection system of circuit board according to claim 3, which is characterized in that the diode D5 and diode
D6 is light emitting diode.
5. a kind of detection system of circuit board according to claim 2, which is characterized in that the voltage U1 is 9V direct current
Electricity.
6. a kind of detection system of circuit board according to claim 1, which is characterized in that the single chip microcomputer main control system choosing
Select AT89C51 type single-chip microcontroller.
7. a kind of detection system of circuit board according to claim 1, which is characterized in that the indicator light is red LED
Lamp.
8. a kind of detection system of circuit board according to claim 2, which is characterized in that the solar panels are small size
Mono-crystalline silicon solar plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597511.4A CN108983070A (en) | 2018-06-11 | 2018-06-11 | A kind of detection system of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597511.4A CN108983070A (en) | 2018-06-11 | 2018-06-11 | A kind of detection system of circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108983070A true CN108983070A (en) | 2018-12-11 |
Family
ID=64540263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810597511.4A Withdrawn CN108983070A (en) | 2018-06-11 | 2018-06-11 | A kind of detection system of circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108983070A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609189A (en) * | 2019-09-26 | 2019-12-24 | 珠海格力电器股份有限公司 | Test circuit of electronic component |
-
2018
- 2018-06-11 CN CN201810597511.4A patent/CN108983070A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609189A (en) * | 2019-09-26 | 2019-12-24 | 珠海格力电器股份有限公司 | Test circuit of electronic component |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181211 |
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| WW01 | Invention patent application withdrawn after publication |