CN203691684U - LED drive power which can set the output voltage and the output current - Google Patents
LED drive power which can set the output voltage and the output current Download PDFInfo
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- CN203691684U CN203691684U CN201320789176.0U CN201320789176U CN203691684U CN 203691684 U CN203691684 U CN 203691684U CN 201320789176 U CN201320789176 U CN 201320789176U CN 203691684 U CN203691684 U CN 203691684U
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Abstract
The utility model provides a LED drive power which can set the output voltage and the output current and includes a rectifier filter unit, a power factor correction circuit and an input voltage current sampling circuit respectively connected with the rectifier filter unit, a single-chip respectively connected with the input voltage current sampling circuit and the power factor correction circuit, a storage unit connected with the single-chip and used for storing data, an output voltage current control circuit respectively connected with the power factor correction circuit and the single-chip and used for adjusting the output voltage and the output current, an output voltage current sampling circuit respectively connected with the output end of the output voltage current control circuit and the single-chip and used for sampling the output voltage and the output current of the output voltage current control circuit; the LED drive power transfers the output parameter via a direct current output wire. Carrying out the LED drive power which can set the output voltage and the output current provided by the utility model has the following beneficial effects of simple structure and low cost.
Description
Technical field
The utility model relates to field of power supplies, particularly a kind of LED driving power that can set output voltage and output current.
Background technology
At present, the most of LED light fixture on market is all incompatible the completing of series connection adduction joint group by LED lamp pearl.Different application scenarios, different compound modes can be selected by different manufacturers.Being infeasible and will force to make a standard in this field, is also unscientific.Make the product that meets various demands, one of topmost feature of LED lighting just by LED lamp pearl flexible combination.But relative with this demand is LED driving power product, only in standardization, just can improve reliability in the situation of production in enormous quantities, reduce costs.How to produce the LED driving power that can mate flexibly various LED light fixtures in batches, this problem values must be inquired into.Had at present the technology of company at exploitation this respect, but selection without exception increase the mode that circuit is set and terminal is set, its cost is higher, complex structure; When being applied on the special power supplies such as waterproof power supply, explosion-proof electrical source when these schemes especially, cost becomes multiple especially to be increased, and cost pressure when it is applied is very large.Existing LED driving power is lit a lamp with DC output line, carries out parameter setting with data wire, and this also can increase cost undoubtedly.
Utility model content
The technical problems to be solved in the utility model is, for the higher defect of said structure complexity, the cost of prior art, provides a kind of LED driving power that can set output voltage and output current simple in structure, lower-cost.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of LED driving power that can set output voltage and output current, comprise rectification filtering unit; The circuit of power factor correction being connected with described rectification filtering unit; Be connected with described rectification filtering unit, input voltage and input current sample circuit for the voltage and current of described rectification filtering unit is sampled; The single-chip microcomputer being connected with described input voltage and input current sample circuit and circuit of power factor correction respectively; Be connected with described single-chip microcomputer, for storing the memory cell of data; Be connected with output and the single-chip microcomputer of described circuit of power factor correction respectively, for the output voltage current regulating circuit of regulation output voltage and output current; The output voltage current sampling circuit that is connected with output and the single-chip microcomputer of described output voltage current regulating circuit respectively, samples for the output voltage to described output voltage current regulating circuit and output current; Described LED driving power is using its DC output line as holding wire, and transmits output parameter by described DC output line.
In the LED driving power that can set output voltage and output current described in the utility model, described memory cell is EEPROM, and described single-chip microcomputer is controlled described output voltage current regulating circuit regulation output voltage and output current by the data that read in described EEPROM.
In the LED driving power that can set output voltage and output current described in the utility model, described rectification filtering unit comprises EMI filter circuit and rectification circuit, the input termination alternating current of described EMI filter circuit, output is connected with the input of described input voltage and input current sample circuit and rectification circuit respectively, and the output of described rectification circuit is connected with described circuit of power factor correction.
In the LED driving power that can set output voltage and output current described in the utility model, described LED driving power also comprises accessory power supply, and described accessory power supply is connected with described rectification circuit, circuit of power factor correction and single-chip microcomputer respectively.
In the LED driving power that can set output voltage and output current described in the utility model, what described output voltage current regulating circuit was exported is direct current signal.
In the LED driving power that can set output voltage and output current described in the utility model, the output of described output voltage current regulating circuit is also connected with LED light fixture.
In the LED driving power that can set output voltage and output current described in the utility model, described LED driving power arranges equipment with output parameter and is connected by communication line, described output parameter arranges equipment user-defined magnitude of voltage and current value is sent to described single-chip microcomputer, and is write in described EEPROM.
In the LED driving power that can set output voltage and output current described in the utility model, described communication line is the DC output line of described LED driving power.
Implement the LED driving power that can set output voltage and output current of the present utility model, there is following beneficial effect: owing to using rectification filtering unit, circuit of power factor correction, input voltage and input current sample circuit, single-chip microcomputer, memory cell, output voltage current regulating circuit and output voltage current sampling circuit, single-chip microcomputer is by the data in reading cells, control output voltage current regulating circuit and carry out regulation output voltage and output current, be used as the communication line of transformation parameter with the DC output line of LED driving power simultaneously, it can carry out parameter setting and also can light a lamp, parameter setting and lighting function are rolled into one, save data wire, do not need to have circuit being set and terminal is set of power supply of similar functions yet, so its product structure is simple, cost is lower, above-mentioned LED driving power has had the function that arranges of output voltage and output current, there is no again the extra port that arranges, and its product reliability is higher, and while being applied to the special power supply such as waterproof, explosion-proof electrical source, advantage is more obvious.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that the utility model can be set the electrical block diagram in embodiment of LED driving power of output voltage and output current.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Can set in the LED driving power embodiment of output voltage and output current at the utility model, this can set output voltage and output current LED driving power electrical block diagram as shown in Figure 1.In Fig. 1, this LED driving power comprises rectification filtering unit 1, circuit of power factor correction 2, output voltage current regulating circuit 3, single-chip microcomputer 4, memory cell 5, input voltage and input current sample circuit 6 and output voltage current sampling circuit 7; Wherein, circuit of power factor correction 2 is connected with rectification filtering unit 1; Input voltage and input current sample circuit 6 is connected with rectification filtering unit 1, for the voltage and current of rectification filtering unit 1 is sampled; Single-chip microcomputer 4 is connected with input voltage and input current sample circuit 6 and circuit of power factor correction 2 respectively; Memory cell 5 is connected with single-chip microcomputer 4, for storing data; Output voltage current regulating circuit 3 is connected with output and the single-chip microcomputer 4 of circuit of power factor correction 2 respectively, for regulation output voltage and output current; Output voltage current sampling circuit 7 is connected, samples for the output voltage to output voltage current regulating circuit 7 and output current with output and the single-chip microcomputer of output voltage current regulating circuit 3 respectively.In the present embodiment, LED driving power is using its DC output line as holding wire, and transmits output parameter by DC output line.
In the present embodiment, memory cell 5 is EEPROM, single-chip microcomputer 4 is controlled output voltage current regulating circuit 3 regulation output voltage and output currents by the data that read in EEPROM, specifically in actual applications, as long as this LED driving power is received to output parameter to be arranged on equipment, communication line with the DC output line of LED driving power as output parameter, user-defined magnitude of voltage and current value are sent to single-chip microcomputer, and write EEPROM, make output voltage and output current reach the value that user sets.This LED driving power does not need to have circuit being set and terminal is set of power supply of similar functions, and it is simple in structure, applies cost lower; This LED driving power has the function that arranges of output voltage and output current, there is no again the extra port that arranges, so its reliability is higher, while being applied to the special power supplies such as waterproof power supply, its advantage is more obvious.
In the present embodiment, rectification filtering unit 1 comprises EMI filter circuit 11 and rectification circuit 12, the input termination alternating current of EMI filter circuit 11, output is connected with the input of input voltage and input current sample circuit 6 and rectification circuit 12 respectively, and the output of rectification circuit 12 is connected with circuit of power factor correction 2.In the present embodiment, the input termination 220V alternating current of EMI filter circuit 11.
In the present embodiment, this LED driving power also comprises accessory power supply 8, and accessory power supply 8 is for this LED driving power is helped out, and accessory power supply 8 is connected with rectification circuit 12, circuit of power factor correction 2 and single-chip microcomputer 4 respectively.In the present embodiment Huang, what output voltage current regulating circuit 3 was exported is direct current signal, is also that output voltage and the output current of output voltage current regulating circuit 3 is all direct current signal.The output of output voltage current regulating circuit 3 is also connected with LED light fixture 9, it is worth mentioning that, LED light fixture 9 does not belong to a part for LED driving power, also be that LED driving power does not comprise LED light fixture 9, a just external equipment of LED light fixture 9, in the present embodiment, be for convenience, so LED light fixture 9 is drawn in Fig. 1.
For the output voltage to LED driving power and output current arrange better, in the present embodiment, LED driving power arranges equipment (not shown) with output parameter and is connected by communication line, output parameter arranges equipment user-defined magnitude of voltage and current value is sent to single-chip microcomputer 4, then writes in EEPROM.Actual easy to use, only the input of LED driving power and output need be connected respectively to output parameter and arrange on equipment, be electrified the setting that just can automatically complete output voltage and output current, operate very simple and easy.
In a word, in the present embodiment, after energising, single-chip microcomputer 4 reads the data in EEPROM, then according to output current and the output voltage of these data settings LED driving power self.The process of setting output voltage and output current is exactly to revise the process of data in EEPROM, by output parameter, equipment is set user-defined current value and magnitude of voltage are informed to single-chip microcomputer 4, wherein communication line is the DC output line of LED driving power, then writes EEPROM.Then this LED driving power just requires to carry out work according to new output parameter.This LED driving power does not need to have circuit being set and terminal is set of power supply of similar functions, and it is simple in structure, applies cost lower; This LED driving power has the function that arranges of output voltage and output current, there is no again the extra port that arranges, so its reliability is higher, while being applied to the special power supply such as waterproof, explosion-proof electrical source, its advantage is more obvious.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (8)
1. the LED driving power that can set output voltage and output current, is characterized in that, comprises rectification filtering unit; The circuit of power factor correction being connected with described rectification filtering unit; Be connected with described rectification filtering unit, input voltage and input current sample circuit for the voltage and current of described rectification filtering unit is sampled; The single-chip microcomputer being connected with described input voltage and input current sample circuit and circuit of power factor correction respectively; Be connected with described single-chip microcomputer, for storing the memory cell of data; Be connected with output and the single-chip microcomputer of described circuit of power factor correction respectively, for the output voltage current regulating circuit of regulation output voltage and output current; The output voltage current sampling circuit that is connected with output and the single-chip microcomputer of described output voltage current regulating circuit respectively, samples for the output voltage to described output voltage current regulating circuit and output current; Described LED driving power is using its DC output line as holding wire, and transmits output parameter by described DC output line.
2. the LED driving power that can set output voltage and output current according to claim 1, it is characterized in that, described memory cell is EEPROM, and described single-chip microcomputer is controlled described output voltage current regulating circuit regulation output voltage and output current by the data that read in described EEPROM.
3. the LED driving power that can set output voltage and output current according to claim 2, it is characterized in that, described rectification filtering unit comprises EMI filter circuit and rectification circuit, the input termination alternating current of described EMI filter circuit, output is connected with the input of described input voltage and input current sample circuit and rectification circuit respectively, and the output of described rectification circuit is connected with described circuit of power factor correction.
4. the LED driving power that can set output voltage and output current according to claim 3, it is characterized in that, described LED driving power also comprises accessory power supply, and described accessory power supply is connected with described rectification circuit, circuit of power factor correction and single-chip microcomputer respectively.
5. the LED driving power that can set output voltage and output current according to claim 4, is characterized in that, what described output voltage current regulating circuit was exported is direct current signal.
6. the LED driving power that can set output voltage and output current according to claim 5, is characterized in that, the output of described output voltage current regulating circuit is also connected with LED light fixture.
7. according to the LED driving power that can set output voltage and output current described in claim 2 to 6 any one, it is characterized in that, described LED driving power arranges equipment with output parameter and is connected by communication line, described output parameter arranges equipment user-defined magnitude of voltage and current value is sent to described single-chip microcomputer, and is write in described EEPROM.
8. the LED driving power that can set output voltage and output current according to claim 7, is characterized in that, described communication line is the DC output line of described LED driving power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789176.0U CN203691684U (en) | 2013-12-03 | 2013-12-03 | LED drive power which can set the output voltage and the output current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789176.0U CN203691684U (en) | 2013-12-03 | 2013-12-03 | LED drive power which can set the output voltage and the output current |
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| Publication Number | Publication Date |
|---|---|
| CN203691684U true CN203691684U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320789176.0U Expired - Lifetime CN203691684U (en) | 2013-12-03 | 2013-12-03 | LED drive power which can set the output voltage and the output current |
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| CN (1) | CN203691684U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980039A (en) * | 2015-07-15 | 2015-10-14 | 深圳市镭润科技有限公司 | Switching power supply and method and device for controlling switching power supply |
| CN106686809A (en) * | 2016-11-28 | 2017-05-17 | 深圳市镭润科技有限公司 | Adaptive LED dimming circuit and method |
-
2013
- 2013-12-03 CN CN201320789176.0U patent/CN203691684U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980039A (en) * | 2015-07-15 | 2015-10-14 | 深圳市镭润科技有限公司 | Switching power supply and method and device for controlling switching power supply |
| CN106686809A (en) * | 2016-11-28 | 2017-05-17 | 深圳市镭润科技有限公司 | Adaptive LED dimming circuit and method |
| CN106686809B (en) * | 2016-11-28 | 2018-11-16 | 深圳市镭润科技有限公司 | A kind of adaptive LED light adjusting circuit and method |
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Granted publication date: 20140702 |
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