CN204145852U - High voltage direct drives LED illumination System - Google Patents
High voltage direct drives LED illumination System Download PDFInfo
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- CN204145852U CN204145852U CN201420669283.4U CN201420669283U CN204145852U CN 204145852 U CN204145852 U CN 204145852U CN 201420669283 U CN201420669283 U CN 201420669283U CN 204145852 U CN204145852 U CN 204145852U
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Abstract
The utility model provides a kind of high voltage direct and drives LED illumination System, include at least two three phase full wave rectification unit and at least two directly drive LED light device, the input side of each described three phase full wave rectification unit all connects three-phase alternating current, the outlet side of each described three phase full wave rectification unit connects one respectively and describedly directly drives LED light device, and the outlet side of described three phase full wave rectification unit by DC high-voltage output end VH with reference to hold GND to be connected described LED light device; Each described normal bright LED particle circuit unit directly driving LED light device and all include controlled LED particle circuit unit and connect with it, described controlled LED particle circuit unit is controlled by control system, thus makes the LED particle in described controlled LED particle circuit unit realize conducting and short circuit.
Description
Technical field
The utility model relates to field of LED illumination, particularly relates to a kind of high voltage direct and drives LED illumination System.
Background technology
Light-emitting diode is referred to as LED.The diode be made up of the compound containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N) etc., can give off visible ray, thus can be used for making light-emitting diode when electronics and hole-recombination.As indicator light in circuit and instrument, or form word or numerical monitor.Gallium arsenide diode glows, gallium phosphide diode green light, silicon carbide diode Yellow light-emitting low temperature, gallium nitride diode blue light-emitting.Because chemical property divides again Organic Light Emitting Diode OLED and inorganic light-emitting diode LED.
LED is widely used in road lighting as the advanced luminescent device of one, but it is all adopt single phase alternating current (A.C.) mains-supplied that existing LED street lamp illuminator drives, such as single phase alternating current (A.C.) civil power, this single phase alternating current (A.C.) city electrically driven (operated) LED road lighting technology has two obvious shortcomings, the drive current of first road high-power illumination system is large, and required electric wire cost is high; It two is that the driving power efficiency comparison of LED lamp is low, is generally only about 90%.
Utility model content
The technical problems to be solved in the utility model how to reduce the cost of road LED illuminating street lamp, improves driving power efficiency.
In order to solve this technical problem, the utility model provides a kind of high voltage direct and drives LED illumination System, include at least two three phase full wave rectification unit and at least two directly drive LED light device, the input side of each described three phase full wave rectification unit all connects three-phase alternating current, the outlet side of each described three phase full wave rectification unit connects one respectively and describedly directly drives LED light device, and the outlet side of described three phase full wave rectification unit by DC high-voltage output end VH with reference to hold GND to be connected described LED light device.
Each described normal bright LED particle circuit unit directly driving LED light device and all include controlled LED particle circuit unit and connect with it, described controlled LED particle circuit unit is controlled by control system, thus makes the LED particle in described controlled LED particle circuit unit realize conducting and short circuit.
Described LED light device of directly driving comprises a substrate and is located at the some LED circuit unit modules on described substrate, some described LED circuit unit modules are held between GND with being parallel to described high-voltage output end VH and reference, and each described LED circuit unit module includes controlled LED particle circuit unit described at least one and normal bright LED particle circuit unit.
Described LED light device of directly driving comprises at least two high direct voltage driving LED modules, each high direct voltage driving LED module correspondence is arranged on one independently on substrate, and each described high direct voltage driving LED module includes controlled LED particle circuit unit described at least one and normal bright LED particle circuit unit.
Described normal bright LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.
Described controlled LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.
Described control system comprises some first kind containing switching function and directly drives LED integral control circuit;
Each described LED circuit unit module or high direct voltage driving LED module configuration at least two described first kind directly drive LED integral control circuit, and each described first kind is directly driven LED integral control circuit and connected with controlled LED particle circuit unit described at least one in corresponding described LED circuit unit module or high direct voltage driving LED module;
The described first kind is directly driven LED integral control circuit and is at least configured to realize following functions:
The information of response input, controls conducting and the short circuit of LED particle in controlled LED particle circuit unit.
The quantity of the controlled LED particle circuit unit in each described LED circuit unit module or high direct voltage driving LED module is at least two, described control system comprises an Equations of The Second Kind with switching function and directly drives LED integral control circuit, and all described controlled LED particle circuit unit in a described LED circuit unit module or high direct voltage driving LED module is all connected to a described Equations of The Second Kind and directly drives on LED integral control circuit;
Described Equations of The Second Kind directly drives LED integral control circuit and is at least configured to realize following functions:
The information of response input, controls conducting and the short circuit of LED particle in controlled LED particle circuit unit.
Described Equations of The Second Kind directly drives LED integral control circuit and is also configured to realize following functions:
Transient current according to load in described LED circuit unit module or high direct voltage driving LED module controls the conducting of LED particle in described controlled LED particle circuit unit and short circuit.
The described first kind is directly driven LED integral control circuit and is also configured to realize following functions:
Transient current according to load in described LED circuit unit module or high direct voltage driving LED module controls the conducting of LED particle in described controlled LED particle circuit unit and short circuit.
Described Equations of The Second Kind directly drives the dimming function that LED integral control circuit has PWM and 0-10V.
The described first kind directly drives the dimming function that LED integral control circuit has PWM and 0-10V.
Described Equations of The Second Kind directly drives in LED integral control circuit and is configured with Anti-surging structure respectively with outer.
The described first kind is directly driven in LED integral control circuit and is configured with Anti-surging structure respectively with outer.
Some described high direct voltage driving LED modules in parallel in described high-voltage output end VH and with reference to hold between GND.
In the utility model, three phase full wave rectification unit carries out full-wave rectification to the three phase mains of electric main, obtains the high direct voltage VH containing certain ripple component, this high direct voltage as the power supply directly driving LED light device,
Thus make the utility model possess following positive effect:
1) there is the features such as LED drive power efficiency is high, power factor is high, harmonic distortion is little, reliability is high, light stroboscopic resistant characteristic is good, cost is low.
2) high direct voltage drives and directly drives LED light device, and the electric current flowing through the electric wire of roadway lighting system is little especially, and cable cost is reduced greatly.
3) realize removing power supply, reduce driving power quality problem.LED illumination can be realized by interchange Direct driver integral control circuit and a small amount of peripheral components to drive.
4) extend the life-span of LED, reduce the cost of LED simultaneously, be conducive to promoting the application of directly driving LED light device, contribute for energy-conservation.
Further, the utility model also utilizes single three phase full wave rectification unit to be that single LED light device of directly driving carries out commutation supply voltage, thus makes three phase line phase equilibriums of powering to LED light device, high for electrical stability; Every lighting device is equipped with a three phase rectifier unit, also make unit to bear capacity little; In original roadnet, be generally the circuit of three-phase and four-line, without the need to again planning circuit after employing the utility model; The utility model makes wiring simplify, and saves construction cost; Existing device replacement cost utility model charged directly driven LED light device, and cable arranges and also facilitates.
Again furthermore, the utility model utilizes control system to carry out the control of conducting and disconnection to controlled LED particle circuit unit, with the change utilizing the change of load to cater to alternating current curve, such that electric current is more stable possesses following useful effect:
1) drive efficiency is high;
2) dimming function can be with;
3) excess temperature is with, overvoltage, overcurrent protection;
4) there is no electric capacity, inductance, disturb without EMI.
Accompanying drawing explanation
Fig. 1 is the circuit diagram that the utility model embodiment 1 to 4 mesohigh directly drives LED illumination System;
Fig. 2 is the utility model embodiment 1 and the circuit diagram of LED circuit unit module in embodiment 2;
Fig. 3 is the utility model embodiment 3 and the connection diagram of high direct voltage driving LED module in embodiment 4;
Fig. 4 is the layout schematic diagram of control system in the utility model embodiment 1 and embodiment 3;
Fig. 5 is the layout schematic diagram of control system in the utility model embodiment 2 and embodiment 4.
Embodiment
Drive LED illumination System by four embodiments to the high voltage direct that the utility model provides below with reference to Fig. 1 to Fig. 5 to be described in detail, it is the utility model four optional embodiments, can think, those skilled in the art, in the scope not changing the utility model spirit and content, can modify to it and polish.
Please refer to Fig. 1, the high voltage direct that all embodiments of the present utility model provide drives LED illumination System, included at least two three phase full wave rectification unit and at least two directly drive LED light device, the input side of each described three phase full wave rectification unit all connects three-phase alternating current, the outlet side of each described three phase full wave rectification unit connects one respectively and describedly directly drives LED light device, and the outlet side of described three phase full wave rectification unit by DC high-voltage output end VH with reference to hold GND to be connected described LED light device;
In the utility model, three phase full wave rectification unit carries out full-wave rectification to the three phase mains of electric main, obtains the high direct voltage VH containing certain ripple component, this high direct voltage as the power supply directly driving LED light device,
Thus make the utility model possess following positive effect:
1) there is the features such as LED drive power efficiency is high, power factor is high, harmonic distortion is little, reliability is high, light stroboscopic resistant characteristic is good, cost is low.
2) high direct voltage drives and directly drives LED light device, and the electric current flowing through the electric wire of roadway lighting system is little especially, and cable cost is reduced greatly.
3) realize removing power supply, reduce driving power quality problem.LED illumination can be realized by interchange Direct driver integral control circuit and a small amount of peripheral components to drive.
4) extend the life-span of LED, reduce the cost of LED simultaneously, be conducive to promoting the application of directly driving LED light device, contribute for energy-conservation.
Further, the utility model also utilizes single three phase full wave rectification unit to be that single LED light device of directly driving carries out commutation supply voltage, thus makes three phase line phase equilibriums of powering to LED light device, high for electrical stability; Every lighting device is equipped with a three phase rectifier unit, also make unit to bear capacity little; In original roadnet, be generally the circuit of three-phase and four-line, without the need to again planning circuit after employing the utility model; The utility model makes wiring simplify, and saves construction cost; Existing device replacement cost utility model charged directly driven LED light device, and cable arranges and also facilitates.
In all embodiments of the present utility model, each described normal bright LED particle circuit unit directly driving LED light device and all include controlled LED particle circuit unit and connect with it, described controlled LED particle circuit unit is controlled by control system, thus makes the LED particle in described controlled LED particle circuit unit realize conducting and short circuit.When the switch that closed pair is answered, corresponding controlled LED particle circuit unit short circuit can be made, open, then can realize the conducting of corresponding controlled LED particle circuit unit circuit.
The utility model utilizes control system to carry out the control of conducting and disconnection to controlled LED particle circuit unit, with the change utilizing the change of load to cater to alternating current curve, makes electric current more stable, can be played the effect of constant current by the change of LED quantity.The utility model also possesses following useful effect:
1) drive efficiency is high;
2) dimming function can be with;
3) excess temperature is with, overvoltage, overcurrent protection;
4) there is no electric capacity, inductance, disturb without EMI.
Embodiment 1
Please refer to Fig. 1, Fig. 2 and Fig. 4, the present embodiment has separately done concrete improvement on the basis that above basic scheme describes.
In the present embodiment, described LED light device of directly driving comprises a substrate and is located at the some LED circuit unit modules on described substrate, some described LED circuit unit modules are held between GND with being parallel to described high-voltage output end VH and reference, and each lighting device needs to select LED circuit unit module number in parallel according to power.Each described LED circuit unit module includes controlled LED particle circuit unit described at least one.
Described LED circuit unit module further comprises normal bright LED particle circuit unit, and described normal bright LED particle circuit unit is connected with described controlled LED particle circuit unit.The introducing of normal bright LED particle circuit unit, contributes to eliminating stroboscopic, reaches more stable illumination light.If controlled LED particle circuit unit is not less than two, then it is also cascaded.Described normal bright LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.Same, described controlled LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.
Visible, in the present embodiment, controlled LED particle circuit unit and normal bright LED particle circuit unit essential difference are that whether introducing control system controls.It is to be noted; in the utility model; only can not define normal bright LED particle circuit unit and controlled LED particle circuit unit from circuit; but should from the angle of effect; in other alternative-embodiments; if be configured with the effect that LED particle circuit unit that the first kind directly drives LED integral control circuit keeps Chang Liang from start to finish; also can be regarded as normal bright LED particle circuit unit, integral control circuit can not be configured with because of it and just think it not in protection range of the present utility model simply.
In the present embodiment, described control system comprises some first kind containing switching function and directly drives LED integral control circuit, each described LED circuit unit module configuration at least two described first kind directly drive LED integral control circuit, and each described first kind is directly driven LED integral control circuit and connected with controlled LED particle circuit unit described at least one in corresponding described LED circuit unit module; Certainly, the different first kind is directly driven the controlled LED particle circuit unit that LED integral control circuit connects and be there is no coincidence; Preferred scheme can be further: it is in parallel with a described controlled LED particle circuit unit that each described first kind directly drives LED integral control circuit, to realize the control to this controlled LED particle circuit unit;
The described first kind is directly driven LED integral control circuit and is at least configured to realize following functions:
The information of response input, controls conducting and the short circuit of LED particle in controlled LED particle circuit unit.
Further, the described first kind is directly driven LED integral control circuit and is also configured to realize following functions:
Transient current according to load in described LED circuit unit module controls the conducting of LED particle in described controlled LED particle circuit unit and short circuit, and its value is remained in a particular range preset.The effect of constant current can be played by the change of LED quantity.Further, the described first kind directly drives the dimming function that LED integral control circuit has PWM and 0-10V.The described first kind is directly driven in LED integral control circuit and is configured with Anti-surging structure respectively with outer; Described Equations of The Second Kind directly drives in LED integral control circuit and is configured with Anti-surging structure respectively with outer, also can be referred to as Surge Protector surge protector, lightning arrester etc.
In addition, compared with traditional integral control circuit, the present embodiment considers the difference of single-phase voltage and three-phase when configuring, preferred disposition the high voltage bearing first kind can directly drive LED integral control circuit, so the integral control circuit that in prior art, those are applied to single phase circuit can not use wherein.
LED light device is configured to the lamp of justifying format further by the present embodiment on the basis of the utility model basic scheme, and utilize multiple first kind directly to drive LED integral control circuit to control each controlled LED particle circuit unit in a distributed manner, this integral control circuit configuration can do higher power, integral control circuit heat distribution is even, and stability is also high.
Embodiment 2
Please refer to Fig. 1, Fig. 2 and Fig. 5, the present embodiment has also separately done some concrete improvement on the basis that basic scheme describes.
The present embodiment and embodiment 1 similar be, described LED light device of directly driving comprises a substrate and is located at the some LED circuit unit modules on described substrate, some described LED circuit unit modules are held between GND with being parallel to described high-voltage output end VH and reference, and each lighting device needs to select LED circuit unit module number in parallel according to power.Each described LED circuit unit module includes controlled LED particle circuit unit described at least one.Described LED circuit unit module further comprises normal bright LED particle circuit unit, and described normal bright LED particle circuit unit is connected with described controlled LED particle circuit unit.Described normal bright LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.Same, described controlled LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.In simple terms, the present embodiment also uses the lamp of justifying formula as shown in Figure 2.
The main distinction of the present embodiment and embodiment 1 is in the control to controlled LED particle circuit unit.
Please refer to Fig. 5, in the present embodiment, the quantity of the controlled LED particle circuit unit of each described LED circuit unit module is at least two, certainly, it is connect mutually, is pointed out that, although Fig. 2 only schematically indicates a controlled LED particle circuit unit, because of its just schematically display, should think, no matter the controlled LED particle circuit unit of any amount is all the present embodiment and the object described by the utility model.
Described control system comprises the Equations of The Second Kind with switching function and directly drives LED integral control circuit, and all described controlled LED particle circuit unit in a described LED circuit unit module is all connected to a described Equations of The Second Kind and directly drives on LED integral control circuit; That is, in the present embodiment, have employed the centralized control of controlled LED particle circuit unit in module,
Described Equations of The Second Kind directly drives LED integral control circuit and is at least configured to realize following functions:
The information of response input, controls conducting and the short circuit of LED particle in controlled LED particle circuit unit.
Further, described Equations of The Second Kind directly drives LED integral control circuit and is also configured to realize following functions:
Transient current according to load in described LED circuit unit module or high direct voltage driving LED module controls the conducting of LED particle in described controlled LED particle circuit unit and short circuit.Its value is remained in a particular range preset.
In the present embodiment, be also configured with sampling resistor Rs, it is the current sample section that Equations of The Second Kind directly drives LED integral control circuit, can in order to regulate the electric current of particle string; When system power is high time, the MOS switch that Equations of The Second Kind directly drives in LED integral control circuit can be out external, makes integral control circuit obtain stability higher; Equations of The Second Kind directly drives LED integral control circuit can with the dimming function of PWM and 0-10V; Visible, described Equations of The Second Kind directly drives LED integral control circuit and includes MOS switch and control module, described control module is connected with a controlled LED particle circuit unit respectively by a MOS switch, and sampling resistor Rs two ends connect described control module and GND respectively.The described first kind is directly driven in LED integral control circuit and is configured with Anti-surging structure respectively with outer; Described Equations of The Second Kind directly drives in LED integral control circuit and is configured with Anti-surging structure respectively with outer, also can be referred to as Surge Protector surge protector, lightning arrester etc.
