CN101026917A - Solar LED lamp circuit - Google Patents
Solar LED lamp circuit Download PDFInfo
- Publication number
- CN101026917A CN101026917A CNA2006100241234A CN200610024123A CN101026917A CN 101026917 A CN101026917 A CN 101026917A CN A2006100241234 A CNA2006100241234 A CN A2006100241234A CN 200610024123 A CN200610024123 A CN 200610024123A CN 101026917 A CN101026917 A CN 101026917A
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- led
- diode
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 239000003381 stabilizer Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims abstract description 3
- 239000003990 capacitor Substances 0.000 abstract description 10
- 229910003307 Ni-Cd Inorganic materials 0.000 abstract description 3
- 229910018095 Ni-MH Inorganic materials 0.000 abstract description 3
- 229910018477 Ni—MH Inorganic materials 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
-
- 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
Abstract
Except solar cell, charging circuit, rechargeable battery, and some LEDs, the disclosed solar cell LED lamp circuit also includes high performance LED drive circuit, and particular sunlight detection control circuit and protection circuit for over discharging batteries (SDCODB). Using advanced pulse frequency modulation DC-to-DC voltage increase stabilizer as core, the LED drive circuit combines peripheral discrete devices handily to constitute circuit for driving LED by constant current. SDCODB is able to control switch by light, and protect batteries. The technical scheme makes the invention satisfy applications of single Ni-Cd or Ni-MH rechargeable battery even super capacitor as well as lets LED brightness driven reach to optimal, and operation time of battery reach to optimal also. Features are: compact circuit, very low consumption, full functions, and high performance and low cost.
Description
Technical field
The present invention relates to the open-air lighting device that uses in a kind of field, refer in particular to the circuit of solar LED (light-emitting diode) lamp, it belongs to the Application of Solar Energy category.
Background technology
Solar LED (Light Emitting Diode) lamp is a kind of environmental type lighting source that need not to come by traditional power supply unit work, it be applicable to family's garden, public place, pasture, grassland, geological prospecting part, field work group, whistle, national defence limit or the like those lack electric power or electric power supply with not convenient place.
Yet how to accomplish that function is complete, price Lian Ze is the main contents that the insider studies always.
Summary of the invention
The object of the present invention is to provide a kind of multiple functional, efficient and cheap solar LED lamp circuit.
A kind of solar LED lamp circuit provided by the present invention, comprise solar cell, rechargeable battery, charging circuit and several LED, it is characterized in that: further comprising sunlight detection control circuit and battery over-discharge protection circuit, led drive circuit, wherein: described solar cell one road is connected to charging circuit, and another road is connected to sunlight and detects control circuit and battery over-discharge protection circuit; Described charging circuit one road is connected to rechargeable battery, and another road is connected to sunlight and detects control circuit and battery over-discharge protection circuit and led drive circuit; The output that described sunlight detects control circuit and battery over-discharge protection circuit is connected to led drive circuit; Described led drive circuit outputs to LED.
In above-mentioned solar LED lamp circuit, led drive circuit is to be core and by having constituted the circuit with constant-current driving LED in conjunction with peripheral discrete devices inductance L, diode D3, capacitor C and resistance R 3 with pulse frequency modulated DC-DC voltage boosting pressurizer (hereinafter to be referred as IC), wherein: an end of inductance L connects the positive pole of rechargeable battery 5, and the other end connects the Lx end of IC, the positive pole of diode D3 and the positive pole of LED; The negative pole of diode D3 connects the Vout end of IC and an end of capacitor C; The other end of capacitor C connects an end of resistance R 3 and the negative pole of LED; The other end of resistance R 3 is connected to the GND end of IC and the negative pole of rechargeable battery 5; The CE end of IC is the chip controls end.
In above-mentioned solar LED lamp circuit, led drive circuit has adopted the pulsed drive mode.
In above-mentioned solar LED lamp circuit, sunlight detects control circuit and the battery over-discharge protection circuit is made up of transistor T, resistance R 2, diode D2 and current-limiting resistance R1, and wherein: the emitter of transistor T connects the positive pole of rechargeable battery; Collector electrode connects an end of resistance R 2, exports as the control of led drive circuit then; The other end of resistance R 2 connects the negative pole of rechargeable battery; The base stage of transistor T connects the positive pole of diode D2; The negative pole of diode connects the end of current-limiting resistance R1, and the other end of current-limiting resistance R1 connects the positive pole of solar cell.
In above-mentioned solar LED lamp circuit, the PN junction number of diode D2 satisfies calculating formula: (the round as a result of the total rechargeable battery cut-ff voltage of circuit-0.5V)/0.5V.
In above-mentioned solar LED lamp circuit, diode D2 is and the corresponding voltage-stabiliser tube of magnitude of voltage.
In above-mentioned solar LED lamp circuit, diode D2 is the transistor with PN junction feature.
In above-mentioned solar LED lamp circuit, between the collector electrode of resistance R 2 and transistor T, also connect a resistance R 4.
In above-mentioned solar LED lamp circuit, between the positive pole of the emitter of transistor T and rechargeable battery, also be connected a resistance R 4.
Because led drive circuit of the present invention has adopted advanced pulse frequency modulated DC-DC voltage boosting pressurizer as control circuit; and constituted circuit by ingenious in conjunction with peripheral discrete devices with constant-current driving LED, and sunlight to detect control circuit and battery over-discharge protection circuit be the circuit that can light-operated switch can protect battery again.The application of ultracapacitor so one aspect of the present invention has satisfied single-unit Ni-Cd or Ni-MH rechargeable battery also makes the LED brightness of driving reach best on the other hand, and the operating time of battery reaches best.Therefore, the present invention has had the circuit compactness, has consumed extremely low, multiple functional, efficient and cheap characteristics.
Description of drawings
Fig. 1 is the functional block diagram of solar LED lamp circuit of the present invention;
Fig. 2 is the electrical schematic diagram of solar LED lamp circuit of the present invention.
Embodiment
As shown in Figure 1; the circuit structure of solar LED (Light Emitting Diode) lamp of the present invention; divide from circuit function; except solar cell 4, rechargeable battery 5 and LED; this circuit mainly is made up of following three partial circuits, and promptly charging circuit 1, led drive circuit 3 and sunlight detect control circuit and battery over-discharge protection circuit 2.
Wherein:
Referring to Fig. 2, charging circuit 1 has adopted a low-loss diode D1, and its positive pole is connected to the positive pole of solar cell S, and negative pole is connected to the positive pole of rechargeable battery BT; The negative pole of solar cell S links to each other with the negative pole of rechargeable battery BT.Because Ni-Cd and Ni-MH rechargeable battery all have the anti-over-charging electricity, so this circuit does not need to add in addition the additives for overcharge protection circuit.
Led drive circuit 3 has adopted the controller of PFM STEP-UP DC/DCCONVERTER (pulse frequency modulated DC-DC voltage boosting pressurizer) (being designated hereinafter simply as PFM DC/DC boost-voltage regulator) the integrated circuit (IC) BL8530 of company of Shanghai Belling production as driving LED, since this IC built-in power transistor, expand stream so this circuit periphery need not to add power transistor in addition.By having formed function with constant-current driving LED in conjunction with peripheral discrete devices inductance L, diode D3, capacitor C and resistance R 3 etc.
One end of inductance L connects anode, and the other end connects the Lx end of IC, the positive pole of diode D3 and the positive pole of LED; The negative pole of diode D3 connects the Vout end of IC, an end of capacitor C; The other end of capacitor C connects an end of resistance R 3 and the negative pole of LED; The other end of resistance R 3 is connected to GND end and the battery cathode of IC; The CE of IC end is the chip opening end, during high level for opening.
When circuit start is worked, storing the required energy that boosts on the inductance L, capacitor C is storing the needed voltage of IC operate as normal, and 3 of resistance R to be current limliting use is overcurrent feedback usefulness.The excessive phenomenon of electric current appears in the LED that supposes output, this current signal must produce higher feedback voltage on R3, because the voltage on the capacitor C can not change moment, so the voltage of R3 adds the voltage of capacitor C and must be higher than original Vout voltage, so just caused that the IC internal circuit can detect output and have big electric current to occur, the IC internal control circuit will start PFM (pulse frequency modulated) mode of operation at once this moment, and output current is lowered.
In order to improve the luminous efficiency of LED, this led drive circuit has adopted the pulsed drive mode, this mode eliminated general in the DC driven mode the constant current form or the constant voltage form under the pressure drop that must produce of big electric current through Schottky diode, therefore greatly reduce the loss of entire circuit, improved the efficient of complete machine.
Owing to adopted the pulsed drive mode, so this circuit greatly reduces the coherence request of its forward conduction voltage drop of LED that parallel connection is used, the output of this circuit can directly drive the inconsistent same model LED of forward conduction voltage drop of a plurality of parallel connections, and does not need to be connected in series flows resistance in each LED loop.
Sunlight detects control circuit and battery over-discharge protection circuit 2, is actually a circuit that unites two into one.The emitter of transistor T connects the positive pole of battery; Collector electrode connects an end of resistance R 4; The other end of R4 connects resistance R 2, connects the CE end of IC then; The other end of resistance R 2 connects the negative pole of battery; The base stage b of transistor T connects the positive pole of diode D2; The negative pole of diode connects an end of resistance R 1; The other end of resistance R 1 connects the positive pole of solar cell.
It is to be noted the not necessarily single PN junction of diode D2, when rechargeable battery was single-unit, diode D2 was a PN junction; When rechargeable battery was binodal or more piece, diode D2 was a plurality of PN junctions; Its relationship is:
The PN junction number of D2=(the total rechargeable battery cut-ff voltage of circuit-0.5V)/0.5V
Result of calculation rounds after rounding up.
Herein, diode D2 also can be the corresponding voltage-stabiliser tube of magnitude of voltage, or the transistor with PN junction feature.
Principle of the present invention is: daytime, when The sun came up comes, voltage on the solar cell S rises gradually, because transistor T, diode D2 and resistance R 1 current in loop sharply descend, thereby the collector current that causes transistor T becomes very little, so the pressure drop on the resistance R 2 is very low, at this moment IC crosses low being closed because of the CE terminal voltage.At dusk, the sun sets, voltage on the solar cell S descends gradually, when having dropped to transistor T, diode D2 and resistance R 1 current in loop and increased fast, because it is big that the collector current of transistor T becomes, so the voltage on resistance R 2 uprises, at this moment IC is unlocked because of the CE terminal voltage raises, and the LED lamp is lighted this moment.
Night, along with LED lights work, voltage on the rechargeable battery BT will slowly descend thereupon, when cell voltage is discharged to 1V (is 0.8V for ultracapacitor), because the effect of PN junction, the Ib electric current of transistor T will descend fast, thereby cause transistor T to end, IC is quit work, so rechargeable battery BT just can be by overdischarge.
In actual applications also can be with the location swap of diode D2 and resistance R 1, its effect can not be changed.
In addition, circuit shown in Figure 2 also is feasible through some conversion, and such as resistance of adjunction between the emitter of transistor T and anode, its circuit function can not be changed; Also can be omitted under the not really high situation of complete machine performance requirement such as resistance R 4 again, between the emitter of the access transistor T that perhaps also resistance R 4 can be replaced and the anode or the like.
In order to reduce the peripheral components of this circuit, also in order further to reduce the cost of complete machine, the exploitation application-specific integrated circuit (ASIC) is possible simultaneously.Wherein can be with resistance R 1, R2, R4; Diode D2, D3; Devices such as transistor T and PFM DC/DC boost-voltage regulator IC integrate, perhaps also a part of peripheral components and PFM DC/DC boost-voltage regulator IC can be integrated, become a ASIC (integrated circuit of special-purpose) that is specifically applied to solar LED (Light Emitting Diode) lamp.
The exploitation dedicated devices also is possible.Both diode D2 and transistor T can be integrated, constitute new functional form transistor.
More than all embodiment only for the explanation the present invention usefulness, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong within the category of the present invention, should be limited by each claim, and include within the scope of claim.
Claims (9)
1. solar LED lamp circuit; comprise solar cell (4), rechargeable battery (5), charging circuit (1) and several LED; it is characterized in that: further comprising sunlight detection control circuit and battery over-discharge protection circuit (2), led drive circuit (3), wherein:
Described solar cell (4) a road is connected to charging circuit (1), and another road is connected to sunlight and detects control circuit and battery over-discharge protection circuit (2);
Described charging circuit (1) a road is connected to rechargeable battery (5), and another road is connected to sunlight and detects control circuit and battery over-discharge protection circuit (2) and led drive circuit (3);
The output that described sunlight detects control circuit and battery over-discharge protection circuit (2) is connected to led drive circuit (3);
Described led drive circuit (3) outputs to LED.
