CN203661352U - Low voltage LED lamp driving circuit - Google Patents
Low voltage LED lamp driving circuit Download PDFInfo
- Publication number
- CN203661352U CN203661352U CN201320789462.7U CN201320789462U CN203661352U CN 203661352 U CN203661352 U CN 203661352U CN 201320789462 U CN201320789462 U CN 201320789462U CN 203661352 U CN203661352 U CN 203661352U
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- China
- Prior art keywords
- module
- chip microcomputer
- led lamp
- cell
- charging
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- Expired - Fee Related
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a low voltage LED lamp driving circuit. The circuit is mainly formed by a single-chip microcomputer, a boost module, a cell, a charging module and a voltage reduction and voltage stabilization module. The charging module is used to convert external electricity into a constant current so as to charge the cell. The cell provides power for a LED lamp through the boost module. The voltage reduction and voltage stabilization module is used to provide power for the single-chip microcomputer. A control chip in the boost module uses an XL6003 type chip. The single-chip microcomputer carries out switch control on the charging module and the boost module. A control chip in the charging module uses an XL4002 type chip. The cell adopts a DC12V lead-acid cell. Because the single-chip microcomputer is used to carry out switch control on the charging module and the boost module, when the charging is not performed, the single-chip microcomputer closes the charging module so that power consumption is reduced and an energy saving and environmental protection characteristic is embodied. When a cell voltage is too low, the single-chip microcomputer closes the boost module so that the service life of the cell is prolonged.
Description
Technical field
The utility model relates to a kind of LED light source, is specifically related to a kind of lower voltage LED lamp drive circuit.
Background technology
It is CN102014537A that State Intellectual Property Office discloses publication number on 04 13rd, 2011, and patent name is the patent of invention of LED lamp drive circuit, and it comprises voltage stabilizing circuit, current stabilization circuit and feedback circuit.Voltage stabilizing circuit, provides and regulates the driving voltage of LED lamp; Current stabilization circuit, for LED lamp provides stable drive current.Feedback circuit, is connected with voltage stabilizing circuit and current stabilization circuit respectively, gathers the signal of telecommunication of current stabilization circuit, and produces feedback signal, carries out the adjustment of output voltage for voltage stabilizing circuit.LED lamp drive circuit of the present invention by feedback circuit, synchronously adjusts voltage stabilizing, current stabilization circuit, reaches and adjusts and the operating current of stable LED lamp, the object of operating voltage simultaneously.Above-mentioned drive circuit does not have the battery of charging module and power supply use, therefore there is real qualitative difference with this patent.
In addition, on market, outside light is generally the LED light source of lithium battery power supply, and with a low pressure constant current chip driving LED light source, the shortcoming of utilizing lithium battery is that power-on time is short, therefore can not meet daily life or requirements of one's work.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and the lower voltage LED lamp drive circuit of a kind of power-on time length, energy-conserving and environment-protective, long service life is provided.
The utility model is achieved through the following technical solutions:
Lower voltage LED lamp drive circuit, it is mainly by single-chip microcomputer, boost module, DC12V lead-acid battery, charging module, lowering and stabilizing blood pressure module composition, described charging module, in order to outside electricity is converted to constant current to described DC12V lead-acid battery charging, described DC12V lead-acid battery, is also powered to single-chip microcomputer by lowering and stabilizing blood pressure module to the power supply of LED lamp by boost module; Described single-chip microcomputer, in order to carry out switch control to charging module and boost module.
Control chip in described charging module adopts XL4002 cake core.
Control chip in described boost module adopts XL6003 cake core.
Described single-chip microcomputer is also electrically connected with two indicator lights.
Described single-chip microcomputer adopts the single-chip microcomputer of SC91F711 type.
The utility model, with respect to prior art, has following advantageous effect: owing to adopting DC12V lead-acid battery, therefore give the time of LED lamp power supply longer, greatly facilitate use; Owing to utilizing single-chip microcomputer to carry out switch control to charging module and boost module, in the time not charging, single-chip microcomputer cuts out charging module, therefore reduced power consumption, has embodied the feature of energy-conserving and environment-protective; Due in the time that cell voltage is too low, single-chip microcomputer can cut out boost module, thereby has extended the useful life of battery.
Accompanying drawing explanation
Fig. 1 is electric theory structure block diagram of the present utility model;
Fig. 2 is the electrical schematic diagram shown in Fig. 1.
In figure: 1, single-chip microcomputer; 2, boost module; 3, battery; 4, charging module; 5, lowering and stabilizing blood pressure module; 6, LED lamp; 7, indicator light.
Embodiment
below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment 1:
As shown in Figure 1, 2, lower voltage LED lamp drive circuit, it is mainly made up of single-chip microcomputer 1, boost module 2, battery 3, charging module 4, lowering and stabilizing blood pressure module 5, described charging module 4, charge to described battery 3 in order to outside electricity is converted to constant current, battery 3 adopts DC12V lead-acid battery, and battery powers to LED lamp 6 by boost module 2, also power to single-chip microcomputer 1 by lowering and stabilizing blood pressure module 5, the control chip in boost module 2 adopts XL6003 cake core; Described single-chip microcomputer 1, in order to carry out switch control to charging module 4 and boost module 2.Control chip in charging module 4 adopts XL4002 cake core.
Single-chip microcomputer 1 is also electrically connected with two indicator lights 7.
In addition, single-chip microcomputer 1 adopts the single-chip microcomputer of SC91F711 type.
Operation principle: can DC12V lead-acid battery be charged automatic constant current between extraneous input voltage 9-15V time, when outside no-voltage input, single-chip microcomputer cuts out the work of XL4002, further reduces power consumption.Cell voltage is between 10-14V time, and XL6003 is raised to 30V left and right driving LED light source electricity.When power supply is too low, single-chip microcomputer cuts out the too low electric discharge of work protection DC12V lead-acid battery of XL6003.Can be to the charging of DC12V lead-acid battery while having external power source, in the time that switch SW is closed, LED lamp is lighted, and bi-colour LED shows current battery status.
As mentioned above, just can realize preferably the utility model, above-described embodiment is only preferred embodiment of the present utility model, is not used for limiting practical range of the present utility model; Be that all equivalences of doing according to the utility model content change and modify, all by the utility model claim scope required for protection is contained.
Claims (5)
1. a lower voltage LED lamp drive circuit, it is characterized in that: it is mainly by single-chip microcomputer, boost module, DC12V lead-acid battery, charging module, lowering and stabilizing blood pressure module composition, described charging module, in order to outside electricity is converted to constant current to described DC12V lead-acid battery charging, described DC12V lead-acid battery, is also powered to single-chip microcomputer by lowering and stabilizing blood pressure module to the power supply of LED lamp by boost module; Described single-chip microcomputer, in order to carry out switch control to charging module and boost module.
2. lower voltage LED lamp drive circuit according to claim 1, is characterized in that: the control chip in described charging module adopts XL4002 cake core.
3. lower voltage LED lamp drive circuit according to claim 1, is characterized in that: the control chip in described boost module adopts XL6003 cake core.
4. lower voltage LED lamp drive circuit according to claim 1, is characterized in that: described single-chip microcomputer is also electrically connected with two indicator lights.
5. lower voltage LED lamp drive circuit according to claim 1, is characterized in that: described single-chip microcomputer adopts the single-chip microcomputer of SC91F711 type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789462.7U CN203661352U (en) | 2013-12-04 | 2013-12-04 | Low voltage LED lamp driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789462.7U CN203661352U (en) | 2013-12-04 | 2013-12-04 | Low voltage LED lamp driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203661352U true CN203661352U (en) | 2014-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320789462.7U Expired - Fee Related CN203661352U (en) | 2013-12-04 | 2013-12-04 | Low voltage LED lamp driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203661352U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108040395A (en) * | 2017-12-12 | 2018-05-15 | 黄焕珠 | A kind of direct-current LED headlamp of Width funtion high brightness |
| CN108184282A (en) * | 2017-12-12 | 2018-06-19 | 黄焕珠 | A kind of direct-current LED floodlight driver of Width funtion high brightness |
| CN111200891A (en) * | 2020-03-16 | 2020-05-26 | 长沙微笑美齿智能科技有限公司 | Constant-voltage control device and method for supplying power to root canal swinging washer |
-
2013
- 2013-12-04 CN CN201320789462.7U patent/CN203661352U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108040395A (en) * | 2017-12-12 | 2018-05-15 | 黄焕珠 | A kind of direct-current LED headlamp of Width funtion high brightness |
| CN108184282A (en) * | 2017-12-12 | 2018-06-19 | 黄焕珠 | A kind of direct-current LED floodlight driver of Width funtion high brightness |
| CN111200891A (en) * | 2020-03-16 | 2020-05-26 | 长沙微笑美齿智能科技有限公司 | Constant-voltage control device and method for supplying power to root canal swinging washer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20141204 |
|
| EXPY | Termination of patent right or utility model |