CN202721885U - LED drive power aging test load - Google Patents

LED drive power aging test load Download PDF

Info

Publication number
CN202721885U
CN202721885U CN 201220263801 CN201220263801U CN202721885U CN 202721885 U CN202721885 U CN 202721885U CN 201220263801 CN201220263801 CN 201220263801 CN 201220263801 U CN201220263801 U CN 201220263801U CN 202721885 U CN202721885 U CN 202721885U
Authority
CN
China
Prior art keywords
anode
spliced eye
insertion hole
driving power
negative electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220263801
Other languages
Chinese (zh)
Inventor
梁广发
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sampo Electric Dongguan Co Ltd
Original Assignee
Sampo Electric Dongguan Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sampo Electric Dongguan Co Ltd filed Critical Sampo Electric Dongguan Co Ltd
Priority to CN 201220263801 priority Critical patent/CN202721885U/en
Application granted granted Critical
Publication of CN202721885U publication Critical patent/CN202721885U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Led Devices (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)

Abstract

The utility model discloses an LED drive power aging test load which comprises a connector socket which is provided with at least two groups of insertion holes. Each group of insertion holes comprises corresponding cathode insertion hole and anode insertion hole. Adjacent cathode insertion holes are in electric connection. A diode is connected between adjacent anode insertion holes. All diodes are in series connection. In one group of insertion holes, a connector plug board is arranged between the cathode insertion hole and the anode insertion hole to enable the cathode insertion hole and the anode insertion hole in electric connection. The cathode insertion hole is connected with an LED drive power aging test circuit. A connection circuit between a pair of adjacent anode insertion holes is connected with the LED drive power aging test circuit. According to output voltage of a power supply, the number of the diodes is determined, then an plug position of the connector plug board is adjusted to change the number of the diodes which are connected to the circuit, the working state of an LED is accurately simulated, and the cost of the circuit is reduced.

Description

The load of LED driving power burn-in test
Technical field
The utility model relates to a kind of dummy load, relates in particular to a kind of LED dummy load for test LED driving power aging performance.
Background technology
LED is widely used in illumination and field of backlights, its driving power is one of core component of product, the quality of driving power is the key of product success or failure, the LED driving power all needs to do burn-in test to guarantee product quality when batch production, at present, the method for LED driving power burn-in test has two kinds: a kind of is as load aging with client's light fixture; The 2nd, adopt dummy load, such as cement resistor; Client's light fixture is very high as the aged load cost, and finished product can't be sold again after aging, and cost is very large, general enterprise is difficult to bear, the cement resistor low price, but owing to be pure resistive, can't simulate the real characteristic of LED work, test result is not accurate enough.
The utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to, and the load of a kind of LED driving power burn-in test is provided, and it can accurately monitor the ageing state of LED driving power, accurately simulates the operating state of LED.
For solving the problems of the technologies described above, the technical solution of the utility model is: the load of a kind of LED driving power burn-in test, comprise connector body, described connector body is provided with negative electrode spliced eye and at least two anode spliced eyes, be connected with diode between the adjacent described anode spliced eye, all described diode series connection; Also comprise the selection control that an end is connected with described negative electrode spliced eye and the other end is connected with one of them described anode spliced eye.
As a kind of preferred technical scheme, described connector body is provided with the negative electrode spliced eye consistent with described anode spliced eye number, and adjacent described negative electrode spliced eye is electrically connected.
As a kind of preferred technical scheme, described selection control connects plate for conduction.
As a kind of preferred technical scheme, described connector body is provided with 30 anode spliced eyes.
As a kind of preferred technical scheme, described diode is fast diode.
Owing to adopted technique scheme, the load of a kind of LED driving power burn-in test comprises connector body, and described connector body is provided with negative electrode spliced eye and at least two anode spliced eyes, be connected with diode between the adjacent described anode spliced eye, all described diode series connection; Also comprise the selection control that an end is connected with described negative electrode spliced eye and the other end is connected with one of them described anode spliced eye; Determine a number of diode according to the output voltage of power supply, then the link position of selection control and anode spliced eye changes the number of the diode of place in circuit, accurately simulates the operating state of LED, greatly reduces circuit cost.
Description of drawings
Accompanying drawing 1 is the circuit theory diagrams of the utility model embodiment;
Among the figure: the 1-connector body; 21-negative electrode spliced eye; 22-anode spliced eye.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.In the following detailed description, only by the mode of explanation some example embodiment of the present utility model has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that does not depart from spirit and scope of the present utility model, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used for the protection range of restriction claim.
As shown in drawings, the load of a kind of LED driving power burn-in test, comprise connector body 1, described connector body 1 is provided with negative electrode spliced eye 21 and at least two anode spliced eyes 22, in the present embodiment, described connector body 1 is provided with the negative electrode spliced eye 21 consistent with described anode spliced eye 22 numbers, connector body 1 is divided into three split sockets, each socket is provided with ten antianode spliced eyes 22 and negative electrode spliced eye 21, so, described connector body 1 is provided with 30 antianode spliced eyes 22 and negative electrode spliced eye 21, adjacent described negative electrode spliced eye 21 is electrically connected, the circuit global design is convenient in this design, is convenient to the connection that anode spliced eye 22 is connected with the negative electrode spliced eye; Be connected with diode between the adjacent described anode spliced eye 22, described diode is fast diode, all described diode series connection; Also comprise the selection control that an end is connected with described negative electrode spliced eye 21 and the other end is connected with one of them described anode spliced eye 22, described selection control connects plate for conduction.Described negative electrode spliced eye 21 is connected with LED driving power burn in test circuit, and diode series circuit is connected with LED driving power burn in test circuit, and this tie point can be positioned at any position of diode series circuit.
Certainly, also a negative electrode spliced eye 21 can only be set, a plurality of anode spliced eyes 22 are set, selection control adopts two ends with the wire of connection-peg, one of them connection-peg is connected with negative electrode spliced eye 21, changes the number that is linked into the fast diode in the circuit by the link position that changes another connection-peg and anode spliced eye 22.
LED is actual to be exactly light-emitting diode, and fast diode is low price not only, and can simulate the operating characteristic of LED.According to VF=0.85~0.88V of specifications FR107, we can determine according to the output voltage of power supply a number of fast diode.Be output as 17V such as power supply, then a number of fast diode is 17/0.85=20pcs.
The LED driving power is constant-current source, and the precision of current constant is extremely important.State when recognizing that exactly the LED driving power is aging can increase the monitoring alarm function.Be under the normal operating conditions, the white lamp U1 on the LED driving power burn in test circuit is for opening, and red light U2 closes; When the electric current of power supply output exceeded specification, then white lamp U1 closed, and red light U2 opens.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (5)

