CN100440612C - Photoelectric charger, charging method and its electronic products used thereof - Google Patents
Photoelectric charger, charging method and its electronic products used thereof Download PDFInfo
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- CN100440612C CN100440612C CNB2006100327894A CN200610032789A CN100440612C CN 100440612 C CN100440612 C CN 100440612C CN B2006100327894 A CNB2006100327894 A CN B2006100327894A CN 200610032789 A CN200610032789 A CN 200610032789A CN 100440612 C CN100440612 C CN 100440612C
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Abstract
The present invention relates to a photoelectric charger, a charge method and an applied electronic product, which belong to the electric field. The electronic product with a photoelectric charger mainly comprises a photoelectric charger, a host and a self-contained rechargeable battery for the host, wherein the photoelectric charger comprises at least one photoelectric battery and at least one energy storage component which is connected with each photoelectric battery, all photoelectric batteries charge the energy storage components which are connected with the photoelectric batteries in series, and all energy storage components are connected with the self-contained rechargeable battery for charging the self-contained rechargeable battery. The photoelectric batteries convert light into electric energy, and charge the energy storage components which are connected with the photoelectric batteries in series during the charge. Then, the energy storage components charge the self-contained rechargeable battery according to the voltage condition of the rechargeable battery. During the charge process, the photoelectric charger can realize real-time charge, and can also satisfy the requirements of big power consumption without influencing the work performance of the rechargeable battery of the electronic product.
Description
Technical field
The present invention relates to electricity field, relate in particular to photronic charging technique in the electricity field.
Background technology
Along with science and technology development, mobile phone, notebook computer, digital camera, MP3, MP4, PDA portable type electronic products such as (Personal Digital Assistant, personal digital assistants) is more and more universal, and the power supply powerup issue of portable type electronic product has also caused common attention gradually.
Because it is the common volume of portable type electronic product is little in light weight, therefore also often relatively strict to power unit in this respect.The particularly important is, guaranteeing that portable type electronic product enriches under the prerequisite of functional characteristic, need ask its power supply that more and more higher energy density and more and more longer power-on time can be provided.
At present, in the portable type electronic product field, the power supply supply mainly comes from battery, and its type mainly comprises NI-G (NiCd), ni-mh (NiMH), lithium ion (Li-Ion) and LI polymer battery or the like.
In the prior art, the mode of the battery of portable type electronic product raising energy storage has varied, and wherein comparatively general mode mainly contains: 1) change the architectural characteristic of battery, as add the silicon of controlled quantity in the graphite anode of lithium ion battery; 2) adopt the system level power management, comprise and utilize daily power supply to carry out battery charge; 3) improved circuit design.
Except that improving existing battery performance, another kind of developing direction is developed the better new-type battery of energy-storage property exactly, as super-capacitor device, photoelectricity charger and the fuel cell of developing at present etc.
Super capacitor is a kind of novel energy-storing device, and it is to come the electrochemical appliance of store electrical energy by polarization electrolyte.On energy storage mechanism, it is highly reversible, and the life-span is very long, discharge repeatedly that can ten million time, and can fast charging and discharging under very big electric current, very wide voltage range and operating temperature range are arranged in addition.
The photoelectricity charger is a kind of device that transform light energy is become electric energy, mainly be to utilize photoelectric effect, claim the optical excitation electrical effect again, electronic motion state in the semiconductor (as monocrystalline silicon, polysilicon, amorphous silicon, GaAs, selenium indium copper etc.), can be divided into conduction band and valence band by energy, the energy gap between the two is called the forbidden band.Be in the electronics in the conduction band, can free movement in the monoblock semiconductor, conduction current.Be in the electronics in the valence band, can only move around atomic nucleus, can not conduction current.When semiconductor was subjected to the external energy excitation of luminous energy, heat energy or other, the electronics in the valence band can transition be gone into conduction band, stays next hole in valence band.The hole positively charged also can free movement in the monoblock semiconductor, conduction current.Electronics and hole that can conduction current be called charge carrier.Electronics and hole all are paired appearance, exist in pairs.Be subjected to optical excitation to produce electronics, the right process in hole, be called optical excitation.
With the crystal is that the forwarding of example explanation luminous energy is the process of electric energy, and P type crystalline silicon can get N type silicon through Doping Phosphorus, forms the P-N knot.When its surface of irradiate light, the energy of a part of photon is made electronics that transition take place by Electron absorption, becoming free electron gathers in P-N knot both sides and has formed potential difference, when circuit is connected in the outside, under the effect of this voltage, flow through the certain power output of external circuit generation with having electric current.
Portable type electronic product utilizes the two kinds of forms that mainly contain of solar energy at present, and wherein a kind of is external hanging type, is meant to have an independent portable charger, utilizes solar recharging separately, just gives the battery charge of portable type electronic product after charging finishes.Another kind is embedded, is meant that a photoelectricity charger is set in the portable type electronic product, utilizes the charging modes of solar energy to charge when combining with portable type electronic product.
But, be external hanging type or embeddedly all have certain limitation.Slow at local charging rate overcast and rainy and that light is dark as external hanging type photoelectricity charger, the local or bright place charging rate of light intensity is fast in day; And, therefore carry inconvenience because external hanging type photoelectricity charger and portable type electronic product are in released state.And embedded photoelectricity charger if apply it in the bigger high-performance portable electronic product of power consumption, because power consumption is big, may not satisfy the demands; In addition because both operating characteristic is just in time opposite, and the photoelectricity charger needs sufficient sunlight promptly to work under higher temperature, and the TunePower of portable type electronic product overheated environment is next can't operate as normal.
In addition, various aspects in the middle of industry and daily life, equally also often use the photoelectricity charger, as automobile, because the area used of automobile is very big, such as roof, the side of car can utilize photosensitive material to make the photoelectricity charger, it is slow that but the photoelectricity charger that is applied to automobile at present exists in local charging rate overcast and rainy and that light is dark equally, the little problem that can not satisfy the demands of amount of power supply.
So be necessary to invent a kind of can being convenient for carrying, again can real time charging and don't influence the photoelectricity charger of the TunePower service behaviour of electronic product own.
Summary of the invention
Have in view of that, the invention provides electronic product and its charging method of a kind of photoelectricity charger and application thereof, electronic product that make to use this photoelectricity charger can real time charging, can satisfy the bigger demand of power consumption again, not influence the service behaviour of the TunePower of portable type electronic product own again.
A kind of photoelectricity charger, comprise at least two each and every one photoelectric cells, wherein, each photoelectric cell contact at least one energy storage device so that this photoelectric cell to the charging of this energy storage device, and this energy storage device is used for the electronic product battery charge, and wherein the discharging current of at least one energy storage device of at least one photoelectric cell series connection is a trickle.
The present invention also provides a kind of electronic product with photoelectricity charger, comprise the photoelectricity charger, main frame and main frame provide TunePower for oneself, the photoelectricity charger is with the transform light energy electric energy and to providing the TunePower charging for oneself, provide the TunePower driving host for oneself, wherein, this photoelectricity charger comprises at least one energy storage device of at least two photoelectric cells and each photoelectric cell polyphone, each photoelectric cell is to the energy storage device charging of its polyphone, all energy storage devices all with provide TunePower for oneself and link to each other to be used for providing TunePower charging for oneself to this, wherein the discharging current of at least one energy storage device of at least one photoelectric cell series connection is a trickle.
The present invention also provides a kind of method of utilizing luminous energy to charge, presets at least two photoelectric cells,, at least one energy storage device is set between each photoelectric cell and TunePower, the key step of then charging comprises:
Steps A, photoelectric cell are converted into electric energy with luminous energy and to the charging of the energy storage device of its polyphone;
Step B, energy storage device charges to TunePower according to the voltage condition of TunePower; Wherein the electric current of the discharge circuit of at least one energy storage device of at least one photoelectric cell polyphone is a trickle.
Compared with prior art, because the photoelectric cell of photoelectricity charger of the present invention charges to TunePower by energy storage device, and energy storage device can be earlier with power storage, select whether to charge according to the voltage condition of TunePower again, so the electronic product of photoelectricity charger of the present invention and application thereof and its charging method, can real time charging, can satisfy the bigger demand of power consumption again, do not influence the service behaviour of the TunePower of electronic product own again.
Description of drawings
Fig. 1 is the charging system block diagram of the notebook computer of the present invention's one better embodiment.
Fig. 2 is the block diagram of the photoelectricity charger of the present invention's one better embodiment.
Fig. 3 is the photoelectricity charger charging flow figure of the present invention's one better embodiment.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is further detailed explanation.
Opto-electronic conversion of the present invention, related light source not only refers to sunlight, also comprises fluorescent lamp, multiple light source such as indoor light, even if overcast and rainy or also can carry out high efficiency opto-electronic conversion, store electrical energy when lighting incandescent lamp night, so that charge at any time.
Core content of the present invention is: in the photoelectricity charger, be provided with at least one photoelectric cell, and each photoelectric cell is contacted at least one energy storage device so that the first energy storage device charging to its series connection of this photoelectric cell, make energy storage device give electronic product intrinsic battery charge again, promptly utilize the intrinsic battery of energy storage device and electronic product to work in coordination with power supply.
Wherein, the contact series system of at least one energy storage device of photoelectric cell has various ways, can be as long as satisfy photoelectric cell to the energy storage device charging of its series connection, and the conducting and the off-state that satisfy charging circuit can Be Controlled get final product, mainly contain three kinds of following forms as series system, first kind of series system: each photoelectric cell is connected successively with at least one energy storage device, if there are at least two series circuits, then any two series circuits are irrelevant mutually; Second kind of series system: a plurality of photoelectric cells are connected successively with at least one energy storage device simultaneously, if there are at least two series circuits, then any two series circuits are irrelevant mutually; The third series system: a plurality of photoelectric cells are connected successively with at least one energy storage device simultaneously, and part or all of these a plurality of photoelectric cells also connected with other at least one energy storage device simultaneously successively.But being the convenience of describing, is that example describes with first kind of series system in the better embodiment of the present invention.
As shown in Figure 1; be the charging system structured flowchart of the notebook computer of the present invention's one better embodiment, this charging system mainly comprises USB power-supply controller of electric and lithium battery charger 110; system switching power supply 111; electric weight counting and battery protection chip 112; photoelectricity charger 113; lithium ion battery 114; the DC/DC module 115 of LCD/OLED display screen; DC/DC boost conversion module 116 backlight; the DC/DC module 117 of power amplifier; the DC/DC module 118 of base band CPU; the DC/DC module 119 of CCD; use and multimedia DSP module 120; the DC/DC module 121 of HDD; DC/DC module 122; memory card hot plug module 123.
Circuit connecting relation is: USB power-supply controller of electric and lithium battery charger 110 link to each other with system switching power supply 111, electric weight counting and battery protection chip 112, lithium ion battery 114, DC/DC boost conversion module 116 backlight respectively, and lithium ion battery 114 also links to each other with photoelectricity charger 113; USB power-supply controller of electric and lithium battery charger 110 also are connected with the DC/DC module 115 of LCD/OLED display screen, DC/DC boost conversion module 116 backlight respectively with on the connecting line of system switching power supply 111 jointly; System switching power supply 111 connects DC/DC module 117, the DC/DC module 118 of base band CPU, DC/DC module 119, application and the multimedia DSP module 120 of CCD, the DC/DC module 121 of HDD, DC/DC module 122, the memory card hot plug module 123 of power amplifier respectively.
The USB power-supply controller of electric of present embodiment and lithium battery charger 110 can be single integrated circuit automatic power management device and the battery chargers at USB and USB On-The-Go equipment, can be lithium ion battery 114 chargings by adapter by USB VBUS or in the situation that adapter is arranged.
System switching power supply 111 can dynamically be adjusted output voltage, and has transfer ratio control.
The DC/DC module 117 of power amplifier mainly is at Streaming Media, and as MP3, MP4 player, and radio-frequency power amplifier are to provide suitable output voltage.And can automatically in the step-down (step-down) and the switching running between (step-up) of boosting, and can set up output voltage on their own along with the change of input voltage.
The DC/DC module 118 of the DC/DC module 115 of LCD/OLED display screen, DC/DC boost conversion module 116 backlight, base band CPU, the DC/DC module 119 of CCD, the DC/DC module 120 of application and multimedia DSP, the DC/DC module 121 of HDD, gateway DC/DC module 122, memory card hot plug module 123 all drive its corresponding equipment respectively according to the voltage of system switching power supply 111 outputs.
During work, photoelectricity charger 113 provides power supply jointly with lithium ion battery 114, send system switching power supply 111 to by USB power-supply controller of electric and lithium battery charger 110, system switching power supply 111 is dynamically adjusted to export different voltage again, each different voltage is used to drive the DC/DC module 115 of corresponding LCD/OLED display screen, DC/DC boost conversion module 116 backlight, the DC/DC module 118 of base band CPU, the DC/DC module 119 of CCD, the DC/DC module 120 of application and multimedia DSP, the DC/DC module 121 of HDD, gateway DC/DC module 122, memory card hot plug module 123 etc.
For making the product that utilizes solar energy to carry out work can real time charging, can satisfy the bigger demand of power consumption again, especially for portable type electronic product, can be easy to carry, again can real time charging and don't influence the service behaviour of TunePower, so the photoelectricity charger 113 of present embodiment has structure as shown in Figure 2, as shown in Figure 2, photoelectricity charger 113 mainly comprises two photoelectric cells 1131,1132, two energy storage devices 1133,1134, two cmos switches 1135,1136, and an ASIC microcontroller 1137 and a button cell 1138, wherein, ASIC microcontroller 1137 has voltage comparator (not shown) and SMBUS bus (not shown).
During work, photoelectric cell 1131,1132 is an electric energy with transform light energy, and gives energy storage device 1133,1134 chargings, and this energy storage device 1133,1134 can be super capacitor, also can be TunePower.Utilizing the voltage of ASIC microcontroller 1137 control energy storage devices 1133,1134 is a setting, or this setting represents that energy storage device 1133,1134 is filled, when the voltage comparator of ASIC microcontroller 1137 judged that the voltage of energy storage device 1133,1134 reaches setting, photoelectric cell 1131,1132 stopped to energy storage device 1133,1134 chargings.Meanwhile, the voltage comparator of ASIC microcontroller 1137 is also judged the voltage of lithium ion battery 114, and utilize the SMBUS bus of ASIC microcontroller 1137 that lithium ion battery 114 is carried out the battery temperature signal, the live signal of cell voltage and the monitoring of some control actions.
The voltage of lithium ion battery 114 can be divided into a plurality of stages, generally when the voltage of lithium ion battery 114 hangs down, be lower than electric switch and ration the power supply when pressing, carry out the very little trickle charge of electric current, can be the charging of 0.1C (C refers to battery capacity) mode, this stage can be called the preliminary filling stage; Ration the power supply greater than low electric switch when the voltage of lithium ion battery 114 and to press and during less than nominal voltage, carry out the bigger constant current charge of charging current, can be the charging of 0.2C mode, this stage can be called the constant current charge stage; When the voltage of lithium ion battery 114 during near nominal voltage, carry out constant voltage charge, this stage can be called the constant voltage charge stage; Be protection lithium ion battery 114, carry out trickle charge after can also reaching nominal voltage at the voltage of lithium ion battery 114, this stage can be called the protection charging stage.
Is that the nominal voltage of graphite is the lithium ion battery of 4.2V as rated voltage for the 3.6V anode material, and its voltage can be divided into three phases:
First stage is that voltage is rationed the power supply below the pressure 2.5V at low electric switch;
Second stage is that voltage is between 2.5V-4.2V;
Three phases is a voltage about near nominal voltage 4.2V.
The voltage comparator of ASIC microcontroller 1137 judges that the voltage of lithium ion battery 114 is the phase I, and then 1133,1134 pairs of lithium ion batteries 114 of energy storage device carry out the precharge of 0.1C mode, trickle charge.
The voltage comparator of ASIC microcontroller 1137 judges that the voltage of lithium ion battery 114 is second stage, and then 1133,1134 pairs of lithium ion batteries 114 of energy storage device carry out the constant current charging mode of 0.2C mode.
The voltage comparator of ASIC microcontroller 1137 judges that the voltage of lithium ion battery 114 is the phase III, and then 1133,1134 pairs of lithium ion batteries 114 of energy storage device carry out constant voltage charge, are charged to less than certain current value, will decide according to the battery situation here.
Except that three above main charging stages,,, promptly carry out trickle charge so after three phases finishes, can set energy storage device 1133,1134 with a minimum current balance type self discharge because there is self-discharge phenomenon in lithium ion battery 114; And the lithium ion battery 114 to undue discharge carries out trickle charge earlier before the phase I, equally also can avoid damaging battery.By above-mentioned whole process, can avoid the lithium ion battery 114 that is full of electricity is carried out unnecessary charging.
In above-mentioned process of charging, may be owing to the unsteadiness of external light source, thereby cause time that photoelectric cell 1131,1132 gives energy storage device 1133,1134 chargings respectively difference to some extent, again because notebook computer is all inequality at the power consumption energy of each section period, so stop charging when the voltage of energy storage device 1133,1134 is charged to setting after, the voltage capacity of judging lithium ion battery 114 synchronously all is indefinite at every turn.In addition, when energy storage device 1133,1134 was super capacitor, capacitance discharges was a transient large current discharge, can reach the discharge of several A to tens A, and promptly energy storage device 1133,1134 can be in a short period of time, and electric energy stored is all given out light.And energy storage device 1133,1134 sparks when producing bigger electric current, the blast that will make lithium ion battery 114 charge and produce the high temperature injury batteries even can cause battery.Think the charging chemical characteristic that satisfies lithium ion battery 114 so that do not damage lithium ion battery 114, this better embodiment adopts different electric currents to charge.
Preferable, in the present embodiment, the discharging current of the discharging current of energy storage device 1133 less than energy storage device 1134 can be set, energy storage device 1133 carries out the minimum trickle discharge of discharging current, is the discharge of 0.1C mode; Energy storage device 1134 carries out the bigger regular picture of discharging current, is the discharge of 0.2C mode.So the voltage at the judgement energy storage device of above being narrated 1133,1134 reaches the magnitude of voltage of defined in advance, stop to be charged by photoelectric cell 1131,1132 and judging that synchronously the detailed process of the voltage of lithium ion battery 114 will be as shown in Figure 3.
But before judging, may exist the voltage of certain energy storage device to be charged to predetermined value, institute thinks and prevents that energy storage device 1133,1134 from being overcharged and influence the life-span, can utilize the voltage of 1137 pairs of energy storage devices of ASIC microcontroller 1133,1134 to monitor in real time, and monitoring in real time, might consume the electric energy of more button cell 1138, so further can utilize a timer of ASIC microcontroller 1137 inside to carry out the preset time monitoring, set a preset time and respectively the voltage of energy storage device 1133,1134 is judged at interval.
If wherein the voltage of certain energy storage device reaches predetermined value earlier, then interrupt the charging path of this energy storage device and its corresponding photoelectric cell.
If the voltage of these two energy storage devices 1133,1134 does not all reach predetermined value, then its corresponding photoelectric cell continues it is charged up to reaching scheduled voltage.Certainly, if in preset time, wherein the voltage of certain energy storage device reaches predetermined value and just can notify ASIC microcontroller 1137 by SMBUS, and this energy storage device voltage has been charged to predetermined value and has interrupted the path that is recharged of this energy storage device, and at this moment priority of interrupt is decided to be the highest.
In the present embodiment, the voltage of preferable setting energy storage device 1133 reaches predetermined value earlier, and concrete implementation is;
If the voltage of energy storage device 1133 does not reach predetermined value, then continue to be charged by photoelectric cell 1131; If the voltage of energy storage device 1133 reaches predetermined value, then interrupt the charging path of itself and photoelectric cell 1131, conducting cmos switch 1135 makes energy storage device 1133 give lithium ion battery 114 chargings.
Because in the present embodiment, the discharging current of energy storage device 1133 is less, be trickle discharge, so can take the voltage condition of lithium ion battery 114 into account, because trickle charge can not produce infringement to lithium ion battery 114 for that charging stage, even if it is also no problem that the voltage of lithium ion battery 114 is in the constant current charge state, just charge efficiency is low.But in charging process, also need utilize ASIC microcontroller 1137 to judge which kind of stage the voltage of lithium ion battery 114 is in, and then selectivity execution in step 312 or step 313 or step 314.
Whether step 312 utilizes voltage that ASIC microcontroller 1137 judges lithium ion battery 114 less than the low electric switch of the battery pressure of rationing the power supply;
If then energy storage device 1133 carries out normal trickle charge for lithium ion battery 114, up to discharge off, or the voltage that makes lithium ion battery 114 is greater than the low electric switch pressure of rationing the power supply.The voltage of 1137 pairs of lithium ion batteries 114 of ASIC microcontroller carries out periodic monitor in this process, if equaling low electric switch, the voltage of lithium ion battery 114 rations the power supply when pressing, lucky execution in step 330 at this moment, the voltage of judging the bigger energy storage device of discharging current 1134 also reaches its predetermined value, then utilize ASIC microcontroller 1137 to cut off cmos switch 1135, the energy storage device 1133 and the charging path of lithium ion battery 114 are interrupted, the path of energy storage device 1133 of conducting simultaneously and photoelectric cell 1131, make energy storage device 1133 be continued charging, and conducting cmos switch 1136, make the energy storage device 1134 and the charging path conducting of lithium ion battery 114 carry out constant current charge, after the voltage of energy storage device 1134 discharge offs or lithium ion battery 114 equals nominal voltage, return step 301 and judge again.
Otherwise, execution in step 313.
Whether step 313 is utilized voltage that ASIC microcontroller 1137 judges lithium ion battery 114 to ration the power supply greater than the low electric switch of battery and is pressed and less than the nominal voltage of battery;
If, then conducting cmos switch 1135 makes energy storage device 1133 carry out normal trickle charge for lithium ion battery 114, in the process of carrying out trickle charge, if the voltage of the energy storage device 1134 that the voltage comparator of ASIC microcontroller 1137 judgement discharging current is bigger does not reach scheduled voltage or is filled always, then carry out trickle charge makes and returns energy storage device 1133 discharge offs step 301 and judge again always.If after charging a period of time, when timing execution in step 330, the voltage of judging the bigger energy storage device of discharging current 1134 reaches its predetermined value, then cutting off cmos switch 1135 makes the energy storage device 1133 and the charging path of lithium ion battery 114 disconnect, the path of energy storage device 1133 of conducting simultaneously and photoelectric cell 1131, make energy storage device 1133 be continued charging, and conducting cmos switch 1136 make the charging path conducting of energy storage device 1134 and lithium ion battery 114 to carry out constant current charge.In charging process, when the voltage of lithium ion battery 114 during more than or equal to nominal voltage or behind energy storage device 1134 discharge offs, then cutting off cmos switch 1136 makes the energy storage device 1134 and the charging path of lithium ion battery 114 disconnect, and the charging path of conducting energy storage device 1134 and photoelectric cell 1132, return step 301 then and judge again.
Otherwise, can determine the nominal voltage of the voltage of lithium ion battery 114 more than or equal to battery, then execution in step 314.
Above-mentioned voltage for the less energy storage device 1133 of ASIC microcontroller 1137 judgement discharging currents reaches the situation of its predetermined value earlier, if ASIC microcontroller 1137 judges that the voltage of the energy storage device 1134 that discharging current is bigger reaches its predetermined value earlier, then execution in step 321.
If judging the voltage of lithium ion battery 114 rations the power supply below the pressure at low electric switch, not conducting cmos switch 1136 and make the charging path conducting of energy storage device 1134 and lithium ion battery 114 then, but after after a while, the voltage of the energy storage device 1133 that discharging current is little reaches its predetermined value, then conducting cmos switch 1135 makes the charging path conducting of energy storage device 1133 and lithium ion battery 114 to charge, surpassing low electric switch up to the voltage of lithium ion battery 114 rations the power supply and presses or energy storage device 1133 discharge offs, at this moment cutting off cmos switch 1135 makes the energy storage device 1133 and the charging path of lithium ion battery 114 disconnect, conducting energy storage device 1133 makes energy storage device 1133 continue to be recharged with photoelectric cell 1131 charging circuits, conducting cmos switch 1136 makes the big energy storage device 1134 of discharging current carry out constant current charge for lithium ion battery 114, after the voltage of lithium ion battery 114 equals nominal voltage or energy storage device 1134 discharge offs, return step 301 and judge again.
If the voltage of judging lithium ion battery 114 is greater than ration the power supply pressure and less than nominal voltage of low electric switch, then conducting cmos switch 1136 makes the big energy storage device 1134 of discharging current carry out constant current charge for lithium ion battery 114, after the voltage of lithium ion battery 114 equals nominal voltage or energy storage device 1134 discharge offs, then interrupt cmos switch 1136 and make energy storage device 1134 and lithium ion battery 114 charging circuits, conducting energy storage device 1134 makes energy storage device 1134 continue to be recharged with photoelectric cell 1132 charging circuits then, if after having spent a period of time, the voltage of the logical energy storage device 1133 that discharging current is little reaches its predetermined value, then conducting cmos switch 1135 makes energy storage device 1133 carry out trickle charge for lithium ion battery 114 immediately, needn't consider what stage the voltage of lithium ion battery 114 reaches this moment, because trickle charge can not cause damage to battery, behind energy storage device 1133 discharge offs, return step 301 and judge again.
If the voltage of judging lithium ion battery 114 is greater than nominal voltage, not conducting cmos switch 1136 and make energy storage device 1134 and lithium ion battery 114 charging circuit conductings, but after the voltage of waiting for the energy storage device 1133 that discharging current is little reaches its predetermined value, conducting cmos switch 1135 makes energy storage device 1133 and lithium ion battery 114 charging circuit conductings to carry out trickle charge, behind energy storage device 1133 discharge offs, return step 301 and judge again.
In above-mentioned charging process, also need pass through the temperature of the SMBUS bus monitoring lithium ion battery 114 of ASIC microcontroller 1137, because often relate to variations in temperature in the middle of the process of charging, when the temperature of lithium ion battery 114 reaches the warning temperature as 50 degrees centigrade, if the constant current charge that the charging process of this moment is then stops; Reach predetermined value then carry out tiny stream and fill if judge the voltage of the energy storage device 1133 of trickle charge,, wait for that battery temperature lowers, after temperature drops to a particular value, return step 301 again and judge again if not then stop charging.
Above-mentioned is better embodiment of the present invention, also there is numerous embodiments in essence, can be one or at least three as photoelectric cell, and the energy storage device of each photoelectric cell polyphone also can be one or at least three, but, be preferably even number for reaching best charging effect; And energy storage device not only can be super capacitor, also can be TunePower, if its satisfy simultaneously can be recharged, storage of electrical energy and discharge.
But above-mentioned only is better embodiment of the present invention; be not to be used to limit protection scope of the present invention; any those skilled in the art of being familiar with will be appreciated that; all within the spirit and principles in the present invention scope; any modification of being done, equivalence replacement, improvement etc. all should be included within the scope of the present invention.
Claims (23)
1. photoelectricity charger, it is characterized in that: comprise at least two photoelectric cells, each photoelectric cell contact at least one energy storage device so that this photoelectric cell to the charging of this energy storage device, and this energy storage device is used for the electronic product battery charge, and wherein the discharging current of at least one energy storage device of at least one photoelectric cell series connection is a trickle.
2. a kind of photoelectricity charger as claimed in claim 1, it is characterized in that: each photoelectric cell contact successively energy storage device, switch, and all photoelectric cells with its to all being connected same controller between the inductive switch, controller is used for the disconnection of control switch with closed, and described switch is used to control the discharge path between energy storage device and the electronic product battery.
3. a kind of photoelectricity charger as claimed in claim 2 is characterized in that: whether the voltage that this controller comprises also that voltage comparator is used in real time or regularly monitors energy storage device reaches scheduled voltage, or whether the monitoring energy storage device is filled.
4. a kind of photoelectricity charger as claimed in claim 1 is characterized in that: this energy storage device is capacitor or TunePower.
5. electronic product with photoelectricity charger, comprise the photoelectricity charger, main frame and main frame provide TunePower for oneself, the photoelectricity charger is with the transform light energy electric energy and to providing the TunePower charging for oneself, provide the TunePower driving host for oneself, it is characterized in that: this photoelectricity charger comprises at least one energy storage device of at least two photoelectric cells and each photoelectric cell polyphone, each photoelectric cell is to the energy storage device charging of its polyphone, all energy storage devices all with provide TunePower for oneself and link to each other to be used for providing TunePower charging for oneself to this, wherein the discharging current of at least one energy storage device of at least one photoelectric cell series connection is a trickle.
6. a kind of electronic product as claimed in claim 5 with photoelectricity charger, it is characterized in that: the energy storage device of each photoelectric cell polyphone and provide for oneself switch also is set between the TunePower, and all photoelectric cells with its to all being connected same controller between the inductive switch, the disconnection that controller is used for control switch is with closed, and described switch is used to control energy storage device and provides discharge path between the TunePower for oneself.
7. a kind of electronic product as claimed in claim 6 with photoelectricity charger, it is characterized in that: whether the voltage that this controller comprises also that voltage comparator is used in real time or regularly monitors energy storage device reaches scheduled voltage, or whether the monitoring energy storage device is filled.
8. a kind of electronic product with photoelectricity charger as claimed in claim 6 is characterized in that: this controller also comprises the voltage that voltage comparator is used in real time or regularly TunePower is provided in monitoring for oneself.
9. a kind of electronic product with photoelectricity charger as claimed in claim 6 is characterized in that: the discharging current of the energy storage device of at least one photoelectric cell polyphone is the regular picture electric current.
10. a kind of electronic product with photoelectricity charger as claimed in claim 5 is characterized in that: this energy storage device is capacitor or TunePower.
11. a method of utilizing luminous energy to charge is characterized in that, presets at least two photoelectric cells, and at least one energy storage device is set between each photoelectric cell and TunePower, the key step of then charging comprises:
Steps A, photoelectric cell are converted into electric energy with luminous energy and to the charging of the energy storage device of its polyphone;
Step B, energy storage device charges to TunePower according to the voltage condition of TunePower; Wherein the electric current of the discharge circuit of at least one energy storage device of at least one photoelectric cell polyphone is a trickle.
12. a kind of method of utilizing luminous energy to charge as claimed in claim 11 is characterized in that: comprise also in this procedure that the voltage comparator that utilizes a controller judges the voltage of TunePower in real time or regularly.
13. a kind of method of utilizing luminous energy to charge as claimed in claim 12 is characterized in that: also comprise between steps A and the step B,
Steps A 1, this voltage comparator are also judged the energy storage device that reaches scheduled voltage at first or be filled electricity in real time or regularly;
Steps A 2 is interrupted this and is reached scheduled voltage at first or be filled the energy storage device of electricity and the charging circuit of its corresponding photoelectric cell.
14. a kind of method of utilizing luminous energy to charge as claimed in claim 13, it is characterized in that, the electric current of the discharge circuit of the energy storage device of at least one photoelectric cell polyphone is the regular picture electric current, and then steps A 1 voltage comparator that is specially controller judges it is that discharging current is that the energy storage device of trickle or the voltage of the energy storage device that discharging current is the regular picture electric current reach scheduled voltage at first or is filled.
15. a kind of method of utilizing luminous energy to charge as claimed in claim 14, it is characterized in that, if the voltage of judging TunePower is less than its low electric switch pressure of rationing the power supply, if and determine to reach scheduled voltage at first in the steps A 1 or be filled electricity for discharging current is the energy storage device of trickle, then step B is specially: the conducting discharging current is that the energy storage device and the charging circuit between the TunePower of trickle carries out trickle charge; Or, if determining in the steps A 1 to reach scheduled voltage at first or be filled electric discharging current is the energy storage device of regular picture electric current, then step B is specially: wait for that discharging current is that the voltage of the energy storage device of trickle reaches scheduled voltage or is filled electricity, the conducting discharging current is that the energy storage device and the charging circuit between the TunePower of trickle carries out trickle charge again.
16. a kind of method of utilizing luminous energy to charge as claimed in claim 15, it is characterized in that, carry out trickle charge and make the voltage of TunePower more than or equal to the low electric switch pressure of rationing the power supply, the voltage comparator of controller judges discharging current is whether the voltage of the energy storage device of regular picture electric current reaches scheduled voltage or be filled:
If, execution in step B1 then, interrupting discharging current is the energy storage device of trickle and the charging circuit between the TunePower, and the conducting discharging current is that the energy storage device and the charging circuit between the TunePower of regular picture electric current carries out constant current charge;
Otherwise execution in step B2 proceeds trickle charge.
17. a kind of method of utilizing luminous energy to charge as claimed in claim 16, it is characterized in that, during execution in step B1, make the voltage of TunePower more than or equal to nominal voltage when carrying out constant current charge, then interrupting discharging current is the energy storage device of regular picture electric current and the charging circuit between the TunePower.
18. a kind of method of utilizing luminous energy to charge as claimed in claim 16, it is characterized in that, during execution in step B2, carry out in the process of trickle charge, if it is that the voltage of the energy storage device of regular picture electric current does not reach scheduled voltage or is filled that the voltage comparator of controller is judged discharging current always, then carry out trickle charge always and make that discharging current is the energy storage device discharge off of trickle, returns execution in step A1 again; Or, carrying out in the trickle charge process, the voltage comparator of controller judgement discharging current is that the voltage of the energy storage device of regular picture electric current reaches scheduled voltage or is filled electricity, then execution in step B1.
19. a kind of method of utilizing luminous energy to charge as claimed in claim 14, it is characterized in that: the voltage of judging TunePower in the steps A 1 is rationed the power supply greater than its low electric switch and is pressed and less than nominal voltage, if determine to reach scheduled voltage at first or be filled electricity for discharging current is the energy storage device of trickle, then step B is: this discharging current of conducting is that the energy storage device and the charging circuit between the TunePower of trickle carries out trickle charge; Or,
If determining to reach scheduled voltage at first or be filled electric discharging current is the energy storage device of regular picture electric current, then step B is: this discharging current of conducting is that the energy storage device and the charging circuit between the TunePower of regular picture electric current carries out constant current charge.
20. a kind of method of utilizing luminous energy to charge as claimed in claim 19, it is characterized in that: in carrying out the trickle charge process, reach scheduled voltage or be filled electricity if the voltage comparator of controller judgement discharging current is the energy storage device of regular picture electric current, then interrupting discharging current is the energy storage device of trickle and the charging circuit between the TunePower, and the conducting discharging current is that the energy storage device and the charging circuit between the TunePower of regular picture electric current carries out constant current charge; Or, carry out in the process of trickle charge, if it is that the voltage of the energy storage device of regular picture electric current does not reach scheduled voltage or is filled that the voltage comparator of controller is judged discharging current always, then carry out trickle charge always and make that discharging current is the energy storage device discharge off of trickle, returns execution in step A1 again.
21. as claim 18 or 19 described a kind of methods of utilizing luminous energy to charge, it is characterized in that, carry out constant current charge and make the voltage of TunePower more than or equal to nominal voltage, then interrupting discharging current is the energy storage device of regular picture electric current and the charging circuit between the TunePower.
22. a kind of method of utilizing luminous energy to charge as claimed in claim 14, it is characterized in that: voltage comparator judges that the voltage of TunePower is more than or equal to its nominal voltage in the steps A 1, if determine to reach scheduled voltage at first or be filled electricity for discharging current is the energy storage device of trickle, then step B is: the conducting discharging current is that the energy storage device and the circuit between the TunePower of trickle carries out trickle charge; Or if the discharging current of determining to reach scheduled voltage at first or being filled electricity is the energy storage device of regular picture electric current, then step B is: keeping discharging current is the off-state of circuit between the energy storage device of regular picture electric current and the TunePower.
23. a kind of method of utilizing luminous energy to charge as claimed in claim 11 is characterized in that: this energy storage device is capacitor or TunePower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100327894A CN100440612C (en) | 2006-01-06 | 2006-01-06 | Photoelectric charger, charging method and its electronic products used thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100327894A CN100440612C (en) | 2006-01-06 | 2006-01-06 | Photoelectric charger, charging method and its electronic products used thereof |
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| Publication Number | Publication Date |
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| CN1858935A CN1858935A (en) | 2006-11-08 |
| CN100440612C true CN100440612C (en) | 2008-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100327894A Active CN100440612C (en) | 2006-01-06 | 2006-01-06 | Photoelectric charger, charging method and its electronic products used thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101582655B (en) * | 2008-05-16 | 2013-05-08 | 鸿富锦精密工业（深圳）有限公司 | Portable electronic device provided with solar battery |
| CN102437596B (en) * | 2011-09-19 | 2014-12-03 | 深圳市今朝时代新能源技术有限公司 | Charging control method for super capacitor |
| WO2018023718A1 (en) * | 2016-08-05 | 2018-02-08 | 韩性峰 | High-accuracy balance charger |
| CN110165723A (en) * | 2018-06-25 | 2019-08-23 | 北京机电工程研究所 | Power supply for dummy round |
| CN111355222B (en) | 2018-12-21 | 2021-05-04 | 荣耀终端有限公司 | Battery protection circuit, battery protection board, battery and terminal equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6081096A (en) * | 1995-10-31 | 2000-06-27 | Motorola, Inc. | Apparatus and method for discharging and charging a multiple battery arrangement |
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- 2006-01-06 CN CNB2006100327894A patent/CN100440612C/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6081096A (en) * | 1995-10-31 | 2000-06-27 | Motorola, Inc. | Apparatus and method for discharging and charging a multiple battery arrangement |
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| CN1858935A (en) | 2006-11-08 |
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