CN101207308A - Solar energy module using capacitor with high power and ultra-high capacitance - Google Patents
Solar energy module using capacitor with high power and ultra-high capacitance Download PDFInfo
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- CN101207308A CN101207308A CNA2006101477282A CN200610147728A CN101207308A CN 101207308 A CN101207308 A CN 101207308A CN A2006101477282 A CNA2006101477282 A CN A2006101477282A CN 200610147728 A CN200610147728 A CN 200610147728A CN 101207308 A CN101207308 A CN 101207308A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 62
- 238000004146 energy storage Methods 0.000 claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims description 10
- 210000001367 artery Anatomy 0.000 claims description 5
- 210000003462 vein Anatomy 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 2
- 229910018095 Ni-MH Inorganic materials 0.000 claims description 2
- 229910018477 Ni—MH Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 229910001416 lithium ion Inorganic materials 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims description 2
- 230000001052 transient effect Effects 0.000 claims description 2
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical group [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000011022 opal Substances 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 230000009183 running Effects 0.000 description 2
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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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
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to a solar module that uses a high-power ultra-high-capacity capacitor, and comprises a solar battery, the high-power ultra-high-capacity capacitor that is paralleled to two ends of the solar battery, a voltage-booster circuit with one end connected with a common port of the solar battery and the capacitor after being connected with a control circuit in parallelism and with the other end connected with one end of an energy-storage device, a control circuit with one end connected with a common port of the solar battery and the capacitor after being connected with the voltage-booster circuit in parallelism and with the other end connected with one end of the energy-storage device, and the energy-storage device with one end connected with the common port of the control circuit and the voltage-booster circuit and with the other end connected with the other common port of the solar battery and the capacitor. The invention resolves the problems that the solar energy cannot be inputted stably and the small electric power cannot be stored to be converted into the electric power for the variation of the sunshine environment. The invention improves the solar photoelectric conversion efficiency, and has much wider and stable application range and favors the popularization of the nuisanceless pollution and the clean energy in the daily life.
Description
[technical field]
The present invention relates to a kind of solar energy module, the solar photovoltaic conversion efficient that particularly can gain, the solar energy module of the use capacitor with high power and ultra-high capacitance of raising solar energy equipment energy-absorbing effect.
[background technology]
Fossil energy (as: coal, oil or uranium etc.) has region, ore deposit storage and contaminative, and be the accumulation in 1 years, need to drop into a large amount of manpower and materials exploitations, cause the ecological great calamity that to remove benefit most probably once polluting, therefore free of contamination alternative energy source research, various countries all actively launch, and wherein inexhaustible and pollution-free problem is the research of solar energy.
Solar energy is the clean free of contamination energy, has and does not have exhausted dangerous, nuisanceless, the restriction that is not subjected to the resource distribution region, can source quality height, the suitable portable type energy and obtain advantages such as the energy takes a short time.Because semiconductor and light-emitting diode (LED) technology is increasingly mature, Application of Solar Energy is further strengthened especially, is widely used in low power electronics product and solar power generation.
General known low-power solar product partly partly is made up of with discharge charging, by solar cell electrical power storage to battery is constituted charging partly, again through battery discharge to load, this load is carried in the daily life as solar energy flower garden lamp, solar energy direction board, solar energy traffic and constructing device, solar charger or solar electric torch, solar energy broadcast receiver, solar energy toy etc., to reduce the use amount of dry cell.
For instance, solar cell application mainly is made up of solar cell 10, charge controller 11, rechargeable battery 12 and load 13 (bulb or light-emitting diode) in LED load circuit (as shown in Figure 1).Solar cell 10 produces electric energy through opto-electronic conversion, by charge controller 11 controlling mechanisms with electrical power storage in rechargeable battery 12.Solar cell 10 is that the luminosity of detecting context changes on the other hand, and will to change by rechargeable battery can't produce enough electric energy the time be discharge mechanism in dim, the energy of offered load 13.
Yet there is two large problems in the solar energy system on using:
Solar energy is the unsettled energy.The opto-electronic conversion that solar cell produced can change with a day luminous intensity with Changes in weather, solar incident angle degree, daylight shade, causes concussion under the charging voltage (electric current).
Because of the incident ray deficiency, it is faint that solar cell produces the voltage (electric current) of giving birth to, and can't charge to battery (internal resistance of cell is excessive) when early morning and dusk, and void depletes the electricity conversion energy.On one day daytime of 12 hours nearly, can utilize only about 3.5 hours sunshine, and its energy loss is very huge.
At foregoing problems, as U.S. Pat P 4,634,953 and USP 5,782,552.Disclosed and used the substituent of large value capacitor as rechargeable battery in the solar energy system, intention solves battery life, safeguards the technological means of problems such as replacement, this large bulk capacitance is the capacitor with high power and ultra-high capacitance of energy release type, has the capacitance of farad level.Its equivalent series resistance (ESR) but still has several ohm to tens of ohm though be lower than battery, and is in straitened circumstances for the energy-absorbing of solar energy, do not have too big help.The capacitance of energy release type capacitor with high power and ultra-high capacitance is as too little, and then equivalent series resistance is too big, energy all the conversion between with thermal energy consumption; But capacitance is too big, and then many again energy are stored in the capacitor with high power and ultra-high capacitance, loses and can't utilize with the self discharging ease.
[summary of the invention]
Technical problem to be solved by this invention is to overcome existing defective in the above-mentioned prior art, promptly solve sunshine because of landform, weather, shade and environmental change, cause unstable energy input of solar energy and little electric energy can't store the problem that transfers electric energy to, and a kind of solar energy module that uses capacitor with high power and ultra-high capacitance is provided.
Technical solution of the present invention comprises:
One group of solar cell, this solar cell are luminous energy and electric energy transition components;
A capacitor with high power and ultra-high capacitance, this capacitor is attempted by the solar cell two ends, collects the electric energy that solar cell is changed, and maybe can't change in solar cell conversion usefulness is low the time, the electric energy that stores is released into energy storage device;
A booster circuit, this booster circuit and control circuit also connect, and the one end is connected with a common port of solar cell and capacitor with high power and ultra-high capacitance, and the other end is connected with an end of energy storage device, promotes condenser voltage so that energy storage device is charged;
A control circuit, this control circuit and booster circuit also connect, the one end is connected with a common port of solar cell and capacitor with high power and ultra-high capacitance, and the other end is connected with an end of energy storage device, and the control solar cell deposits electric energy in energy storage device under strong sunshine;
An energy storage device, this energy storage device one end is connected with the common port of control circuit and booster circuit, the other end is connected with another common port of solar cell and capacitor with high power and ultra-high capacitance, in order to store electrical energy and be supplied to the main power supply of load operation.
The present invention has been owing to adopted the said structure scheme, at sunshine when sufficient, when solar cell is stable and abundant to capacitor with high power and ultra-high capacitance, energy storage device charging and provide load required electric energy; When the deficiency at sunshine, electric energy that solar cell produces through the capacitor with high power and ultra-high capacitance of very low internal resistance through the booster circuit energy storage to energy storage device, make traditional solar energy circuit module be considered as unserviceable little electric energy and deposit in through this, improved solar energy module efficient.
No matter the power of illumination in addition, the electric energy that solar cell produced all stores up the capacitor with high power and ultra-high capacitance into low internal resistance and high power, treats that capacitor with high power and ultra-high capacitance fills to charge to energy storage device through booster circuit again after full.So can overcome sunlight negative factors such as unstable input, input voltage shake because of landform, weather, shade, environmental change cause, charge efficiency is low.
In sum, the present invention solves sunshine because of landform, weather, shade and environmental change, cause the unstable energy input of solar energy can't store the problem that transfers electric energy to little electric energy, promote the photoelectric conversion efficiency of solar energy, improve the solar energy equipment energy-absorbing effect, make application category more extensive, stable, help to promote nuisanceless pollution and clean energy source use in daily life.The present invention especially be fit to bad weather, cloudy, climate change is big, the hours of daylight is low and high latitude area, more can give full play of effect.
[description of drawings]
Fig. 1 is the circuit block diagram for known solar energy module;
Fig. 2 is circuit block diagram of the present invention;
Fig. 3 is the basic diagram for Fig. 2;
Fig. 4 is operation principle block diagram of the present invention;
Fig. 5 is another operation principle block diagram of the present invention.
Each sequence number is expressed as respectively among the figure:
10-solar cell 11-charge controller 12-rechargeable battery
13-load 20-solar energy module 21-solar cell
22-capacitor with high power and ultra-high capacitance 23-control circuit 24-booster circuit
25-energy storage device 26-load
[embodiment]
The invention will be further described below in conjunction with embodiment and accompanying drawing.
Please consult Fig. 2 and Fig. 3 simultaneously, solar energy module 20 of the present invention comprises.
One group of solar cell 21, this solar cell are luminous energy and electric energy transition components.
A capacitor with high power and ultra-high capacitance 22, this capacitor 22 is attempted by solar cell 21 two ends, collects the electric energy that solar cell 21 is changed, and the conversion usefulness are low maybe can't change the time in solar cell 21, and the electric energy that stores is released into energy storage device 25.
High power capacitor with high power and ultra-high capacitance 22 of the present invention is to have the gold capacitor of high-energy and high power density or the aluminium electrolytic capacitor of high capacitance, or has the capacitor of the transient high power release type of low internal resistance, high power density.As ceramic condenser, electrochemical capacitor, tantalum electric capacity etc., it is thousands of to tens thousand of times that its capacitance is higher than general capacitor, can distinguish instantaneous power type and energy release type capacitor with high power and ultra-high capacitance according to purposes, the energy release type can have thousands of farads of high capacitances and can be used as battery use, and the capacitance of instantaneous power type capacitor with high power and ultra-high capacitance is at millifarad (mF) and between several farads, the big output output characteristic of tool immediate current especially has more little electric current input accumulative effect to solar energy system.In preferred embodiment of the present invention, this high power capacitor with high power and ultra-high capacitance 22 is to be used for the electric current electric energy that can't import energy storage device 25.
A control circuit 23, this control circuit 23 and booster circuit 24 also connect, the one end is connected with a common port of solar cell 21 and capacitor with high power and ultra-high capacitance 22, the other end is connected with an end of energy storage device 25, and control solar cell 21 deposits electric energy in energy storage device 25 under strong sunshine.The form of the present invention and indefinite control circuit 23, charge controller comprising the charging control of deciding electric current, high efficiency charging control or tool maximum power point tracking system, visual finished product price and Demand Design decision, the present invention is the simple control (as shown in Figure 3) of making to decide electric current with a diode for asking simple illustration.
A booster circuit 24, this booster circuit 24 and control circuit 23 also connect, the one end is connected with a common port of solar cell 21 and capacitor with high power and ultra-high capacitance 22, and the other end is connected with an end of energy storage device 25, in order to promote capacitor with high power and ultra-high capacitance 22 voltages.This booster circuit 24 is for a kind of low-power arteries and veins fills the formula booster circuit, promotes charge efficiency.This booster circuit 24 can be that transformer, charge pump etc. are all had an arteries and veins and filled formula boosting booster circuit.For in high-power solar energy system also can use feed-back type, flyback booster circuit.
An energy storage device 25, these energy storage device 25 1 ends are connected with the common port of control circuit 23 with booster circuit 24, the other end is connected with another common port of solar cell 21 and capacitor with high power and ultra-high capacitance 22, in order to store electrical energy and be supplied to the main power supply of load 26 running.But this energy storage device 25 comprises at least one recharge formula rechargeable battery, can be according to load, size and cost requirement, and decision rechargeable battery kind and battery sizes and quantity.General chargeable battery comprises NI-G, ni-mh, lithium ion, lithium macromolecule, plumbic acid etc., these battery varieties are for low power system in the solar energy, and NI-G has pollution problem, and lithium battery is comparatively expensive, lead-acid battery is bulky and heavy, and more suitable with ni-mh.Therefore with regard to commodity market, often with the ni-mh series connection of 3 1.2V, solar energy traffic opal then is the Ni-MH battery power supply of 1 1.2V to solar energy flower garden lamp.
One load 26 is that the normal commodity of using are the solar energy LED lamp, have comprised flower garden lamp, indicator light, warning lamp, red signal lamp used by rail workers, opal etc., all are to supply led lighting or be designated as the master by energy storage device 25 supply electric energy runnings.With luminous color, the driving voltage of gold-tinted, red light-emitting diode is 2～3V, and blue light and white light emitting diode then are 3～4V, the light-emitting diode quantity that is connected the more, required electric current the more, relative energy loss is faster.Except aforementioned be the load with the light-emitting diode, solar energy module 20 of the present invention also can be used for solar charger, solar energy toy, solar electric torch, solar energy broadcast receiver, the audio-visual (CD of solar energy, VCD, DVD), the solar product of solar energy hand tool or middle low power demand.
Below sketch operation principle of the present invention and operating mode:
As shown in Figure 4, a kind of operation principle of the present invention and operating mode are: solar cell 21 is assemblies of luminous energy and electric energy conversion, according to the demand string of energy storage device 25 and load 26 and solar cell 21 required area and voltage.Solar cell 21 also can be detected the brightness of environment, so judge strong sunshine or in low sunshine, when the abundance at sunshine, what solar cell 21 was stable and abundant provides energy storage device 25 energy.When the deficiency at sunshine, solar cell 21 electric energy that produces through the capacitor with high power and ultra-high capacitance 22 of very low internal resistance through booster circuit 24 energy storage to energy storage device 25, these little electric energy that disappear originally deposit energy storage device 25 in through this, have improved solar energy module 20 efficient.Even in the load of accepting 26 as solar energy flower garden lamp or solar alarming and traffic sign, also can utilize solar cell 21 detecting to arrive night, make system enter discharge condition and light light-emitting diode or bulb even load.In addition, the detecting of ambient brightness also can utilize light-sensitive unit to carry out.
As shown in Figure 5, another kind of operation principle of the present invention and operating mode are: solar cell 21 is after solar light irradiation produces electric energy, charge to capacitor with high power and ultra-high capacitance 22, no matter this moment, the electric current of the various intensity that the illumination power is produced was all collected because of the low internal resistance of capacitor with high power and ultra-high capacitance 22, treat that capacitor with high power and ultra-high capacitance 22 fills to charge to energy storage device 25 through charging control circuit 23, booster circuit 24 again after full.And for energy storage device 25, charging this moment is that a kind of arteries and veins fills the formula charging, not changed by unsettled solar energy, more promotes charge efficiency because of arteries and veins fills the formula charging, and solar energy system absorbing light energy efficiency is greatly improved.Same, this energy storage device 25 also discharges in different load 26 at different solar products.
In sum, the present invention solves sunshine because of landform, weather, shade and environmental change, cause the unstable energy input of solar energy can't store the problem that transfers electric energy to little electric energy, promote the photoelectric conversion efficiency of solar energy, improve the solar energy equipment energy-absorbing effect, make application category more extensive, stable, help to promote nuisanceless pollution and clean energy source use in daily life.
Claims (10)
1. solar energy module that uses capacitor with high power and ultra-high capacitance comprises:
One group of solar cell, this solar cell are luminous energy and electric energy transition components;
A capacitor with high power and ultra-high capacitance, this capacitor is attempted by the solar cell two ends, collects the electric energy that solar cell is changed, and maybe can't change in solar cell conversion usefulness is low the time, the electric energy that stores is released into energy storage device;
A booster circuit, this booster circuit and control circuit also connect, and the one end is connected with a common port of solar cell and capacitor with high power and ultra-high capacitance, and the other end is connected with an end of energy storage device, promotes condenser voltage so that energy storage device is charged;
A control circuit, this control circuit and booster circuit also connect, the one end is connected with a common port of solar cell and capacitor with high power and ultra-high capacitance, and the other end is connected with an end of energy storage device, and the control solar cell deposits electric energy in energy storage device under strong sunshine;
An energy storage device, this energy storage device one end is connected with the common port of control circuit and booster circuit, the other end is connected with another common port of solar cell and capacitor with high power and ultra-high capacitance, in order to store electrical energy and be supplied to the main power supply of load operation.
2. the solar energy module of use capacitor with high power and ultra-high capacitance according to claim 1 is characterized in that: wherein this control circuit comprises the charge controller of the charging control, high efficiency charging control or the tool maximum power point tracking system that decide electric current.
3. the solar energy module of use capacitor with high power and ultra-high capacitance according to claim 1 is characterized in that: wherein this capacitor with high power and ultra-high capacitance is to have the gold capacitor of high-energy and high power density or the aluminium electrolytic capacitor of high capacitance.
4. the solar energy module of use capacitor with high power and ultra-high capacitance according to claim 1 is characterized in that: wherein this capacitor with high power and ultra-high capacitance is the capacitor with transient high power release type of low internal resistance, high power density.
5. the solar energy module of use capacitor with high power and ultra-high capacitance according to claim 1 is characterized in that: wherein this booster circuit is that the low-power arteries and veins fills the formula booster circuit.
6. the solar energy module of use capacitor with high power and ultra-high capacitance according to claim 5 is characterized in that: wherein this booster circuit is a transformer.
7. the solar energy module of use capacitor with high power and ultra-high capacitance according to claim 5 is characterized in that: wherein this booster circuit is a charge pump booster circuit.
8. the solar energy module of use capacitor with high power and ultra-high capacitance according to claim 5 is characterized in that: wherein this booster circuit is feed-back type or flyback booster circuit.
9. the solar energy module of use capacitor with high power and ultra-high capacitance according to claim 1 is characterized in that: but wherein this energy storage device is to comprise at least one recharge formula rechargeable battery.
10. the solar energy module of use capacitor with high power and ultra-high capacitance according to claim 9 is characterized in that: wherein this energy storage device is nickel-cadmium cell, Ni-MH battery, lithium ion battery, lithium macromolecule battery or lead-acid battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101477282A CN101207308A (en) | 2006-12-21 | 2006-12-21 | Solar energy module using capacitor with high power and ultra-high capacitance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101477282A CN101207308A (en) | 2006-12-21 | 2006-12-21 | Solar energy module using capacitor with high power and ultra-high capacitance |
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| Publication Number | Publication Date |
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| CN101207308A true CN101207308A (en) | 2008-06-25 |
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| CNA2006101477282A Pending CN101207308A (en) | 2006-12-21 | 2006-12-21 | Solar energy module using capacitor with high power and ultra-high capacitance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625518A (en) * | 2011-01-28 | 2012-08-01 | 沛亨半导体股份有限公司 | Driving circuit capable of improving electric energy conversion efficiency and driving method thereof |
| CN102761140A (en) * | 2011-04-25 | 2012-10-31 | 薛文梅 | Novel solar charger |
| CN111857228A (en) * | 2020-07-27 | 2020-10-30 | 合肥工业大学 | A system and method for micro-energy harvesting using on-chip photovoltaic cells |
-
2006
- 2006-12-21 CN CNA2006101477282A patent/CN101207308A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625518A (en) * | 2011-01-28 | 2012-08-01 | 沛亨半导体股份有限公司 | Driving circuit capable of improving electric energy conversion efficiency and driving method thereof |
| CN102625518B (en) * | 2011-01-28 | 2014-06-04 | 沛亨半导体股份有限公司 | Driving circuit capable of improving electric energy conversion efficiency and driving method thereof |
| CN102761140A (en) * | 2011-04-25 | 2012-10-31 | 薛文梅 | Novel solar charger |
| CN111857228A (en) * | 2020-07-27 | 2020-10-30 | 合肥工业大学 | A system and method for micro-energy harvesting using on-chip photovoltaic cells |
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Open date: 20080625 |