2. solar LED lamp circuit according to claim 1, it is characterized in that: described led drive circuit (3) be with pulse frequency modulated DC-DC voltage boosting pressurizer be core, and by having constituted circuit, wherein with constant-current driving LED in conjunction with peripheral discrete devices inductance (L), diode (D3), electric capacity (C) and resistance (R3):
One end of inductance (L) connects the positive pole of rechargeable battery (5), and the other end connects (Lx) switching tube output of IC, the positive pole of diode (D3), the positive pole of LED; The negative pole connection IC of diode (D3) (Vout) boosts and exports an end of test side, electric capacity (C); The other end of electric capacity (C) connects an end of resistance (R3), the negative pole of LED; The other end of resistance (R3) is connected to (GND) earth terminal of IC, the negative pole of rechargeable battery (5); (CE) end of IC is the chip controls end.
3. solar LED lamp circuit according to claim 2 is characterized in that: described led drive circuit (3) has adopted the pulsed drive mode.
4. solar LED lamp circuit according to claim 1; it is characterized in that: described sunlight detects control circuit and battery over-discharge protection circuit (2) is made up of transistor (T), resistance (R2), diode (D2) and current-limiting resistance (R1), wherein:
The emitter of transistor (T) connects the positive pole of rechargeable battery (5); Collector electrode connects an end of resistance (R2), exports as the control of led drive circuit (3) then; The other end of resistance (R2) connects the negative pole of rechargeable battery (5); The base stage of transistor (T) connects the positive pole of diode (D2); The negative pole of diode connects an end of current-limiting resistance (R1), and the other end of current-limiting resistance (R1) connects the positive pole of solar cell.
5. solar LED lamp circuit according to claim 4 is characterized in that: the PN junction number of described diode (D2) satisfies calculating formula: (the round as a result of the total rechargeable battery cut-ff voltage of circuit-0.5V)/0.5V.
6. solar LED lamp circuit according to claim 4 is characterized in that: described diode (D2) is and the corresponding voltage-stabiliser tube of magnitude of voltage.
7. solar LED lamp circuit according to claim 4 is characterized in that: described diode (D2) is the transistor with PN junction feature.
8. solar LED lamp circuit according to claim 4 is characterized in that: also connect a resistance (R4) between the collector electrode of described resistance (R2) and transistor (T).
9. solar LED lamp circuit according to claim 4 is characterized in that: also be connected a resistance (R4) between the positive pole of the emitter of described transistor (T) and rechargeable battery (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100241234A CN101026917B (en) | 2006-02-24 | 2006-02-24 | Solar LED lamp circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100241234A CN101026917B (en) | 2006-02-24 | 2006-02-24 | Solar LED lamp circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101026917A true CN101026917A (en) | 2007-08-29 |
| CN101026917B CN101026917B (en) | 2012-05-30 |
Family
ID=38744701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100241234A Expired - Fee Related CN101026917B (en) | 2006-02-24 | 2006-02-24 | Solar LED lamp circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101026917B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009152642A1 (en) * | 2008-06-18 | 2009-12-23 | Meng Zhong | An active self-luminous led lamp |
| CN101853547A (en) * | 2010-04-09 | 2010-10-06 | 北京交通大学 | Variable-frequency LED strobe warning device |
| CN102105007A (en) * | 2010-12-28 | 2011-06-22 | 河海大学常州校区 | LED constant-current driver with boosting function |
| CN101505565B (en) * | 2009-03-11 | 2012-01-25 | 华中科技大学 | SoC chip for independent photovoltaic LED lighting special controller |
| CN103391657A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Solar lawn lamp system based on DC/DC boosting voltage stabilizer |
| CN103391658A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Solar lawn lamp system |
| CN105402623A (en) * | 2015-09-08 | 2016-03-16 | 黄超发 | LED street vendor lamp which can prevent over-discharging and is driven by mobile charger |
| CN107196510A (en) * | 2017-07-28 | 2017-09-22 | 明见（厦门）技术有限公司 | A kind of booster circuit for cell switch control circuit |
| CN109309992A (en) * | 2018-10-26 | 2019-02-05 | 苏州菲达旭微电子有限公司 | A kind of ripple-free LED circuit of half pressure power supply |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2655586Y (en) * | 2003-10-14 | 2004-11-10 | 上海超日太阳能科技发展有限公司 | Solar controller for lamps |
-
2006
- 2006-02-24 CN CN2006100241234A patent/CN101026917B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009152642A1 (en) * | 2008-06-18 | 2009-12-23 | Meng Zhong | An active self-luminous led lamp |
| CN101505565B (en) * | 2009-03-11 | 2012-01-25 | 华中科技大学 | SoC chip for independent photovoltaic LED lighting special controller |
| CN101853547A (en) * | 2010-04-09 | 2010-10-06 | 北京交通大学 | Variable-frequency LED strobe warning device |
| CN101853547B (en) * | 2010-04-09 | 2011-08-03 | 北京交通大学 | Variable-frequency LED strobe warning device |
| CN102105007A (en) * | 2010-12-28 | 2011-06-22 | 河海大学常州校区 | LED constant-current driver with boosting function |
| CN102105007B (en) * | 2010-12-28 | 2013-08-07 | 河海大学常州校区 | LED constant-current driver with boosting function |
| CN103391657A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Solar lawn lamp system based on DC/DC boosting voltage stabilizer |
| CN103391658A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Solar lawn lamp system |
| CN105402623A (en) * | 2015-09-08 | 2016-03-16 | 黄超发 | LED street vendor lamp which can prevent over-discharging and is driven by mobile charger |
| CN107196510A (en) * | 2017-07-28 | 2017-09-22 | 明见（厦门）技术有限公司 | A kind of booster circuit for cell switch control circuit |
| CN107196510B (en) * | 2017-07-28 | 2023-05-26 | 明见（厦门）技术有限公司 | Boost circuit for battery switch control circuit |
| CN109309992A (en) * | 2018-10-26 | 2019-02-05 | 苏州菲达旭微电子有限公司 | A kind of ripple-free LED circuit of half pressure power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101026917B (en) | 2012-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101026917B (en) | Solar LED lamp circuit | |
| CN203363958U (en) | Hybrid energy storage type solar LED street lamp | |
| CN101815388A (en) | Led lamp control circuit and led lamp | |
| CN101709846A (en) | Device for lighting solar lawn | |
| CN202095145U (en) | Intelligent charging-discharging protection solar body infrared induction lamp | |
| CN202395487U (en) | Portable solar power supply | |
| CN103094975B (en) | A kind of battery charging circuit and LED lamp | |
| CN203632908U (en) | Solar lamp control device | |
| CN2884781Y (en) | Solar LED lamp circuit | |
| CN202488834U (en) | Led solar energy lawn lamp | |
| CN102164443A (en) | Controller for solar street lamp | |
| CN202218031U (en) | Off-grid type electric power input control system | |
| CN201860482U (en) | Charge and discharge control circuit and protection circuit of solar lamp | |
| CN101471570A (en) | Solar charging circuit | |
| CN202026509U (en) | Intelligent LED lamp | |
| CN101350530B (en) | Charger with illumination function | |
| CN1971125A (en) | Solar and AC charging dual-purpose energy-saving flashlight control circuit | |
| CN202857060U (en) | Solar energy lawn lamp | |
| CN203136294U (en) | A LED lamp control circuit with energy stored in a lithium battery | |
| CN103002631A (en) | Intelligent solar micro-computerized soft-drive constant-current source controller | |
| CN203072191U (en) | LED driving controller, lighting device and lighting system | |
| CN203119566U (en) | Solar charger for converting polycrystalline silicon and amorphous silicon solar cell panels with each other | |
| CN202817843U (en) | Lithium battery charging circuit which can be charged while using and is used on laser surveying and mapping instrument | |
| CN201986234U (en) | Solar street light controller | |
| CN201523467U (en) | Circuit for charging and discharging internally and externally by using USB interface and solar camping lamp circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI LEADCHIP MICROELECTRONICS CORP. LTD. Free format text: FORMER OWNER: BEILING CO LTD, SHANGHAI Effective date: 20110330 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200233 NO. 810, YISHAN ROAD, SHANGHAI TO: 200233 ROOM 401, BUILDING 1, NO. 810, YISHAN ROAD, SHANGHAI |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110330 Address after: 200233 room 1, building 810, No. 401, Shanghai, Yishan Road Applicant after: SHANGHAI LEADCHIP MICROELECTRONICS Corp.,Ltd. Address before: 200233 No. 810, Shanghai, Yishan Road Applicant before: SHANGHAI BELLING Corp.,Ltd. |
|
| 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: 20120530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |