CN104267358A - Automatic testing equipment for power supply - Google Patents
Automatic testing equipment for power supply Download PDFInfo
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- CN104267358A CN104267358A CN201410529826.7A CN201410529826A CN104267358A CN 104267358 A CN104267358 A CN 104267358A CN 201410529826 A CN201410529826 A CN 201410529826A CN 104267358 A CN104267358 A CN 104267358A
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Abstract
Automatic testing equipment for a power supply comprises a controller and a test result cue circuit. The controller is used for outputting a test signal to an electronic load when detecting a power detection signal of the power supply to be tested so that the electronic load can start a corresponding test pattern for testing according to the test signal. The controller is also used for driving the test result cue circuit to send out a cue signal when detecting a test result signal of the electronic load. According to the automatic testing equipment, an operator does not need to select test patterns of the electronic load manually one by one, and the controller outputs the test signal instead, so that the electronic load starts the corresponding test pattern according to the test signal, and whether a product is qualified or not is prompted automatically through the test result cue circuit; the whole testing process does not require involvement of the operator, so that the testing is objective and accurate, the testing efficiency is high, and the testing effect is good.
Description
Technical field
The present invention relates to a kind of power supply automatic detecting equipment.
Background technology
Electronic load accurately can detect load voltage, accurate adjustment load current, simultaneously can realize fictitious load short circuit, and the perception of fictitious load resistive and capacitive and capacitive load currents rise time, it is one of necessary equipment of Switching Power Supply test.
At present, need in power supply test to select the various modes of electronic load to test, generally by operator's preference pattern one by one, then judge that whether product is qualified according to the test result of electronic load, make the work load of operator larger.For unskilled operator, its testing efficiency is low, even there will be the misoperation of leaking and selecting test pattern, thus brings harmful effect to product test.From the above, the test result of current power supply test is subject to the interference of human factor comparatively greatly, affects testing efficiency and effect.
Summary of the invention
For the deficiencies in the prior art, object of the present invention is intended to provide a kind of power supply automatic detecting equipment solved the problems of the technologies described above.
For achieving the above object, the present invention adopts following technical scheme:
A kind of power supply automatic detecting equipment, it comprises controller and test result cue circuit;
This controller is used for when the power detection signal of a power supply to be tested being detected, export test signal to electronic load, start corresponding test pattern to make this electronic load according to this test signal to test, and drive when the test result signal of electronic load being detected this test result cue circuit to send cue.
Preferably, this controller comprises at least two test output pins, for exporting test signal successively; This electronic load is used for starting corresponding test pattern according to the test signal when last test output pin to be tested, and exports corresponding test result signal; When current test result signal is abnormal, this controller stops exporting test signal, and drives test result cue circuit to send the underproof cue of prompting product; When current test result signal is normal, next test output pin of this controller exports another test signal, and this electronic load starts corresponding test pattern according to this another test signal to be tested, and exports another test result signal; When another test result signal is abnormal, this controller stops exporting test signal, and drives test result cue circuit to send the underproof cue of prompting product; When another test result signal is normal, this controller drives test result cue circuit to send the qualified cue of prompting product.
Preferably, the power detection signal input pin of controller is electrically connected the signal end of power supply to be tested, the output terminal of the electrical electronic load of test result signal input pin of controller, the first test output pin of controller is electrically connected the first mode end of electronic load to the 5th pattern end respectively to the 5th test output pin; The driving pin of this controller connects this test result cue circuit.
Preferably, this power supply automatic detecting equipment also comprises the first optocoupler to the 6th optocoupler, and the input end of the first optocoupler connects the output terminal of this electronic load, the test result signal input pin of the output terminal connection control device of the first optocoupler; Second optocoupler connects the first test output pin of this controller to the 5th test output pin respectively to the input end of the 6th optocoupler, and the second optocoupler connects the first mode end of this electronic load to the 5th pattern end respectively to the output terminal of the 6th optocoupler.
Preferably, this power supply automatic detecting equipment also comprises the first resistance to the 6th resistance, and the first resistance is connected between the output terminal of electronic load and this first optocoupler; This second resistance connects the input end of this second optocoupler to the 6th optocoupler respectively to one end of the 6th resistance, and electricity second resistance connects the first test output pin of this controller to the 5th test output pin respectively to the other end of the 6th resistance.
Preferably, this test result cue circuit comprises the first light emitting diode, the second light emitting diode, triode, hummer, the first resistance to the 5th resistance;
The negative pole of the first light emitting diode connects first of this controller and drives pin, and the positive pole of the first light emitting diode connects a direct supply by the 5th resistance; Second driving pin of the negative pole connection control device of the second light emitting diode, the positive pole of the second light emitting diode connects this direct supply by the 4th resistance; The base stage of triode drives pin by the 3rd of the first resistance connection control device, also by the second resistance eutral grounding, the grounded emitter of triode, the collector of triode is connected this direct supply by this hummer with the 3rd resistance successively, and wherein this first light emitting diode is not identical with the color of the second light emitting diode.
