CN1052120C - Solar power supply unit for battery operated device - Google Patents
Solar power supply unit for battery operated device Download PDFInfo
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- CN1052120C CN1052120C CN95192917A CN95192917A CN1052120C CN 1052120 C CN1052120 C CN 1052120C CN 95192917 A CN95192917 A CN 95192917A CN 95192917 A CN95192917 A CN 95192917A CN 1052120 C CN1052120 C CN 1052120C
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- Prior art keywords
- battery
- power supply
- voltage
- terminal
- operated device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
This invention uses low levels of light energy as found within dwellings, or other enclosed but lit spaces, to power a device such as a smoke alarm in place of conventional replaceable batteries. Light incident upon a solar cell array (2) attached to a smoke alarm or other battery powered device is collected and converted to a voltage which is multiplied by the action of one or more DC-DC converter circuits (3, 4 and/or 5) to give rise to a resulting output voltage (6). This voltage is applied via resistor (7) and series device (8) to a rechargeable cell or cells (10) and is limited to a maximum voltage by zener diode (9). If desired, a DC-DC converter can be added at the output of the cell (10) in addition to or in place of the DC-DC converter connected to the solar cell. The converter or converters, the regulating circuits and the cell (10) are all housed in a container which is the same size and shape as a conventional dry cell.
Description
The present invention relates to a kind of battery operated device is regulated to allow this equipment to provide power by a kind of solar cell by means of circuit and rechargeable battery.
The problem of many battery operated devices is that the expense of replacement battery is too high, and the life-span of battery is often very short.This problem can be alleviated by using rechargeable battery, and still, this needs to connect a charging device to main supply usually.
In United States Patent (USP) 4686441, proposed before this to adopt a kind of photoelectricity charger that comprises the solar energy electroplax, be used to produce the charging current of battery.Yet this device is also inconvenient, does not provide a kind of feasible solution to this problem.
The purpose of this invention is to provide a kind of power supply, it uses solar cell as drive unit, has overcome the defective of present battery operated device inconvenience.
The invention provides a kind of supply unit, comprise a kind of rechargeable battery that is used to increase the transformer circuit of optoelectronic device output and is connected in this transformer circuit.This transformer circuit and battery are encapsulated in one with in the onesize box of general dry battery.
Be used to have the power supply of the battery operated device of battery terminal, this power supply comprises a solar cell and a voltage amplifier circuit that is used to amplify the solar cell output voltage, and said power supply has the battery terminal that is used for this power supply and said battery operated device and carries out the terminal that detachable electrical is connected.It is characterized in that said power supply terminal has identical structure with the terminal of standard cell substantially, therefore, said supply unit can replace said standard cell.
In order to make easy to understand of the present invention, its embodiment will be described by example, only with reference to appended legend, wherein:
Shown in Figure 1 is the pie graph that supply unit according to the present invention is used for a kind of a kind of embodiment of battery operated device.
Fig. 2 has provided a kind of in the outside method of attachment of using external plug of battery operated device.
Fig. 3 has provided a kind of in the outside method of attachment of using external plug of battery operated device, and this plug comes from one and comprises solar battery array, promotes the container of circuit and rechargeable battery.
Fig. 4 has provided and has been used for regulating circuit low, power requirement.
Fig. 5 has provided the simplest regulating circuit that is used for low current applications under the limited situation of battery size.
The regulating circuit that Fig. 6 provides is by placing the voltage that more voltage lifting circuit reduces rechargeable battery between rechargeable battery and sun-generated electric power output.
Fig. 7 has provided a regulating circuit that allows big supply current ability when needed, is fixed against one and directly connects from the bypass of the output of boosting and realize, it is not used to control the influence of the current-limiting resistance of battery charge.
Fig. 8 has provided a frame diagram with rational regulating circuit of big electric current fan-out capability, it has a voltage regulator after promoting circuit, and have the bypass from voltage regulator to solar powered output to connect, it is not used to control the influence of the current-limiting resistance of battery charge.
Fig. 9 has provided the special terminal that can allow to use circuit shown in Fig. 6.
Figure 10 has provided a kind of device, represents to have sufficient light to come rechargeable battery is charged by a flicker LED.
Figure 11 has provided a kind of suitable oscillating circuit, can be used for driving the LED electric pulse through shown in Figure 10.
Figure 12 has provided the special connection of another embodiment of the present invention.
Figure 13 has provided a kind of special connection of another embodiment of the present invention.
This supply unit is made up of three basic elements of character: solar battery array 2, DC-to-DC (DC-DC) transformer 3,4,5, regulating circuit 7,8,9 and rechargeable battery 10.Solar battery array 2 comprises the solar cell combination of solar cell or all areas of some connection in series-parallel connections, it can fully provide electric current to come steering voltage to promote circuit after making up by utilizing the voltage that obtains at the general family available illumination level in residence, battery is aligned to a single plane, covering of smoke-detectors can be selected to be fixed in this plane, and locatees with the known angle to level by a turning gear as shown in Figure 1.
As shown in Figure 5, electric current to rechargeable battery is subjected to a regulating circuit restriction, this modulation circuit comprises a series resistance 7, series diode 8 and pressure limiting voltage stabilizing didoe 9, and when the light illumination on shining solar cell was big, it can prevent that rechargeable battery from overcharging.Diode and the series connection of voltage lifting/voltage-multiplier circuit are used, and make electric current only can flow to rechargeable battery.
As shown in Figure 6, in case solar battery array is that produce and the desired magnitude of current of electric equipment that be powered may be big the time, diode 8 is moved to a position, makes electric current to flow to output by diode 8 directly from promoting circuit 2,3,4,5 and voltage stabilizing didoe 9.By forward biased another diode 20 of battery, be placed between battery and the output then, prevent that big electric current is by current-limiting resistance 7.An additional resistance 21 is placed after can being followed closely selectively and promoting circuit, limits the largest battery that flows through voltage stabilizing didoe 9.
The current limliting process of resistance 7 also can be by with a kind of current-limiting apparatus of special use, integrated circuit LM334 for example, and substitutional resistance is realized.Here under the situation, necessary is exactly pressure limiting voltage-stabiliser tube and current-limiting apparatus.
Fig. 7 has provided at lifting circuit end, at the schematic diagram of a resistance 7 and a voltage regulator 19 of diode 8 fronts use, and it limits charging current by the voltage at limiting resistance 7 two ends.In this circuit, diode 8 is moved to a position makes electric current directly to flow to output from promoting circuit 3,4 outflows by diode 8.So be placed between battery and the output by forward biased another diode 20 of battery, in order to prevent that big electric current is by current-limiting resistance 7.
Rechargeable battery needn't be placed on the end of voltage lifting/voltage multiplier string.In some cases, the voltage of rechargeable battery 10 can be exported much smaller than entire circuit.Charged battery voltage is than the low benefit that can bring on the cost of circuit output, because battery cost has been lowered.Yet in this case, just need between rechargeable battery and the physical device that is powered, increase a DC-to-DC transformer or DC-to-DC transformer group, as shown in Figure 8.
As shown in Figure 8, another voltage lifting circuit 11 is by battery 10 feeds, and is installed in the box 14, allows cell voltage specific output voltage low.
This additional DC-to-DC transformer 11 should pick out from battery by a special connector, in case when the electronic equipment that is powered was connected, its only can be to this additional DC-to-DC transformer-supplied.This measure has prevented from when the encapsulation state and be not exposed to of solar energy adapters before using is recharged under the light undesirable battery discharge to take place.Fig. 9 a, b have illustrated such scheme is how to realize.
In Fig. 8, all receive sun-generated electric power output 18 from the link 17 of the anode connection terminal 16 of battery and DC-to-DC transformer to the end, and only linked together when being connected in positive pole output.This be because, for example shown in Fig. 9 a, the b, at the size of box and PP3 battery under similar circumstances, anodal have an insulating trip 22 at two that form the positive plate structure of PP3 between just connecting, therefore, connecting 16 and 17 just can form when the equipment that is powered is connected to connector 18.Should be emphasized that similar technology can be used to be fixedly attached to the battery of other type on the battery terminal on the equipment.
The way that DC-to-DC transformer (group) is used together with solar cell, with the common method that solar array voltage output simply is connected to rechargeable battery comparatively speaking, improved the ability that under low-light level and less solar cell situation, light is converted to electric power.This point is always to be higher than cell voltage by the voltage that the effect that promotes circuit guarantees to supply with battery to realize, even also is like this when the actual output of solar cell is lower than cell voltage.Suppose that output voltage provides electric current by resistance R to cell voltage Vb for the solar cell of V, so, the charging current I that enters battery is provided by following formula:
Electric current I=(V-Vb)/R=(V/R)-(Vb/R) (1) uses gain factor to require extra electric current I s to give gain circuitry as the voltage lifting circuit of G between solar cell and battery.So, enter following the providing of charging current of battery:
Electric current I g=(GV/R)-(Vb/R)-Is (2)
Obtain by formula 1 and 2:
(G-1) V/R＞Is (3) so, this shows the circuit that promotes for working voltage between solar cell and the rechargeable battery Ig/I＞1 (4), with respect to the only simple connection from solar cell to rechargeable battery, it is big that charging current is wanted.
Set up for the condition that guarantees top formula 3, must pay special attention to the voltage-current characteristic (I-V curve) of the solar cell that uses together with voltage lifting circuit.Under selected illumination, more excellent design is to obtain when the equivalent output impedance of solar cell is complementary with lifting circuit, charging current limiter resistance and the combined equivalent input impedance of battery charge internal driving.
The efficient E that considers solar cell exports V, electric current output I, solar cell area A and illuminance L with voltage and represents, assumed conditions is not away from the optimum Working of voltage-current characteristic, so:
Efficient E=(IV)/(AL) watt/meter
2/ Lux ... 1
Suppose that the solar cell that is equated by two efficient E provides identical electric current to rechargeable battery, a solar cell 1 is directly linked battery, and the voltage lifting circuit that another solar cell 2 is G by a gain factor is connected to battery.
Two solar cells are all used top formula 1, and by efficient E and electric current I constant K, rearrangement obtains:
(E/I)=K=V1/ (A1L1)=V2/ (A2L2) ... the voltage output (V2) of 2 solar cells 2 is compared solar cell 1 (V1) and is reduced according to lifting factor G, therefore
V2=V1/G ... 3 with formula 3 substitutions 2 and the V1 that divides out, and obtains
(A2L2)/(A1L1)=1/G ... 4 therefore, if will compare two desired areas of solar cell down in constant illumination (L), or compares illumination when two solar-electricity pool areas (A) equate, then
A2/A1=1/G L is constant ... 5
L2/L1=1/G A is constant ... the identical solar cell of 6 supposition sends identical electric current to battery, two formula 5,6 show, with identical parameters A1 when directly being connected and L1 between solar cell and the rechargeable battery comparatively speaking, use lifting circuit makes that area A 2 reduces to reduce with illumination L2 between solar cell and the rechargeable battery.
Above-mentioned analysis has supposed that for the solar energy system of comparing charging current I and battery efficiency E equate.And under selected illumination, solar cell short circuit current fan-out capability Isc substantially exceeds battery charge I, and also substantially exceeds the electric current I g that the lifting circuit provides.Another supposition is that the voltage stabilizing didoe of pressure limiting does not influence the output of lifting circuit under most of conditions of work.
Employed rechargeable battery type should be able to show the function of good output voltage to input current, and can charge and discharge and many times and not can weaken its population size.At present, this battery is a kind of lithium type battery, such as lithium-vanadium or manganese dioxide lithium battery.This means that for little electric current battery can be stabilized in a stable voltage output quickly.
For some devices, a part solar battery array being made device housings is possible.Just can not regulate the location of solar cell in this case, and, if equipment is smoke-detectors for example, they just must be installed in such a way, make can be easy to shine on the solar cell so that collect luminous energy effectively with following light from the side.In this case, can use a solar cell that the gross area is slightly bigger, therefore, be not under the situation about shining equably on all batteries at light, and it just can not have a negative impact to the electric current output of solar battery array.When solar cell became as a whole with this equipment, power supply connects just needn't connect by the dry cell type to be finished.Rechargeable battery and voltage multiplie can be added in the known printed circuit board member of smoke alarm.
Fig. 1 has provided the adjusting device that is fixed in smoke alarm 12 tops, the equivalent dry cell 14 of dress in being connected to by power lead.Light 1 is radiated on the solar battery array 2, be collected and be transformed into voltage, then this voltage by the voltage liftings/voltage-multiplier circuit 3,4 that connects with cascade system and/5 boost and export 6 to provide final voltage.This voltage, its maximum is limit by voltage stabilizing didoe 9, supplies with one or more rechargeable batteries 10 through resistance 7 and serial connection diode 8.These rechargeable batteries can directly connect or be connected to smoke-detectors by another voltage lifting/voltage multiplie or a plurality of voltage multiplie 11.
Can adopt various improving one's methods to above-mentioned equipment.Such as, under the less situation of the size of dry cell, part or all of voltage lifting circuit can be loaded in the structure of solar cell shown in Fig. 2 and 3.And solar cell can be separated from rechargeable battery/lifting circuit or independent battery/electric current restriction combination when being considered to improper in its position.
Fig. 4 has provided an embodiment, wherein promotes positive pole and negative pole output place of circuit at rechargeable battery 26, shown in vertical dotted line 7 and 8, separates with it.This circuit allows neatly charging current for charging is removed solar cell and voltage lifting circuit unwanted the time then.It also allows to replace and remove rechargeable battery, promotes circuit and needn't abandon DC-to-DC.
In order to make rechargeable battery not have also to link battery operated device under the situation of charging circuit, between battery and equipment, use a kind of connector, it is imported from charging circuit, shown in Figure 12 and 13.
Figure 12 has provided a kind of embodiment of the present invention according to Fig. 4 fine structure.In this embodiment, between rechargeable battery 30 and battery operated device 28, be connected with a kind of special connector 27 to allow to rechargeable battery 30 chargings, simultaneously, receive charging, and need not interrupt power supply battery operated device from solar cell and lifting circuit 25.Connector 27 is placed and used to make and solar poweredly disconnects simply by plug 42, and when not needing solar recharging, allows to be connected to the direct of battery operated device 28 with current-limiting circuit 30 from rechargeable battery.Two protruded arms that vertically stretch out from connector 27 have prevented from connector 27 to battery operated device 28 and the incorrect link of rechargeable battery 30, connect with C and join because if attempt can only be received the A limit on D limit, and protruded arm can mechanically conflict with battery mutually.
Figure 13 has provided another embodiment of the present invention, connector 29 that is positioned at 40 of rechargeable battery 30 or general dry batteries thus, allow electric current from rechargeable battery 30 or dry cell 40, perhaps have the solar cell that promotes circuit 21 and flow to battery operated device.The structure of connector has two outstanding arms 31 and 32, is used for preventing that the A limit from unexpectedly being received the positive and negative the two poles of the earth of battery on C limit.In the structure of connector, there is a circuit to allow to provide voltage with lifting circuit 26 or from charging/dry cell to be installed to battery operated device from solar cell.Promote flow through forward bias diode 8 and from the electric current of the charging/dry cell outflow forward biased diode 38 of flowing through of electric current that circuit flows out from solar energy, this depends on which diode has higher forward bias voltage.If from solar cell with to promote the voltage that circuit 25 comes out high, electric current can be from charging or the dry cell diode 38 of flowing through so.If there is a large amount of solar energy to exist before this, so, a low leakage capacitance that is used to store electric charge can temporarily be powered to battery operated device before charging/dry cell 30 or 40 outflows at electric current.Also can select a forward bias diode 42 for use, be used for when power supply is not used, preventing that electric capacity from discharging by amplifying circuit.
Foregoing circuit detects the existence of rechargeable battery by the battery negative terminal 26 that utilizes a kind of particular design, allows electric current to cross diode 38 and charges to rechargeable battery.This special rechargeable battery splits into two independent electric connections 36 and 37 by one and constitutes.When the rechargeable battery 30 of particular design is linked connector 27, between the negative terminal of battery operated device, battery and sun-generated electric power and diode 34, be not connected.Because diode 34 with anything connection that electricity is arranged, does not have electric current can flow through diode 34 and resistance 33.Therefore, voltage between resistance 33 and diode 34 is enhanced supply power voltage, cause providing a high voltage in the door/base stage of switchgear 39, so these switchgear 39 conductings, allow electric current to flow to rechargeable battery 30 from solar cell/lifting circuit 25.
When a general dry battery 40 was connected to special connector 27, half joint 36 and 37 all was connected to zero potential, the door/base voltage of switchgear 39 is left behind and closes.This has prevented then that any electric current from crossing and has intercepted diode 38 and flow into dry cell.Need additional protection diode 35 and 34 temporarily to be connected and protection switch equipment 39 during C downlink connection device 27 at B improperly at the terminal of battery 30.
The advantage of this device is can not charge to dry cell, and only have the division joint rechargeable battery can be recharged.This just allows rechargeable battery and dry cell all can use together with solar energy, and selecting provides standby energy by simple dry cell rather than rechargeable battery.
Whether can be placed on the flicker LED24 of box on 14 that comprises rechargeable battery or solar panels 2 by use comes guidance light to be enough to this situation of battery charge.This LED24 is by a kind of infrequently pulse voltage power supply of sending from a ball bearing made using 24, this circuit 23 as shown in figure 11, link position as shown in figure 10, it is made up of two triode Tr1 and Tr2, under time constant control, enter and leave saturation condition fast, this time constant by power supply by from the resistance of the output that promotes circuit to electric capacity charging decision.
Above-mentioned equipment especially was used in battery operated device and has to be in the occasion that " wait " state then could reliably working, for example smoke-detectors, intrusion alarm device or even flashlight in the time of an elongated segment.It also can be used for other field, and such as in the personal entertainment field, this supply unit can be used to small radio receiver or personal stereo or calculator power supply.The most important thing is that wherein solar cell can be exposed to following a period of time of light, so that enough energy are arranged to battery charge.
In all these are used, circuit and rechargeable battery are installed in a size and dimension and common batteries, for example in the box that PP3 battery or AA type battery are identical, this fact means, for instance, can under the battery case of this equipment, pass through as long as connect the electric wire of solar cell and power supply box, this equipment be changed with regard to not needing.
Because the sealing characteristics of battery case equipment can not have under the outside situation about connecting in the position to dry cell, just require a kind of slightly different device of sun-generated electric power, see Fig. 2 and Fig. 3.In this case, the box 14 that comprise battery, promotes circuit and current regulating circuit has constituted the part of solar battery structure, or from solar cell to the path that is positioned at the externally fed plug 15 on the battery operated device.
This supply unit allows to be used to produce electric power with being compared to quite little area of existing solar energy acquisition method on the solar energy electroplax.Simultaneously, this device allows from than low-light (level), such as artificial light in the room or near the illumination of the light of window, produces electric power.Except above-mentioned, less solar energy electroplax has reduced the cost of supply unit.Low-cost and can exchange this situation in battery and make in the commercial environment of this device more than very application is arranged with existing.
This supply unit can be used to a variety of power devices, such as smoke alarm, and burglar alarm or the like, and broadcast receiver and personal stereo cassette player/recorder etc.
Claims (23)
1. be used to have the power supply of the battery operated device of battery terminal, this power supply comprises a solar cell and a voltage amplifier circuit that is used to amplify the solar cell output voltage,
Said power supply has the battery terminal that is used for this power supply and said battery operated device and carries out the terminal that detachable electrical is connected.
It is characterized in that said power supply terminal has identical structure with the terminal of standard cell substantially, therefore, said power supply can replace said standard cell.
2. according to the power supply of claim 1, it is characterized in that, comprise that also one is placed and is used for by the battery of said power supply terminal to battery operated device power supply.
3. according to the power supply of claim 2, it is characterized in that voltage amplifier circuit is with in the said battery unit between solar cell and battery operated device together.
4. according to the power supply of claim 2, it is characterized in that voltage amplifier circuit is placed with solar cell and said battery.
5. according to the power supply of claim 2, it is characterized in that voltage amplifier circuit and battery are positioned to the said battery case that is suitable for putting into said battery operated device.
6. according to any power supply in the claim 2 to 4, it is characterized in that voltage amplifier circuit is arranged to make electric current to flow to battery operated device or to flow to battery operated device from sun-generated electric power from battery, depends on which can provide bigger voltage.
7. according to the power supply of claim 2, it is characterized in that, the second cover terminal is used for detachably being connected to said power supply from said battery, wherein battery is mechanically with the sun-generated electric power other parts independently in the parts at one, and wherein battery comprises the terminal that detachably is connected to other terminal on the power supply, and power supply can be connected to battery and/or battery operated device like this.
8. according to the power supply of claim 7, it is characterized in that, the terminal of all power supplys all one with individual unit that solar panels separate in.
9. according to the power supply of claim 6, it is characterized in that mechanical device is positioned near said power supply terminal place, is used to prevent that said power supply is connected to battery or battery operated device improperly.
10. according to the power supply of claim 7 or 8, it is characterized in that, connecting power supply has one or more outstanding to the terminal on the unit of battery operated device, and thus, be somebody's turn to do or any outstanding connection of said unit that do not hinder with said battery operated device, and thus, should or any outstanding terminal connection that prevents on battery terminal and the unit that is designed to be connected battery operated device.
11. the power supply according to claim 10 is characterized in that, battery is a rechargeable battery.
12. the power supply according to claim 11 is characterized in that, also comprises a regulating circuit that is connected between amplifying circuit and the rechargeable battery.
13. the power supply according to claim 12 is characterized in that, regulating circuit comprises current-limiting resistance and a series diode and a voltage stabilizing didoe in parallel, and the voltage that promotes circuit by restriction is exported the electric current that limits from regulating circuit output.
14. the power supply according to claim 13 is characterized in that, described regulating circuit comprises a voltage regulator, and the current-limiting resistance and the diode that are connected in series between voltage regulator output and rechargeable battery.
15., it is characterized in that the electric current that flows to battery operated device from power supply is walked around said current-limiting resistance according to claim 13 or 14 described power supplys.
16. the power supply according to claim 15 is characterized in that, battery is placed in the amplifying circuit before last amplifier, and battery provides a voltage that is lower than electric power output voltage like this.
17. the power supply according to claim 16 is characterized in that, the anode of power supply has the part that two electricity are isolated, and wherein these two parts all are electrically connected with the anode of battery operated device;
Thus, battery is a part that is connected to power positive end, and an I/O of amplifying circuit is connected to another part of power positive end, like this, does not have electric current to flow out from battery when power supply does not link to each other with battery operated device.
18. the power supply according to claim 17 is characterized in that, battery is in a unit that mechanically separates with the lifting circuit,
Battery comprises being connected to removablely and promotes circuit or battery operated device and said battery and can be dry cell and substitute.
19. power supply according to claim 18, it is characterized in that, a circuit is installed in the connector, comprises a forward bias diode and the forward bias diode from standard dry cell batteries from sun-generated electric power, and electric current just can not flow to said standard dry cell batteries like this.
20. according to claim 18 or 19 described power supplys, it is characterized in that, the terminal that said power supply is arranged for connecting said battery is split into first and second parts that electricity is isolated, and, the terminal that is arranged for connecting this terminal on the said rechargeable battery also splits into first and second parts that electricity is isolated, thus, between the power supply terminal of the rechargeable battery terminal of said division and said division, two special electric connections have been provided.
21. power supply according to claim 20, it is characterized in that, the joint of said division is arranged for providing one to allow electric current to flow into said rechargeable battery during than the high voltage of cell voltage at said power supply, and wherein the terminal that is under an embargo by the division on said power supply of electric current flows into said dry cell.
22., it is characterized in that a big low leakage capacitance cross-over connection power supply output is provided with according to the described power supply of claim 1, when solar cell can not provide enough voltage, need not to use battery to reach limiting time and just can provide electric current thus.
23., it is characterized in that, have at least a indicator light, or any indicator light only when providing sufficient voltage, said power supply is illuminated according to the described power supply of claim 1.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9405904A GB9405904D0 (en) | 1994-03-24 | 1994-03-24 | Solar powered supply adaptor for smoke alarm |
| GB9407777.3 | 1994-04-20 | ||
| GB9407777A GB9407777D0 (en) | 1994-03-24 | 1994-04-20 | Solar power supply unit for battery operated devices |
| GB9405904.5 | 1994-05-24 | ||
| GB9500409.9 | 1995-01-10 | ||
| GBGB9500409.9A GB9500409D0 (en) | 1994-03-24 | 1995-01-10 | Solar power supply unit for battery operated devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1148445A CN1148445A (en) | 1997-04-23 |
| CN1052120C true CN1052120C (en) | 2000-05-03 |
Family
ID=27267118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95192917A Expired - Fee Related CN1052120C (en) | 1994-03-24 | 1995-03-24 | Solar power supply unit for battery operated device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1052120C (en) |
| AU (1) | AU1957795A (en) |
| WO (1) | WO1995026067A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2377803B (en) * | 2001-07-18 | 2005-04-06 | Thomas Fox & Company Ltd | Solar powered security apparatus |
| US7612283B2 (en) | 2002-07-09 | 2009-11-03 | Canon Kabushiki Kaisha | Solar power generation apparatus and its manufacturing method |
| WO2004006342A1 (en) * | 2002-07-09 | 2004-01-15 | Canon Kabushiki Kaisha | Solar power generation apparatus and its manufacturing method |
| CN107872101B (en) | 2017-11-24 | 2019-11-15 | 深圳市文鼎创数据科技有限公司 | A kind of NFC antenna electricity getting device |
| CN108092265B (en) * | 2017-12-27 | 2021-06-11 | 国网山东省电力公司齐河县供电公司 | Hybrid power supply device comprising new energy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4963811A (en) * | 1987-12-10 | 1990-10-16 | Weber Hans R | Method and apparatus for powering electrical and electronic consuming devices with solar energy |
| US5164654A (en) * | 1989-03-25 | 1992-11-17 | U.S. Philips Corporation | Solar energy operated automatic charge device for electric appliances |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3525630A1 (en) * | 1985-07-18 | 1987-01-29 | Licentia Gmbh | Method for optimum matching of the voltage from a solar generator to a parallel-connected battery |
| DE4101253A1 (en) * | 1991-01-17 | 1992-07-23 | Telefunken Systemtechnik | Controlling optimal solar generator working point during battery charging - generating additional voltage when generator maximum efficiency point and battery operating point diverge |
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1995
- 1995-03-24 CN CN95192917A patent/CN1052120C/en not_active Expired - Fee Related
- 1995-03-24 WO PCT/GB1995/000685 patent/WO1995026067A1/en active Application Filing
- 1995-03-24 AU AU19577/95A patent/AU1957795A/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4963811A (en) * | 1987-12-10 | 1990-10-16 | Weber Hans R | Method and apparatus for powering electrical and electronic consuming devices with solar energy |
| US5164654A (en) * | 1989-03-25 | 1992-11-17 | U.S. Philips Corporation | Solar energy operated automatic charge device for electric appliances |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1995026067A1 (en) | 1995-09-28 |
| AU1957795A (en) | 1995-10-09 |
| CN1148445A (en) | 1997-04-23 |
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