Adopt the mode of this centerized fusion, its components and parts adopted are less, and the probability of inefficacy is also low.In the same manner as in Example 1, the present embodiment considers the difference of single-phase voltage and three-phase voltage when configuring, preferred disposition can directly drive LED integral control circuit by high voltage bearing Equations of The Second Kind, so the integral control circuit that in prior art, those are applied to single phase circuit can not use wherein.
Embodiment 3
Please refer to Fig. 1, Fig. 2 and Fig. 5, the present embodiment has also separately done some concrete improvement on the basis that basic scheme describes.
In the present embodiment, described LED light device of directly driving comprises at least two high direct voltage driving LED modules, each high direct voltage driving LED module correspondence is arranged on one independently on substrate, and each described high direct voltage driving LED module includes controlled LED particle circuit unit described at least one.Some described high direct voltage driving LED modules in parallel in described high-voltage output end VH and with reference to hold between GND.
Similar to embodiment 1, described high direct voltage driving LED module further comprises normal bright LED particle circuit unit, and described normal bright LED particle circuit unit is connected with described controlled LED particle circuit unit.The introducing of normal bright LED particle circuit unit, contributes to eliminating stroboscopic, reaches more stable illumination light.If controlled LED particle circuit unit is not less than two, then it is also cascaded.Described normal bright LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.Same, described controlled LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.
Visible, controlled LED particle circuit unit and normal bright LED particle circuit unit essential difference are that whether introducing control system controls.Similar to embodiment 1, in the present embodiment, described control system comprises some first kind containing switching function and directly drives LED integral control circuit, each described high direct voltage driving LED module configuration at least two described first kind directly drive LED integral control circuit, and each described first kind is directly driven LED integral control circuit and connected with controlled LED particle circuit unit described at least one in corresponding described high direct voltage driving LED module; Certainly, the different first kind is directly driven the controlled LED particle circuit unit that LED integral control circuit connects and be there is no coincidence, preferred scheme can be further: it is in parallel with a described controlled LED particle circuit unit that each described first kind directly drives LED integral control circuit, to realize the control to this controlled LED particle circuit unit;
The described first kind is directly driven LED integral control circuit and is at least configured to realize following functions:
The information of response input, controls conducting and the short circuit of LED particle in controlled LED particle circuit unit.
Further, the described first kind is directly driven LED integral control circuit and is also configured to realize following functions:
Transient current according to load in described high direct voltage driving LED module controls the conducting of LED particle in described controlled LED particle circuit unit and short circuit.Its value is remained in a particular range preset.The effect of constant current can be played by the change of LED quantity.Further, the described first kind directly drives the dimming function that LED integral control circuit has PWM and 0-10V.The described first kind is directly driven in LED integral control circuit and is configured with Anti-surging structure respectively with outer; Described Equations of The Second Kind directly drives in LED integral control circuit and is configured with Anti-surging structure respectively with outer, also can be referred to as Surge Protector surge protector, lightning arrester etc.
In addition, compared with directly driving LED integral control circuit with traditional first kind, the present embodiment considers the difference of single-phase voltage and three-phase voltage when configuring, preferred disposition the high voltage bearing first kind can directly drive LED integral control circuit, so the integral control circuit that in prior art, those are applied to single phase circuit can not use wherein.
LED light device is configured to modular lamp further by the present embodiment on the basis of the utility model basic scheme, the lighting system of LED illumination System can be enriched by the combination change between module, simultaneously, modular lamp its all there is some superiority at heat dispersion, power, fit on, the utility model also utilizes multiple first kind directly to drive LED integral control circuit and controls each controlled LED particle circuit unit in a distributed manner, this integral control circuit configuration can do higher power, integral control circuit heat distribution is even, and stability is also high.
Embodiment 4
Please refer to Fig. 1, Fig. 3 and Fig. 5, the present embodiment has also separately done some concrete improvement on the basis that basic scheme describes.
Similar with embodiment 3, in the present embodiment, described LED light device of directly driving comprises at least two high direct voltage driving LED modules, each high direct voltage driving LED module correspondence is arranged on one independently on substrate, and each described high direct voltage driving LED module includes controlled LED particle circuit unit described at least one.Some described high direct voltage driving LED modules in parallel in described high-voltage output end VH and with reference to hold between GND.
Described high direct voltage driving LED module further comprises normal bright LED particle circuit unit, and described normal bright LED particle circuit unit is connected with described controlled LED particle circuit unit.If controlled LED particle circuit unit is not less than two, then it is also cascaded.Described normal bright LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.Same, described controlled LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.
The main distinction of the present embodiment and embodiment 3 is in the control to controlled LED particle circuit unit.
Please refer to Fig. 5, in the present embodiment, the quantity of the controlled LED particle circuit unit of each described high direct voltage driving LED module is at least two, certainly, it is series connection mutually, described control system comprises an Equations of The Second Kind with switching function and directly drives LED integral control circuit, and all described controlled LED particle circuit unit in a described high direct voltage driving LED module is all connected to a described Equations of The Second Kind and directly drives on LED integral control circuit; That is, in the present embodiment, have employed the centralized control of controlled LED particle circuit unit in module.
Described Equations of The Second Kind directly drives LED integral control circuit and is at least configured to realize following functions:
The information of response input, controls conducting and the short circuit of LED particle in controlled LED particle circuit unit.
Further, described Equations of The Second Kind directly drives LED integral control circuit and is also configured to realize following functions:
Transient current according to load in described high direct voltage driving LED module controls the conducting of LED particle in described controlled LED particle circuit unit and short circuit.Its value is remained in a particular range preset.
In the present embodiment, be also configured with sampling resistor Rs, it is the current sample section that Equations of The Second Kind directly drives LED integral control circuit, can in order to regulate the electric current of particle string; When system power is high time, the MOS switch that Equations of The Second Kind directly drives in LED integral control circuit can be out external, makes the stability of integral control circuit higher; Equations of The Second Kind directly drives LED integral control circuit can with the dimming function of PWM and 0-10V; Visible, described Equations of The Second Kind directly drives LED integral control circuit and includes MOS switch and control module, described control module is connected with a controlled LED particle circuit unit respectively by a MOS switch, and sampling resistor Rs two ends connect described control module and GND respectively.
The described first kind is directly driven in LED integral control circuit and is configured with Anti-surging structure respectively with outer; Described Equations of The Second Kind directly drives in LED integral control circuit and is configured with Anti-surging structure respectively with outer, also can be referred to as Surge Protector surge protector, lightning arrester etc.
Adopt the mode of this centerized fusion, its components and parts adopted are less, and the probability of inefficacy is also low.The same with embodiment before, the present embodiment considers the difference of single-phase voltage and three-phase voltage when configuring, preferred disposition can directly drive LED integral control circuit by high voltage bearing Equations of The Second Kind, so the Equations of The Second Kind that in prior art, those are applied to single phase circuit directly drives LED integral control circuit and can not use wherein.
Above in all embodiments, lightning Protection Design can be contained, also can not contain lightning Protection Design.
In sum, the utility model has following beneficial effect:
1, LED drive power efficiency is high, power factor is high, harmonic distortion is little, reliability is high, light stroboscopic resistant characteristic is good, cost is low.
2, lighting device is high direct voltage driving LED lighting device, and the electric current flowing through the electric wire of illuminator is little especially, and cable cost is reduced greatly.
3, LED illumination can be realized by interchange Direct driver integral control circuit and a small amount of peripheral components to drive.Power supply is removed in realization, stops driving power quality problem, reduces the cost of the whole lamp of LED, extends the life-span of the whole lamp of LED.Be conducive to the application promoting LED light device, contribute for energy-conservation.
4, to three of power illuminating device phase line phase equilibriums, high for electrical stability; Every lighting device is equipped with a three phase rectifier module, module to bear capacity little.
5, in original illuminator, being generally the circuit of three-phase and four-line, adopting the utility model without the need to again planning circuit.
6, wiring is simplified, and saves construction cost.
7, be if desired replaced with the LED light device of charged, cable is arranged conveniently.
Claims (12)
1. a high voltage direct drives LED illumination System, it is characterized in that: include at least two three phase full wave rectification unit and at least two directly drive LED light device, the input side of each described three phase full wave rectification unit all connects three-phase alternating current, the outlet side of each described three phase full wave rectification unit connects one respectively and describedly directly drives LED light device, and the outlet side of described three phase full wave rectification unit by DC high-voltage output end VH with reference to hold GND to be connected described LED light device;
Each described normal bright LED particle circuit unit directly driving LED light device and all include controlled LED particle circuit unit and connect with it, described controlled LED particle circuit unit is controlled by control system, thus makes the LED particle in described controlled LED particle circuit unit realize conducting and short circuit.
2. high voltage direct as claimed in claim 1 drives LED illumination System, it is characterized in that: described LED light device of directly driving comprises a substrate and is located at the some LED circuit unit modules on described substrate, some described LED circuit unit modules are held between GND with being parallel to described high-voltage output end VH and reference, and each described LED circuit unit module includes controlled LED particle circuit unit described at least one and normal bright LED particle circuit unit.
3. high voltage direct as claimed in claim 1 drives LED illumination System, it is characterized in that: described LED light device of directly driving comprises at least two high direct voltage driving LED modules, each high direct voltage driving LED module correspondence is arranged on one independently on substrate, and each described high direct voltage driving LED module includes controlled LED particle circuit unit described at least one and normal bright LED particle circuit unit.
4. high voltage direct as claimed in claim 3 drives LED illumination System, it is characterized in that: described normal bright LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.
5. high voltage direct as claimed in claim 3 drives LED illumination System, it is characterized in that: described controlled LED particle circuit unit comprises a LED particle string electronic circuit or at least two mutual LED particle string electronic circuits in parallel.
6. high voltage direct drives LED illumination System as claimed in claim 2 or claim 3, it is characterized in that: described control system comprises some first kind containing switching function and directly drives LED integral control circuit,
Each described LED circuit unit module or high direct voltage driving LED module configuration at least two described first kind directly drive LED integral control circuit, and each described first kind is directly driven LED integral control circuit and connected with controlled LED particle circuit unit described at least one in corresponding described LED circuit unit module or high direct voltage driving LED module;
The described first kind is directly driven LED integral control circuit and is at least configured to realize following functions:
The information of response input, controls conducting and the short circuit of LED particle in controlled LED particle circuit unit.
7. high voltage direct drives LED illumination System as claimed in claim 2 or claim 3, it is characterized in that: the quantity of the controlled LED particle circuit unit in each described LED circuit unit module or high direct voltage driving LED module is at least two, described control system comprises the Equations of The Second Kind with switching function and directly drives LED integral control circuit, and all described controlled LED particle circuit unit in a described LED circuit unit module or high direct voltage driving LED module is all connected to a described Equations of The Second Kind and directly drives on LED integral control circuit;
Described Equations of The Second Kind directly drives LED integral control circuit and is at least configured to realize following functions:
The information of response input, controls conducting and the short circuit of LED particle in controlled LED particle circuit unit.
8. high voltage direct as claimed in claim 7 drives LED illumination System, it is characterized in that: described Equations of The Second Kind directly drives LED integral control circuit and is also configured to realize following functions:
Transient current according to load in described LED circuit unit module or high direct voltage driving LED module controls the conducting of LED particle in described controlled LED particle circuit unit and short circuit.
9. high voltage direct as claimed in claim 6 drives LED illumination System, it is characterized in that: the described first kind is directly driven LED integral control circuit and is also configured to realize following functions:
Transient current according to load in described LED circuit unit module or high direct voltage driving LED module controls the conducting of LED particle in described controlled LED particle circuit unit and short circuit.
10. high voltage direct as claimed in claim 7 drives LED illumination System, it is characterized in that: described Equations of The Second Kind directly drives the dimming function that LED integral control circuit has PWM and 0-10V.
11. high voltage directs as claimed in claim 6 drive LED illumination System, it is characterized in that: the described first kind directly drives the dimming function that LED integral control circuit has PWM and 0-10V.
12. high voltage directs as claimed in claim 3 drive LED illumination System, it is characterized in that: some described high direct voltage driving LED modules in parallel in described high-voltage output end VH and with reference to hold between GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669283.4U CN204145852U (en) | 2014-11-11 | 2014-11-11 | High voltage direct drives LED illumination System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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