1.LED the load of driving power burn-in test is characterized in that: comprise connector body, described connector body is provided with negative electrode spliced eye and at least two anode spliced eyes, is connected with diode between the adjacent described anode spliced eye, all described diode series connection; Also comprise the selection control that an end is connected with described negative electrode spliced eye and the other end is connected with one of them described anode spliced eye.
2. as claimed in claim 1 LED driving power burn-in test load is characterized in that: described connector body is provided with the negative electrode spliced eye consistent with described anode spliced eye number, and adjacent described negative electrode spliced eye is electrically connected.
3. as claimed in claim 2 LED driving power burn-in test load is characterized in that: described selection control connects plate for conduction.
4. as claimed in claim 1 LED driving power burn-in test load is characterized in that: described connector body is provided with 30 anode spliced eyes.
5. such as the load of the described LED driving power of the arbitrary claim of claim 1 to 4 burn-in test, it is characterized in that: described diode is fast diode.
CN 201220263801 2012-06-05 2012-06-05 LED drive power aging test load Expired - Fee Related CN202721885U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220263801 CN202721885U (en) 2012-06-05 2012-06-05 LED drive power aging test load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220263801 CN202721885U (en) 2012-06-05 2012-06-05 LED drive power aging test load

Publications (1)

Publication Number Publication Date
CN202721885U true CN202721885U (en) 2013-02-06

Family

ID=47623685

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220263801 Expired - Fee Related CN202721885U (en) 2012-06-05 2012-06-05 LED drive power aging test load

Country Status (1)

Country Link
CN (1) CN202721885U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104122506A (en) * 2013-04-25 2014-10-29 深圳市海洋王照明工程有限公司 LED lamp driving power test method
CN112965003A (en) * 2021-02-01 2021-06-15 佛山市博顿光电科技有限公司 Power supply aging load circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104122506A (en) * 2013-04-25 2014-10-29 深圳市海洋王照明工程有限公司 LED lamp driving power test method
CN104122506B (en) * 2013-04-25 2016-12-28 深圳市海洋王照明工程有限公司 A kind of LED drives power supply test method
CN112965003A (en) * 2021-02-01 2021-06-15 佛山市博顿光电科技有限公司 Power supply aging load circuit
CN112965003B (en) * 2021-02-01 2024-04-30 佛山市博顿光电科技有限公司 Power supply aging load circuit

Similar Documents

Publication Publication Date Title
CN202949099U (en) Portable low voltage electricity testing indicating plug
CN203299316U (en) Line sequence detector
CN202721885U (en) LED drive power aging test load
CN203191534U (en) Test box for LED (light-emitting diode) power panel
CN103915023B (en) Digital circuit experiment device and experimental technique
CN203396876U (en) Fast cable calibration instrument
CN204989379U (en) Net twine survey line ware with pilot lamp
CN110780238A (en) Multi-core cable detection device
CN203840625U (en) LED chip self-detection alarm circuit
CN206209029U (en) Metal spring leaf contact condition detection means
CN201944632U (en) LED (Light Emitting Diode) daylight lamp
CN201740835U (en) Wire testing device
CN204190980U (en) High-voltage LED light bar constant current source driving circuit
CN107631193A (en) General-purpose lamp plate and lamp plate string are used in a kind of LED drive power test
CN202651545U (en) Ethernet RJ45 plug equipped with line finding indicating lamp
CN109307814B (en) Capacitor reliability test circuit
CN208058504U (en) A kind of LED light bar
CN202177671U (en) Electronic component parameter testing platform
CN205176334U (en) SFP optic fibre socket overhauls tool
CN204903692U (en) Multicore cable wire size measuring device
CN105467330A (en) LED power supply aging test tool
CN204832474U (en) Power tool observation circuit that ages
CN204228930U (en) LED power aging testing jig
CN109143062A (en) The convenient checker of pressure switch
CN102855860B (en) LED (light-emitting diode) drive circuit and liquid crystal display

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130206

Termination date: 20130605