Beneficial effect of the present invention at least comprises:
In the present invention, operating personnel are without the need to manually selecting the test pattern of electronic load one by one, but export test signal by controller, corresponding test pattern is started according to this test signal to make electronic load, and automatically by test result cue circuit prompting product acceptance or rejection, whole test process participates in without the need to people, objective and accurate, the high and good test effect of testing efficiency.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the better embodiment of power supply automatic detecting equipment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described further:
Refer to Fig. 1, the present invention relates to a kind of power supply automatic detecting equipment, its better embodiment comprises controller U2 and test result cue circuit 10.
This controller U1 is used for when the power detection signal of a power supply (not shown) to be tested being detected, export test signal to electronic load U9, start corresponding test pattern to make electronic load U9 according to this test signal to test, and drive this test result cue circuit 10 to send cue when the test result signal of electronic load U9 being detected, this cue can be light or/and the mode of sound, to point out product whether qualified.
So, in the present invention, operating personnel are without the need to manually selecting the test pattern of electronic load U9 one by one, but export test signal by controller U2, corresponding test pattern is started according to this test signal to make electronic load U9, and automatically point out product acceptance or rejection by test result cue circuit 10, whole test process participates in without the need to people, objective and accurate, the high and good test effect of testing efficiency.
Preferably, this controller comprises at least two test output pins; For exporting test signal successively, this electronic load U9 is used for starting corresponding test pattern according to the test signal when last test output pin to be tested, and exports corresponding test result signal; When current test result signal is abnormal, this controller stops exporting test signal, and drives test result cue circuit 10 to send the underproof cue of prompting product; When current test result signal is normal, next test output pin of this controller exports another test signal, and this electronic load U9 starts corresponding test pattern according to this another test signal to be tested, and exports another test result signal; When another test result signal is abnormal, this controller stops exporting test signal, and drives test result cue circuit 10 to send the underproof cue of prompting product; When another test result signal is normal, this controller drives test result cue circuit 10 to send the qualified cue of prompting product.
The controller of foregoing invention automatically sequentially controls electronic load U9 and starts different test patterns, and just enters next test pattern when current test result is normal, otherwise terminate test, prompting product is defective, thus improves testing efficiency.
Each test output pin correspondence above-mentioned controls a kind of test pattern of electronic load U9, and the quantity of this test output pin is not limit, and can be 2 or multiple, needs and determine according to the test of reality.
In the present embodiment, the power detection signal input pin P0.4 of this controller U1 is electrically connected the signal end IN of this power supply to be tested, the first test output pin P2.1 of the output terminal NG of electrical this electronic load U9 of test result signal input pin P2.0 of this controller U1, this controller U1 is electrically connected the first mode end MODE1 of electronic load U9 to the 5th pattern end MODE5 respectively to the 5th test output pin P2.5.The driving pin of this controller U1 connects this test result cue circuit 10.
Preferably, this power supply automatic detecting equipment also comprises the first optocoupler U2 to the 6th optocoupler U7, the input end of this first optocoupler U2 connects the output terminal NG of this electronic load U9, the test result signal input pin P2.0 of the output terminal connection control device U1 of this first optocoupler U2; The input end of this second optocoupler U3 to the 6th optocoupler U7 connects the first test output pin P2.1 of this controller respectively to the 5th test output pin P2.5, and the output terminal of this second optocoupler U3 to the 6th optocoupler U7 connects the first mode end MODE1 of this electronic load U9 respectively to the 5th pattern end MODE5.
Above-mentioned first optocoupler U2 is conducive to the 6th optocoupler U7 the antijamming capability improving this power supply automatic detecting equipment.
This power supply automatic detecting equipment also comprises resistance R1 and resistance R11 to resistance R15, and resistance R1 is connected between the output terminal NG of electronic load and this first optocoupler U2.One end of this resistance R11 to resistance R15 connects the input end of this second optocoupler U3 to the 6th optocoupler U7 respectively, and the other end of this resistance R11 to resistance R15 connects the first test output pin P2.1 of this controller respectively to the 5th test output pin P2.5.
In the present embodiment, this test result cue circuit 10 comprises the first light emitting diode D1, the second light emitting diode D2, triode Q1, hummer SP, resistance R2 to resistance R6.
The negative pole of this first light emitting diode D1 connects first of this controller and drives pin P0.6, and the positive pole of this first light emitting diode D1 connects a direct supply VCC by resistance R6; The negative pole of the second light emitting diode D2 connects second of this controller and drives pin P0.7, and the positive pole of this second light emitting diode D2 connects this direct supply VCC by resistance R5; The base stage of triode Q1 connects the 3rd driving pin P2.6 of this controller by resistance R2, also by resistance R3 ground connection, the grounded emitter of this triode Q1, the collector of this triode Q1 is connected this direct supply VCC by this hummer SP with this resistance R4 successively, wherein this first light emitting diode D1 is not identical with the color of the second light emitting diode D2, such as, the color of the first light emitting diode D1 and the second light emitting diode D2 is respectively green and red.
Illustrate below and the principle of work of the present embodiment be described:
When the power detection signal input pin P0.4 of controller U1 detect one be greater than voltage signal (i.e. the above-mentioned power detection signal) of 3.0V time, the first test output pin P2.1 of this controller U1 exports the pulse signal (i.e. above-mentioned test signal) of the 5.0V voltage continuing 50 milliseconds, the first test pattern is entered to make electronic load U9, if the test result signal input pin P2.0 of this controller U1 detects low level signal (i.e. normal test result signal), then next test output pin output pulse signal of this controller U1, to carry out next pattern test, until detected all patterns, if all patterns all detect normally, this controller drives this first light emitting diode D1 luminous, to point out product qualified, if the test result signal input pin P2.0 of this controller U1 detects high level signal (namely abnormal test result signal), then this controller U1 stops exporting test signal, and drive this second light emitting diode D2 luminous, drive hummer SP to sound, to point out product defective simultaneously.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the claims in the present invention.
Claims (6)
1. a power supply automatic detecting equipment, is characterized in that: it comprises controller and test result cue circuit;
This controller is used for when the power detection signal of a power supply to be tested being detected, export test signal to electronic load, start corresponding test pattern to make this electronic load according to this test signal to test, and drive when the test result signal of electronic load being detected this test result cue circuit to send cue.
2. power supply automatic detecting equipment as claimed in claim 1, is characterized in that: this controller comprises at least two test output pins, for exporting test signal successively; This electronic load is used for starting corresponding test pattern according to the test signal when last test output pin to be tested, and exports corresponding test result signal; When current test result signal is abnormal, this controller stops exporting test signal, and drives test result cue circuit to send the underproof cue of prompting product; When current test result signal is normal, next test output pin of this controller exports another test signal, and this electronic load starts corresponding test pattern according to this another test signal to be tested, and exports another test result signal; When another test result signal is abnormal, this controller stops exporting test signal, and drives test result cue circuit to send the underproof cue of prompting product; When another test result signal is normal, this controller drives test result cue circuit to send the qualified cue of prompting product.
3. power supply automatic detecting equipment as claimed in claim 1 or 2, it is characterized in that: the power detection signal input pin of controller is electrically connected the signal end of power supply to be tested, the output terminal of the electrical electronic load of test result signal input pin of controller, the first test output pin of controller is electrically connected the first mode end of electronic load to the 5th pattern end respectively to the 5th test output pin; The driving pin of this controller connects this test result cue circuit.
4. power supply automatic detecting equipment as claimed in claim 3, it is characterized in that: this power supply automatic detecting equipment also comprises the first optocoupler to the 6th optocoupler, the input end of the first optocoupler connects the output terminal of this electronic load, the test result signal input pin of the output terminal connection control device of the first optocoupler; Second optocoupler connects the first test output pin of this controller to the 5th test output pin respectively to the input end of the 6th optocoupler, and the second optocoupler connects the first mode end of this electronic load to the 5th pattern end respectively to the output terminal of the 6th optocoupler.
5. power supply automatic detecting equipment as claimed in claim 4, it is characterized in that: this power supply automatic detecting equipment also comprises the first resistance to the 6th resistance, the first resistance is connected between the output terminal of electronic load and this first optocoupler; This second resistance connects the input end of this second optocoupler to the 6th optocoupler respectively to one end of the 6th resistance, and electricity second resistance connects the first test output pin of this controller to the 5th test output pin respectively to the other end of the 6th resistance.
6. the power supply automatic detecting equipment according to any one of Claims 1-4, is characterized in that: this test result cue circuit comprises the first light emitting diode, the second light emitting diode, triode, hummer, the first resistance to the 5th resistance;
The negative pole of the first light emitting diode connects first of this controller and drives pin, and the positive pole of the first light emitting diode connects a direct supply by the 5th resistance; Second driving pin of the negative pole connection control device of the second light emitting diode, the positive pole of the second light emitting diode connects this direct supply by the 4th resistance; The base stage of triode drives pin by the 3rd of the first resistance connection control device, also by the second resistance eutral grounding, the grounded emitter of triode, the collector of triode is connected this direct supply by this hummer with the 3rd resistance successively, and wherein this first light emitting diode is not identical with the color of the second light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529826.7A CN104267358B (en) | 2014-10-09 | 2014-10-09 | Power supply automatic detecting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529826.7A CN104267358B (en) | 2014-10-09 | 2014-10-09 | Power supply automatic detecting equipment |
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| CN104267358A true CN104267358A (en) | 2015-01-07 |
| CN104267358B CN104267358B (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410529826.7A Expired - Fee Related CN104267358B (en) | 2014-10-09 | 2014-10-09 | Power supply automatic detecting equipment |
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| CN104267358B (en) | 2017-07-07 |
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Effective date of registration: 20160829 Address after: 425000 Industrial Road, Hexi Industrial Zone, Lingling Industrial Zone, Lingling District, Yongzhou, Hunan Applicant after: Hunan tech-power Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Baoan District Fuyong street community baishixia Longwangmiao Industrial Zone sixteenth, nineteenth Applicant before: Songshun Electronic (Shenzhen) Co., Ltd. |
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Granted publication date: 20170707 Termination date: 20181009 |