CN201351858Y - Solar energy LED driver with slow-starting circuit - Google Patents
Solar energy LED driver with slow-starting circuit Download PDFInfo
- Publication number
- CN201351858Y CN201351858Y CNU2009201143435U CN200920114343U CN201351858Y CN 201351858 Y CN201351858 Y CN 201351858Y CN U2009201143435 U CNU2009201143435 U CN U2009201143435U CN 200920114343 U CN200920114343 U CN 200920114343U CN 201351858 Y CN201351858 Y CN 201351858Y
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- circuit
- led
- slow start
- slow
- current control
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Abstract
The utility model relates to a solar energy LED driver with a slow-starting circuit, which comprises a solar panel, a charging part circuit, a lithium battery, a driving circuit, a constant current control circuit and an LED lamp, and the LED driver is characterized by also comprising a slow-starting circuit which is respectively connected with the driving circuit and the constant current control circuit electrically; and the slow-starting circuit comprises an operational amplifier, a resistance-capacitance network, a voltage follower and an adjustable voltage reference source, and is used for leading load LED current to increase gradually when the driver is started to turn on the LED. The solar energy LED driver has the beneficial effects that the structure of the slow-starting circuit, which is simple and feasible and has low cost and high reliability is designed for the solar energy LED driver, thus avoiding the damage of heavy impact current to the LED lamp when the driver is started and effectively protecting the LED lamp.
Description
Technical field
The utility model belongs to electronic information field, particularly a kind of be used for photovoltaic and LED lighting field have a slow start circuit solar LED driver.
Background technology
Solar energy is a kind of green energy resource of cleaning, and semiconductor light-emitting-diode (LED) also is a kind of environmental protection, energy-conservation, solid-state electric light source efficiently.As real inexhaustible clean energy resource on the earth, solar energy will be following optimal green novel energy source, and be to utilize photovoltaic power generation technology that conversion of solar energy is electric energy to the effective way of its utilization at present.LED is a kind of semiconductor devices that electric energy can be converted into visible light, the characteristics that rely on its saving power and preventing pollution to dye have applied in the lighting field of a lot of industries, the solar LED illuminating system of therefore integrated solar energy power generating and LED solid-state illumination advantage, realized the perfect adaptation of the energy of new generation and new type light source, it will be a revolution on the human illumination history that led light source is widely used in lighting field.But that being extensive use of of solar LED illumination still exists is fragile, cost is higher, environment for use is restricted and perfect inadequately or the like the many problems of technology.The dash current in LED lamp source is big when especially starting shooting, and dash current big during start is comparatively serious to the degree of impairment in LED lamp source.
The utility model content
The utility model is to overcome above-mentioned weak point; purpose is to provide the slow start circuit structure of a kind of simple and feasible, low cost, highly reliable solar LED driver; big dash current is to the damage in LED lamp source when having prevented start; protect LED lamp source effectively, solved problems of the prior art.
The utility model is to achieve the above object by the following technical programs: a kind of slow start circuit solar LED driver that has, comprise solar panel, live part circuit, lithium battery, drive circuit, constant-current control circuit and LED lamp, the live part circuit is connected with solar panel, lithium battery respectively, and the live part circuit is used for the charging to lithium battery; Drive circuit is electrically connected with solar panel, lithium battery, constant-current control circuit, LED lamp respectively, constant-current control circuit is electrically connected with the LED lamp, also include the slow start circuit, the slow start circuit is electrically connected with drive circuit, constant-current control circuit respectively, described slow start circuit comprises operational amplifier, resistance-capacitance network, voltage follower and adjustable voltage a reference source, is used for when LED is lighted in start load LED electric current being risen gradually.
Described slow start circuit comprises operational amplifier, resistance-capacitance network, voltage follower and adjustable voltage a reference source, be input to the in-phase input end of voltage follower during hysteresis comparator U10 output high level through resistance-capacitance network C8, D15, R26, R49, D16, through the REF pin that D9, R53 are input to U9, constitute the slow start circuit through voltage follower U11B output with R54, R55, U9, R56, R57, R58.
The beneficial effects of the utility model: the utility model has designed the slow start circuit structure of simple and feasible, low cost, highly reliable solar LED driver in the solar LED driver; big dash current is to the damage in LED lamp source when having prevented start; protect LED lamp source effectively, solved problems of the prior art.
Description of drawings
Fig. 1 is the structured flowchart of solar LED driver;
Fig. 2 is the circuit reason figure of slow start circuit in the solar LED driver and constant-current control circuit;
Among the figure: 1-slow start circuit; The 2-constant-current control circuit;
The specific embodiment
The utility model is further described by embodiment below in conjunction with accompanying drawing:
As shown in Figure 1 and Figure 2, a kind of slow start circuit solar LED driver that has, comprise solar panel, live part circuit, lithium battery, drive circuit, slow start circuit 1, constant-current control circuit 2 and LED lamp, the live part circuit is connected with solar panel, lithium battery respectively, and the live part circuit is used for the charging to lithium battery; Drive circuit is electrically connected with solar panel, lithium battery, constant-current control circuit, LED lamp respectively, constant-current control circuit is electrically connected with the LED lamp, the slow start circuit is electrically connected with drive circuit, constant-current control circuit respectively, described slow start circuit comprises operational amplifier, resistance-capacitance network, voltage follower and adjustable voltage a reference source, is used for when LED is lighted in start load LED electric current being risen gradually.
Described slow start circuit comprises operational amplifier, resistance-capacitance network, voltage follower and adjustable voltage a reference source, be input to the in-phase input end of voltage follower during hysteresis comparator U10 output high level through resistance-capacitance network C8, D15, R26, R49, D16, through the REF pin that D9, R53 are input to U9, constitute the slow start circuit through voltage follower U11B output with R54, R55, U9, R56, R57, R58.
The utility model has designed the slow start circuit structure of simple and feasible, low cost, highly reliable solar LED driver in the solar LED driver; big dash current is to the damage in LED lamp source when having prevented start; protect LED lamp source effectively, solved problems of the prior art.
Above described be specific embodiment of the utility model and the know-why used; if comply with the change that conception of the present utility model is done; when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, must belong to protection scope of the present invention.
Claims (2)
1, a kind of slow start circuit solar LED driver that has, comprise solar panel, live part circuit, lithium battery, drive circuit, constant-current control circuit and LED lamp, the live part circuit is connected with solar panel, lithium battery respectively, and the live part circuit is used for the charging to lithium battery; Drive circuit is electrically connected with solar panel, lithium battery, constant-current control circuit, LED lamp respectively, constant-current control circuit is electrically connected with the LED lamp, it is characterized in that also including the slow start circuit, the slow start circuit is electrically connected with drive circuit, constant-current control circuit respectively, described slow start circuit comprises operational amplifier, resistance-capacitance network, voltage follower and adjustable voltage a reference source, is used for when LED is lighted in start load LED electric current being risen gradually.
2, a kind of slow start circuit solar LED driver that has according to claim 1, it is characterized in that, when exporting high level by hysteresis comparator U10, described slow start circuit is input to the in-phase input end of voltage follower through resistance-capacitance network C8, D15, R26, R49, D16, through the REF pin that D9, R53 are input to U9, constitute the slow start circuit through voltage follower U11B output with R54, R55, U9, R56, R57, R58.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201143435U CN201351858Y (en) | 2009-02-23 | 2009-02-23 | Solar energy LED driver with slow-starting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201143435U CN201351858Y (en) | 2009-02-23 | 2009-02-23 | Solar energy LED driver with slow-starting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201351858Y true CN201351858Y (en) | 2009-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201143435U Expired - Fee Related CN201351858Y (en) | 2009-02-23 | 2009-02-23 | Solar energy LED driver with slow-starting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201351858Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241004A (en) * | 2013-05-15 | 2013-08-14 | 珠海天威技术开发有限公司 | Ink box chip and light emitting display method thereof as well as ink box |
-
2009
- 2009-02-23 CN CNU2009201143435U patent/CN201351858Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241004A (en) * | 2013-05-15 | 2013-08-14 | 珠海天威技术开发有限公司 | Ink box chip and light emitting display method thereof as well as ink box |
| CN103241004B (en) * | 2013-05-15 | 2015-02-25 | 珠海天威技术开发有限公司 | Ink box chip and light emitting display method thereof as well as ink box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU EBOY HI-TECH ELECTRICAL APPLIANCE CO., LT Free format text: FORMER OWNER: HANGZHOU HIKLP ELECTRONICS CO., LTD. Effective date: 20120121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120121 Address after: 310012 Zhejiang province Xihu District Macheng Road No. 36 Patentee after: Hangzhou Eboylamp Electronics Co.,Ltd. Address before: Ma Cheng Road Hangzhou City, Zhejiang province 310012 No. 36 Patentee before: Hangzhou Hiklp Electronics Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091125 Termination date: 20160223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |