CN105611670B - Control circuit for matching parameters of different LED lamp panels - Google Patents
Control circuit for matching parameters of different LED lamp panels Download PDFInfo
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- CN105611670B CN105611670B CN201510998887.2A CN201510998887A CN105611670B CN 105611670 B CN105611670 B CN 105611670B CN 201510998887 A CN201510998887 A CN 201510998887A CN 105611670 B CN105611670 B CN 105611670B
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- 238000005070 sampling Methods 0.000 claims abstract description 10
- 230000003321 amplification Effects 0.000 claims abstract description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to a control circuit for matching different parameters of an LED lamp panel, wherein the input end of an AC power supply is connected with the input end of a rectifying circuit, the input end of the rectifying circuit is connected with a filter circuit, and the filter circuit is connected with a light-emitting LED row through a Flyback converter; the output voltage sampling circuit is connected with the digital encoder through a low-pass filter; the light-emitting LED array is connected with a digital encoder through a signal amplification circuit, and the digital encoder is connected with a digital decoder through a photoelectric coupler; the triangular wave generating circuit is connected with the Flyback converter through the digital decoder. The circuit of the invention avoids repeated design, shortens development period and cost; the production control links and corresponding detection equipment are reduced, so that the production management cost is greatly reduced.
Description
Technical field
The present invention and illumination driving circuit technical field, more particularly to a kind of control for being used to match different LED board parameters
Circuit processed.
Background technology
LED/light source is more and more used as the new lover of lighting field, but due to domestic no comparatively perfect
Professional standard and laws and regulations cause light fixture product type numerous.So as to cause light source (LED modules) that each family manufactures and designs,
Drive control circuit parameter is different, and different products can not replace general.As the converter design enterprise of LED control devices,
Cost is added for the different product design iterations of each light fixture customization, the construction cycle is added, in a disguised form improves production
The finished product and price of product, are that the application and popularization of LED light product-derived bring very big resistance.The LED of each family currently on the market
Control device is broadly divided into two kinds：Constant current output and constant pressure output.Such as rated power is that 200W constant currents are 1750mA's
Driver matching is the 5 and 36 LED array modules gone here and there, and is 180 LEDs altogether, every core power is 1W or so, defeated
Go out power about 200W.But if it is 2100mA that the LED array for being 6 and 30 strings, which are equally the constant currents that 200W needs, just
Need the LED driving transducers of different parameters matching.So as to add use cost, it is unfavorable for the popularization of product.
The content of the invention
It is an object of the invention to：It is used to match different LED board parameters there is provided a kind of for above-mentioned problem
Control circuit.
The technical solution adopted by the present invention is such：A kind of control circuit for being used to match different LED board parameters, bag
Include AC power input, rectification circuit, filter circuit, Flyback converters, triangle wave generating circuit, photoelectrical coupler, signal
Amplifying circuit, digital decoder, digital encoder, output voltage sampling circuit, low pass filter and emitting led row；Described
AC power input is connected with the input of rectification circuit, and the input of rectification circuit is connected with filter circuit, described
Filter circuit is connected by Flyback converters with emitting led row；Described output voltage sampling circuit passes through LPF
Device is connected with digital encoder；Described emitting led row are connected by signal amplification circuit with digital encoder, and numeral is compiled
Code device is connected by photoelectrical coupler with digital decoder；Described triangle wave generating circuit by digital decoder with
Flyback converters are connected.
It is preferred that, described filter circuit uses filter capacitor C1.
It is preferred that, described rectification circuit is to be formed by connecting by 4 commutation diodes by the form of full-wave bridge rectifier circuit.
It is preferred that, described signal amplification circuit is made up of resistance R4 and operational amplifier amplifer.
It is preferred that, described emitting led row emitting led are composed in series by multiple.
It is preferred that, described output voltage sampling circuit is made up of resistance R2 and R3.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：The circuit structure letter of the present invention
It is single, it is easy to produce and promotes；The circuit of the present invention causes the alternative multiple models of a machine model, it is to avoid design iterations,
Shorten construction cycle and expense；So that warehousing management is simpler, can simultaneously it be got ready the goods for multiple clients；Reduce life
Controlling unit and corresponding detection device are produced, so as to greatly reduce production management cost.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the schematic diagram of circuit of the present invention；
Fig. 2 is the specific implementation schematic diagram of circuit of the present invention；
Fig. 3 controls the output control curve map of circuit for the present invention；
Fig. 4 is collection voltages step and time diagram of the invention.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As illustrated in fig. 1 and 2, a kind of control circuit for being used to match different LED board parameters, including AC power supplies input
End, rectification circuit, filter circuit, Flyback converters, triangle wave generating circuit (sawtooth generator), photoelectricity coupling
It is clutch, signal amplification circuit, digital decoder (decoder), digital encoder (encoder), output voltage sampling circuit, low
Bandpass filter (low-pass fllter) and emitting led row；Described AC power input (input) and rectification circuit
(bridge) input is connected, and the input of rectification circuit is connected with filter circuit, and described filter circuit passes through
Flyback converters are connected with emitting led row；Described output voltage sampling circuit passes through low pass filter (low-pass
Fllter) it is connected with digital encoder (encoder)；Described emitting led row pass through signal amplification circuit and digital coding
Device (encoder) is connected, and digital encoder (encoder) is connected by photoelectrical coupler with digital decoder (decoder)
Connect；Described triangle wave generating circuit (sawtooth generator) is become by digital decoder (decoder) and Flyback
Parallel operation is connected.
Specifically, described filter circuit uses filter capacitor C1.
Specifically, described rectification circuit is by the form connection of full-wave bridge rectifier circuit by 4 commutation diodes
Into.
Specifically, described signal amplification circuit is made up of resistance R4 and operational amplifier amplifer.
Specifically, described emitting led row emitting led are composed in series by multiple.
Specifically, described output voltage sampling circuit is made up of resistance R2 and R3.
As shown in Figure 3, control the related data information of the output control curve map of circuit as follows：
1) output no-load voltage loop works, and ceiling voltage is limited in V0, and electric current is 0.
2) P0 takes load, and electric current is constant in minimum value I0, if now detection voltage voltage is interval near V1, revision
Constant current set-point is I1.
If 3) voltage is interval near V2, revision constant current set-point is I2, into constant current mode.
If 4) voltage is interval near V3, revision constant current set-point is I3, into constant current mode.
If 5) voltage is less than V3, revision constant current set-point is I0, and LED/light source is mismatched or damaged, into minimum output
Power protected mode.
6) 4-6 normal work can be set interval, each interval power output P0=P1=P2=P3 is constant, such as
Area1=Area2.
As shown in Figure 4, start, circuit collection voltages signal is different according to voltage, changes current constant control point, automatically from
stag.1→stag.2、stag.3、stag.4.Interval time be t1 '-t1 the foregoing is only presently preferred embodiments of the present invention and
, it is not intended to limit the invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention
Deng should be included in the scope of the protection.
Claims (1)
1. a kind of control circuit for being used to match different LED board parameters, it is characterised in that including AC power input, rectification
Circuit, filter circuit, Flyback converters, triangle wave generating circuit, photoelectrical coupler, signal amplification circuit, digital decoding
Device, digital encoder, output voltage sampling circuit, low pass filter and emitting led row；Described AC power input and rectification
The input of circuit is connected, and the input of rectification circuit is connected with filter circuit, and described filter circuit passes through Flyback
Converter is connected with emitting led row；Described output voltage sampling circuit is connected by low pass filter with digital encoder
Connect；Described emitting led row are connected by signal amplification circuit with digital encoder, and digital encoder passes through photoelectrical coupler
It is connected with digital decoder；Described triangle wave generating circuit is connected by digital decoder with Flyback converters；Institute
The filter circuit stated uses filter capacitor C1；Described rectification circuit is to press full-wave bridge rectifier circuit by 4 commutation diodes
Form be formed by connecting；Described signal amplification circuit is made up of resistance R4 and operational amplifier amplifer；Described is luminous
LED array emitting led is composed in series by multiple；Described output voltage sampling circuit is made up of resistance R2 and R3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510998887.2A CN105611670B (en) | 2015-12-25 | 2015-12-25 | Control circuit for matching parameters of different LED lamp panels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510998887.2A CN105611670B (en) | 2015-12-25 | 2015-12-25 | Control circuit for matching parameters of different LED lamp panels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105611670A CN105611670A (en) | 2016-05-25 |
| CN105611670B true CN105611670B (en) | 2017-10-13 |
Family
ID=55991125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510998887.2A Active CN105611670B (en) | 2015-12-25 | 2015-12-25 | Control circuit for matching parameters of different LED lamp panels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105611670B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201846499U (en) * | 2010-06-30 | 2011-05-25 | 深圳市浩城微电子科技有限公司 | Output conversion circuit for LED drive power supply |
| CN103889133A (en) * | 2014-04-21 | 2014-06-25 | 美芯晟科技（北京）有限公司 | Dimmable light-emitting diode (LED) drive circuit |
| CN104365183A (en) * | 2012-05-31 | 2015-02-18 | 硅工厂股份有限公司 | Power supply circuit for driving led lamp and power supply method, and primary-side control circuit of flyback transformer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004140886A (en) * | 2002-10-15 | 2004-05-13 | Koito Mfg Co Ltd | Switching regulator circuit and lighting fixture for vehicle |
-
2015
- 2015-12-25 CN CN201510998887.2A patent/CN105611670B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201846499U (en) * | 2010-06-30 | 2011-05-25 | 深圳市浩城微电子科技有限公司 | Output conversion circuit for LED drive power supply |
| CN104365183A (en) * | 2012-05-31 | 2015-02-18 | 硅工厂股份有限公司 | Power supply circuit for driving led lamp and power supply method, and primary-side control circuit of flyback transformer |
| CN103889133A (en) * | 2014-04-21 | 2014-06-25 | 美芯晟科技（北京）有限公司 | Dimmable light-emitting diode (LED) drive circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105611670A (en) | 2016-05-25 |
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