CN103728547A - Testing system used for testing circuit board and leakage current testing method - Google Patents
Testing system used for testing circuit board and leakage current testing method Download PDFInfo
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- CN103728547A CN103728547A CN201210385083.1A CN201210385083A CN103728547A CN 103728547 A CN103728547 A CN 103728547A CN 201210385083 A CN201210385083 A CN 201210385083A CN 103728547 A CN103728547 A CN 103728547A
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Abstract
The invention discloses a testing system used for testing a circuit board. The testing system is used for implementing a leakage current testing method to test the leakage current of the circuit board to be tested. The leakage current testing method includes the steps of placing the circuit board to be tested into a testing carrier, providing direct current power for the circuit board to be tested so as to carry out power supply testing on the circuit board to be tested, interrupting the direct current power provided for the circuit board to be tested to halt the circuit board to be tested, obtaining a voltage value of the leakage current of the circuit board to be tested through a leakage current voltage pin position, and judging whether the circuit board to be tested passes a leakage current test under the halting state or not according to the voltage value.
Description
[technical field]
The present invention is relevant for a kind of measurement of leakage current of circuit board, particularly a kind of test macro for testing circuit board and a kind of drain current test method.
[background technology]
In background technology, motherboard must be through the voltage tester of battery and the voltage tester of leakage current for electrical testing, the curved test of plate, motherboard.For electrical testing, be to the motherboard start of power, and the signal of Receiving Host plate signal output end mouth or specific detecting contact exports, whether decision circuitry plate can normally work.For the voltage tester of battery or the measurement of motherboard leakage current of motherboard, must stop power supply to motherboard, under the state of motherboard power-off, measure.Aforementioned measurement is mainly transit dose measurement fixture fixed host computer plate, measuring fixture sees through the devices such as probe, electric connector, produce electric connection with the specific contact of motherboard, and then for outside measurement equipment, for example voltmeter is obtained the magnitude of voltage of aforementioned specific contact, sees through leakage current situation that these magnitudes of voltage judges motherboard whether reach permissible criterion for tester.
For the voltage tester of battery and the test of leakage current of electrical testing, the curved test of plate, motherboard, conventionally at different platforms, test, and need the cooperation of a plurality of manpowers just can complete test jobs.For example, for electrical testing, must in the situation that supplying electric power to motherboard, test, and the voltage tester of the battery of motherboard and the test of leakage current, must the in the situation that of motherboard power-off, test again, therefore conventionally under different platforms, test, and the curved test of plate is because irrelevant with the power supply status of motherboard, and can be integrated in these testing procedures one of them.In addition, the judgement of every test result, record, be mainly to see through manpower to reach.In the process of a large amount of batches of change Test Host plates, the correctness of test is dependent on the correctness of manpower interpretation.Therefore, motherboard fraction defective also cannot real-time update, only can after each batch, add up.If analyze the distribution for electrical testing success or failure, leakage current, cell voltage size, more need further manpower to record one by one the test result of each motherboard, and cause testing efficiency not good.If the part defect of Test Host plate simultaneously, for example the terminal voltage of BIOS battery, plate degree of crook, have more data to record and to add up, and labor intensive more, is often left in the basket accurate data analysis, only simple statistics fraction defective.
In addition, different motherboards has different leakage current permissible criterions.With manpower interpretation in the situation that, easily there are personnel with wrong permissible criterion, interpretation leakage current magnitude of voltage, thereby the problem of generation test result mistake.
[summary of the invention]
Because above problem, the object of the present invention is to provide a kind of test macro for testing circuit board and a kind of for electrical testing and drain current test method, use and solve in known technology field, the efficiency of the test of circuit board is poor and be difficult for the problem of statistic record.
In order to reach above-mentioned purpose, the invention provides a kind of test macro for testing circuit board, for a circuit board under test is supplied to electrical testing, the pacing of going forward side by side tries the leakage current of described circuit board under test.Circuit board under test at least comprises a bios program code storage element, a BIOS setting value buffer unit, a battery, a primary function circuit and a standby power input end, and described standby power input end is used for obtaining a stand-by electric.
Described test macro comprises a test loaded tool and a test circuit.Test loaded tool is used for accommodating circuit board to be tested, and sets up and be electrically connected with circuit board under test.Test circuit comprises a memory module, a controller, a control pin position assembly and a detecting pin position assembly.
Described memory module is for store program code, and temporary every test result and testing setup value.Controller is for loading and executive routine code, and execution one test jobs; Controller after receiving test result, writes memory module by test result.Control pin position assembly at least comprises an electric power input node and standby voltage input node, is connected to controller.Electric power input node is used for receiving electric power input, and to drive test circuit, standby voltage input node is connected in standby power input end, makes controller differentiate whether circuit board under test is off-mode.Detecting pin position assembly at least comprises a leakage current voltage pin position, is connected in standby power input end; Controller sees through leakage current voltage pin position and judges whether circuit board under test is tested by leakage current under off-mode, and produces a leakage current warning.
Described test circuit can sequentially supply electrical testing and leakage current test to circuit board under test, and the function that can further see through extra pin and test loaded tool expands, and the voltage that further measures battery measures and the curved test of plate, and the required test jobs of circuit board is concentrated on to single platform, and the every test data of quick collection.Therefore, test macro of the present invention has been simplified and has been completed the needed platform of every test, and has simplified manpower.
The present invention further provides a kind of for electrical testing and drain current test method, for testing the leakage current of a circuit board under test.Circuit board under test at least comprises a bios program code storage element, a BIOS setting value buffer unit, a battery, a primary function circuit and a standby power input end, and standby power input end is used for obtaining a stand-by electric.
Described drain current test method comprises: place circuit board under test in a test loaded tool; Provide a direct current power to circuit board under test, so that circuit board under test is supplied to electrical testing, and whether normal, and judge whether circuit board under test can correctly work if using the function sequential after start of circuit board under test; The direct current power of interruption to circuit under test Plate supplying, shuts down circuit board under test; See through a leakage current voltage pin position and obtain the magnitude of voltage of the leakage current of circuit board under test; And according to magnitude of voltage, judge whether circuit board under test can produce leakage current under off-mode.
Effect of the present invention is, sees through above-mentioned test macro and drain current test method, can drive circuit board under test automatically to carry out switching on and shutting down test, then by test macro, automatically tests leakage current, and test result is write in memory module.See through the record in memory module is captured, for example, by controller, it is further sent to backstage, batch record and to analyze confession electrical test results and the leakage current of a plurality of circuit board under test, test, and need be manually to judge one by one.In addition, see through the rewriting of program code, and the configuration of change detecting pin position assembly, this test macro changes rapidly its tested object, and other defect that can further test circuit board under test, such as the terminal voltage of battery of BIOS, the plate flexibility of circuit board under test etc.See through the arrangement of single test macro and testing sequence, the present invention can sequentially complete for electrical testing, leakage current measurement, the terminal voltage of battery, the work such as plate flexibility of circuit board under test in single platform, thereby reduces the required manpower of testing circuit board.
About feature of the present invention, implementation and effect, hereby coordinate graphicly as most preferred embodiment, to be described in detail as follows.
[accompanying drawing explanation]
Below in conjunction with drawings and embodiments, the present invention is further detailed explanation.
Fig. 1 is the system block diagrams of the disclosed test macro for testing circuit board of the embodiment of the present invention.
Fig. 2 is in the embodiment of the present invention, the circuit block diagram of circuit board under test.
Fig. 3 is in the embodiment of the present invention, the circuit block diagram of test circuit.
Fig. 4 is in the embodiment of the present invention, the schematic diagram of control pin position assembly.
Fig. 5 is in the embodiment of the present invention, the schematic diagram of detecting pin position assembly.
Fig. 6 and Fig. 7 are the process flow diagram of drain current test method of the present invention.
The sequential schematic diagram that Fig. 8 and Fig. 9 figure are drain current test method of the present invention.
Figure 10 is in the embodiment of the present invention, the process flow diagram of the testing setup value of editor's machine.
Primary clustering symbol description:
100 test circuit 110 memory modules
120 controller 130 control pin position assemblies
131 electric power input node 132 standby voltage input nodes
133 lids are opened the curved signal input end of signal input end 134 plate
135 start signal input end 136a, 136b state signal output end
137a, 137b warning audio output terminal 140 detecting pin position assemblies
141 leakage current voltage pin position 142 cell voltages measure pin position
150 first data transmission interface 160 second data transmission interfaces
171 power input end mouth 172 power switch buttons
173 power light 181 replacement buttons
182 start button 190 mode selector switch
200 circuit board under test 210 Basic Input or Output System (BIOS)s
211BIOS program code storage unit 212BIOS setting value buffer unit
213 battery 220 primary function circuit
230 power supply module 310 lids are opened detector
Curved detector 300 test loaded tools of 320 plate
400 work platform STB standby power input ends
AC alternating electromotive force
[embodiment]
Referring to shown in Fig. 1, is the disclosed a kind of test macro for testing circuit board of the embodiment of the present invention, for supplying the voltage tester of battery and the voltage tester of leakage current of electrical testing, the curved test of plate, motherboard.Test macro comprises a test circuit 100, a test loaded tool 300 and a work platform 400.Test macro is for testing the leakage current of a circuit board under test 200.
As shown in Figure 2, circuit board under test 200 at least comprises a Basic Input or Output System (BIOS) 210(BIOS 210).BIOS 210 comprises a bios program code storage element 211, BIOS setting value buffer unit 212, a battery 213, a primary function circuit 220 and a standby power input end STB.Bios program code storage element 211 is for storing bios program code, BIOS setting value buffer unit 212 for keeping in every setting value of described circuit board under test 200, battery 213 is for supplying electric power to BIOS setting value buffer unit 212, to maintain the setting of BIOS setting value buffer unit 212.Standby power input end STB is for obtaining a stand-by electric from a power supply module 230, so that described circuit board under test 200 maintains holding state (Standby Mode), and can be waken up at any time and returns back to the state entering before holding state.
As shown in Figure 1, the accommodating circuit board under test 200 of test loaded tool 300, and set up and be electrically connected with circuit board under test 200, to supply electric power to circuit board under test 200.Aforesaid power supply module 230 is arranged in test loaded tool 300, and test loaded tool 300 can supply an alternating electromotive force AC to power supply module 230, makes power supply module 230 produce direct current power DC, transfers to described circuit board under test 200.
As shown in Figure 3, the test circuit 100 for testing circuit board comprises a memory module 110, a controller 120, a control pin position assembly 130, a detecting pin position assembly 140, a first data transmission interface 150, one second data transmission interface 160, a power input end mouth 171, a power switch button 172, a power light 173, a replacement button 181, a start button 182 and a mode selector switch 190.Aforesaid test circuit 100 can be integrated on single printed circuit board (PCB), also dispersibles in several printed circuit board (PCB)s.
As shown in Figure 3, memory module 110 is for store program code, for example firmware program.Memory module 110 temporary test result and testing setup value.Memory module 110 embodiments can be non-volatile formula memory modules (as flash memory), store aforesaid program code, and can after power-off, still continue to store testing setup value and test result.Another embodiment of memory module 110 be erasable can program read-only memory (EPROM) and the combination of random access memory (RAM); Wherein, EPROM is for store program code, and RAM is for temporary testing setup value and test result in the situation that test circuit 100 is switched on.
As shown in Figure 3, controller 120 is electrically connected at memory module 110.Controller 120 loads and executive routine code for Self-memory module 110, and carries out a test jobs.Controller 120, after receiving test result, writes in described memory module 110 test result for temporary.In addition controller 120 outputing test result with the communications protocol of an appointment.
Power input end mouth 171 is connected in controller 120, for inputting an electric power, makes test circuit 100 to have operation power by oneself, and does not need additional electric power.In a specific embodiment, power input end mouth 171 can be a USB port, but only there are 5V pin position and the activation of grounding leg position in USB port, make power input end mouth 171 can see through a transformer and obtain electric power, also can obtain electric power through work platform 400 or test loaded tool 300.Power switch button 172 is connected in controller 120, for generation of a trigger signals, uses startup or closes test circuit 100.In addition, power light 173 is electrically connected at controller 120, and when test circuit 100 running, controller 120 activation power lights 173, take and show that the power supply of test circuit 100 is unlatching.And the electric power of test circuit 100 is when close, controller 120 stops activation power light 173.
Again as shown in Figure 3, replacement button 181 is electrically connected at controller 120, for generation of a replacement signal, controller 120 is reset.
As shown in Figures 3 and 4, control pin position assembly 130 at least comprises an electric power input node 131 and standby voltage input node 132, is connected to controller 120.Electric power input node 131 is for receiving electric power input, and 5V Vcc electric power for example, to drive test circuit 100 to operate.Standby voltage input node 132 is connected in the standby power input end STB of circuit board under test 200 directly or indirectly, and controller 120 is connected in standby voltage input node 132; For example, by have or not (the 5V Standby voltage) of standby voltage, controller 120 judges that whether described power supply module 230 continues to transmit electric power to described circuit board under test 200, uses differentiation circuit board under test 200 and whether shuts down.
