CN201467514U - Solar LED drive control circuit for multiplexing DC/DC converter - Google Patents
Solar LED drive control circuit for multiplexing DC/DC converter Download PDFInfo
- Publication number
- CN201467514U CN201467514U CN2009200751062U CN200920075106U CN201467514U CN 201467514 U CN201467514 U CN 201467514U CN 2009200751062 U CN2009200751062 U CN 2009200751062U CN 200920075106 U CN200920075106 U CN 200920075106U CN 201467514 U CN201467514 U CN 201467514U
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- circuit
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- control circuit
- converter
- drive control
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model belongs to the technical field of lighting drive control, and in particular discloses a solar LED drive control circuit for multiplexing a DC/DC converter. The solar LED drive control circuit charges a storage battery and drives an LED by utilizing the same DC/DC converter so as to reduce circuit cost and circuit volume. A three segment charge method is adopted so as to effectively prolong the service life of the storage battery. The constant-current drive LED technology is adopted, so color coordinates cannot shift, and the service life of the LED is prolonged. The solar LED drive control circuit is suitable to be applied to solar LED lighting places.
Description
Technical field
The utility model belongs to illumination Drive Control Technique field, is specifically related to a kind of solar LED driving governor of multiplexing DC/DC converter.
Background technology
The semiconductor lighting technology is breeding a new Industrial Revolution again after having caused microelectronic revolution---the illumination revolution.Semiconductor lamp adopts light-emitting diode (LED) as new light sources, has high light efficiency, long-life, low pressure, point-source of light, environmental protection, advantages such as colour purity.The illumination of development New LED is an important directions of present light source and lighting technology development.
In recent years, people are increasing to the demand of the energy, and are also more and more higher to requirements of saving energy.Solar energy is also more and more wider as a kind of application of green energy resource, and extensive use has also been arranged in illumination, particularly in new light sources LED illumination a lot of application is arranged.
In the general solar LED illuminating system, solar cell control, charge in batteries control, LED drive controlling are to be controlled by controller separately respectively.Such system cost is higher, and also there is certain resistance in the popularization of LED lighting source.
Summary of the invention
The purpose of this utility model is to provide a kind of Drive and Control Circuit that can effectively reduce solar LED driver cost.
The solar energy LED drive control circuit that the utility model provides is to reach by multiplexing DC/DC converter to reduce system bulk, reduces the effect of driving governor.It is suitable for solar LED illumination applications.
The solar energy LED drive control circuit of the multiplexing DC/DC converter that the utility model proposes comprises: solar cell electric current, voltage sampling circuit 1, battery current, voltage sampling circuit 2, LED electric current, voltage sampling circuit 3, central control circuit 4, compound DC/DC translation circuit 5.Each several part is pressed following connection:
Solar cell electric current, voltage sampling circuit 1 are connected with central control circuit 4, battery current, voltage sampling circuit 2 are connected with central control circuit 4, LED current sampling circuit 3 is connected with central control circuit 4, central control circuit 4 is connected with compound DC/DC translation circuit 5, the operating state of control DC/DC translation circuit.
In compound DC/DC translation circuit 5, solar cell switch S 1, LED switch S 2 and storage battery selector switch S3 are arranged, solar cell switch S 1 is connected with solar cell, LED switch S 2 is connected with LED, storage battery selector S3 switch one end is connected with storage battery, and the other two ends of S3 are connected with the front-end and back-end of DC/DC converter respectively.
Above-mentioned each partly circuit all are prior aries, do not appear in the newspapers but each several part circuit such as the utility model mode connected as yet.Can be achieved as follows function by the utility model foregoing circuit structure:
By day sunshine abundance situation under, central control circuit 4 detects the operating state of solar cell by solar cell electric current, voltage sampling circuit 1, by battery current, the compound DC/DC translation circuit 5 of voltage sampling circuit 2 FEEDBACK CONTROL, make the electrical power storage of solar cell generation in storage battery by maximal power tracing algorithm and syllogic mise-a-la-masse method.
Night all the time according under the situation, by the compound DC/DC translation circuit 5 of LED current sampling circuit 3 FEEDBACK CONTROL, adopt constant-current driving that storage battery is released energy to LED, make LED luminous.
The utility model is by the working point of current feedback circuit adjusting constant-current drive circuit, and to the constant electric current of LED output, driving LED is sent stable light.
The utility model compared with prior art has following advantage:
1) utilizes same DC/DC converter to carry out charge in batteries and driving LED, reduced circuit cost, reduced the circuit volume.
2) adopt the syllogic mise-a-la-masse method, can effectively prolong the life of storage battery.
3) adopt the constant-current driving LED technology, can obtain identical light intensity and color, continue to be consistent in the forward current of each LED that flows through, thereby hue coordinate can not be offset;
Number in the figure: 1 is solar cell electric current, voltage sampling circuit, and 2 is battery current, voltage sampling circuit, and 3 is LED electric current, voltage sampling circuit, 4 is central control circuit, and 5 is compound DC/DC translation circuit, and 6 is solar cell, 7 is storage battery, and 8 is LED, and 9 is the DC/DC converter.
Description of drawings
Fig. 1 is a system architecture diagram of the present utility model.
Fig. 2 is a compound DC/DC circuit structure diagram of the present utility model.
Fig. 3 is the circuit structure diagram of the utility model example.
Embodiment
Example below in conjunction with accompanying drawing and inventor provide is described in further detail the utility model.
Referring to Fig. 1～3, according to the technical solution of the utility model, by day sunshine abundance situation under, solar cell can produce voltage signal, central control circuit 4 is by the solar cell electric current, voltage sampling circuit 1 detects solar cell and is in normal operating conditions, central control circuit 4 sends signal closes S1, disconnect S2, S3 is received on the B contact, pass through battery current, the compound DC/DC translation circuit 5 of voltage sampling circuit 2 FEEDBACK CONTROL makes the electrical power storage of solar cell generation in storage battery by maximal power tracing algorithm and syllogic mise-a-la-masse method.
Night all the time according under the situation, solar cell does not receive illumination, the output of no-voltage electric current, central control circuit 4 detects solar cell by solar cell electric current, voltage sampling circuit 1 and is in the unglazed state that shines, and central control circuit 4 sends signals and disconnects S1, closed S2, S3 is received on the A contact, by the compound DC/DC translation circuit 5 of LED current sampling circuit 3 FEEDBACK CONTROL, adopt constant-current driving that storage battery is released energy to LED, make LED luminous.
Claims (2)
1. the solar energy LED drive control circuit of a multiplexing DC/DC converter, it is characterized in that, this circuit has: solar cell electric current, voltage sampling circuit (1), battery current, voltage sampling circuit (2), LED electric current, voltage sampling circuit (3), central control circuit (4), compound DC/DC translation circuit (5), and press following connection:
Solar cell electric current, voltage sampling circuit (1) are connected with central control circuit (4), battery current, voltage sampling circuit (2) are connected with central control circuit (4), LED current sampling circuit (3) is connected with central control circuit (4), central control circuit (4) is connected with compound DC/DC translation circuit (5), the operating state of control DC/DC translation circuit.
2. the solar energy LED drive control circuit of compound DC/DC converter as claimed in claim 1, it is characterized in that, described compound DC/DC translation circuit (5) has: solar cell switch (S1), LED switch (S2), storage battery selector switch (S3) and DC/DC converter, and press following connection: solar cell switch (S1) is connected with solar cell, LED switch (S2) is connected with LED, storage battery selector switch (S3) end is connected with storage battery, and two ends are connected with the front-end and back-end of DC/DC converter respectively in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200751062U CN201467514U (en) | 2009-07-23 | 2009-07-23 | Solar LED drive control circuit for multiplexing DC/DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200751062U CN201467514U (en) | 2009-07-23 | 2009-07-23 | Solar LED drive control circuit for multiplexing DC/DC converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201467514U true CN201467514U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200751062U Expired - Fee Related CN201467514U (en) | 2009-07-23 | 2009-07-23 | Solar LED drive control circuit for multiplexing DC/DC converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201467514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105940768A (en) * | 2014-01-08 | 2016-09-14 | 飞利浦灯具控股公司 | Converter between solar panel, source and load |
| CN111869086A (en) * | 2018-12-29 | 2020-10-30 | 华为技术有限公司 | Inverter |
-
2009
- 2009-07-23 CN CN2009200751062U patent/CN201467514U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105940768A (en) * | 2014-01-08 | 2016-09-14 | 飞利浦灯具控股公司 | Converter between solar panel, source and load |
| CN111869086A (en) * | 2018-12-29 | 2020-10-30 | 华为技术有限公司 | Inverter |
| CN111869086B (en) * | 2018-12-29 | 2022-07-12 | 华为数字能源技术有限公司 | Inverter |
| US11637431B2 (en) | 2018-12-29 | 2023-04-25 | Huawei Digital Power Technologies Co., Ltd. | Inverter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100512 Termination date: 20120723 |