CN104822205A - LED segmented dimming constant-current drive power supply - Google Patents
LED segmented dimming constant-current drive power supply Download PDFInfo
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- CN104822205A CN104822205A CN201510223053.4A CN201510223053A CN104822205A CN 104822205 A CN104822205 A CN 104822205A CN 201510223053 A CN201510223053 A CN 201510223053A CN 104822205 A CN104822205 A CN 104822205A
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- 239000003990 capacitor Substances 0.000 claims abstract description 45
- 230000000087 stabilizing effect Effects 0.000 claims description 12
- 230000002459 sustained effect Effects 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000005286 illumination Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention relates to an LED segmented dimming constant-current drive power supply comprising a full-wave rectifier circuit D formed by rectifier diodes D1, D2, D3, and D4, a constant-current driver chip IC1, a switch transformer B, a diming regulation triode Q1, a segmented dimming chip IC2, a filter capacitor C1, a power supply resistor R2, a voltage-adjusting resistor R3, a decoupling capacitor C2, a fly-wheel diode D5, a filter capacitor C3, a rectifier diode D6, a filter capacitor C4, a plurality of light-emitting diodes from D9 to Dn, a segmented dimming chip IC2, a voltage-regulator diode D7, a capacitor C5, an isolating diode D8, current-limiting resistors R1,R8, and R9, and a decoupling capacitor C6. And the input terminal of the full-wave rectifier circuit D formed by the rectifier diodes D1, D2, D3, and D4 is connected with a power supply P. The provided power supply has advantages of simple structure, low cost, and high efficiency and energy conservation.
Description
Technical field
The present invention relates to a kind of LED drive power, be specifically related to a kind of LED sectional dimming constant-current driving power supply.
Background technology
LED illumination device, as the novel illumination light source of present lighting field, than conventional incandescent streetlamp energy-saving more than 80%, has the plurality of advantages such as energy-saving and environmental protection.Due to the particularity of LED illumination device type of drive, general LED illumination device can not modulated light, which limits the range of application of LED illumination device.
Also have the lighting apparatus that can regulate LED light source in the market, but some control modes are too complicated, equipment cost is high, causes financial burden to user, and some control modes are simple, but electric energy can not be fully utilized, waste electric energy.
Summary of the invention
For above-mentioned situation, the object of this invention is to provide a kind of LED sectional dimming constant-current driving power supply, can according to actual conditions sectional dimming, circuit structure is simple, cost is little, energy-efficient.
Technical scheme of the present invention is as follows: a kind of LED sectional dimming constant-current driving power supply, comprise rectifier diode D1, D2, D3, the full-wave rectifying circuit D of D4 composition, constant-current driven chip IC1, switch transformer B, brightness adjustment control triode Q1, sectional dimming chip IC 2, filter capacitor C1, supplying resistance R2, voltage-regulation resistance R3, decoupling capacitor C2, sustained diode 5, filter capacitor C3, rectifier diode D6, filter capacitor C4, some light-emitting diode D9 to Dn, sectional dimming chip IC 2, voltage stabilizing didoe D7, electric capacity C5, isolating diode D8, current-limiting resistance R1, R8, R9, decoupling capacitor C6, described rectifier diode D1, D2, D3, the input of the full-wave rectifying circuit D of D4 composition connects power supply P, output connects filter capacitor C1, after supplying resistance R2 is connected in series with decoupling capacitor C2 and filter capacitor C1 connecing, the pin 4 of described constant-current driven chip IC1 is connected between decoupling capacitor C2 and supplying resistance R2, the pin two of constant-current driven chip IC1 is connected to one end of voltage-regulation resistance R3, the described other end of voltage-regulation resistance R3 and the pin one of constant-current driven chip IC1 are connected to the negative pole of decoupling capacitor, the pin 7 of constant-current driven chip IC1, pin 8 is connected to the collector electrode of brightness adjustment control triode Q1, pin 5 is connected with the positive pole of sustained diode 5 respectively with pin 6, one end of the primary coil L1 of described switch transformer B is connected to the positive pole of sustained diode 5, the other end connects the negative pole of filter capacitor C3 respectively, described filter capacitor C3 also meets some light-emitting diode D9 to Dn and resistance R6, secondary coil L2 one end of switch transformer B is connected to the emitter of brightness adjustment control triode Q1 by rectifier diode D6, the other end is connected to the emitter of brightness adjustment control triode Q1 by filter capacitor C4, described resistance R1 one end is connected to rectifier diode D1, between D2, the other end connects the negative pole of voltage stabilizing didoe D7, the positive pole of isolating diode D8, the positive pole of voltage stabilizing didoe D7 is connected between rectifier diode D3 and D4, described voltage stabilizing didoe D7 shunt-wound capacitance C5, the pin 4 of described sectional dimming chip IC 2 is connected with one end of electric capacity C5, pin 3 is connected with the other end of pin one with electric capacity C5, pin 5 is connected the negative pole of isolating diode D8 with pin 6, pin 7 series resistor R8, pin 8 series resistor R9 is connected to the base stage of brightness adjustment control triode Q1.
Preferably, the input of described power supply P is connected with insurance RD, and the use of power supply is safer.
Preferably, described constant-current driven chip IC1 is chip CSC8935, and described sectional dimming chip IC 2 is chip NS1834, and driving and the adjustment process of circuit are more stable.
Preferably, pin 7, the pin 8 of described constant-current driven chip IC1 connect current sampling resistor R4, the collector electrode of described brightness adjustment control triode Q1 is connected with resistance R5, and the pin 4 connection signal input resistance R7 of described sectional dimming chip IC 2, makes the direct voltage on circuit more steady.
LED sectional dimming constant-current driving power supply of the present invention, by the dimmer L2 on switch transformer B, voltage commutation on L2 is become direct voltage, this direct voltage is utilized to go to regulate the pin 7 of IC1, the voltage of pin 8 by triode Q1, thus the current value on the pin 7 of adjustment triode IC1, pin 8 external impressed current sampling resistor R4, the base stage of triode Q1 is subject to the pin 7 of sectional dimming chip IC 2, pin 8 controls.When opening powered-down switch continuously, corresponding control signal will be exported at the pin 7 of IC2, pin 8, go the conducting state of control Q1, the output current value of corresponding change driving power, R8, R9 are respectively pin 7, the pin 8 output current limiting resistance of IC2, and output signal voltage is to the base stage of Q1, the resistance of R8 and R9 is unequal, by the various combination of R8 and R9 resistance, realize when different segmentation, regulate LED light-emitting diode D9 to Dn to be different brightness.
LED sectional dimming constant-current driving power supply of the present invention, other LED dimming power source, has the advantages such as circuit structure is simple, cost is little, energy-efficient relatively.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is the embodiment of the present invention 2 circuit theory diagrams.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of LED sectional dimming constant-current driving power supply, comprise rectifier diode D1, D2, D3, the full-wave rectifying circuit D of D4 composition, constant-current driven chip IC1, switch transformer B, brightness adjustment control triode Q1, sectional dimming chip IC 2, filter capacitor C1, supplying resistance R2, voltage-regulation resistance R3, decoupling capacitor C2, sustained diode 5, filter capacitor C3, rectifier diode D6, filter capacitor C4, some light-emitting diode D9 to Dn, sectional dimming chip IC 2, voltage stabilizing didoe D7, electric capacity C5, isolating diode D8, current-limiting resistance R1, R8, R9, decoupling capacitor C6, described rectifier diode D1, D2, D3, the input of the full-wave rectifying circuit D of D4 composition connects power supply P, output connects filter capacitor C1, the input of described power supply P is connected with insurance RD, after supplying resistance R2 is connected in series with decoupling capacitor C2 and filter capacitor C1 connecing, the pin 4 of described constant-current driven chip IC1 is connected between decoupling capacitor C2 and supplying resistance R2, the pin two of constant-current driven chip IC1 is connected to one end of voltage-regulation resistance R3, the described other end of voltage-regulation resistance R3 and the pin one of constant-current driven chip IC1 are connected to the negative pole of decoupling capacitor, the pin 7 of constant-current driven chip IC1, pin 8 is connected to the collector electrode of brightness adjustment control triode Q1, pin 5 is connected with the positive pole of sustained diode 5 respectively with pin 6, one end of the primary coil L1 of described switch transformer B is connected to the positive pole of sustained diode 5, the other end connects the negative pole of filter capacitor C3 respectively, described filter capacitor C3 also meets some light-emitting diode D9 to Dn and resistance R6, secondary coil L2 one end of switch transformer B is connected to the emitter of brightness adjustment control triode Q1 by rectifier diode D6, the other end is connected to the emitter of brightness adjustment control triode Q1 by filter capacitor C4, described resistance R1 one end is connected to rectifier diode D1, between D2, the other end connects the negative pole of voltage stabilizing didoe D7, the positive pole of isolating diode D8, the positive pole of voltage stabilizing didoe D7 is connected between rectifier diode D3 and D4, described voltage stabilizing didoe D7 shunt-wound capacitance C5, the pin 4 of described sectional dimming chip IC 2 is connected with one end of electric capacity C5, pin 3 is connected with the other end of pin one with electric capacity C5, pin 5 is connected the negative pole of isolating diode D8 with pin 6, pin 7 series resistor R8, pin 8 series resistor R9 is connected to the base stage of brightness adjustment control triode Q1.
P is civil power 220V alternating current input, IC1 is chip CSC8935, and peak power output is the single power of 36W, D9 to Dn is 1W, the number of D9 to Dn is 24, IC2 is 1 pin of chip NS1834, IC2 is chip ground end, and pin 7, pin 8 are power take-off, pin 3 is external reset end, pin 4 is control signal input, and pin 5 is chip power end, and pin 6 is mode setting terminal.
During circuit working, civil power 220V alternating current is through insurance RD, again through diode D1, D2, D3, the full-wave rectifying circuit D rectification of D4 composition, electric capacity C1 forms stable direct voltage, positive step voltage one tunnel of electric capacity C1 supplies the 4 pin operating voltages of IC1 through resistance R2, another road is through LED light-emitting diode D9 to Dn, the pin 5 of IC1 is arrived with the primary coil L1 of switch transformer B, pin 6, IC1 starts working, from pin 5, pin 6 output switch pulse voltage arrives the primary coil L1 of switch transformer B, induced voltage in primary coil L1, through D5 rectification C3 filtering, driving LED light-emitting diode D9 to Dn is luminous.
During this period, the induced voltage produced in the secondary coil L2 of switch transformer B is through D6 rectification C4 filtering, C4 is formed stable direct voltage, and this direct voltage removes pin 7, pin 8 voltage of control IC1 through triode Q1, resistance R5, thus controls the current value flowing through resistance R4.The conducting degree of Q1 is subject to the control of sectional dimming chip IC 2, when opening powered-down switch continuously, the control signal of corresponding various combination will be exported at the pin 7 of IC2, pin 8, the pin 7 of IC2, pin 8 output signal voltage, the base stage of Q1 is input to respectively by R8 and R9, Q1 is made to be operated in corresponding conducting state, thus the electric current controlling to flow through resistance R4 is corresponding current value, the electric current exported with regard to control switch transformer B is like this corresponding current value, driving LED light-emitting diode D9 to Dn is luminous, so just obtains the object of sectional dimming.
The sequential of IC2 is that 1. pin 7 exports, and 2. pin 8 exports, and 3. pin 7, pin 8 export.The brightness order of corresponding control LED light-emitting diode is, the brightest, bright, dark, changes, thus reach sectional dimming with this sequential loop.
Embodiment 2
As shown in Figure 2, P is civil power 220V alternating current input, and IC1 is chip CSC8935, peak power output is 36W, the single power of D9 to Dn is that the number of 1W, D9 to Dn should be 36, and IC2 is chip NS1834, the pin one of IC2 is chip ground end, pin two, pin 7, pin 8 are power take-off, and pin 3 is external reset end, and pin 4 is control signal input, pin 5 is chip power end, and pin 6 is mode setting terminal.
During circuit working, civil power 220V alternating current is through insurance RD, again through diode D1, D2, D3, the full-wave rectifying circuit D rectification of D4 composition, electric capacity C1 forms stable direct voltage, positive step voltage one tunnel of electric capacity C1 supplies pin 4 operating voltage of IC1 through resistance R2, another road is through LED light-emitting diode D9 to Dn, the pin 5 of IC1 is arrived with the primary coil L1 of switch transformer B, pin 6, IC1 starts working, from pin 5, pin 6 output switch pulse voltage arrives the primary coil L1 of switch transformer B, induced voltage in primary coil L1, through D5 rectification C3 filtering, driving LED light-emitting diode D9 to Dn is luminous.
During this period, the induced voltage produced in the secondary coil L2 of switch transformer B is through D6 rectification C4 filtering, C4 is formed stable direct voltage, and this direct voltage removes pin 7, pin 8 voltage of control IC1 through triode Q1, resistance R5, thus controls the current value flowing through resistance R4.The conducting degree of Q1 is subject to the control of sectional dimming chip IC 2, when opening powered-down switch continuously, will at the pin two of IC2,7,8, export the control signal of corresponding various combination, the pin two of IC2,7,8 output signal voltages, be input to the base stage of Q1 respectively by R10, R8 and R9, make Q1 be operated in corresponding conducting state, thus the electric current controlling to flow through resistance R4 is corresponding current value.The electric current exported with regard to control switch transformer B is like this corresponding current value, and driving LED light-emitting diode D9 to Dn is luminous.So just obtain the object of sectional dimming.
The sequential of IC2 is, 1. pin two export, 2. pin 7 exports, 3. pin 8 export 4. pin two, 7,8 export.The brightness order of corresponding control LED light-emitting diode is, the brightest, bright, secretly, the darkest, change with this sequential loop.
Claims (7)
1. a LED sectional dimming constant-current driving power supply, it is characterized in that comprising rectifier diode D1, D2, D3, the full-wave rectifying circuit D of D4 composition, constant-current driven chip IC1, switch transformer B, brightness adjustment control triode Q1, sectional dimming chip IC 2, filter capacitor C1, supplying resistance R2, voltage-regulation resistance R3, decoupling capacitor C2, sustained diode 5, filter capacitor C3, rectifier diode D6, filter capacitor C4, some light-emitting diode D9 to Dn, sectional dimming chip IC 2, voltage stabilizing didoe D7, electric capacity C5, isolating diode D8, current-limiting resistance R1, R8, R9, decoupling capacitor C6, described rectifier diode D1, D2, D3, the input of the full-wave rectifying circuit D of D4 composition connects power supply P, output connects filter capacitor C1, after supplying resistance R2 is connected in series with decoupling capacitor C2 and filter capacitor C1 connecing, the pin 4 of described constant-current driven chip IC1 is connected between decoupling capacitor C2 and supplying resistance R2, the pin two of constant-current driven chip IC1 is connected to one end of voltage-regulation resistance R3, the described other end of voltage-regulation resistance R3 and the pin one of constant-current driven chip IC1 are connected to the negative pole of decoupling capacitor, the pin 7 of constant-current driven chip IC1, pin 8 is connected to the collector electrode of brightness adjustment control triode Q1, pin 5 is connected with the positive pole of sustained diode 5 respectively with pin 6, one end of the primary coil L1 of described switch transformer B is connected to the positive pole of sustained diode 5, the other end connects the negative pole of filter capacitor C3 respectively, described filter capacitor C3 also meets some light-emitting diode D9 to Dn and resistance R6, secondary coil L2 one end of switch transformer B is connected to the emitter of brightness adjustment control triode Q1 by rectifier diode D6, the other end is connected to the emitter of brightness adjustment control triode Q1 by filter capacitor C4, described resistance R1 one end is connected to rectifier diode D1, between D2, the other end connects the negative pole of voltage stabilizing didoe D7, the positive pole of isolating diode D8, the positive pole of voltage stabilizing didoe D7 is connected between rectifier diode D3 and D4, described voltage stabilizing didoe D7 shunt-wound capacitance C5, the pin 4 of described sectional dimming chip IC 2 is connected with one end of electric capacity C5, pin 3 is connected with the other end of pin one with electric capacity C5, pin 5 is connected the negative pole of isolating diode D8 with pin 6, pin 7 series resistor R8, pin 8 series resistor R9 is connected to the base stage of brightness adjustment control triode Q1.
2. LED sectional dimming constant-current driving power supply according to claim 1, is characterized in that the input of described power supply P is connected with insurance RD.
3. LED sectional dimming constant-current driving power supply according to claim 1, is characterized in that described constant-current driven chip IC1 is chip CSC8935.
4. LED sectional dimming constant-current driving power supply according to claim 1, is characterized in that described sectional dimming chip IC 2 is chip NS1834.
5. LED sectional dimming constant-current driving power supply according to claim 1, is characterized in that the collector electrode of described brightness adjustment control triode Q1 is connected with resistance R5.
6. LED sectional dimming constant-current driving power supply according to claim 1, is characterized in that 7,8 pin of described constant-current driven chip IC1 connect current sampling resistor R4.
7. LED sectional dimming constant-current driving power supply according to claim 1, is characterized in that the pin 4 connection signal input resistance R7 of described sectional dimming chip IC 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223053.4A CN104822205B (en) | 2015-05-05 | A kind of LED sectional dimmings constant-current driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223053.4A CN104822205B (en) | 2015-05-05 | A kind of LED sectional dimmings constant-current driving power supply |
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| CN104822205A true CN104822205A (en) | 2015-08-05 |
| CN104822205B CN104822205B (en) | 2018-02-09 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998804A (en) * | 2015-08-17 | 2015-10-28 | 上虞市燎原照明电器厂 | Nail polish glue curing lamp |
| CN106020312A (en) * | 2016-07-20 | 2016-10-12 | 浙江工业大学 | Constant current source for earth magnetic field compensation in cold atom interference type gravity meter |
| CN106132027A (en) * | 2016-08-16 | 2016-11-16 | 胡志强 | Two-wire intelligent LED dimming power source |
| CN108738203A (en) * | 2018-07-13 | 2018-11-02 | 深圳安赋特科技有限公司 | LED power invariable power input control circuit |
| CN109068441A (en) * | 2018-08-02 | 2018-12-21 | 苏州欧普照明有限公司 | A kind of LED sectional dimming circuit |
| CN111372359A (en) * | 2018-12-26 | 2020-07-03 | 湖南汇博电子科技股份有限公司 | Emergency marker light and lamp management system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080297058A1 (en) * | 2007-06-04 | 2008-12-04 | Applied Concepts Inc. | Method, apparatus, and system for driving LED's |
| CN101893167A (en) * | 2009-05-18 | 2010-11-24 | 赵娓 | Direct-current power supply for lamp |
| US20110101876A1 (en) * | 2008-11-13 | 2011-05-05 | Young Lighting Technology Corporation | Light Emitting Diode Driving Circuit |
| CN102244964A (en) * | 2011-07-07 | 2011-11-16 | 杭州矽力杰半导体技术有限公司 | Hybrid multi-output power supply and regulating method thereof |
| CN102905435A (en) * | 2012-10-17 | 2013-01-30 | 广州南科集成电子有限公司 | Wide-voltage high-power-factor light emitting diode (LED) lamp switching and dimming circuit |
| CN204598403U (en) * | 2015-05-05 | 2015-08-26 | 卫斌鹏 | A kind of LED sectional dimming power supply |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080297058A1 (en) * | 2007-06-04 | 2008-12-04 | Applied Concepts Inc. | Method, apparatus, and system for driving LED's |
| US20110101876A1 (en) * | 2008-11-13 | 2011-05-05 | Young Lighting Technology Corporation | Light Emitting Diode Driving Circuit |
| CN101893167A (en) * | 2009-05-18 | 2010-11-24 | 赵娓 | Direct-current power supply for lamp |
| CN102244964A (en) * | 2011-07-07 | 2011-11-16 | 杭州矽力杰半导体技术有限公司 | Hybrid multi-output power supply and regulating method thereof |
| CN102905435A (en) * | 2012-10-17 | 2013-01-30 | 广州南科集成电子有限公司 | Wide-voltage high-power-factor light emitting diode (LED) lamp switching and dimming circuit |
| CN204598403U (en) * | 2015-05-05 | 2015-08-26 | 卫斌鹏 | A kind of LED sectional dimming power supply |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998804A (en) * | 2015-08-17 | 2015-10-28 | 上虞市燎原照明电器厂 | Nail polish glue curing lamp |
| CN106020312A (en) * | 2016-07-20 | 2016-10-12 | 浙江工业大学 | Constant current source for earth magnetic field compensation in cold atom interference type gravity meter |
| CN106132027A (en) * | 2016-08-16 | 2016-11-16 | 胡志强 | Two-wire intelligent LED dimming power source |
| CN108738203A (en) * | 2018-07-13 | 2018-11-02 | 深圳安赋特科技有限公司 | LED power invariable power input control circuit |
| CN109068441A (en) * | 2018-08-02 | 2018-12-21 | 苏州欧普照明有限公司 | A kind of LED sectional dimming circuit |
| CN111372359A (en) * | 2018-12-26 | 2020-07-03 | 湖南汇博电子科技股份有限公司 | Emergency marker light and lamp management system |
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Inventor after: Feng Keqiang Inventor after: Feng Guoming Inventor before: Wei Binpeng Inventor before: Wei Chao |
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Effective date of registration: 20180117 Address after: 528421 the seventh floor of E1 workshop, No. 460, No. 460, East North Road, Cao two, Zhongshan, Guangdong Applicant after: Zhongshan Zhong Xin Yuan lighting Electric Co., Ltd. Address before: 048100, Shanxi City, Jincheng province Yangcheng County town run Village Applicant before: Wei Binpeng |
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