CN102238783A - Single large power light emitting diode (LED) power supply driving system - Google Patents
Single large power light emitting diode (LED) power supply driving system Download PDFInfo
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- CN102238783A CN102238783A CN2011101790047A CN201110179004A CN102238783A CN 102238783 A CN102238783 A CN 102238783A CN 2011101790047 A CN2011101790047 A CN 2011101790047A CN 201110179004 A CN201110179004 A CN 201110179004A CN 102238783 A CN102238783 A CN 102238783A
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Abstract
The invention relates to a single large power light emitting diode (LED) power supply driving system, which comprises an external circuit, a driving power supply and a plurality of large power LED lamps; the driving power supply is connected to the external circuit in series; the driving power supply is used for performing filtration, rectification and voltage reduction on the current of the external circuit; the driving power supply is connected to the external circuit and divides the external circuit into a mains supply circuit and a light source circuit; the mains supply circuit is connected with the external mains supply; the plurality of large power LED lamps are connected to the light source circuit in parallel; and the driving power supply comprises an electromagnetic compatible module, a rectification module, a constant-voltage control module and a high-frequency pulse width modulation module which are sequentially connected in series.
Description
Technical field
The present invention relates to a kind of driving power source system of great power LED, be meant especially a kind ofly single driving power only is set in circuit just can drives the system that several great power LEDs are worked simultaneously simultaneously.
Background technology
As everyone knows, LED is light-emitting diode just, is a kind of solid-state semiconductor device, and it can directly be converted into luminous energy with electricity.So the LED productive life that has been applied in people widely such as the characteristics that harmful substance is convenient to reclaim because that the LED luminous element has in concrete the use is energy-conservation, long service life, inside do not have mercury etc. have now suffered, the internal characteristics of LED has determined that it is that optimal light source removes to replace traditional light source, LED is that a very little wafer is encapsulated in the epoxy resin the inside basically in concrete enforcement, so very little of its volume, very light.
So in the advantage life that has been used in people that the LED technology is very general now just because of above-mentioned LED, when the brightness of illumination needs are very strong, a large amount of LED need be linked together to promote integral illumination intensity but its power of general led light source is all less than normal, progressively entered into people's the visual field along with the present great power LED of development of technology, great power LED has promoted the illumination intensity and the brightness of illumination of integral LED, so each manufacturer is all utilizing great power LED to substitute traditional LED now.
LED needs the operating current of constant pressure and flow when specifically carrying out luminous work, so in the LED light fixture, all need to be equipped with relevant driving power, with regard to the type of drive of the high-power LED illumination of present appearance, all to each LED lamp join one independently the LED driving power realize, as shown in Figure 1, configuration schematic diagram for traditional high-power LED driving power source, be parallel with some groups of high-powered LED lamps on the external circuit A, all be provided with independently driving power between each group high-powered LED lamp and external circuit A, its technical scheme all is to adopt constant-current driving.But this connection type of drive is in concrete enforcement, at first, the cost of integral product is than higher, all be equipped with independently driving power because in concrete enforcement, need organize high-powered LED lamp for each, like this driving power account for the cost ratio of integral illumination equipment must be than higher, secondly, all be equipped with independently driving power because will organize high-powered LED lamp for each, so the workload of installing in actual installation is bigger, step is all more loaded down with trivial details when safeguarding the replacing driving power in addition, is the major defect of conventional art as mentioned above.
Summary of the invention
The invention provides a kind of great power LED single drive power supply system, single driving power only is set in its circuit just can be driven several great power LEDs simultaneously and work simultaneously and then have simple in structure, characteristics with low cost, and this is to be main purpose of the present invention.
The technical solution adopted in the present invention is: the single driving power source system of a kind of great power LED, it comprises external circuit, driving power and some high-power LED lamps, this driving power is connected in series in this external circuit, by this driving power the electric current in this external circuit is carried out filtering, rectification, step-down processing, this driving power is connected in this external circuit and this external circuit is isolated into mains circuit and circuit of light sources, wherein, this mains circuit connects outside civil power, and some these high-power LED lamps are connected in parallel in this circuit of light sources.
This driving power comprises the electromagnetic compatibility module, rectification module, constant voltage control module and high-frequency impulse width modulated module, this electromagnetic compatibility module, this rectification module, this constant voltage control module and this high-frequency impulse width modulated module are connected in series successively, outside civil power in this mains circuit at first carries out Electro Magnetic Compatibility through this electromagnetic compatibility module to be handled, then carrying out rectification through this rectification module handles, carrying out constant voltage through this constant voltage control module afterwards handles, carry out pulse width modulation through this high-frequency impulse width modulated module at last, transferring in this circuit of light sources after the outside civil power in this mains circuit is handled through this driving power provides the work electric current for some these high-power LED lamps.
In the technical scheme of the present invention as mentioned above this unique driving power is connected in this external circuit, by this driving power the outside civil power of this external circuit is handled conversion and form the operating current that some these high-power LED lamps can directly utilize, reduce driving power quantity from reaching, simplify the effect of integrated circuit structure.
In concrete enforcement in first kind of preferred embodiment of the present invention, be high-tension current or low-tension current in this mains circuit of this external circuit, specifically describing to surpassing 220 volts is high-tension current, be lower than 220 volts and be low-tension current, electric current in this mains circuit is converted into low-tension current and transfers in this circuit of light sources through this driving power provides the work electric current for some these high-power LED lamps, this moment, low-tension current voltage in this circuit of light sources is smaller or equal to 220 volts, the voltage of the low-tension current in concrete enforcement in this circuit of light sources can be 12 volts or 24 volts, each this high-power LED lamp all comprises high-power LED light source and resistance, and this resistance and this high-power LED light source are connected in series.
In concrete enforcement in second kind of preferred embodiment of the present invention, be high-tension current in this mains circuit of this external circuit, specifically describe to surpassing or equaling 220 volts and be high-tension current, be lower than 220 volts and be low-tension current, transfer in this circuit of light sources after electric current in this mains circuit transforms through this driving power and provide the work electric current for some these high-power LED lamps, this moment, electric current in this circuit of light sources also is a high-tension current, the voltage of the high-tension current in concrete enforcement in this circuit of light sources can be 220 volts, each this high-power LED lamp all comprises high-power LED light source and converter, this converter and this high-power LED light source are connected in series, and this converter is converted to low-tension current with the high-tension current in this circuit of light sources and carries out rectifying and wave-filtering luminous to drive this high-power LED light source.
In concrete enforcement because this high-power LED light source is a low-voltage driving, this converter does not promptly possess the constant voltage effect, does not possess the constant current effect yet, and the effect of this converter only is that high-tension current is converted to low-tension current, rectifying and wave-filtering outputs to this high-power LED light source then.
Beneficial effect of the present invention is: the present invention's outside civil power in this mains circuit in concrete work at first carries out Electro Magnetic Compatibility through this electromagnetic compatibility module to be handled, then carrying out rectification through this rectification module handles, carrying out constant voltage through this constant voltage control module afterwards handles, carry out pulse width modulation through this high-frequency impulse width modulated module at last, transferring in this circuit of light sources after the outside civil power in this mains circuit is handled through this driving power provides the work electric current for some these high-power LED lamps.In the technical scheme of the present invention this unique driving power is connected in this external circuit, by this driving power the outside civil power of this external circuit is handled conversion and form the operating current that some these high-power LED lamps can directly utilize, reduce driving power quantity from reaching, simplify the effect of integrated circuit structure.
Description of drawings
Fig. 1 is the circuit block diagram of conventional art.
Fig. 2 is a circuit block diagram of the present invention.
Fig. 3 is the circuit block diagram of driving power of the present invention.
Fig. 4 is the circuit block diagram of first kind of preferred embodiment of the present invention.
Fig. 5 is the circuit block diagram of second kind of preferred embodiment of the present invention.
Embodiment
Shown in Fig. 2 to 5, the single driving power source system of a kind of great power LED, it comprises external circuit 10, driving power 20 and some high-power LED lamps 30.
This driving power 20 is connected in series in this external circuit 10, carries out filtering, rectification, step-down processing by the electric current in 20 pairs of these external circuits 10 of this driving power.
This driving power 20 is connected in this external circuit 10 and this external circuit 10 is isolated into mains circuit 11 and circuit of light sources 12.
Wherein, this mains circuit 11 connects outside civil power, and some these high-power LED lamps 30 are connected in parallel in this circuit of light sources 12.
As shown in Figure 3, this driving power 20 comprises electromagnetic compatibility (EMC) module 21, rectification module 22, constant voltage control module 23 and high-frequency impulse width modulated (PWM) module 24.
This electromagnetic compatibility (EMC) module 21, this rectification module 22, this constant voltage control module 23 and this high-frequency impulse width modulated (PWM) module 24 are connected in series successively.
Outside civil power in this mains circuit 11 at first passes through this electromagnetic compatibility (EMC) module 21 and carries out the Electro Magnetic Compatibility processing, then carrying out rectification through this rectification module 22 handles, carry out constant voltage through this constant voltage control module 23 afterwards and handle, pass through this high-frequency impulse width modulated (PWM) module 24 at last and carry out pulse width modulation.
Transfer in this circuit of light sources 12 after outside civil power in this mains circuit 11 is handled through this driving power 20 and provide the work electric current for some these high-power LED lamps 30.
In the technical scheme of the present invention as mentioned above this unique driving power 20 is connected in this external circuit 10, handle conversion by the outside civil power of 20 pairs of these external circuits 10 of this driving power and form the operating current that some these high-power LED lamps 30 can directly utilize, reduce driving power quantity from reaching, simplify the effect of integrated circuit structure.
As shown in Figure 4, in concrete enforcement, in first kind of preferred embodiment of the present invention, be high-tension current or low-tension current in this mains circuit 11 of this external circuit 10.
Specifically describing to surpassing 220 volts is high-tension current, be lower than 220 volts and be low-tension current,
Electric current in this mains circuit 11 is converted into low-tension current and transfers in this circuit of light sources 12 through this driving power 20 provides the work electric current for some these high-power LED lamps 30, this moment, the low-tension current voltage in this circuit of light sources 12 is smaller or equal to 220 volts.
The voltage of the low-tension current in concrete enforcement in this circuit of light sources 12 can be 12 volts or 24 volts.
Each this high-power LED lamp 30 all comprises high-power LED light source 31 and resistance 32.
This resistance 32 is connected in series with this high-power LED light source 31.
As shown in Figure 5, in concrete enforcement, in second kind of preferred embodiment of the present invention, be high-tension current in this mains circuit 11 of this external circuit 10.
Specifically describing to surpassing or equaling 220 volts is high-tension current, is lower than 220 volts and is low-tension current.
Transfer to after electric current in this mains circuit 11 transforms through this driving power 20 in this circuit of light sources 12 to some these high-power LED lamps 30 provide the work electric current, this moment, the electric current in this circuit of light sources 12 also is a high-tension current.
The voltage of the high-tension current in concrete enforcement in this circuit of light sources 12 can be 220 volts.
Each this high-power LED lamp 30 all comprises high-power LED light source 31 and converter 33.
This converter 33 is connected in series with this high-power LED light source 31.
This converter 33 is converted to low-tension current with the high-tension current in this circuit of light sources 12 and carries out rectifying and wave-filtering luminous to drive this high-power LED light source 31.
In concrete enforcement because this high-power LED light source 31 is low-voltage driving, this converter 33 does not promptly possess the constant voltage effect, does not possess the constant current effect yet, and the effect of this converter 33 only is that high-tension current is converted to low-tension current, rectifying and wave-filtering outputs to this high-power LED light source 31 then.
It should be noted that here great power LED alleged among the present invention can reach 1W, 2W, even tens of watts, operating current can be tens milliamperes not to be waited to the hundreds of milliampere.
Driving power output is low voltage voltage in first kind of preferred embodiment of the present invention, as 12 volts, 24 volts, only need to give the resistance of one 0.5 watt of LED lamp pearl series connection on the high-powered LED lamp, there are not other electronic devices and components again, its overall structure is simple, low cost product.
Driving power output is high-tension electricity in second kind of preferred embodiment of the present invention, and as 220 volts, the effect of the converter among the figure is exactly the high pressure of driving power to be exported change low pressure output driving high-powered LED lamp into, because high-powered LED lamp is a low pressure.Converter among the figure is promptly can not constant voltage, can not constant current, its effect becomes low pressure with high pressure exactly, and rectifying and wave-filtering outputs to high-powered LED lamp then.More than two kinds of execution modes can realize that " driving power drives the high-powered LED lamp more than.”
Above various embodiment have only expressed several concrete execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as limitation of the scope of the invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with claims.
Claims (6)
1. single driving power source system of great power LED, it is characterized in that: it comprises external circuit, driving power and some high-power LED lamps, this driving power is connected in series in this external circuit, by this driving power the electric current in this external circuit is carried out filtering, rectification, step-down is handled, this driving power is connected in this external circuit and this external circuit is isolated into mains circuit and circuit of light sources, wherein, this mains circuit connects outside civil power, some these high-power LED lamps are connected in parallel in this circuit of light sources
This driving power comprises the electromagnetic compatibility module, rectification module, constant voltage control module and high-frequency impulse width modulated module, this electromagnetic compatibility module, this rectification module, this constant voltage control module and this high-frequency impulse width modulated module are connected in series successively, outside civil power in this mains circuit at first carries out Electro Magnetic Compatibility through this electromagnetic compatibility module to be handled, then carrying out rectification through this rectification module handles, carrying out constant voltage through this constant voltage control module afterwards handles, carry out pulse width modulation through this high-frequency impulse width modulated module at last, transferring in this circuit of light sources after the outside civil power in this mains circuit is handled through this driving power provides the work electric current for some these high-power LED lamps.
2. the single driving power source system of a kind of great power LED as claimed in claim 1, it is characterized in that: be high-tension current or low-tension current in this mains circuit of this external circuit, specifically describing to surpassing 220 volts is high-tension current, be lower than 220 volts and be low-tension current, electric current in this mains circuit is converted into low-tension current and transfers in this circuit of light sources through this driving power provides the work electric current for some these high-power LED lamps, this moment, low-tension current voltage in this circuit of light sources is smaller or equal to 220 volts, each this high-power LED lamp all comprises high-power LED light source and resistance, and this resistance and this high-power LED light source are connected in series.
3. the single driving power source system of a kind of great power LED as claimed in claim 2 is characterized in that: the voltage of the low-tension current in this circuit of light sources is 12 volts.
4. the single driving power source system of a kind of great power LED as claimed in claim 2 is characterized in that: the voltage of the low-tension current in this circuit of light sources is 24 volts.
5. the single driving power source system of a kind of great power LED as claimed in claim 1, it is characterized in that: be high-tension current in this mains circuit of this external circuit, specifically describe to surpassing or equaling 220 volts and be high-tension current, be lower than 220 volts and be low-tension current, transfer in this circuit of light sources after electric current in this mains circuit transforms through this driving power and provide the work electric current for some these high-power LED lamps, this moment, electric current in this circuit of light sources also is a high-tension current, each this high-power LED lamp all comprises high-power LED light source and converter, this converter and this high-power LED light source are connected in series, and this converter is converted to low-tension current with the high-tension current in this circuit of light sources and carries out rectifying and wave-filtering luminous to drive this high-power LED light source.
6. the single driving power source system of a kind of great power LED as claimed in claim 5 is characterized in that: the voltage of the high-tension current in this circuit of light sources is 220 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101790047A CN102238783A (en) | 2011-06-29 | 2011-06-29 | Single large power light emitting diode (LED) power supply driving system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101790047A CN102238783A (en) | 2011-06-29 | 2011-06-29 | Single large power light emitting diode (LED) power supply driving system |
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| CN102238783A true CN102238783A (en) | 2011-11-09 |
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| CN2011101790047A Pending CN102238783A (en) | 2011-06-29 | 2011-06-29 | Single large power light emitting diode (LED) power supply driving system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090189534A1 (en) * | 2008-01-30 | 2009-07-30 | Chien-Lung Wang | LED Lamp And Driving Apparatus For The Same |
| CN101621873A (en) * | 2009-07-24 | 2010-01-06 | 重庆大学 | Intelligent driving system and energy-saving control method of street lamp based on LED array |
| CN101621871A (en) * | 2009-08-07 | 2010-01-06 | 烟台奥星电器设备有限公司 | New type high-power LED driving power source |
| CN201439885U (en) * | 2009-06-23 | 2010-04-21 | 深圳市桑达实业股份有限公司 | High-power LED illuminating system |
| CN101772246A (en) * | 2010-02-24 | 2010-07-07 | 英飞特电子（杭州）有限公司 | Multi-resonance circuit suitable for LED multi-path precise constant current driver |
-
2011
- 2011-06-29 CN CN2011101790047A patent/CN102238783A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090189534A1 (en) * | 2008-01-30 | 2009-07-30 | Chien-Lung Wang | LED Lamp And Driving Apparatus For The Same |
| CN201439885U (en) * | 2009-06-23 | 2010-04-21 | 深圳市桑达实业股份有限公司 | High-power LED illuminating system |
| CN101621873A (en) * | 2009-07-24 | 2010-01-06 | 重庆大学 | Intelligent driving system and energy-saving control method of street lamp based on LED array |
| CN101621871A (en) * | 2009-08-07 | 2010-01-06 | 烟台奥星电器设备有限公司 | New type high-power LED driving power source |
| CN101772246A (en) * | 2010-02-24 | 2010-07-07 | 英飞特电子（杭州）有限公司 | Multi-resonance circuit suitable for LED multi-path precise constant current driver |
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Application publication date: 20111109 |