CN202231926U - High-power LED street lamp control circuit and street lamp - Google Patents
High-power LED street lamp control circuit and street lamp Download PDFInfo
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- CN202231926U CN202231926U CN2011203745747U CN201120374574U CN202231926U CN 202231926 U CN202231926 U CN 202231926U CN 2011203745747 U CN2011203745747 U CN 2011203745747U CN 201120374574 U CN201120374574 U CN 201120374574U CN 202231926 U CN202231926 U CN 202231926U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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Abstract
The utility model provides a high-power LED street lamp control circuit and belongs to the field of street lamp control circuits. The control circuit comprises an AC voltage rectification filter circuit, a PFC (Power Factor Correction) system circuit, an LLC resonance and conversion circuit, a voltage and current monitoring system circuit, a secondary rectification filter circuit, a constant-current driving unit circuit and an LED array circuit. The utility model also provides a street lamp adopting the control circuit. The control circuit has the advantages of simple structure, simple and convenient process and low cost. Due to the voltage and current monitoring system, the control circuit has voltage stabilizing automatic protection function, current stabilizing automatic protection function, short-circuit automatic protection function, open-circuit automatic protection function, and power supply stabilization protect function. Therefore, the control circuit is particularly suitable for the lighting control of the high-power LED street lamp, and not only the lighting effect of the high-power LED can be played to the utmost, but also the heating of the high-power LED street lamp and light attenuation can be controlled, thereby prolonging the service life of the LED street lamp control circuit with the voltage and current monitoring system and the high-power LED.
Description
Technical field
The utility model relates to a kind of streetlight control circuit, is specifically related to have the LED streetlight control circuit of supervisory control system and the street lamp that adopts this control circuit.
Background technology
The street lamp general reference provides the light fixture of road or traffic lighting.The infield is common in the one-sided or both sides of road.As the one of which by light fixture, electrical equipment, light source, lamp stand, arm, ring flange, associated components such as basic built-in fitting form a whole.
Light source in the existing street lamp generally adopts high-pressure sodium lamp, adopts high-pressure sodium lamp to have stronger luminous efficiency, has than remarkable energy saving effect with respect to conventional lamp source.But along with light-emitting diode (Light Emitting Diode; Hereinafter to be referred as LED) technological development and maturation; LED has luminous efficiency height, long service life, advantage such as pollution-free, makes that the luminous efficiency of existing high-pressure sodium lamp is low, useful life is short and defective such as energy consumption height exposes undoubtedly.
The technology that present great power LED luminous flux reaches 80lm/w is very stable; 100lm/w is also popularizing market; Have much the trend that substitutes present high-power incandescent lamp, become the main flow device of illuminating product especially gradually, the LED illumination epoch are come into people's life gradually.
But the bottleneck that great power LED popularizes is the defective that present control circuit board exists: some control circuit is noted voltage stabilizing; Some control circuit is then paid attention to the stable of electric current; Some control circuit has then been ignored a certain LED short circuit that great power LED in use occurs through regular meeting, has been opened circuit; Influence entire circuit, the light that illuminating product is sent is inhomogeneous, but also has shortened the useful life of the control circuit and the great power LED of illuminating product greatly.
The utility model content
The utility model is directed against the existing existing defective of great power LED control circuit, and a kind of novel high-power LED street lamp control circuit is provided, to overcome the above-mentioned defective that prior art exists.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of high-power LED street lamp control circuit; Said control circuit comprises ac voltage rectifier filter circuit, PFC circuit system, LLC resonance and translation circuit, voltage and current monitoring system circuit, secondary current rectifying and wave filtering circuit, constant current driving unit circuit and led array circuit; The output of said ac voltage rectifier filter circuit connects the input of PFC circuit system; The output of said PFC circuit system connects the input of LLC resonance and translation circuit; The output of said LLC resonance and translation circuit connects the input of secondary current rectifying and wave filtering circuit; The output of said secondary current rectifying and wave filtering circuit connects the input of constant current driving unit circuit, and the output of said constant current driving unit circuit connects the input of led array circuit.
In the preferred version of the utility model; Said control circuit also comprises voltage and current monitoring system circuit; Said voltage is connected the output of secondary current rectifying and wave filtering circuit and ac voltage rectifier filter circuit with the input of current monitoring system circuit; Its output connects PFC circuit system and LLC resonance and translation circuit respectively; Form detection, protection and supervisory control system module, voltage, the electric current of input constant current driving unit are monitored in real time, make voltage, the current stabilization of input constant current driving unit.
As second purpose of the utility model, the utility model also provides a kind of street lamp, and said street lamp comprises lamp body, LED light fixture, also comprises above-mentioned high-power LED street lamp control circuit in the said street lamp.
The high-power LED street lamp control circuit that the utility model provides, simple in structure, production technology is easy, uses element few, patches conveniently, and is therefore with low cost.Have voltage stabilizing, current stabilization because of this LED streetlight control circuit that has voltage, current monitoring system again; Short circuit, the protection automatically of opening circuit; The stable protection of power supply; Be specially adapted to the light emitting control of high-power LED street lamp, not only can bring into play the light efficiency of great power LED to greatest extent, can also effectively control the heating and the light decay of high-power LED street lamp.
Moreover, make this LED streetlight control circuit that has voltage, current monitoring system and the long service life of great power LED.
Description of drawings
Further specify the utility model below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Fig. 1 shows the structure of the LED streetlight control circuit that has voltage, current monitoring system that the utility model embodiment provides, and for the ease of explanation, only shows the part relevant with the utility model embodiment.
As shown in Figure 1; The high-power LED street lamp control circuit that the utility model provides comprises: ac voltage rectifier filter circuit 1, PFC circuit system 2, LLC resonance and translation circuit 3, voltage and current monitoring system circuit 4, secondary current rectifying and wave filtering circuit 5, constant current driving unit circuit 6 and led array circuit 7.
The structural principle that has the circuit 1～7 that relates in the LED streetlight control circuit of voltage, current monitoring system is to design according to existing known technology, does not give unnecessary details here.
The output of ac voltage rectifier filter circuit 1 connects the input of PFC circuit system 2; The output of PFC circuit system 2 connects the input of LLC resonance and translation circuit 3; The output of LLC resonance and translation circuit 3 connects secondary current rectifying and wave filtering circuit 5; The output of secondary current rectifying and wave filtering circuit 5 connects constant current element circuit 6, and the output of constant current driving unit circuit 6 connects led array circuit 7.
The output of the output of ac voltage rectifier filter circuit 1 and secondary current rectifying and wave filtering circuit 5 is connected voltage and electric current prison circuit system 4 inputs respectively.After voltage and current monitoring system circuit 4 receive the change letter of the voltage of the voltage change signal of current rectifying and wave filtering circuit 1 and 5 outputs of secondary current rectifying and wave filtering circuit; Be sent to control unit and LLC resonance and translation circuit 3 in the PFC circuit system 2 respectively, guarantee the output voltage stabilization of the two.PFC circuit system 2, LLC resonance and translation circuit 3 and voltage and current monitoring system circuit 4 form detection, protection and supervisory control system modules jointly thus; Voltage, electric current to input constant current unit are monitored in real time, and the voltage of input constant current element circuit, circuit are stablized.
On the basis of such scheme; The utility model provides a kind of street lamp that adopts above-mentioned high-power LED street lamp control circuit; The same lamp body, the LED light fixture of comprising of this street lamp with existing street lamp, but it adopts above-mentioned high-power LED street lamp control circuit to control corresponding LED light fixture.
This operation principle that has the LED streetlight control circuit of voltage, current monitoring system is:
Alternating current (220V) connects ac voltage rectifier filter circuit 1 input, and current rectifying and wave filtering circuit 1 after PFC circuit system 2 is proofreaied and correct control, is realized power factor correction after the alternating current of importing (220V) is carried out the rectifying and wave-filtering first time; And convert the dc pulse moving voltage of current rectifying and wave filtering circuit 1 rectification output to high direct voltage voltage and be input to LLC resonance and translation circuit 3.
Translation circuit in the LLC carries out the DC-AC conversion, is transformed into interchange low-frequency voltage (48V) to high direct voltage voltage and is input to secondary current rectifying and wave filtering circuit 5 inputs, forms (48V) direct voltage through the secondary rectifying and wave-filtering.
(48V) direct voltage input constant current driving unit circuit 6 of secondary current rectifying and wave filtering circuit 5 outputs, driving LED array circuit 7.
Constant current driving unit provides a plurality of constant-current sources by a constant pressure source; (LED is the low-voltage direct device to one group of LED coupled in series of each constant current unit individual drive; The voltage that drives single LEDs is safe voltage), combination is flexible, when a paths of LEDs is out of order; Can not influence the work of other LED, guarantee that to greatest extent LED also can safe operation when abnormal conditions occurring.
After the voltage change signal reception of voltage and current monitoring system circuit 4, be sent to the control unit in the PFC circuit system 2, guarantee the stable output of PFC system voltage ac voltage rectifier filter circuit 1; Voltage and current monitoring system circuit 4 also are transferred to the control unit in LLC resonance and the translation circuit 3 with the change signal of the voltage of secondary current rectifying and wave filtering circuit 5 output simultaneously, impel the resonance frequency in the LLC to change, thus (48V) the stable output of direct voltage.
More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (3)
1. high-power LED street lamp control circuit; It is characterized in that; Said control circuit comprises ac voltage rectifier filter circuit, PFC circuit system, LLC resonance and translation circuit, voltage and current monitoring system circuit, secondary current rectifying and wave filtering circuit, constant current driving unit circuit and led array circuit; The output of said ac voltage rectifier filter circuit connects the input of PFC circuit system; The output of said PFC circuit system connects the input of LLC resonance and translation circuit; The output of said LLC resonance and translation circuit connects the input of secondary current rectifying and wave filtering circuit, and the output of said secondary current rectifying and wave filtering circuit connects the input of constant current driving unit circuit, and the output of said constant current driving unit circuit connects the input of led array circuit.
2. a kind of high-power LED street lamp control circuit according to claim 1; It is characterized in that; Said control circuit also comprises voltage and current monitoring system circuit; Said voltage is connected the output of secondary current rectifying and wave filtering circuit and ac voltage rectifier filter circuit with the input of current monitoring system circuit, its output connects PFC circuit system and LLC resonance and translation circuit respectively, forms detection, protection and supervisory control system module; Voltage, electric current to the input constant current driving unit are monitored in real time, make voltage, the current stabilization of input constant current driving unit.
3. street lamp, said street lamp comprises lamp body, LED light fixture, it is characterized in that, also comprises claim 1 or 2 described high-power LED street lamp control circuits in the said street lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203745747U CN202231926U (en) | 2011-09-30 | 2011-09-30 | High-power LED street lamp control circuit and street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203745747U CN202231926U (en) | 2011-09-30 | 2011-09-30 | High-power LED street lamp control circuit and street lamp |
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| Publication Number | Publication Date |
|---|---|
| CN202231926U true CN202231926U (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203745747U Expired - Fee Related CN202231926U (en) | 2011-09-30 | 2011-09-30 | High-power LED street lamp control circuit and street lamp |
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| Country | Link |
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| CN (1) | CN202231926U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751771A (en) * | 2012-06-26 | 2012-10-24 | 苏州舜唐新能源电控设备有限公司 | Control method of electric car-mounted charging device |
| CN103106800A (en) * | 2012-12-29 | 2013-05-15 | 上海澳星照明电器制造有限公司 | Driving power circuit of traffic light |
| CN103532391A (en) * | 2012-07-06 | 2014-01-22 | 电力系统技术有限公司 | Controller for a power converter and method of operating the same |
| CN103582261A (en) * | 2013-11-08 | 2014-02-12 | 桂林机床电器有限公司 | LED driving circuit |
| CN105873296A (en) * | 2016-05-27 | 2016-08-17 | 合肥工业大学 | LED electric light source device based on optimal luminous efficacy and service life and design method of LED electric light source device |
-
2011
- 2011-09-30 CN CN2011203745747U patent/CN202231926U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751771A (en) * | 2012-06-26 | 2012-10-24 | 苏州舜唐新能源电控设备有限公司 | Control method of electric car-mounted charging device |
| CN103532391A (en) * | 2012-07-06 | 2014-01-22 | 电力系统技术有限公司 | Controller for a power converter and method of operating the same |
| CN103106800A (en) * | 2012-12-29 | 2013-05-15 | 上海澳星照明电器制造有限公司 | Driving power circuit of traffic light |
| CN103582261A (en) * | 2013-11-08 | 2014-02-12 | 桂林机床电器有限公司 | LED driving circuit |
| CN105873296A (en) * | 2016-05-27 | 2016-08-17 | 合肥工业大学 | LED electric light source device based on optimal luminous efficacy and service life and design method of LED electric light source device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20130930 |