Whether, as shown in Fig. 1, Fig. 3 and Fig. 4, test loaded tool 300 more comprises a lid and opens detector 310, open, and when lid is opened, produce a lid and open signal for detecting the lid of test loaded tool 300.Control pin position assembly 130 more comprises a lid and opens signal input end 133, is electrically connected at controller 120.Lid is opened signal input end and for lid certainly, is opened detector 310 and receive described lid and open signal, and be sent to controller 120, use and make the lid of described controller 120 judgement test loaded tools 300 for opening or closure, and described controller 120 is only carried out test jobs when cap closure, that is described test jobs receives when lid is opened signal and interrupts in described controller 120.
As shown in Fig. 1, Fig. 3 and Fig. 4, test loaded tool 300 more comprises the curved detector 320 of a plate, and a laser inductor for example, for detecting the flexibility of circuit board under test 200.Control pin position assembly 130 more comprises the curved signal input end 134 of a plate, is connected in controller 120, for receiving flexibility from the curved detector 320 of plate, and is sent to controller 120.In addition, more set a flexibility threshold in controller 120, the described controller 120 described flexibility of comparison and described crooked thresholds, use and judge that whether described circuit board under test is crooked.
As shown in Figures 3 and 4, control pin position assembly 130 more comprises a startup signal input end 135, for receiving a startup signal; Described startup signal is inputted by outside, such as being external in, start the button of signal input end 135, work platform 400, test loaded tool 300 etc., and described controller 120 is connected in and starts signal input end 135, for receiving described startup signal, and starts to carry out test jobs.In addition, start signal and also can be produced by start button 182, directly send controller 120 to.
In addition, as shown in Figures 3 and 4, control pin position assembly 130 more comprises one group of state signal output end 136a, 136b and one group of warning audio output terminal 137a, 137b.
State signal output end 136a, 136b is connected in controller 120, and is connected in one group of cresset; Controller 120 sees through state signal output end 136a, and 136b output state signal is used and controlled each cresset light and shade variation, to show different test results.Described cresset also can be built-in cresset, is directly electrically connected at controller 120.
Warning audio output terminal 137a, 137b is connected in controller 120, and is connected in a loudspeaker; Controller 120 sees through state signal output end 136a, and 136b exports alerting, uses control loudspeaker and sends caution sound.Described cresset also can be built-in loudspeaker, is directly electrically connected at controller 120.
As shown in Figures 1 and 5, detecting pin position assembly 140 is connected in controller 120, and detecting pin position assembly 140 at least comprises leakage current voltage pin position 141 and a cell voltage measures pin position 142.Leakage current voltage pin position 141 is connected in the standby power input end STB of circuit board under test 200; By leakage current voltage pin position 141, controller 120 judges whether described circuit board under test 200 can produce leakage current under off-mode, and according to magnitude of voltage, assesses the size of leakage current, thereby produces a leakage current warning.Cell voltage measures the battery 213 that pin position 142 is connected in BIOS 210, for obtaining the terminal voltage of battery 213, within judging for controller 120 whether the voltage of battery 213 drops on normal range.Detecting pin position assembly 140 more can comprise other detecting voltage pin position, for detecting other voltage, to obtain more circuit board 200 information.
As shown in Figures 1 and 3, first data transmission interface 150 is connected in controller 120, to connect described controller 120 to work platform 400.According to the communications protocol of first data transmission interface 150, COM port agreement for example, controller 120 is encoded test result, sees through first data transmission interface 150 and exports work platform 400 to.Work platform 400 is installed an interface software, for produce a message display interface in a display frame, uses and shows test results.
The second data transmission interface 160 is connected in controller 120, for connecting controller 120 to test loaded tool 300.The second data transmission interface 160, for transferring data to controller 120 by test loaded tool 300, transfers to work platform 400 by data by test loaded tool 300 to see through controller 120; Or, by controller 120, transfer data to test loaded tool 300, to see through controller 120, data are transferred to test loaded tool 300 by the platform 400 of working.
As shown in FIG. 6 and 7, based on aforementioned test circuit 100, the present invention proposes a kind of for electrical testing and drain current test method, and the step of described method is described as follows.
First, tester opens the lid of test loaded tool 300, and places circuit board under test 200 in test loaded tool 300, as shown in step Step 110.Now.Because lid is opened, lid is opened detector 310 generation one lids and is opened signal, is sent to controller 120, make controller 120 produce lid and open state signal, by state signal output end 136a, 136b transfers to cresset, make cresset demonstration lid open state, for example, with red, green light, glimmer alternately.Meanwhile, controller 120 also produces lid and opens prompting signal, and by warning audio output terminal 137a, 137b transfers to loudspeaker, to drive loudspeaker to produce lid, opens prompt tone, for example minor Be tri-sound.
Then, tester covers the lid of test loaded tool 300, as shown in step Step 120.Now, because cover closing, lid is opened the lid of detector 310 and is opened signal interruption, makes controller 120 produce to cover and closes state signal, and by state signal output end 136a, 136b transfers to cresset, makes cresset show the state of closing that covers, for example, with green light, continue shinny.
Then 300 pairs of power supply modules of test loaded tool 230 are supplied alternating electromotive force AC, to see through power supply module 230, provide DC electric power to circuit board under test 200, use circuit board under test 200 is supplied to electrical testing, to judge that circuit board under test 200 whether can normal operation, as shown in step Step 130.Now circuit board under test 200 continues to produce operational data, see through the second data transmission interface 160 and transfer to controller 120, controller 120 sees through first data transmission interface 150 transmission operation data again to the platform 400 of working, and for work platform 400, judges whether described circuit board under test 200 can normal operation.Now, controller 120 still continues to produce to cover to close state signal, drives cresset demonstration to cover the state of closing and for example with green light, continues shinny.
Then, circuit board under test 200 is shut down, the direct current power DC of 230 pairs of circuit board under test of power supply module, 200 supplies is interrupted, as shown in step Step 140.Now, controller 120 produces direct current power interruption status signal, drive cresset to show direct current power interruption status, for example with red, green light, glimmer alternately, simultaneously, controller 120 produces direct current power break warnings signal, drives loudspeaker to produce direct current power and interrupts prompt tone, and for example Be sound is continuous three seconds.
If, in step Step 140 judgement direct current power DC, interrupt, make circuit board under test 200 shutdown, controller 120 sees through lid again and opens detector 310, judges whether the lid of test loaded tool 300 is opened, as shown in step Step 160.
If in step Step 160, the lid of controller 120 judgement test loaded tools 300 is opened, controller 120 sends lid and opens alerting, to drive cresset to show, cover the state of opening, for example red, green cresset continues alternately flicker, controller 120 also drives loudspeaker to send lid to open warning audio, and continuous very brief Be sound for example, to point out tester by cap closure.
If in step Step 160, the cap closure of controller 120 judgement test loaded tools 300, controller 120 is waited for and is started signal, judges whether to receive startup signal.Start button 182 is pressed as user in the source that starts signal, or starts signal input end 135 and receive startup signal by outside.
If leakage current test crash, controller 120 sees through first data transmission interface 150 transmission leakage data to the platform 400 of working, for work platform 400, be sent to and produce line information integration system (SFIS, Shop Floor Information System), as shown in step Step 180, and be returned to step Step 140 to close direct current power DC.Meanwhile, controller 120 sends leakage current alerting, and to drive cresset to show leakage current warning, for example red cresset is lasting bright, and controller 120 also drives loudspeaker to send leakage current warning audio, and for example Be sound continues to send once, to warn tester.
If leakage current is tested successfully, the same first data transmission interface 150 transmission leakage data that see through of controller 120, to the platform 400 of working, are sent to SFIS for work platform 400, as shown in step Step 190.Meanwhile, controller 120 sends leakage current and tests successful signal, to drive cresset demonstration leakage current to test successfully, for example green cresset continues bright, controller 120 also drives loudspeaker to send leakage current to test successful audio, and very brief Be sound twice for example, to notify tester.See through the judgement flow process of Step 150, can guarantee that circuit board under test 200 is after the confession electrical testing of Step 130 to Step 140, can really interrupt supplying with the direct current example DC of circuit board under test 200, to carry out the test of leakage current and the terminal voltage of measurement battery 213.Therefore, for the test of electrical testing, leakage current and the terminal voltage of measurement battery 213, can be integrated in single platform, and not need to be divided into different platforms tests.
Tester's uncap, carries out the curved test of plate with the curved detector 320 of plate, to obtain flexibility, transfers to controller 120, uses for controller 120 and judges that whether the curved test of plate is successful, as shown in step Step 210.
In controller 120, establish a flexibility threshold.If flexibility is less than threshold, plate is curved test successfully in controller 120 judgement, and controller 120, through the curved test data of first data transmission interface 150 transmission board to the platform 400 of working, is sent to SFIS for the platform 400 of working, and finishes test jobs.Meanwhile, controller 120 sends the successful signal of the curved test of plate, and to drive, cresset display board is curved to be tested successfully, and for example red, green cresset continued alternately to glimmer after five seconds, long bright by green light; Controller 120 also drives loudspeaker to send the successful audio of the curved test of plate, and very brief Be sound twice for example, to notify tester.
If flexibility is greater than threshold, controller 120 judges test crashs; The same curved test data of first data transmission interface 150 transmission board that sees through of controller 120, to the platform 400 of working, is sent to SFIS for work platform 400, as shown in step Step 230.Meanwhile, controller 120 sends the curved test crash signal of plate, and to drive the curved test crash of cresset display board, for example red, green cresset continued alternately to glimmer after five seconds, long bright by red light; Controller 120 also drives loudspeaker to send the curved test crash audio of plate, for example long Be sound once, to notify tester.
Then controller 120 judges whether the curved testing time of plate surpasses a pre-determined number, for example 3 times, and as shown in step Step 240.If surpass pre-determined number, controller 120 finishes test jobs equally.If do not surpass pre-determined number, controller 120 is waited for the signal of resurveying, and as shown in Step 250, and after signal is resurveyed in reception, re-starts the curved test of plate.When signal is resurveyed in wait, controller 120 drives cresset prompting tester to press the button of resurveying to send the signal of resurveying, and for example red, green cresset continues alternately, and drives loudspeaker to send long serge sound one time three seconds, to notify tester.
Consult shown in Fig. 8 and Fig. 9, the whole detection sequential of drain current test method of the present invention is described as follows.
In first stage P1, be that the lid of test loaded tool 300 is shut, input AC electric power AC is to power supply module 230., circuit board under test 200 is started shooting meanwhile, make power supply module 230 produce direct current power DC and export circuit board under test 200 to.If now circuit board under test 200 can also operate by normal boot-strap, described circuit board under test 200 can produce data, and controller 120 drives cressets (as green light) to show the state of circuit board under test 200 normal operations.This one-phase is equivalent to step Step 130.
In subordinate phase P2, circuit board under test 200 is shut down, if normal shutdown now, although alternating electromotive force AC still inputs to power supply module 230, the direct current power DC of power supply module 230 is output as and closes.If direct current power DC exports interruption, make the normal shutdown of circuit board under test 200 surpass 10 seconds, controller 120 drives cresset to show that circuit board under test 200 can normal shutdown (for example green light).If direct current power DC output continues and does not interrupt surpassing 10 seconds, the shutdown programm mistake of circuit board under test 200, controller 120 drives cressets (for example red light) to show the wrong state of circuit board under test 200 shutdown.This one-phase is equivalent to step Step 140.
In phase III P3, confirm whether alternating electromotive force AC interrupts completely, and whether duplicate acknowledgment direct current power DC interrupts simultaneously.If alternating electromotive force AC and direct current power DC interrupt, controller 120 drives the alternately flicker of red cresset and green cresset, shows that circuit board under test 20 power-off operations complete.In addition, controller 120 more drives loudspeaker audio, for example, Be sound three seconds, the 200 power-off operations of prompting circuit board under test complete.This one-phase is equivalent to step Step 150 – Step 160.
In fourth stage P4, press start button 182 to send startup signal, make controller 120 start to see through the voltage that leakage current voltage pin position 141 measures leakage current, and measure with cell voltage the terminal voltage that pin position 142 measures battery 213.If the voltage of leakage current drops in permissible range, the leakage current state of circuit board under test 200 is normal, and controller 120 drives cresset demonstration leakage current to test successfully, for example, drive green light; If the voltage of leakage current drops on outside permissible range, controller 120 drives cresset to show leakage current test crash, for example moving when red.This one-phase is equivalent to step Step 170.First stage P1 completes for after electrical testing to phase III P3, direct current power DC that can guarantee the supply circuit board under test 200 interrupts, and sustainablely enter the measurement that fourth stage P4 carries out the terminal voltage of leakage current and battery 213, and judge whether the power management (start and shut-off function) of circuit board under test is normal.Therefore, supply the measurement of the terminal voltage of electrical testing, leakage current and battery 213 can be incorporated into single platform, and can be different because of power requirement, and need by different platforms, be tested respectively, the configuration of manpower reduced.
In five-stage P5, the lid of test loaded tool 300 is unlocked, for the curved state of curved detector 320 detecting board of plate.Similarly, if flexibility drops in permissible range, controller 120 drives curved the test successfully of cresset display board; If flexibility drops on outside permissible range, controller 120 drives the curved test crash of cresset display board.This one-phase is equivalent to step Step 210.
In the 6th stage P6, controller 120, by test result, comprises flexibility, leakage current voltage, transfers to work platform 400, then by work platform 400, is transferred to the database storage of SFIS.This one-phase is equivalent to step Step 220, Step 230.
As previously mentioned, work platform 400 is installed interface softwares, for showing every terms of information, shown in information can comprise the data transmission interface, Bao rate etc. of firmware version, update date, employing.In addition machine title that, also can display circuit board.Aforementioned machine title can manually be inputted, and also can see through memory module 110 and obtain.Work platform 400 is carried out after interface software, can see through first data transmission interface 150, test event is write to the memory module 110 of test circuit 100, or Self-memory module 110 reading out datas.
Interface software also can switch to an editing interface, uses the testing setup value of editor's machine.
Consult shown in Fig. 3, for the testing setup value of machine is not surprisingly changed, test circuit 100 more comprises a mode selector button, for test circuit 100 is switched on to measurement pattern and edit pattern.In measurement pattern, test circuit 100 is carried out test jobs.In edit pattern, controller 120 sees through first data transmission interface 150, the edit instruction that receiving workstation platform 400 sends, and the testing setup value of editor's machine.
As shown in figure 10, the process of the testing setup value of editor's machine is first opened the direct current power DC of test circuit 100 with power switch button 172, as shown in step Step 310.Then the mode selector switch 190 switch test circuit 100 of take are edit pattern, as shown in step Step 320.Work platform 400 starts and carries out interface software, and connects work platform 400 and test circuit 100 with first data transmission interface 150, as shown in step Step330 and step Step 340.Work platform 400 switches software interface to editing interface, edits the testing setup value of machine, for tester as shown in step Step 350 and step Step 360.Complete after editor, work platform 400 sends edit instruction, edited result is write to the memory module 110 of test circuit 100, as shown in step Step 370.Finally, see through editing interface and select machine, and set the detecting voltage pin position of enabling, complete setting, as shown in step Step 380 and step Step 390.
Claims (19)
1. the test macro for testing circuit board, for a circuit board under test is carried out to switching on and shutting down test, and test the leakage current of described circuit board under test, described circuit board under test at least comprises a bios program code storage element, a BIOS setting value buffer unit, a battery, a primary function circuit, a standby power input end and a power supply module, described standby power input end is used for obtaining a stand-by electric, and described power supply module is used for receiving an alternating electromotive force and produces a direct current power; Its characteristic is, described test macro comprises:
One test loaded tool, for accommodating described circuit board under test, and set up and be electrically connected with described circuit board under test, and described test loaded tool supply alternating electromotive force is to described power supply module, make described power supply module output direct current power, so that described circuit board under test is supplied to electrical testing, and produce operational data; And
One test circuit, comprises:
One memory module, for store program code, and temporary every test result and testing setup value;
One controller, for loading and executive routine code, and carries out a test jobs; Described controller after receiving test result, writes described memory module by test result; And described controller receives operational data, thereby judge the whether normal operation of described circuit board under test, and in for after electrical testing, described circuit board under test being shut down;
One control pin position assembly, at least comprises an electric power input node and standby voltage input node, is connected to described controller; Wherein, described electric power input node is used for receiving electric power input, and to drive described test circuit, described standby voltage input node is connected in described standby power input end, and whether make described controller differentiate described circuit board under test is off-mode;
One detecting pin position assembly, at least comprises a leakage current voltage pin position, is connected in described standby power input end; Described controller sees through described leakage current voltage pin position and judges whether described circuit board under test is tested by leakage current under off-mode, and produces a leakage current warning.
2. the test macro for testing circuit board according to claim 1, characteristic is, more comprises a work platform, and described test circuit more comprises a first data transmission interface, be connected in described controller, to connect described controller to described work platform; Wherein said controller is encoded test result, sees through described first data transmission interface and exports described work platform to, and described work platform is installed an interface software, for produce a message display interface in a display frame, uses and shows test results.
3. the test macro for testing circuit board according to claim 1, its characteristic is, described test circuit more comprises a mode selector button, for described test circuit is switched on to measurement pattern and edit pattern; Wherein, in described measurement pattern, described test circuit is carried out test jobs, and in described edit pattern, described controller receives the edit instruction that described work platform sends, and the testing setup value of editor's machine.
4. the test macro for testing circuit board according to claim 1, its characteristic is, described test circuit more comprises one second data transmission interface, be used for connecting controller to described test loaded tool, thereby transmission data, between described work platform and described measurement jig, are used and are judged the whether normal operation of described circuit board under test.
5. the test macro for testing circuit board according to claim 1, its characteristic is, described test circuit more comprises a power input end mouth and a power switch button, is connected in described controller; Described power input end mouth is used for inputting an electric power, makes described test circuit to have operation power by oneself; Described power switch button, for generation of a trigger signals, is used startup or closes described test circuit.
6. the test macro for testing circuit board according to claim 5, its characteristic is, described test circuit more comprises a power light, is connected in described controller, described controller when described test circuit running, power light described in activation.
7. the test macro for testing circuit board according to claim 1, its characteristic is, whether described test loaded tool more comprises a lid and opens detector, open, and described controller is only carried out test jobs when cap closure for detecting the lid of described test loaded tool.
8. the test macro for testing circuit board according to claim 1, its characteristic is, described test loaded tool more comprises the curved detector of a plate, for detecting the flexibility of described circuit board under test.
9. the test macro for testing circuit board according to claim 8, its characteristic is, sets a flexibility threshold in described controller, described controller comparison flexibility and described flexibility threshold are used and are judged the whether bending of described circuit board under test.
10. the test macro for testing circuit board according to claim 1, its characteristic is, described control pin position assembly more comprises one group of state signal output end, is connected in described controller, and described controller sees through state signal output end output state signal, to show different test results.
11. test macros for testing circuit board according to claim 1, its characteristic is, described control pin position assembly more comprises one group of warning audio output terminal, is connected in described controller, and described controller sees through state signal output end output alerting, uses and sends caution sound.
12. test macros for testing circuit board according to claim 1, its characteristic is, described detecting pin position assembly more comprises a cell voltage and measures pin position, for obtaining the terminal voltage of described battery, within judging for described controller whether the voltage of described battery drops on normal range.
13. 1 kinds of drain current test methods, for testing the leakage current of a circuit board under test, wherein said circuit board under test at least comprises a bios program code storage element, a BIOS setting value buffer unit, a battery, a primary function circuit, a standby power input end and a power supply module, described standby power input end is used for obtaining a stand-by electric, and described power supply module is used for receiving an alternating electromotive force and produces a direct current power; Its characteristic is, described drain current test method comprises:
Place described circuit board under test in a test loaded tool;
Described circuit board under test is started shooting, make described power supply module provide direct current power to described circuit board under test, so that described circuit board under test is supplied to electrical testing, and receive the running of described circuit board under test and produce operational data, to judge the whether normal operation of described circuit board under test;
Described circuit board under test is shut down, make described power supply module interrupt the direct current power to described circuit under test Plate supplying, described circuit board under test is shut down;
See through a leakage current voltage pin position and obtain the magnitude of voltage of the leakage current of described circuit board under test; And
According to magnitude of voltage, judge whether described circuit board under test can produce leakage current under off-mode.
14. drain current test methods as claimed in claim 13, its characteristic is, more comprises a step, whether the lid of detecting described test loaded tool is unlatching, and sends warning when lid is opened.
15. drain current test methods as claimed in claim 14, its characteristic is, more comprises a step, carries out the curved test of plate, to obtain the flexibility of described circuit board under test with the curved detector of a plate.
16. drain current test methods as claimed in claim 15, its characteristic is, more comprises:
An if flexibility threshold; And
When flexibility is less than flexibility threshold, plate is curved test successfully in judgement, and when flexibility is greater than flexibility threshold, judges the curved test crash of plate
17. drain current test methods as claimed in claim 14, its characteristic is, supplies the step of electrical testing to comprise the operational data being produced by circuit board under test judge whether described circuit board under test can normal operation to described circuit board under test.
18. drain current test methods as claimed in claim 15, its characteristic is, after each testing procedure, more comprises with cresset and shows test results.
19. drain current test methods as claimed in claim 15, its characteristic is, after each testing procedure, more comprises with audio prompting test result.
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| CN201210385083.1A CN103728547A (en) | 2012-10-12 | 2012-10-12 | Testing system used for testing circuit board and leakage current testing method |
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| CN201210385083.1A CN103728547A (en) | 2012-10-12 | 2012-10-12 | Testing system used for testing circuit board and leakage current testing method |
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| CN106797414A (en) * | 2015-03-11 | 2017-05-31 | 华为技术有限公司 | The leakage current detection circuit and terminal of a kind of terminal |
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| CN114487914A (en) * | 2022-04-13 | 2022-05-13 | 荣耀终端有限公司 | Electronic equipment and leakage current testing method |
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