CN204795790U - LED constant -current drive circuit of luminance / colour temperature is adjusted in segmentation - Google Patents
LED constant -current drive circuit of luminance / colour temperature is adjusted in segmentation Download PDFInfo
- Publication number
- CN204795790U CN204795790U CN201520536817.0U CN201520536817U CN204795790U CN 204795790 U CN204795790 U CN 204795790U CN 201520536817 U CN201520536817 U CN 201520536817U CN 204795790 U CN204795790 U CN 204795790U
- Authority
- CN
- China
- Prior art keywords
- constant current
- led
- port
- output
- luminescence units
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
Abstract
The utility model discloses a realize LED constant -current drive circuit of luminance / colour temperature is adjusted in segmentation, including switch, alternating current power supply, rectifier circuit, filter circuit, LED module, piggyback control constant current chip, the model of piggyback control constant current chip is SM2211E. Be applied to the segmentation as SM2211E and when adjusting luminance, can be based on to open and close switch, change output current's size in proper order to change the luminance of LED lamp, the regulation proportion can set up the resistance adjustment that port no. 1, output current set up port no. 2 in output current through external. Be applied to the segmentation as SM2211E and when adjusting the colour temperature, can be based on to open and close switch, change luminance output port on off state in proper order, realize bright the going out in order to reach the purpose of adjusting the colour temperature of transition of the LED luminescence unit of two tunnel different colour temperatures, adjust externally setting up the resistance that port no. 1, output current set up port no. 2 in output current and can adjust output.
Description
Technical field
The utility model is related to field of LED drive technology, the constant current driver circuit for LED of more particularly to sectional-regulated brightness/colour temperature.
Background technology
Traditional LED illumination lamp, driving the power supply of the LED lamp is：220V alternating currents enter high frequency transformer, and LED lamp is then driven after transformer secondary output rectification.Because the output area of power supply is fixed, thus, it can not be interchangeable with other light fixtures；And because it is in different application scenarios, time, LED illumination lamp is all that, with maximum power output, the power of light can not be realized by reasonably adjusting the size of output current to change, and not reach the purpose of light modulation, color-temperature regulating and energy-conservation.
Utility model content
To overcome the deficiencies in the prior art, the purpose of this utility model is to provide the constant current driver circuit for LED that a kind of sectional simple in construction, easy to operate adjusts brightness/colour temperature.
The utility model is that the technical scheme for solving the use of its technical problem is：
A kind of constant current driver circuit for LED of sectional-regulated brightness, including switch, AC power, rectification circuit, filter circuit, LED module, Discrete control constant current chip, the first electric capacity, the second electric capacity, first resistor, second resistance；The positive terminal of the LED module connects the output end of rectification circuit；The model SM2211E of the Discrete control constant current chip, the Discrete control constant current chip is provided with supply port, VDD power ports, VCC power ports, output current and sets port one, output current to set port two, constant current output port one, constant current output port two；The fire wire output end of the AC power, zero line output end connects the input of rectification circuit respectively, the switch is arranged between the fire wire output end of AC power and rectification circuit input end, the output end of the rectification circuit controls the supply port of constant current chip by filter circuit connection segment, the VDD power ports of Discrete control constant current chip pass through the first capacity earth, VCC power ports pass through the second capacity earth, output current sets port one to pass sequentially through first resistor, second resistance is grounded, output current sets port two to be grounded by second resistance, constant current output port one and constant current output port two and the negative pole end that LED module is connected after connecing.
Further, the LED module includes the LED high-voltage lamp bead of multiple series connection.
Further, the LED module includes the LED luminescence units of multiple series connection, and each LED luminescence units include multiple LED high-voltage lamp beads in parallel；The Discrete control constant current chip is provided with multiple, the negative pole end of connection LED module behind the constant current output port one of the multiple Discrete control constant current chip and the parallel connection of constant current output port two.
Further, the filter circuit uses RC filter circuits.
A kind of constant current driver circuit for LED of sectional-regulated colour temperature, including switch, AC power, rectification circuit, filter circuit, LED module, Discrete control constant current chip, the first electric capacity, the second electric capacity, first resistor, second resistance；The LED module includes LED luminescence units one, the LED luminescence units two of different-colour, and the LED luminescence units one, the positive terminal of LED luminescence units two connect the output end of rectification circuit jointly；The model SM2211E of the Discrete control constant current chip, the Discrete control constant current chip is provided with supply port, VDD power ports, VCC power ports, output current and sets port one, output current to set port two, constant current output port one, constant current output port two；The fire wire output end of the AC power, zero line output end connects the input of rectification circuit respectively, the switch is arranged between the fire wire output end of AC power and rectification circuit input end, the output end of the rectification circuit controls the supply port of constant current chip by filter circuit connection segment, the VDD power ports of Discrete control constant current chip pass through the first capacity earth, VCC power ports pass through the second capacity earth, output current sets port one to be grounded by first resistor, output current sets port two to be grounded by second resistance, the negative pole end of the connection LED luminescence units of constant current output port one one, the negative pole end of the connection LED luminescence units of constant current output port two two.
Further, the filter circuit uses RC filter circuits.
Further, the LED luminescence units one, LED luminescence units two include the LED high-voltage lamp bead of multiple series connection respectively.
The beneficial effects of the utility model are：The utility model realizes sectional-regulated brightness/colour temperature by Discrete control constant current chip SM2211E.When SM2211E is applied to sectional-regulated brightness, can be according to open and close power switch, change the size of output current successively, so as to change the brightness of LED, regulation ratio can set port one, output current to set the resistance of port two to be adjusted by being external in output current.When SM2211E is applied to sectional-regulated colour temperature, can be according to open and close power switch, change luminance output end mouthful on off state successively, the alternating light on and off of LED luminescence units of two-way different-colour are realized to reach the purpose of regulation colour temperature, regulation is external in output current and sets port one, output current to set the resistance of port two that power output can be adjusted.
Brief description of the drawings
Below in conjunction with accompanying drawing and example, the utility model is described in further detail.
Fig. 1 is the circuit theory diagrams of embodiment one of the present utility model；
Fig. 2 is the circuit theory diagrams of embodiment two of the present utility model；
Fig. 3 is the circuit theory diagrams of embodiment three of the present utility model.
Embodiment
Embodiment one
Reference picture 1, a kind of constant current driver circuit for LED of sectional-regulated brightness of the present utility model, including switch SB1, AC power, rectification circuit, filter circuit, LED module, Discrete control constant current chip, the first electric capacity C1, the second electric capacity C2, first resistor R1, second resistance R2；The positive terminal of the LED module connects the output end of rectification circuit；The model SM2211E of the Discrete control constant current chip, the Discrete control constant current chip is provided with supply port VIN, VDD power port, VCC power ports, output current and sets the REXT1 of port one, output current to set the REXT2 of port two, the OUT1 of constant current output port one, the OUT2 of constant current output port two；The fire wire output end L of the AC power, zero line output end N connects the input of rectification circuit respectively, the switch SB1 is arranged between the fire wire output end of AC power and rectification circuit input end, the output end of the rectification circuit controls the supply port VIN of constant current chip by filter circuit connection segment, the VDD power ports of Discrete control constant current chip are grounded by the first electric capacity C1, VCC power ports are grounded by the second electric capacity C2, output current sets the REXT1 of port one to pass sequentially through first resistor R1, second resistance R2 is grounded, output current sets the REXT2 of port two to be grounded by second resistance R2, the OUT1 of the constant current output port one and OUT2 of constant current output port two and the negative pole end that LED module is connected after connecing.
In the present embodiment, the LED module includes the LED high-voltage lamp bead of multiple series connection.
In the present embodiment, the filter circuit uses RC filter circuits, including the polarized electric capacity E1 and 3rd resistor R3 being connected in parallel.
When SM2211E is in sectional-regulated brightness applications, can be according to open and close power switch SB1, change the size of output current successively, so as to change the brightness of LED, regulation ratio can set the REXT1 of port one, output current to set the REXT2 of port two first resistor R1, second resistance R2 to be adjusted by being external in output current.
Switch is opened for the first timeSecond of unlatching of switchSwitch third time is openedRegulation ratio is followed successively by 50%, 100%, X%,
In the present embodiment, the first electricity R1 resistances use the Ω of resistance 180 resistance, and second resistance R2 uses the Ω of resistance 20 resistance, and switch opens three times and is sequentially output electric current 15mA, 30mA, 3mA, and light modulation ratio is 50%, 100%, 10%.
Embodiment two
Reference picture 2, the difference of embodiment two and embodiment one is：The present embodiment is applied to the constant current driver circuit for LED of sectional-regulated colour temperature, the LED module includes LED luminescence units one, the LED luminescence units two of different-colour, output current sets the REXT1 of port one to be grounded by first resistor R1, output current sets the REXT2 of port two to be grounded by second resistance R2, the negative pole end of the OUT1 connection LED luminescence units one of constant current output port one, the negative pole end of the OUT2 connection LED luminescence units two of constant current output port two.The LED luminescence units one, LED luminescence units two include the LED high-voltage lamp bead of multiple series connection respectively.
When SM2211E is applied to sectional-regulated colour temperature, can be according to open and close power switch, change luminance output end mouthful on off state successively, the alternating light on and off of LED luminescence units of two-way different-colour are realized to reach the purpose of regulation colour temperature, regulation is external in output current and sets the REXT1 of port one, output current to set the REXT2 of port two first resistor R1, second resistance R2 that power output can be adjusted.
Switch is opened for the first timeSecond of unlatching of switchSwitch third time is opened
In the present embodiment, the Ω of resistance 30 resistance is respectively adopted in first resistor R1, second resistance R2, and it is 30mA that switch opens output current every time.
Embodiment three
Reference picture 3, the difference of embodiment three and embodiment one is：The LED module includes the LED luminescence units of multiple series connection, and each LED luminescence units include multiple LED high-voltage lamp beads in parallel；The Discrete control constant current chip is provided with multiple, the negative pole end of connection LED module after the REXT1 of constant current output port one and the REXT2 of constant current output port two of the multiple Discrete control constant current chip are in parallel.
Using the application scheme that multiple Discrete control constant current chips are in parallel in the present embodiment, it is adaptable to a fairly large number of high-powered LED lamp of lamp bead.
Described above, simply preferred embodiment of the present utility model, the utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, should all belong to protection domain of the present utility model.
Claims (7)
1. a kind of constant current driver circuit for LED of sectional-regulated brightness, it is characterised in that：Including switch, AC power, rectification circuit, filter circuit, LED module, Discrete control constant current chip, the first electric capacity, the second electric capacity, first resistor, second resistance；The positive terminal of the LED module connects the output end of rectification circuit；The model SM2211E of the Discrete control constant current chip, the Discrete control constant current chip is provided with supply port, VDD power ports, VCC power ports, output current and sets port one, output current to set port two, constant current output port one, constant current output port two；The fire wire output end of the AC power, zero line output end connects the input of rectification circuit respectively, the switch is arranged between the fire wire output end of AC power and rectification circuit input end, the output end of the rectification circuit controls the supply port of constant current chip by filter circuit connection segment, the VDD power ports of Discrete control constant current chip pass through the first capacity earth, VCC power ports pass through the second capacity earth, output current sets port one to pass sequentially through first resistor, second resistance is grounded, output current sets port two to be grounded by second resistance, constant current output port one and constant current output port two and the negative pole end that LED module is connected after connecing.
2. a kind of constant current driver circuit for LED of sectional-regulated brightness according to claim 1, it is characterised in that：The LED module includes the LED high-voltage lamp bead of multiple series connection.
3. a kind of constant current driver circuit for LED of sectional-regulated brightness according to claim 1, it is characterised in that：The LED module includes the LED luminescence units of multiple series connection, and each LED luminescence units include multiple LED high-voltage lamp beads in parallel；The Discrete control constant current chip is provided with multiple, the negative pole end of connection LED module behind the constant current output port one of the multiple Discrete control constant current chip and the parallel connection of constant current output port two.
4. a kind of constant current driver circuit for LED of sectional-regulated brightness according to claim 1, it is characterised in that：The filter circuit uses RC filter circuits.
5. a kind of constant current driver circuit for LED of sectional-regulated colour temperature, it is characterised in that：Including switch, AC power, rectification circuit, filter circuit, LED module, Discrete control constant current chip, the first electric capacity, the second electric capacity, first resistor, second resistance；The LED module includes LED luminescence units one, the LED luminescence units two of different-colour, and the LED luminescence units one, the positive terminal of LED luminescence units two connect the output end of rectification circuit jointly；The model SM2211E of the Discrete control constant current chip, the Discrete control constant current chip is provided with supply port, VDD power ports, VCC power ports, output current and sets port one, output current to set port two, constant current output port one, constant current output port two；The fire wire output end of the AC power, zero line output end connects the input of rectification circuit respectively, the switch is arranged between the fire wire output end of AC power and rectification circuit input end, the output end of the rectification circuit controls the supply port of constant current chip by filter circuit connection segment, the VDD power ports of Discrete control constant current chip pass through the first capacity earth, VCC power ports pass through the second capacity earth, output current sets port one to be grounded by first resistor, output current sets port two to be grounded by second resistance, the negative pole end of the connection LED luminescence units of constant current output port one one, the negative pole end of the connection LED luminescence units of constant current output port two two.
6. a kind of constant current driver circuit for LED of sectional-regulated brightness according to claim 5, it is characterised in that：The filter circuit uses RC filter circuits.
7. a kind of constant current driver circuit for LED of sectional-regulated brightness according to claim 5, it is characterised in that：The LED luminescence units one, LED luminescence units two include the LED high-voltage lamp bead of multiple series connection respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536817.0U CN204795790U (en) | 2015-07-22 | 2015-07-22 | LED constant -current drive circuit of luminance / colour temperature is adjusted in segmentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536817.0U CN204795790U (en) | 2015-07-22 | 2015-07-22 | LED constant -current drive circuit of luminance / colour temperature is adjusted in segmentation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204795790U true CN204795790U (en) | 2015-11-18 |
Family
ID=54535748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520536817.0U Active CN204795790U (en) | 2015-07-22 | 2015-07-22 | LED constant -current drive circuit of luminance / colour temperature is adjusted in segmentation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204795790U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937445A (en) * | 2017-03-30 | 2017-07-07 | 新和（绍兴）绿色照明有限公司 | One kind switch multistage linear constant-current dimming LED |
| US10986715B1 (en) | 2019-11-25 | 2021-04-20 | Industrial Technology Research Institute | LED driving circuit and method |
-
2015
- 2015-07-22 CN CN201520536817.0U patent/CN204795790U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937445A (en) * | 2017-03-30 | 2017-07-07 | 新和（绍兴）绿色照明有限公司 | One kind switch multistage linear constant-current dimming LED |
| CN106937445B (en) * | 2017-03-30 | 2018-07-10 | 新和（绍兴）绿色照明有限公司 | A kind of switch multistage linear constant-current dimming LED light |
| US10986715B1 (en) | 2019-11-25 | 2021-04-20 | Industrial Technology Research Institute | LED driving circuit and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105578639B (en) | LED and light-dimming method | |
| CN205232499U (en) | LED lamp convenient to adjust luminance | |
| CN203788515U (en) | LED color temperature and luminous flux adjusting circuit | |
| CN205754954U (en) | LED light modulation color-temperature regulating circuit and light fixture | |
| CN206977741U (en) | A kind of tunable optical color-temperature regulating LED module circuit | |
| CN108650748A (en) | A kind of constant pressure dimming power source device being compatible with a variety of dimming modes | |
| WO2018068485A1 (en) | Light adjustment and colour temperature adjustment circuit for led light bar | |
| CN205005298U (en) | LED lamps and lanterns of switch mixing of colors and control circuit thereof | |
| CN204795790U (en) | LED constant -current drive circuit of luminance / colour temperature is adjusted in segmentation | |
| CN205883635U (en) | Linear LED switch mixing of colors drive circuit that adjusts luminance in step | |
| CN201757323U (en) | Flicker-free LED MR16 spotlight with dimming function | |
| CN203151813U (en) | LED light source drive circuit | |
| CN205213087U (en) | Novel high -voltage line nature of can adjusting luminance LED drive power supply | |
| CN206118121U (en) | LED lamp strip is adjusted luminance to mix colours and is reviewed circuit | |
| CN203872403U (en) | Circuit structure of double-switch light-adjusting color-adjusting LED driving power supply | |
| CN207070403U (en) | DOB circuit of light sources, light source module group and the LED lamp of adjustable color temperature | |
| CN207603953U (en) | A kind of compatible silicon controlled light modulation toning LED drive circuit of the High Power Factor without stroboscopic | |
| CN206948663U (en) | A kind of multiple-channel output constant current driver circuit for LED | |
| CN206669427U (en) | A kind of Novel LED light bar and its light bar for being easy to radiating | |
| CN205919163U (en) | LED photovoltaic module and LED lamps and lanterns | |
| CN104507200B (en) | LED light-dimming and color temperature adjusting circuit | |
| CN207179281U (en) | A kind of Novel LED lamp | |
| CN208258141U (en) | LED illumination System | |
| CN206640833U (en) | A kind of tunable optical strip LED module circuit | |
| CN205946247U (en) | Multichannel constant -current drive circuit and TV set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |