CN102421222A - Adaptive system constituted by LED (Light-Emitting Diode) lighting module and driving power source - Google Patents
Adaptive system constituted by LED (Light-Emitting Diode) lighting module and driving power source Download PDFInfo
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- CN102421222A CN102421222A CN2011102557779A CN201110255777A CN102421222A CN 102421222 A CN102421222 A CN 102421222A CN 2011102557779 A CN2011102557779 A CN 2011102557779A CN 201110255777 A CN201110255777 A CN 201110255777A CN 102421222 A CN102421222 A CN 102421222A
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Abstract
The invention provides an adaptive system constituted by an LED (Light-Emitting Diode) lighting module and a driving power source, wherein the driving power source comprises an output-variable driving circuit, a communication module and a control circuit; the LED lighting module comprises at least one LED lighting device, an information storage module and a communication interface; the output-variable driving circuit is externally connected with alternating-current or direct-current input; the output of the output-variable driving circuit is connected to the LED lighting device; the communication module is connected with the communication interface; the information storage module internally stores information of requirements of the LED lighting module on the driving current or the driving voltage; and when the system is initialized, the control circuit acquires a requirement of the LED lighting module on driving through the communication module and controls the output of the output-variable driving circuit to be in accordance with acquired requirement. The adaptive system disclosed by the invention has the advantages that the driving power source can be automatically matched with the LED lighting module, so that the convenience degree of the engineering application is increased, and the standardization of the LED lighting module and an LED power source is facilitated.
Description
Technical field
The present invention relates to the Adaptable System that a kind of LED illuminating module and driving power constitute, belong to the LED lighting field.
Background technology
LED illumination beginning the extensive use; Under many circumstances, the LED illuminator adopts modular construction, for example the LED luminescent device is integrated in the illuminating module; Driving power is integrated in another module, in practical applications, again both is connected into a system.The advantage of this structure is the reality that is fit to industrial division, but and system's flexible configuration; Shortcoming is the system configuration difficulty, when matching error, influences the reliably working of system, is unfavorable for the standardization of products.Coupling with driving power and LED illuminating module is an example, if power supply is a constant-current source, but if the output current of setting is higher than the drive current of LED module needs, then will there be considerable influence in the life-span to LED.
Summary of the invention
In order to address the above problem, main purpose of the present invention aims to provide the Adaptable System of a kind of LED illuminating module and driving power formation, makes driving power required electric energy is provided automatically according to the requirement of LED illuminating module.
The technical problem that the present invention will solve is: how to make driving power know the requirement of LED illuminating module to driving, make the output of driving power meet the requirement of knowing then.
There are constant pressure source and constant-current source in common LED electric consumption on lighting source, if comprised constant-current driving, then often needs the constant pressure source power supply in the general LED illumination module; If with the direct driving LED array of power supply, then often need constant-current source.Different LED illumination module need different voltages with different value or current value.Design one more powerful power supply changes the benchmark that constant voltage or constant current are controlled, can be in maximum export quota, and the constant voltage value or the constant current value of the output of adjustment power supply.
Based on above principle; The objective of the invention is to realize like this, constitute a kind of Adaptable System by LED illuminating module and driving power, wherein driving power comprises output variable drive circuits, communication module and control circuit; The LED illuminating module comprises at least one LED luminescent device, information storage module and communication interface; Output external interchange of variable drive circuits or direct current input, output is connected to the LED luminescent device, and communication module is connected with communication interface; It is characterized in that; The information storage module internal memory is placed with the information of LED illuminating module to the requirement of drive current or driving voltage, and when the control circuit start-up system initialization in the driving power, control circuit obtains the requirement of LED illuminating module to drive current or driving voltage through communication module; And the output of control output variable drive circuits on request, reach driving power output and adapt to the purpose that the LED illuminating module requires automatically.
The Adaptable System that described LED illuminating module and driving power constitute, when system's electrifying startup, or when obtaining outside starting command, or the LED illuminating module provides when requiring the initialization of control circuit start-up system.
Described LED illuminating module can be separated with driving power.
Described output variable drive circuits is a constant-current power supply circuit; Control circuit is according to the requirement of the LED illuminating module that obtains to drive current; Constant current control reference level in the control break constant-current power supply circuit makes the output constant current value of constant-current power supply circuit reach the requirement of LED illuminating module.
Described output variable drive circuits is a constant voltage power supply circuit; Control circuit is according to the requirement of the LED illuminating module that obtains to driving voltage; Constant voltage control reference level in the control break constant voltage power supply circuit makes the output constant voltage value of constant voltage power supply circuit reach the requirement of LED illuminating module.
Described output variable drive circuits is set its output and is controlled to be constant current or constant voltage control according to the requirement of the LED illuminating module that obtains to driving.
The Adaptable System that described LED illuminating module of such scheme and driving power constitute; When driving power matees with different LED illuminating module; Driving power can obtain the requirement of LED illuminating module to driving automatically, sets the control benchmark then, makes output coupling LED illuminating module automatically.
The invention has the beneficial effects as follows: the invention provides the Adaptable System that a kind of driving power matees the LED illuminating module automatically, improved the comfort level of practical applications, help the standardization of LED light emitting module and LED power supply.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Accompanying drawing 1 is the block diagram of general structure of the present invention;
Accompanying drawing 2 is one embodiment of the invention sketch mapes;
Label declaration in the accompanying drawing:
The 101-driving power; The 102-LED illuminating module;
103-exports variable drive circuits; The 104-control circuit; The 105-communication module;
The 106-LED luminescent device; The 107-information storage module; The 108-communication interface;
The C1-filter capacitor; The Q1-power switch pipe; The D1-fly-wheel diode;
The T1-inductance; The R1-current sampling resistor; R2-voltage sample resistance;
R3-voltage sample resistance; R4-resistance; R5-resistance;
R6-resistance; R7-resistance; The ZD-voltage-reference diode;
The DS-auxiliary DC power supply; The U1-BUK chip for driving; The U2-multiway analog switch;
The U3-single-chip microcomputer; The U4-multiway analog switch;
Single-chip microcomputer in the U5-LED module; LED-LED luminescent device group; The CON-connector.
Embodiment
See also shown in the accompanying drawing 1; The Adaptable System that LED illuminating module of the present invention and driving power constitute; Form by LED illuminating module (102) and driving power (101); Wherein driving power (101) comprises output variable drive circuits (103), communication module (105) and control circuit (104); LED illuminating module (102) comprises at least one LED luminescent device (106), information storage module (107) and communication interface (108); Output external interchange of variable drive circuits (103) or direct current input, output is connected to LED luminescent device (106), and communication module (105) is connected with communication interface (108); It is characterized in that; Information storage module (107) internal memory is placed with the information of LED illuminating module (102) to the requirement of drive current or driving voltage, and when control circuit (104) the start-up system initialization in the driving power (101), control circuit (104) obtains the requirement of LED illuminating module (102) to drive current or driving voltage through the communication interface (108) in communication module (105) and the LED illuminating module (102) from information storage module (107); And the output of control output variable drive circuits (103) makes its requirement that meets acquisition, reaches driving power (101) output and adapts to the purpose that LED illuminating module (102) requires automatically.
When system's electrifying startup, or when obtaining outside starting command, or LED illuminating module (102) provides when requiring control circuit (104) start-up system initialization.
In embodiment illustrated in fig. 1, LED illuminating module (102) can be separated with driving power (101).LED luminescent device quantity and connected mode to the requirement difference of its driving, therefore can be made different LED illuminating module (102) not simultaneously in the LED illuminating module (102), and will deposit information storage module (107) in to the requirement that drives.Can connect with different LED illuminating module (102) with same driving power (101), when connecting the back system initialization, driving power (101) will produce correct output automatically by said process.
Wherein exporting variable drive circuits (103) can be constant-current power supply circuit; Control circuit (104) is according to the requirement of the LED illuminating module (102) that obtains to drive current; Constant current control reference level in the control break constant-current power supply circuit makes the output constant current value of constant-current power supply circuit reach the requirement of LED illuminating module (102).
Output variable drive circuits (103) also can be a constant voltage power supply circuit; Control circuit (104) is according to the requirement of the LED illuminating module (102) that obtains to driving voltage; Constant voltage control reference level in the control break constant voltage power supply circuit makes the output constant voltage value of constant voltage power supply circuit reach the requirement of LED illuminating module (102).
Output variable drive circuits (103) also can be constant voltage or constant current variable power supply circuit, and control circuit (104) is set its output and is controlled to be constant current or constant voltage control according to the requirement of the LED illuminating module (102) that obtains to driving.
Accompanying drawing 2 is one embodiment of the invention sketch mapes, and the Adaptable System that said LED illuminating module of this embodiment and driving power constitute is made up of the main circuit of dc-dc conversion filter capacitor C1, power switch pipe Q1, sustained diode 1 and inductance T1; Current sampling resistor R1 produces main circuit output current feedback; Voltage sample resistance R 2 produces main circuit output voltage feedback with voltage sample resistance R 3 dividing potential drops, and two kinds of feedbacks select one of which to be connected to the FEEDBACK CONTROL end of BUK chip for driving U1 through multiway analog switch U4, and multiway analog switch U4 is controlled by single-chip microcomputer U3; If single-chip microcomputer U3 selects the making current feedback signal; Main circuit is operated in the constant current output mode, if select to connect voltage feedback signal, main circuit is operated in the constant voltage output mode.Resistance R 4, resistance R 5, resistance R 6 series connection backs and voltage-reference diode ZD also connect; Produce different partial pressure value; These different partial pressure value select one of which to be connected to the benchmark input end of BUK chip for driving U1 through multiway analog switch U2; Multiway analog switch U2 is controlled by single-chip microcomputer U3; When single-chip microcomputer U3 control selected the different partial pressure value of connection to import as the benchmark of BUK chip for driving U1, the output constant current value or the constant voltage value of main circuit changed, even the output of this driving power can be stabilized in different current target value or voltage-target.Auxiliary DC power supply DS is that above-mentioned all chips and voltage-reference diode ZD provide auxiliary direct current to press.
The LED illuminating module of present embodiment includes single-chip microcomputer U5 in LED luminescent device group (LED), the LED module; This LED illuminating module is connected with driving power through the connector CON on the driving power; The output of the main circuit of dc-dc conversion is connected with LED luminescent device group (LED); The COM1 of single-chip microcomputer U3 is connected with the COM1 of single-chip microcomputer U5 in the LED module, makes auxiliary DC power supply DS single-chip microcomputer U5 power supply in the LED module.Memory cell in the LED module in the single-chip microcomputer U5 deposits the requirement of LED luminescent device group (LED) to driving in this LED illuminating module in advance in.When system initialization; Single-chip microcomputer U5 communicates in single-chip microcomputer U3 and the LED module; Obtain the information that the driving of preservation requires in the single-chip microcomputer U5 in the LED module; Single-chip microcomputer U3 confirms at first that according to the information requirements that obtain this LED illuminating module requires constant voltage or constant-current driving, controls multiway analog switch U4 in view of the above and constitutes correct control mode; Single-chip microcomputer U3 confirms the target output value of constant current or constant voltage according to the information that obtains then, confirms the reference voltage value that produce, and U2 connects the control benchmark of correct partial pressure value as BUK chip for driving U1 through the I/O of single-chip microcomputer U3 mouth control multiway analog switch.
Present embodiment can be provided with single-chip microcomputer U3 when the LED illuminating module initially is connected with driving power, or each system is when powering on, the start-up system initialization.According to the said Adaptable System of present embodiment, when mating different LED illuminating module with same driving power, the driving power total energy give correct output according to the requirement of LED illuminating module automatically, reaches goal of the invention.
Claims (6)
1. the Adaptable System that constitutes of LED illuminating module and driving power; Form by LED illuminating module and driving power; Wherein driving power comprises output variable drive circuits, communication module and control circuit, and the LED illuminating module comprises at least one LED luminescent device, information storage module and communication interface, output external interchange of variable drive circuits or direct current input; Output is connected to the LED luminescent device; Communication module is connected with communication interface, it is characterized in that, the information storage module internal memory is placed with the information of LED illuminating module to the requirement of drive current or driving voltage; When the control circuit start-up system initialization in the driving power; Control circuit obtains the requirement of LED illuminating module to drive current or driving voltage through communication module, and the output of control output variable drive circuits on request, reaches driving power output and adapts to the purpose that the LED illuminating module requires automatically.
2. by the Adaptable System of the described LED illuminating module of claim 1 and driving power formation, it is characterized in that, when system's electrifying startup, or when obtaining outside starting command, or the LED illuminating module provides when requiring the initialization of control circuit start-up system.
3. by the Adaptable System of the described LED illuminating module of claim 1 and driving power formation, it is characterized in that described LED illuminating module can separate with driving power.
4. the Adaptable System that constitutes by described LED illuminating module of claim 1 and driving power; It is characterized in that described output variable drive circuits is a constant-current power supply circuit; Control circuit is according to the requirement of the LED illuminating module that obtains to drive current; Constant current control reference level in the control break constant-current power supply circuit makes the output constant current value of constant-current power supply circuit reach the requirement of LED illuminating module.
5. the Adaptable System that constitutes by described LED illuminating module of claim 1 and driving power; It is characterized in that described output variable drive circuits is a constant voltage power supply circuit; Control circuit is according to the requirement of the LED illuminating module that obtains to driving voltage; Constant voltage control reference level in the control break constant voltage power supply circuit makes the output constant voltage value of constant voltage power supply circuit reach the requirement of LED illuminating module.
6. the Adaptable System that constitutes by described LED illuminating module of claim 1 and driving power is characterized in that described output variable drive circuits according to the requirement of the LED illuminating module that obtains to driving, and sets its output and is controlled to be constant current or constant voltage control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102557779A CN102421222A (en) | 2011-09-01 | 2011-09-01 | Adaptive system constituted by LED (Light-Emitting Diode) lighting module and driving power source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102557779A CN102421222A (en) | 2011-09-01 | 2011-09-01 | Adaptive system constituted by LED (Light-Emitting Diode) lighting module and driving power source |
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| CN102421222A true CN102421222A (en) | 2012-04-18 |
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| CN2011102557779A Pending CN102421222A (en) | 2011-09-01 | 2011-09-01 | Adaptive system constituted by LED (Light-Emitting Diode) lighting module and driving power source |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014154020A1 (en) * | 2013-03-28 | 2014-10-02 | 东林科技股份有限公司 | Multi-specification light emitting diode chip driving method and driving device |
| CN111770613A (en) * | 2020-06-06 | 2020-10-13 | 深圳市零奔洋光电股份有限公司 | Adaptive control circuit and method for LED lamp strip |
| CN113129842A (en) * | 2019-12-31 | 2021-07-16 | Tcl集团股份有限公司 | Drive board, backlight drive circuit and backlight system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201001216Y (en) * | 2007-01-24 | 2008-01-02 | 先礼群 | High power LED drive circuit |
| CN101776253A (en) * | 2009-01-09 | 2010-07-14 | 东部高科股份有限公司 | Illumination apparatus and driving method thereof |
| CN201846499U (en) * | 2010-06-30 | 2011-05-25 | 深圳市浩城微电子科技有限公司 | Output conversion circuit for LED drive power supply |
-
2011
- 2011-09-01 CN CN2011102557779A patent/CN102421222A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201001216Y (en) * | 2007-01-24 | 2008-01-02 | 先礼群 | High power LED drive circuit |
| CN101776253A (en) * | 2009-01-09 | 2010-07-14 | 东部高科股份有限公司 | Illumination apparatus and driving method thereof |
| CN201846499U (en) * | 2010-06-30 | 2011-05-25 | 深圳市浩城微电子科技有限公司 | Output conversion circuit for LED drive power supply |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014154020A1 (en) * | 2013-03-28 | 2014-10-02 | 东林科技股份有限公司 | Multi-specification light emitting diode chip driving method and driving device |
| CN113129842A (en) * | 2019-12-31 | 2021-07-16 | Tcl集团股份有限公司 | Drive board, backlight drive circuit and backlight system |
| CN111770613A (en) * | 2020-06-06 | 2020-10-13 | 深圳市零奔洋光电股份有限公司 | Adaptive control circuit and method for LED lamp strip |
| CN111770613B (en) * | 2020-06-06 | 2021-02-23 | 深圳市零奔洋光电股份有限公司 | Adaptive control circuit and method for LED lamp strip |
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Application publication date: 20120418 |