CN206096409U - LED drive power supply testing arrangement - Google Patents
LED drive power supply testing arrangement Download PDFInfo
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- CN206096409U CN206096409U CN201621190568.5U CN201621190568U CN206096409U CN 206096409 U CN206096409 U CN 206096409U CN 201621190568 U CN201621190568 U CN 201621190568U CN 206096409 U CN206096409 U CN 206096409U
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- test device
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Abstract
The utility model discloses a LED drive power supply testing arrangement, including drive power supply interface, test processing unit and load module, drive power supply interface and load module all with the test processing unit electric connection, the load module includes the LED network, the LED network is established ties by a n LED lamp cluster and is constituteed, every LED lamp cluster is all parallelly connected with an electronic switch, electronic switch with test processing unit electric connection, electronic switch is used for control the access of LED lamp cluster, n is the positive integer. The utility model has the advantages of organize the LED network as the load module through 8421 coding principle, utilize electronic switch to switch the scale that inserts the load, simple structure, load switch progression is many, switches easily to realize, can reflect the LED stroboscopic, the power result of use of actual scene such as high cold -starting.
Description
Technical field
This utility model is related to LED drive power field, more particularly to LED drive power test device.
Background technology
At present, the application of LED is more and more extensive, and the power supply requirement amount driven for LED is also increasing, prescription
Paid attention to, it is very necessary when testing LED drive power.Currently, automaticity is higher, and LED is realized substantially
The automatization of driving power supply test device, but the conventional simulation load tested for LED drive power yet suffers from structure and answers
Miscellaneous, load switching series is limited, it is impossible to reflect LED stroboscopics, the problem of height startup temperature actual effect.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is that a kind of LED drive power that provides tests dress
Put, it can solve the fictitious load complex structure of existing conventional LED drive power test device, load switching series is limited, no
LED stroboscopics, the problem of height startup temperature actual effect can be reflected.
The purpose of this utility model employs the following technical solutions realization：
A kind of LED drive power test device, including driving power supply interface, test processes unit and load module, it is described
Driving power supply interface and load module are all electrically connected with test processes unit；The load module includes LED network, described
LED network is composed in series by n LED string, and each described LED string is in parallel with an electrical switch, the electrical switch with
The test processes unit is electrically connected with, and the electrical switch is used to control the access of the LED string, and n is positive integer.
Preferably, the LED network is connected by 4 LED strings, 4 LED strings respectively include 1,2,4,
8 LED lamp beads.
Preferably, the LED network is connected by 8 LED strings, 8 LED strings respectively include 1,2,4,
8,16,32,64,128 LED lamp beads.
Preferably, the load module also includes resistor network, and the resistor network is made up of m resistant series, each
The resistance is in parallel with an electrical switch, and the electrical switch is electrically connected with the test processes unit, the electronic cutting
The access for controlling the resistance is closed, m is positive integer.
Preferably, the resistor network includes 4 resistance, and 4 resistance is respectively x ohms, 2x ohms, 4x ohms,
8x ohms, x is positive number.
Preferably, the resistor network includes 8 resistance, and 8 resistance is respectively x ohms, 2x ohms, 4x ohms,
8x ohms, 16x ohms, 32x ohms, 64x ohms, 128x ohms, x is positive number.
Preferably, the LED drive power test device also includes host computer interface, for being connected with host computer.
Preferably, the LED drive power test device also includes host computer, and the host computer is connect by the host computer
Mouth is electrically connected with the test processes unit.
Preferably, the electrical switch is at least in IGCT, transistor, field effect transistor, controllable silicon, relay
Kind.
Preferably, the electrical switch is light-control electronic switch, it is possible to achieve load switching and the photoelectricity of load performance every
From.
Compared to existing technology, the beneficial effects of the utility model are：LED network is organized to be used as by 8421 coding principles
Load module, the scale for accessing load, simple structure are switched using electrical switch；Load switching series is more, and switching is easily achieved；
The power supply using effect of the actual scenes such as LED stroboscopics, height startup temperature can be reflected.
Description of the drawings
Fig. 1 is the structural representation of the LED drive power test device that this utility model embodiment one is provided.
Fig. 2 is the structural representation of test processes unit in Fig. 1.
Fig. 3 is the circuit diagram that module is loaded in Fig. 1.
Fig. 4 is the structural representation of the LED drive power test device that this utility model embodiment two is provided.
Fig. 5 is the circuit diagram that module is loaded in Fig. 4.
Specific embodiment
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of description, and in order to allow above and other purpose of the present utility model, feature
Can become apparent with advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Embodiment one
As shown in figure 1, LED drive power test device includes driving power supply interface 110, test processes unit 120 and bears
Module 130 is carried, driving power supply interface 110 and load module 130 are electrically connected with test processes unit 120.Wherein test processes
Unit 120 as shown in Fig. 2 including controller 121, input equipment 122, output device 123, measuring unit 124 and I/O port 125,
Input equipment 122, output device 123, measuring unit 124, I/O port 125 and controller 121 are electrically connected with.The He of input equipment 122
Output device 123 completes parameter input and measurement data output function；Measuring unit 124 and driving power supply interface 110 or load
The seam of module 130 connects to obtain the output characteristics (such as voltage, current waveform) of driving power supply (not shown).
Load module 130 is as shown in figure 3, including LED network 131.In the present embodiment, LED network 131 is by 4 LEDs
String Q1-Q4 is composed in series, and LED string Q1-Q4 includes respectively 1,2,4,8 LED lamp beads；4 LED strings are respectively with one
Electrical switch J1-J4 is in parallel.Electrical switch J1-J4 is controlled by the I/O port 125 of test processes unit 120, i.e. electrical switch J1-J4
It is electrically connected with test processes unit 120, electrical switch J1-J4 is respectively used to control the access of LED string Q1-Q4.
When I/O port 125 all closes electrical switch J1-J4, LED string Q1-Q4 is shorted；When only J1 is opened,
LED string Q1 is a LED lamp bead equivalent to LED network 131 effectively；When only J2 is opened, LED string Q2 is effective, equivalent to
LED network 131 is 2 LED lamp beads；When only J1 and J2 is opened, LED string Q1 and Q2 are 3 equivalent to LED network 131 effectively
Individual LED lamp bead, the rest may be inferred, i.e., configured by 8421 coded systems.Certainly LED network 131 is connected to obtain LED string number
Amount can be arbitrary integer n (n is positive integer), and n LED string is configured by 8421 coded systems.Another embodiment
In, n is 8, i.e., LED network 131 is connected by 8 LED strings, 8 LED strings include respectively 1,2,4,8,16,
32,64,128 LED lamp beads.
Electrical switch J1-J4 can be for IGCT, transistor, field effect transistor, controllable silicon, relay at least one
Kind.Preferably, electrical switch J1-J4 is light-control electronic switch, can increase measuring accuracy with electrical isolation.
Organize LED network 131 to be used as load module 130 by 8421 coding principles, connect using electrical switch J1-J4 switchings
Enter the scale of load, simple structure；Load switching series is more, and switching is easily achieved；LED stroboscopics, height startup temperature can be reflected
Deng the power supply using effect of actual scene.
Embodiment two
LED drive power test device as shown in Figure 4, including driving power supply interface 210, the and of test processes unit 220
Load module 230, also including host computer interface 240, for being connected to realize control and data acquisition work(with outside host computer
Energy.Further, host computer 250 is may also include, host computer 250 is electrically connected by host computer interface 240 with test processes unit 220
Connect.Increase PC programmable functions, in being conveniently integrated into ATE system, to adapt to more test applications.
In the present embodiment, the such as Fig. 5 of module 230, including LED network 231 are loaded, LED network 231 is by 4 LED strings
Q1-Q4 is composed in series, and LED string Q1-Q4 includes respectively 1,2,4,8 LED lamp beads；4 LED strings are electric with one respectively
Switch J1-J4 is in parallel for son.Load module 230 also includes resistor network 232.Resistor network 232 is connected by 8 resistance R1-R8, electricity
Resistance R1-R8 is respectively x ohms, 2x ohms, 4x ohms, 8x ohms, 16x ohms, 32x ohms, 64x ohms, 128x ohms, wherein
X is positive number.Resistance R1-R8 is in parallel with an electrical switch K1-K8 respectively.Electrical switch K1-K8 by test processes unit 220 IO
Mouth (not shown) control, i.e. electrical switch K1-K8 is electrically connected with test processes unit 220, and electrical switch K1-K8 is respectively used to
The access of control resistance R1-R8.For example, during x=1k, resistor network 232 can realize the switching of ohm from 0 to 255k, step-length
For 1k ohms.When x is 0.5, resistor network 232 can realize the switching from 0 to 127.5 ohm.
Certainly resistor network 232 connect resistance quantity can be arbitrary integer m (m is positive integer), m resistance
Size is configured by 8421 coded systems.In another embodiment, m is 4, i.e. resistor network 232 by 4 resistant series, 4
Resistance is configured using 8421 coded systems, i.e., 4 resistance are respectively x ohms, 2x ohms, and (x is for just for 4x ohms, 8x ohms
Number).
Further by 8421 coding principle tissue resistance networks 232 as the part for loading module 230, using electronics
Switch switching accesses the scale of ohmic load, simple structure；Load switching series is more, and switching is easily achieved.
For a person skilled in the art, technical scheme that can be as described above and design, make other each
Plant corresponding change and deform, and all these changes and deforms the guarantor that should all belong to this utility model claim
Within the scope of shield.
Claims (10)
1. a kind of LED drive power test device, including driving power supply interface, test processes unit and load module, the drive
Galvanic electricity source interface and load module are all electrically connected with test processes unit, it is characterised in that：The load module includes LED nets
Network, the LED network is composed in series by n LED string, and each described LED string is in parallel with an electrical switch, the electronics
Switch is electrically connected with the test processes unit, and the electrical switch is used to control the access of the LED string, and n is just whole
Number.
2. LED drive power test device as claimed in claim 1, it is characterised in that：The LED network is by 4 LED strings
Series connection, 4 LED strings include respectively 1,2,4,8 LED lamp beads.
3. LED drive power test device as claimed in claim 1, it is characterised in that：The LED network is by 8 LED strings
Series connection, 8 LED strings include respectively 1,2,4,8,16,32,64,128 LED lamp beads.
4. LED drive power test device as claimed in claim 1, it is characterised in that：The load module also includes resistance
Network, the resistor network is made up of m resistant series, and each described resistance is in parallel with an electrical switch, the electronic cutting
Close and be electrically connected with the test processes unit, the electrical switch is used to control the access of the resistance, and m is positive integer.
5. LED drive power test device as claimed in claim 4, it is characterised in that：The resistor network is by 4 resistance strings
Connection, 4 resistance is respectively x ohms, 2x ohms, 4x ohms, 8x ohms, and x is positive number.
6. LED drive power test device as claimed in claim 4, it is characterised in that：The resistor network is by 8 resistance strings
Connection, 8 resistance is respectively x ohms, 2x ohms, 4x ohms, 8x ohms, 16x ohms, 32x ohms, 64x ohms, 128x Europe
Nurse, x is positive number.
7. the LED drive power test device as any one of claim 1-6, it is characterised in that：Also include host computer
Interface, for being connected with host computer.
8. LED drive power test device as claimed in claim 7, it is characterised in that：Also include host computer, the host computer
It is electrically connected with the test processes unit by the host computer interface.
9. the LED drive power test device as any one of claim 1-6, it is characterised in that：The electrical switch
For at least one in IGCT, transistor, field effect transistor, controllable silicon, relay.
10. the LED drive power test device as any one of claim 1-6, it is characterised in that：The electrical switch
For light-control electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621190568.5U CN206096409U (en) | 2016-10-28 | 2016-10-28 | LED drive power supply testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621190568.5U CN206096409U (en) | 2016-10-28 | 2016-10-28 | LED drive power supply testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206096409U true CN206096409U (en) | 2017-04-12 |
Family
ID=58486675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621190568.5U Active CN206096409U (en) | 2016-10-28 | 2016-10-28 | LED drive power supply testing arrangement |
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| CN (1) | CN206096409U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064824A (en) * | 2017-06-08 | 2017-08-18 | 常东记 | A kind of load blocks tested for LED drive power |
| CN109085453A (en) * | 2018-09-26 | 2018-12-25 | 深圳市中州远光照明科技有限公司 | A kind of fault detection means and its method of LED power supply unit |
| CN110286335A (en) * | 2019-06-26 | 2019-09-27 | 深圳创维－Rgb电子有限公司 | A kind of test aging circuit of power supply, method and device |
-
2016
- 2016-10-28 CN CN201621190568.5U patent/CN206096409U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064824A (en) * | 2017-06-08 | 2017-08-18 | 常东记 | A kind of load blocks tested for LED drive power |
| CN109085453A (en) * | 2018-09-26 | 2018-12-25 | 深圳市中州远光照明科技有限公司 | A kind of fault detection means and its method of LED power supply unit |
| CN109085453B (en) * | 2018-09-26 | 2020-09-15 | 深圳市中州远光照明科技有限公司 | Fault detection device and method of LED power supply device |
| CN110286335A (en) * | 2019-06-26 | 2019-09-27 | 深圳创维－Rgb电子有限公司 | A kind of test aging circuit of power supply, method and device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong province Shenzhen city Baoan District street Xixiang Development Zone guwu Indus Taihua Industrial Park building 14A building 4-5 Patentee after: Polytron Technologies Inc, Shenzhen Address before: 518000 Guangdong province Shenzhen city Baoan District street Xixiang Development Zone guwu Indus Taihua Industrial Park building 14A building 4-5 Patentee before: Shenzhen Ledfriend Optoelectronics Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |