CN201263232Y - External connection centralized control constant-current driving unit and monitoring system for LED lighting lamp - Google Patents
External connection centralized control constant-current driving unit and monitoring system for LED lighting lampDownload PDFInfo
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- CN201263232Y CN201263232YCNU2008200997956UCN200820099795UCN201263232YCN 201263232 YCN201263232 YCN 201263232YCN U2008200997956 UCNU2008200997956 UCN U2008200997956UCN 200820099795 UCN200820099795 UCN 200820099795UCN 201263232 YCN201263232 YCN 201263232Y
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- circuit
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- constant current
- led illuminating
- current driving
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Technical field
The utility model relates to the control of LED illuminating lamp, be specifically related to external centralized control constant current driving unit of a kind of LED illuminating lamp and supervisory control system, be mainly used in general lighting, be particularly suited for places such as corridor, corridor, gas station, displaying shelf and inflammable and explosive, waterproof and dustproof, protection against the tide.
Background technology
Novel power LED light source receives much attention with many good characteristics such as its energy-saving and environmental protection, long-lives, and the various led light source circuit that are used for general lighting arise at the historic moment, and known LED illuminating lamp mostly is structure and the occupation mode that does not change the traditional lighting light fixture.According to brightness, in the lamp parallel connection of many power LED string of lights is imposed step-down constant current control again, to satisfy the demand of LED incoming transport 220V mains supply under the different capacity to the difference illumination.This class working method weak point is space step-down constant-current circuit of packing in the lamp of each narrow and small even sealing, has not only accounted for volume but also has increased heat in the lamp, is unfavorable for very much the heat radiation of power LED light source, and dangerous, also is not easy to dismounting and safeguards.In addition, the efficient that provides the Schottky tube of constant-current source high-frequency rectification of the low-voltage, high-current of power LED to want loss about 8%, and heating is serious.
Summary of the invention
The purpose of this utility model provides the external centralized control constant current driving unit of a kind of LED illuminating lamp, and it can reduce the heat of led light source in each lamp, dwindles and simplify the structure of lamp, raises the efficiency and cost performance convenient for maintaining.
The external centralized control constant current driving unit of LED illuminating lamp described in the utility model is connected to form by collection control constant-current supply and the load of a plurality of nonpolarity series LED illuminating lamp; Collection is controlled the low-voltage that the exportable safety of constant-current supply is isolated, and makes the LED illuminating lamp operating on low voltage of distribution each point, and it is dangerous that housing does not have electric shock, conveniently adopts the metal shell heat radiation; This collection control constant-current supply comprise the EMI+ rectification circuit that is connected with the alternating current 220V electrical network, the PFC+ pulse amplitude control circuit that is connected with the EMI+ rectification circuit, with pulse width control and output circuit that PFC+ pulse amplitude control circuit is connected, it is characterized in that:
One single chip machine controlling circuit is connected with pulse width control and output circuit with PFC+ pulse amplitude control circuit respectively; This single chip machine controlling circuit comprises single-chip microcomputer IC1, three terminal regulator IC2, and filter capacitor C11, C12, C13, C7 and C8, dimmer switch K also includes triode G5, photo resistance RG, resistance R 15 and R16 constitute light-operated circuit;
The various controlled function of the external single-chip microcomputer collection of LED illuminating lamp control constant current driving unit are finished by single-chip microcomputer IC1, single-chip microcomputer IC1 receives the current sampling from output loop, the voltage sampling of DC bus-bar voltage, relatively export two parameters of control in the back with the reservation value, one is the height (promptly exporting the amplitude of pulse) of control DC bus-bar voltage, another is the width of control output pulse, and reaching grid voltage change, output loading changes and the output high-frequency current mean value that is provided with is constant.Single-chip microcomputer IC1 carries out homophase control to the input voltage and input current of power supply, obtains High Power Factor, and high frequency positive negative pulse stuffing alternation mean value constant current power supply is adopted in output, saves D' Arsonval current rectifying and wave-filtering link.
A plurality of series LED illuminating lamps and pulse width control and output circuit.
The external centralized control constant current driving unit of described LED illuminating lamp, its described EMI+ rectification circuit comprises EMI filter inductance L1, capacitor C 1, C2 and bridge rectifier D1-D4.
The external centralized control constant current driving unit of described LED illuminating lamp, its described PFC+ pulse amplitude control circuit comprises inductance L 2, L3, divider resistance R3 and R4, dividing potential drop capacitor C 3 and C4, high frequency output rectifying tube D5 also comprises power tube G1, the pwm pulse drive controlling of being sent by single-chip microcomputer IC1.
The external centralized control constant current driving unit of described LED illuminating lamp, its described pulse width control and output circuit comprise C4, C5 and capacitance C6, power is to pipe G2 and G3, by the pwm pulse drive controlling that single-chip microcomputer IC1 sends, also comprise output transformer T1, current sampling mutual inductor T2, voltage indication R11 and luminous indication DR
The external centralized control constant current driving unit of described LED illuminating lamp, its described a plurality of series LED illuminating lamps, i.e. Z1, Z2... ZKBe nonpolarity LED illuminating lamp.The LED illuminating lamp adopts series system to connect, and makes the installation wiring not note polarity, and wiring is simple.The load of LED illuminating lamp takes the mode of being connected in series to obtain high conversion efficiency; collection control constant-current supply to the amplitude of its output high frequency positive negative pulse stuffing square wave, pulsewidth, twoly automatically regulate control realizing mean value constant current tracking Control to the LED illuminating lamp of varying number, and can conveniently carry out light modulation, regularly, various control and overcurrent, short circuit such as light-operated, abnormal protection such as open circuit.
The utility model also provides the external centralized control constant current driving unit of a kind of LED illuminating lamp supervisory control system, it can be controlled the external centralized control constant current driving unit of a plurality of LED illuminating lamps, can also adopt the serial communication mode to be connected with microcomputer, carry out the man-machine interface visualized operation, the LED illuminating lamp is implemented multiple optimal control and management and monitoring, give full play to that power LED is energy-conservation, long-life, advantage that controllability is strong.
The external centralized control constant current driving unit of LED illuminating lamp described in the utility model supervisory control system, comprise the external centralized control constant current driving unit of plural LED illuminating lamp, one microcomputer is connected by the serial line interface of connection with the single chip machine controlling circuit of the external centralized control constant current driving unit of each LED illuminating lamp, constitutes control system.Microcomputer carries out communication to the external centralized control constant current driving unit of each LED illuminating lamp and presets and revise Control Parameter, implements monitoring management.
The utility model is compared with prior art and is had the following advantages: given full play to the strong lamp characteristics of energy-conservation low-voltage of led light source and long-life controllability; Adopt the mode of the power supply of external collection control constant-current supply and the LED illuminating lamp load that is connected in series, have the electrical efficiency height, advantage such as sexual valence is excellent, and is convenient for installation and maintenance provides a cover new application system optimal solution for power LED is used for general lighting.
Description of drawings
Fig. 1 is the external centralized control constant current driving unit of a LED illuminating lamp theory diagram.
Fig. 2 is the circuit diagram that collection control constant-current supply of the present utility model and the load of a plurality of LED illuminating lamp are connected in series.
Fig. 3 is the external centralized control constant current driving unit of a LED illuminating lamp supervisory control system schematic diagram.
Fig. 4, Single-chip Controlling software program flow chart.
Fig. 5, supervise the system controlling software program flow diagram.
Embodiment
Referring to Fig. 1 and Fig. 2, the external centralized control constant current driving unit of LED illuminating lamp described in the utility model is connected to form by collection control constant-current supply and the load of a plurality of series LED illuminating lamp; This collection control constant-current supply comprises the EMI+ rectification circuit 1 that is connected with the alternating current 220V electrical network, the PFC+ pulse amplitude control circuit 2 that is connected with the EMI+ rectification circuit, the pulse width control and the output circuit 3 that are connected with PFC+ pulse amplitude control circuit, and single chip machine controlling circuit 4 is connected with pulse width control and output circuit with PFC+ pulse amplitude control circuit respectively; A plurality of series LED illuminating lamps 5 respectively with pulse width control and output circuit 3.
EMI+ rectification circuit 1 comprises EMI filter inductance L1, capacitor C 1, C2 and bridge rectifier D1-D4.
PFC+ pulse amplitude control circuit 2 comprises inductance L 2, L3, divider resistance R3 and R4, and dividing potential drop capacitor C 3 and C4 high frequency output rectifying tube D5 also comprises power tube G1, the pwm pulse drive controlling of being sent by single-chip microcomputer IC1.
Pulse width control and output circuit 3 comprise C4, C5 and capacitance C6, and power by the pwm pulse drive controlling that single-chip microcomputer IC1 sends, also comprises output transformer T1, current sampling mutual inductor T2, voltage indication R11 and luminous indication DR to pipe G2 and G3.
Single chip machine controlling circuit 4 comprises single-chip microcomputer IC1, three terminal regulator IC2, and filter capacitor C11, C12, C13, C7 and C8, dimmer switch K also includes triode G5, photo resistance RG, resistance R 15 and R16 constitute light-operated circuit.
A plurality of series LED illuminating lamps 5, i.e. Z1, Z2... ZKBe nonpolarity LED illuminating lamp.
Referring to Fig. 3, the external centralized control constant current driving unit of LED illuminating lamp supervisory control system, comprise the external centralized control constant current driving unit of plural LED illuminating lamp,microcomputer 6 is connected by theserial line interface 7 of connection with the single chip machine controlling circuit 4 of the external centralized control constant current driving unit of each LED illuminating lamp, constitutes control system.
The software control of single-chip microcomputer divides inner to collecting the program management of controlling constant-current supply and accepting outside microcomputer supervision two parts to the external centralized control constant current driving unit of each LED illuminating lamp: internal processes is managed through resistance R 16, R17, the electrical network sine voltage signal sampling of forming,resistance R 7, the R9 dividing potential drop is to the high low output voltage sampling of pulse amplitude, current transformer T2, and rectification D9, filtering C14, dividing potential drop R11, the output current sampling that R12 constitutes, send into single-chip microcomputer, benchmark by single-chip microcomputer follow procedure and setting compares, judge that the pwm pulse of exporting by single-chip microcomputer again reaches the phase place of controlling its electric current and input voltage chronologically, go the amplitude of control output voltage, and the width of half-bridge output voltage, constant with the current average that obtains load set.Simultaneously also can be to unusual condition as: output current overload, output open circuit after short circuit etc. are judged, is protected power cutoff immediately.Its software program control flow chart is seen Fig. 4.
Microcomputer is supervised by the single-chip microcomputer in the external centralized control constant current driving unit of each LED illuminating lamp, take RS485 serial communication mode, microcomputer accesses the visualization interface that obtains with the program of special-purpose cd, carrying out human-computer dialogue controls the single-chip microcomputer in the external centralized control constant current driving unit of each LED illuminating lamp, as: all turn on light during the flow of personnel peak, night turns on light in the subregion, the timing switch lamp of every day, lamp illuminance adjusting etc.Control Parameter is set and modification etc. by man-machine visualized operation, its software program control flow chart is seen Fig. 5.
Claims (7)
1, the external centralized control constant current driving unit of LED illuminating lamp is connected to form by collection control constant-current supply and the load of a plurality of series LED illuminating lamp; This collection control constant-current supply comprises the EMI+ rectification circuit (1) that is connected with the alternating current 220V electrical network, the PFC+ pulse amplitude control circuit (2) that is connected with the EMI+ rectification circuit, the pulse width control that is connected with PFC+ pulse amplitude control circuit and output circuit (3), it is characterized in that:
One single chip machine controlling circuit (4) is connected with pulse width control and output circuit (3) with PFC+ pulse amplitude control circuit (2) respectively; This single chip machine controlling circuit comprises single-chip microcomputer IC1, three terminal regulator IC2, and filter capacitor C11, C12, C13, C7 and C8, dimmer switch K also includes triode G5, photo resistance RG, resistance R 15 and R16 constitute light-operated circuit;
A plurality of series LED illuminating lamps (5) are connected with pulse width control and output circuit (3).
2, the external centralized control constant current driving unit of LED illuminating lamp according to claim 1, it is characterized in that: described EMI+ rectification circuit (1) comprises EMI filter inductance L1, capacitor C 1, C2 and bridge rectifier D1-D4.
3, the external centralized control constant current driving unit of LED illuminating lamp according to claim 1, it is characterized in that: described PFC+ pulse amplitude control circuit (2) comprises inductance L 2, L3, divider resistance R3 and R4, dividing potential drop capacitor C 3 and C4, high frequency output rectifying tube D5, also comprise power tube G1, the pwm pulse drive controlling of sending by single-chip microcomputer IC1.
4, the external centralized control constant current driving unit of LED illuminating lamp according to claim 1, it is characterized in that: described pulse width control and output circuit (3) comprise C4, C5 and capacitance C6, power is to pipe G2 and G3, by the pwm pulse drive controlling that single-chip microcomputer IC1 sends, also comprise output transformer T1, current sampling mutual inductor T2, voltage indication R11 and luminous indication DR
5, the external centralized control constant current driving unit of LED illuminating lamp according to claim 1 is characterized in that: described a plurality of series LED illuminating lamps (5), i.e. Z1, Z2... ZKBe nonpolarity LED illuminating lamp.
6, collection control constant-current supply according to claim 1 is to two automatically adjusting of amplitude, pulsewidth of the high frequency positive negative pulse stuffing square wave of its output; for the nonpolarity LED illuminating lamp of varying number provides mean value constant current tracking Control, and can make things convenient for light modulation, regularly, various control and abnormal protections such as overcurrent, short circuit such as light-operated.
7, the external centralized control constant current driving unit of LED illuminating lamp supervisory control system, comprise the external centralized control constant current driving unit of plural LED illuminating lamp, it is characterized in that: a microcomputer (6) is connected by the serial line interface (7) of connection with the single chip machine controlling circuit (4) of the external centralized control constant current driving unit of each LED illuminating lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200997956UCN201263232Y (en) | 2008-08-26 | 2008-08-26 | External connection centralized control constant-current driving unit and monitoring system for LED lighting lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008200997956UCN201263232Y (en) | 2008-08-26 | 2008-08-26 | External connection centralized control constant-current driving unit and monitoring system for LED lighting lamp |
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| CN201263232Ytrue CN201263232Y (en) | 2009-06-24 |
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| CNU2008200997956UExpired - Fee RelatedCN201263232Y (en) | 2008-08-26 | 2008-08-26 | External connection centralized control constant-current driving unit and monitoring system for LED lighting lamp |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101959350A (en)* | 2010-10-15 | 2011-01-26 | 珠海市绿色照明科技有限公司 | Electrolytic capacitor-free LED power source power conversion method and application circuit thereof |
| CN101984735A (en)* | 2010-11-26 | 2011-03-09 | 皇明洁能控股有限公司 | Light emitting diode (LED) constant current driver and illuminating system |
| CN102626004A (en)* | 2009-08-18 | 2012-08-01 | 皇家飞利浦电子股份有限公司 | Method and apparatus providing universal voltage input for solid state light fixtures |
| CN102869154A (en)* | 2012-09-04 | 2013-01-09 | 江苏尚明光电有限公司 | Novel LED (light-emitting diode) driving device |
| US9200186B2 (en) | 2008-09-17 | 2015-12-01 | Avery Dennison Corporation | Activatable adhesive, labels, and related methods |
| CN106954318A (en)* | 2017-05-22 | 2017-07-14 | 合肥联信电源有限公司 | A kind of centrally connected power source centralized Control type illumination LED light fixture with dimming function |
- 2008
- 2008-08-26CNCNU2008200997956Upatent/CN201263232Y/ennot_activeExpired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9200186B2 (en) | 2008-09-17 | 2015-12-01 | Avery Dennison Corporation | Activatable adhesive, labels, and related methods |
| CN102626004A (en)* | 2009-08-18 | 2012-08-01 | 皇家飞利浦电子股份有限公司 | Method and apparatus providing universal voltage input for solid state light fixtures |
| CN102626004B (en)* | 2009-08-18 | 2015-04-01 | 皇家飞利浦电子股份有限公司 | Method and apparatus providing universal voltage input for solid state light fixtures |
| CN101959350A (en)* | 2010-10-15 | 2011-01-26 | 珠海市绿色照明科技有限公司 | Electrolytic capacitor-free LED power source power conversion method and application circuit thereof |
| CN101984735A (en)* | 2010-11-26 | 2011-03-09 | 皇明洁能控股有限公司 | Light emitting diode (LED) constant current driver and illuminating system |
| CN102869154A (en)* | 2012-09-04 | 2013-01-09 | 江苏尚明光电有限公司 | Novel LED (light-emitting diode) driving device |
| CN106954318A (en)* | 2017-05-22 | 2017-07-14 | 合肥联信电源有限公司 | A kind of centrally connected power source centralized Control type illumination LED light fixture with dimming function |
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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:20090624 Termination date:20120826 |