CN202197443U - LED (Light-Emitting Diode) street lamp driving power supply - Google Patents
LED (Light-Emitting Diode) street lamp driving power supply Download PDFInfo
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- CN202197443U CN202197443U CN 201120356819 CN201120356819U CN202197443U CN 202197443 U CN202197443 U CN 202197443U CN 201120356819 CN201120356819 CN 201120356819 CN 201120356819 U CN201120356819 U CN 201120356819U CN 202197443 U CN202197443 U CN 202197443U
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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 discloses an LED (Light-Emitting Diode) street lamp driving power supply. Filtering rectification of the LED street lamp driving power supply and a voltage output end (VOUT1) of a PFC (Power Factor Correction) circuit are connected with a voltage input end (VIN2) of a switching power supply circuit, a voltage output end (VOUT2) of the switching power supply circuit is connected with a voltage input end (VIN3) of an internal power supply circuit and a voltage input end (VIN4) of a driving and control circuit, two voltage output ends (VOUT3) and (VOUT4) of the internal power supply circuit are respectively of a DC12V power supply output end and a DC5V power supply output end, and the driving and control circuit is provided with two external programming unit ends (BC1) and (BC2) and two external data downloading equipment ends (XZ1) and (XZ2). Each string of LEDs is driven separately, so as to ensure the working current of each string of LEDs to be always kept constant at a rated value or a given value. The PWN (pulse width modification) is utilized for dimming. The conversion efficiency reaches up to over 88%. The power factor reaches up to more than 95%.
Description
Technical field
The utility model relates to a kind of LED streetlamp driving power supply.
Background technology
Known LED streetlamp driving power supply LED that street lamp is all concentrates together after through connection in series-parallel and drives.Use the LED of this power drives street lamp, the electric current of LED of causing respectively going here and there does not wait non-constant yet, causes respectively going here and there the LED luminance nonuniformity then, even causes the bigger LED string excessive of electric current and serious light decay.
Summary of the invention
Respectively go here and there the electric current of LED and do not wait also non-constantly in order to overcome known LED street lamp, cause respectively going here and there the LED luminance nonuniformity then, even cause the bigger LED string excessive of electric current and the defective of serious light decay, the utility model provides a kind of LED streetlamp driving power supply.This power supply is guaranteed that the operating current of each string LED is not only constant, and is adjusted to rated value automatically each string LED drive.In addition, this power supply can also transfer stream to realize light modulation then at times.
The technical scheme of the utility model is:
This LED streetlamp driving power supply is connected to form by filter rectification and pfc circuit, switching power circuit, interior power supply circuit, driving and control circuit; Two voltage input ends (VIN1-1) of filter rectification and pfc circuit and (VIN1-2) join with the phase line and the center line of electrical network single phase poaer supply respectively; The voltage output end of filter rectification and pfc circuit (VOUT1) connects the voltage input end (VIN2) of switching power circuit; The voltage output end of switching power circuit (VOUT2) connect interior power supply circuit voltage input end (VIN3), connect the voltage input end (VIN4) that drives with control circuit; Two voltage output ends (VOUT3) of interior power supply circuit and (VOUT4) be respectively DC12V and DC5V power output end, drive with control circuit be provided with two external programming device ends (BC1) and (BC2), two external data download equipment ends (XZ1) and (XZ2).
The function of the elimination of filter rectification and pfc circuit realization electromagnetic interference, rectifying and wave-filtering, power factor compensation.The switching power circuit generation needs the direct voltage and the electric current (for example the utility model can drive the DC48V5A of 70WLED street lamp) of amplitude.The VOUT3 end and the VOUT4 end of interior power supply circuit are exported DC12V and DC5V power supply respectively, supply the inner use of this LED streetlamp driving power supply.Drive with the 1Steing of control circuit to 10 strings, 7 of 7Steing part also totally 70 LEDs are the LED road-light light-sources of giving an example for the utility model, do not belong to the part of this LED streetlamp driving power supply.Drive with control circuit and realize brightness adjustment control, its BC1 end and BC2 hold external programming device, XZ1 end and XZ2 end external data download equipment.
The advantage of the utility model:
1. respectively go here and there the LED drive, guarantee respectively to go here and there the constant all the time of LED operating current at rated value or set-point.
2. LED be 10 strings 7 also, realize that the LED street lamp of 70W drives.Change output and the LED string and the number of Switching Power Supply simultaneously, can realize that the LED street lamp of other power drives.
3. utilize the PWN light modulation.
4. conversion efficiency is up to more than 88%.
5. power factor is up to more than 95%.
Description of drawings
Fig. 1 is the filter rectification and the pfc circuit of the utility model.
Fig. 2 is the switching power circuit of the utility model.
Fig. 3 is the interior power supply circuit of the utility model.
Fig. 4 is the driving and the control circuit of the utility model.
Embodiment:
In Fig. 1, connect capacitor C 11 between VIN1-1 end and the VIN1-2 end, the VIN1-2 end is through being connected resistance R 101 behind the fuse RT1 with between the VIN1-1 end; 1 end of VIN1-1 termination inductance T11,3 ends of VIN1-2 termination inductance T11 connect resistance R 102 and the R103 that connects between 2 ends of inductance T11 and 4 ends; 1 end of the 2 termination inductance T12 of inductance T11; 3 ends of the 4 termination inductance T12 of inductance T11,1 end of the 2 termination ic chips 11 of inductance T12,2 ends of the 4 termination ic chips 11 of inductance T12; Connect capacitor C 12 between 3 ends of ic chip 11 and 4 ends; 1 end of 3 termination inductance T13 of ic chip 11,3 ends of ic chip 11 connect 8 pin of ic chip 12 through series resistance R104 and resistance R 105, and 3 ends of ic chip 11 connect high pressure ground through series resistance R106 and R107; 4 ends of ic chip 11 are high pressure ground, connect 3 ends of inductance T13; The iron core of inductance T13 connects high pressure ground, the anode of the 2 termination ic chips 13 of inductance T13, connects the drain electrode of FET Q1, and 4 ends of inductance T13 connect high pressure ground, connect high pressure ground, connect the negative electrode of voltage stabilizing didoe DW11 through capacitor C 14 and resistance R 112 through series resistance R110 and resistance R 111 through the string road of resistance R 109 and capacitor C 13; The negative electrode of voltage stabilizing didoe DW11 connects the anode of diode D101; The negative electrode of diode D101 connect ic chip 12 8 pin, connect high pressure ground through capacitor C 15, between the 5 pin connecting resistance R110 and resistance R 111 of ic chip 12,3 foot meridian capacitor C16 of ic chip 12 connect high pressure ground, between resistance R 108 connecting resistance R106 and resistance R 107; 6 pin of ic chip 12 connect high pressure ground through resistance R 113; Between the 2 foot meridian capacitor C17 connecting resistance R118 and R119 of ic chip 12, between the 1 pin connecting resistance R118 and R119 of ic chip 12,4 pin of ic chip 12 connect high pressure ground, connect the source electrode of FET Q1 through resistance R 116; 7 pin of ic chip 12 connect the grid of FET Q1 through resistance R 115 and resistance 114; The negative electrode of ic chip 13 connects high pressure ground through resistance R 117, resistance R 118, resistance R 119 successively, and the negative electrode of ic chip 13 connects high pressure ground through the also road of capacitor C 18 and capacitor C 19, and the negative electrode of ic chip 13 is as the voltage output end VOUT1 of this filter rectification with pfc circuit.
In Fig. 2; The voltage input end VIN2 end of switching power circuit connects 7 pin of ic chip 21 through resistance R 201; The VIN2 end connects high pressure ground through resistance R 201 and capacitor C 201 successively; VIN2 end through capacitor C 202 and resistance R 202 and the road connect the negative electrode of diode D21,1 end of VIN2 termination transformer T21, the anode of diode D21 connect transformer T21 2 ends, connect the drain electrode of FET Q2; The source electrode of FET Q2 connect ic chip 21 3 pin, connect high pressure ground through resistance R 203; The grid of FET Q2 connects 6 pin of ic chip 21, and 8 pin of ic chip 21 connect 4 pin of ic chip 21 through resistance R 204, and 4 foot meridian capacitor C203 of ic chip 21 connect high pressure ground; 2 pin of ic chip 21 through resistance R 205 and capacitor C 204 and the road connect ic chip 21 1 pin, connect 3 pin of ic chip 22; 3 pin of ic chip 22 connect high pressure ground through resistance R 206, and connecting resistance R209 between 1 pin of ic chip 22 and 2 pin, 2 foot meridian capacitor C214 of ic chip 22 connect low pressure ground, connect the R utmost point of ic chip 23; 1 pin of ic chip 22 connects 2 ends of inductance T22 through resistance R 208; The A utmost point of ic chip 23 connects low pressure ground, between the K utmost point connecting resistance R212 and resistance R 210 of ic chip 23, connects the string road of capacitor C 213, connection capacitor C 212 and resistance R 211 between the K utmost point of ic chip 23 and the R utmost point; 4 ends of transformer T21 connect low pressure ground through negative electrode, the anode of diode D22 successively; 4 ends of transformer T21 connect low pressure ground through the string road of resistance R 207 and capacitor C 206, and 3 ends of transformer T21 connect low pressure ground, 1 end of the 3 termination inductance T22 of transformer T21 through the also road of capacitor C 207, capacitor C 208, capacitor C 209; 2 ends of inductance T22 connect low pressure ground successively through the string road of resistance R 210, resistance R 212, potentiometer RW21; 2 ends of inductance T22 connect low pressure ground through the string road of the anode of the negative electrode of resistance R 210, resistance R 213, resistance R 214, voltage stabilizing didoe DW21, voltage stabilizing didoe DW21 successively, 2 ends of inductance T22 through capacitor C 210 and capacitor C 211 and the road connect low pressure ground, 2 ends of inductance T22 are as the voltage output end VOUT2 of this switching power circuit.
In Fig. 3; The voltage input end VIN3 of interior power supply circuit end connects 3 ends of ic chip 31, connects 3 ends of ic chip 32 through resistance R 32 through resistance R 31; The 2 termination low pressure ground of ic chip 31; 1 end of ic chip 31 connects low pressure ground through the also road of capacitor C 31 and capacitor C 32; 1 end of ic chip 31 is as DC12V power source voltage output VOUT3, and 1 end of ic chip 32 connects low pressure ground through the also road of capacitor C 33 and capacitor C 34, and 1 end of ic chip 32 is as DC5V power source voltage output VOUT4.
In Fig. 4; Right-hand component is the driving constant-current source of LED; Have 7 the tunnel (in order to simplify; Only draw the 1 the road and the 7 the tunnel among the figure); The circuit structure on each road is identical; Each road is formed by integrated package (being IC43, IC44, IC45, IC46, IC47, IC48, IC49), electric capacity (being C405, C406, C407, C408, C409, C410, C411), resistance (being R406, R407, R408, R409, R410, R411, R412), inductance (being T41, T42, T43, T44, T45, T46, T47), voltage stabilizing didoe (being DW41, DW42, DW43, DW44, DW45, DW46, DW47), and the LED on each road is external, does not belong to this circuit scope; Upper left is the translation circuit that 7 paths of LEDs drive the constant-current source pwm signal, receives the 3rd pin of each road integrated package (being IC43, IC44, IC45, IC46, IC47, IC48, IC49) simultaneously, as brightness adjustment control; Drive in the constant-current source at the 1st paths of LEDs; VIN4 end connects low pressure ground, connects 5 pin of ic chip 43 through capacitor C 405; 2 pin of ic chip 43 connect low pressure ground, connect resistance R 406 between 5 pin of ic chip 43 and 4 pin, and 5 pin of ic chip 43 connect the negative electrode of voltage stabilizing didoe DW41; 1 pin of ic chip 43 connects the anode of voltage stabilizing didoe DW41, connects the string road that inductance T41 and outside 10 LEDs are formed between 4 pin of ic chip 43 and 1 pin; For for simplicity, the 1 road to the 6th paths of LEDs drives constant-current source circuit and wiring thereof and closes to tie up to not omit in this circuit and draw; Drive in the constant-current source at the 7th paths of LEDs; VIN4 end connects low pressure ground, connects 5 pin of ic chip 49 through capacitor C 411; 2 pin of ic chip 49 connect low pressure ground, connect resistance R 412 between 5 pin of ic chip 49 and 4 pin, and 5 pin of ic chip 49 connect the negative electrode of voltage stabilizing didoe DW47; 1 pin of ic chip 49 connects the anode of voltage stabilizing didoe DW47, connects the string road that inductance T47 and outside 10 LEDs are formed between 4 pin of ic chip 49 and 1 pin; 1 pin of single-chip microcomputer IC42 connects low pressure ground, connects crystal oscillator XT41 between 6 pin of single-chip microcomputer IC42 and 7 pin, and the 6 foot meridian capacitor C403 of single-chip microcomputer IC42 connect low pressure ground; The 7 foot meridian capacitor C404 of single-chip microcomputer IC42 connect low pressure ground; 4 pin of single-chip microcomputer IC42 and 5 pin (being XZ2 end and XZ1 end) external data download equipment, the external programming device of 18 pin of single-chip microcomputer IC42 and 19 pin (being BC2 end and BC1 end), 2 pin of single-chip microcomputer IC42 meet DC5V; 2 pin of single-chip microcomputer IC42 connect 3 pin of single-chip microcomputer IC42 through the positive pole of capacitor C 401, the negative pole of capacitor C 401 successively; Single-chip microcomputer IC42's, 3 pin connect low pressure ground through resistance R 405, and 27 pin of single-chip microcomputer IC42 connect 2 pin of operational amplifier IC41 through resistance R 401; 2 pin of operational amplifier IC41 connect low pressure ground through resistance R 402; 7 pin of operational amplifier IC41 meet DC12V, connect low pressure ground through capacitor C 401, connect resistance R 404 between 3 pin of operational amplifier IC41 and 6 pin, and 4 pin of operational amplifier IC41 connect low pressure ground.
Operation principle: this LED streetlamp driving power supply; Adopt the single-phase AC220V power supply of utility grid, AC220V is through the filtering of electromagnetic interference circuit, again through circuit such as over commutation, filtering, PFC and Switching Power Supplies; Generation needs the DC power supply of voltage, current amplitude (DC48V5A that gives an example like the utility model); This power supply is supplied with simultaneously and is respectively gone here and there LED, and each goes here and there the constant current of LED independence, and the LED that realizes respectively going here and there is luminous with the current drives that equates; Through Single-chip Controlling, reduce respectively to go here and there the operating current of LED as required simultaneously, in proportion, realize whole lamp light modulation, so that satisfy the illumination requirement of different time sections.
Claims (1)
1. LED streetlamp driving power supply; It is characterized in that this LED streetlamp driving power supply is connected to form by filter rectification and pfc circuit, switching power circuit, interior power supply circuit, driving and control circuit; Two voltage input ends (VIN1-1) of filter rectification and pfc circuit and (VIN1-2) join with the phase line and the center line of electrical network single phase poaer supply respectively; The voltage output end of filter rectification and pfc circuit (VOUT1) connects the voltage input end (VIN2) of switching power circuit; The voltage output end of switching power circuit (VOUT2) connect interior power supply circuit voltage input end (VIN3), connect the voltage input end (VIN4) that drives with control circuit; Two voltage output ends (VOUT3) of interior power supply circuit and (VOUT4) be respectively DC12V and DC5V power output end, drive with control circuit be provided with two external programming device ends (BC1) and (BC2), two external data download equipment ends (XZ1) and (XZ2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120356819 CN202197443U (en) | 2011-09-22 | 2011-09-22 | LED (Light-Emitting Diode) street lamp driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120356819 CN202197443U (en) | 2011-09-22 | 2011-09-22 | LED (Light-Emitting Diode) street lamp driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202197443U true CN202197443U (en) | 2012-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120356819 Expired - Fee Related CN202197443U (en) | 2011-09-22 | 2011-09-22 | LED (Light-Emitting Diode) street lamp driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202197443U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244525A (en) * | 2014-09-12 | 2014-12-24 | 成都威邦科技有限公司 | LED drive system with linear dimming function |
| CN104968097A (en) * | 2014-11-22 | 2015-10-07 | 成都威邦科技有限公司 | Non-linear drain electrode driving system for blue LED lamp based on boost voltage stabilizing circuit |
-
2011
- 2011-09-22 CN CN 201120356819 patent/CN202197443U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244525A (en) * | 2014-09-12 | 2014-12-24 | 成都威邦科技有限公司 | LED drive system with linear dimming function |
| CN104244525B (en) * | 2014-09-12 | 2016-06-08 | 国网山东省电力公司定陶县供电公司 | A kind of LED drive system with linearity light adjusting function |
| CN104968097A (en) * | 2014-11-22 | 2015-10-07 | 成都威邦科技有限公司 | Non-linear drain electrode driving system for blue LED lamp based on boost voltage stabilizing circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |