CN101588079A - Power supply method and power supply device for electronic device and electronic device - Google Patents

Power supply method and power supply device for electronic device and electronic device Download PDF

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Publication number
CN101588079A
CN101588079A CNA2008101119756A CN200810111975A CN101588079A CN 101588079 A CN101588079 A CN 101588079A CN A2008101119756 A CNA2008101119756 A CN A2008101119756A CN 200810111975 A CN200810111975 A CN 200810111975A CN 101588079 A CN101588079 A CN 101588079A
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China
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energy
storage module
module
electronic equipment
electric
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CNA2008101119756A
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Chinese (zh)
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CN101588079B (en
Inventor
沈晓魁
陈诚
车海康
陆青顺
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联想(北京)有限公司
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Priority to CN200810111975.6A priority Critical patent/CN101588079B/en
Publication of CN101588079A publication Critical patent/CN101588079A/en
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Abstract

The invention provides a power supply method and a power supply device for an electronic device and the electronic device. The electronic device comprises a power supply module, a charging module, a first energy storage module, a second energy storage module and a control module, wherein the power supply module comprises an external energy conversion module for converting external energy into electric energy; the charging module is used for charging by using the converted electric energy; the first energy storage module and the second energy storage module are used for storing the converted electric energy; and the control module is used for controlling both the first energy storage module and the second energy storage module in a charging state or the first energy storage module in a charging state while the second energy storage module in a power supply state, when the second energy storage module is in a charging state, the charging module or the first energy storage module charges the second energy storage module, and when the voltage of the first energy storage module is higher than that of the second energy storage module, the first energy storage module charges the second energy storage module. The technical proposal can reduce the dependence of the electronic device on a battery and achieve the effects of energy conservation and environmental protection.

Description

A kind of method of supplying power to of electronic equipment, electric supply installation and electronic equipment
Technical field
The present invention relates to the power devices technology, particularly relate to a kind of method of supplying power to, electric supply installation and electronic equipment of electronic equipment.
Background technology
At present, wireless input Option equipment such as hand-held portable devices such as various electronic equipments such as notebook computer, mobile phone, PDA and wireless mouse, Wireless Keyboard are used in industry-by-industry more and more widely, but these electronic equipments are not when connecing external power supply, mainly be to power, and its battery endurance always can not be satisfactory by battery.Existing solution mainly comprises:
1. increase the capacity of battery.
At present, portable equipment such as notebook computer, mobile phone mainly is the prolongation that realizes battery endurance by the capacity that increases battery.Adopt the shortcoming of this scheme to be: for portable equipment, to increase the weight that battery capacity can increase equipment be carried, and increase the cost that the client buys.
2. reduce the power consumption of main element.
To Option products such as wireless mouse, Wireless Keyboards mainly is the prolongation that realizes the battery flying power by the power consumption that reduces main element.Adopt the shortcoming of this scheme to be: the power consumption that reduces element can reduce the performance of product, and the actual effect that produces is general.In the prior art, even adopted this scheme, Option such as wireless mouse, keyboard product still needs to change continually battery, brought trouble so not only for user's use, increased the cost that the client buys, and change battery continually and can cause a large amount of precious metals such as nickel and cadmium etc. to be expended, the waste resource, and polluted environment.
Thereby, search out a kind of new method of supplying power to power electronic equipment, be the thing of the task of top priority with the defective that overcomes above-mentioned method of supplying power to.
Summary of the invention
Embodiments of the invention provide a kind of method of supplying power to, electric supply installation and electronic equipment of electronic equipment, to solve the technical problem that electronic equipment too relies on battery in the prior art.
To achieve these goals, on the one hand, provide a kind of electronic equipment, comprising: supply module, wherein, described supply module comprises:
The external energy modular converter is used for external energy is converted to electric energy;
Charging module is used to utilize the described electric energy of changing out to charge;
First, second energy-storage module is used to store the described electric energy of changing out;
Control module is used to control described first, second energy-storage module and all is in charged state, or only described first energy-storage module is in charged state and described second energy-storage module is in power supply state; When described second energy-storage module is in charged state, to described second energy-storage module charging is described charging module or described first energy-storage module, wherein, when the voltage of described first energy-storage module was higher than the voltage of described second energy-storage module, described first energy-storage module charged to described second energy-storage module.
On the other hand, provide a kind of method of supplying power to of electronic equipment, wherein, comprise the steps:
External energy is converted to electric energy;
In charged state, charging module charges into first energy-storage module and second energy-storage module with described electric energy;
At power supply state, described second energy-storage module provides output voltage, and charging module continues to charge to described first energy-storage module, and stops to charge into electric energy to described second energy-storage module;
When described second energy-storage module after the power supply enters charged state again, described charging module and/or described first energy-storage module charge into described electric energy to described second energy-storage module, wherein, when the voltage of described first energy-storage module was higher than the voltage of described second energy-storage module, described first energy-storage module charged to described second energy-storage module.
Another aspect provides a kind of electric supply installation of electronic equipment, wherein, comprising:
The external energy modular converter is used for external energy is converted to electric energy;
Charging module is used to utilize the described electric energy of changing out to charge;
First, second energy-storage module is used to store the described electric energy of changing out;
Control module is used to control described first, second energy-storage module and all is in charged state, or only described first energy-storage module is in charged state and described second energy-storage module is in power supply state; When described second energy-storage module is in charged state, to described second energy-storage module charging is described charging module or described first energy-storage module, wherein, when the voltage of described first energy-storage module was higher than the voltage of described second energy-storage module, described first energy-storage module charged to described second energy-storage module.
A technical scheme in the technique scheme has following technique effect:
By external energy such as luminous energy, mechanical energy, heat energy etc. are converted to electric energy, and the above-mentioned electric energy of changing out stored, can utilize the electric energy changed out to power for electronic equipment such as notebook, mobile phone, PDA and wireless input Option equipment etc., and the double-energy storage module can guarantee fast, in time to the power supply of electronic equipment; When second energy-storage module provides output voltage, first energy-storage module still keeps charged state, so both can utilize external energy fully, in the time of again can second energy-storage module after power supply need charging, utilize first energy-storage module to the second energy-storage module accelerated charging, make the energy storage of second energy-storage module can charge into the sufficient electrical energy of the subset operate as normal of powering soon, the reliability that the electric energy that has guaranteed to utilize the said external power conversion to go out is powered, thereby under the situation of the performance that does not need to increase battery capacity or painstakingly reduce some product, can strengthen the flying power of battery in order to reduce power consumption, effectively prolong the handheld device stand-by time, and reduce the cost of product; And, utilizing first energy-storage module when second energy-storage module is powered, even there is not the external electric energy input this moment, also can be the power supply of second energy-storage module in time; And, for Option equipment such as wireless mouses, can utilize above-mentioned energy such as the electric energy changed such as luminous energy, mechanical energy, heat energy by the external world to power fully, and need not to re-use battery such as rechargeable battery, alkaline battery etc., thereby make the battery use amount be used to consume industry descend, reduce the potential threat of environmental pollution and the loss of non-renewable resources, reached the effect of energy-saving and environmental protection; And simultaneously, greatly reduce the cost of product, the actual expenditure of having saved the client.
Description of drawings
Fig. 1 is the structural representation of the electronic equipment of the embodiment of the invention;
Fig. 2 is the circuit diagram of the supply module of electronic equipment in the embodiment of the invention;
Fig. 3 is the circuit diagram of the charging module of electronic equipment in the embodiment of the invention;
Fig. 4 is the charging voltage characteristic curve schematic diagram of super capacitor;
Fig. 5 is the charging current characteristic curve schematic diagram of super capacitor;
Fig. 6, Fig. 7 are the discharge characteristic curve schematic diagram of super capacitor;
Fig. 8 is the schematic flow sheet of the power electronic equipment method of the embodiment of the invention.
Embodiment
For technical problem, technical scheme and advantage that the embodiment of the invention will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
In realizing the process of the embodiment of the invention, the inventor finds to have had now the whole bag of tricks, the luminous energy in the external world, mechanical energy, heat energy etc. can be changed into electric energy, and it is collected.
For example, the mechanical energy conversion device that mechanical energy is converted to electric energy that utilizes the piezoelectric realization is by adding piezoelectric on the button of keyboard, the mechanical energy that can when user's key tap the key tap vibration be produced is converted to electric energy, and along with the increase of number of taps, the electric energy of changing out is more and more.
And for example, luminous energy such as solar energy are converted to the sunlight conversion equipment of electric energy.The cardinal principle of device for converting solar energy is by the use semi-conducting material, will place on the thicker P type semiconductor than thin N type semiconductor, and when the irradiate light solar battery surface, a part of photon is absorbed by silicon materials; The energy delivery of photon has been given silicon atom, makes electronics take place to move more, becomes free electron and gathers in P-N knot both sides and formed potential difference, when circuit is connected in the outside, under the effect of this voltage, flows through external circuit and produces certain power output having electric current.This process essence be: photon energy converts the process of electric energy to.
For another example, with thermal power transfer be the thermal energy conversion device of electric energy.Certain temperature difference being arranged between staff and equipment such as the electronic equipment, can utilize semiconductor refrigerating (or heating)) altitude temperature difference effect of (Peltier's element) generates electricity.Peltier's element adopts the semiconductor element to the CPU heat radiation, and it utilizes peltier effect to freeze, and promptly passes through electric current on two kinds of different metals (comprising semiconductor) composition surface, just occurs heat release and heat absorption phenomenon respectively in the both sides on composition surface.On the contrary, if make the temperature difference, will produce electromotive force, Seebeck effect that Here it is in the both sides at junction surface.With a Peltier's element generating, under the temperature difference about 40 ℃, the about 0.2V of the electromotive force of an element, under the condition of existing large scale integrated circuit we can be on a circuit board integrated up to a hundred units in series, and the temperature difference of staff and equipment generally 10 the degree about, can provide certain electric energy like this.
In realizing the process of the embodiment of the invention, the inventor finds the electric energy conversion method by above-mentioned three kinds of external energies, can be with above-mentioned various energy such as mechanical energy, luminous energy, thermal energy collecting gets up and be applied in the electronic equipment, as the source of electronic equipment energy.For example, can be with heat energy and/or luminous energy energy source during as electronic equipment standby at ordinary times, thereby can keep electronic equipment always at the state that can wake up, and utilize the mechanical energy of user's key tap to be used as the energy source of electronic equipment when operating with full load.Like this, can reduce the dependence of electronic equipment to external power supply or internal battery, being provided with can be under the situation that does not have external power supply and internal battery, and electronic equipment still can obtain enough energy, and operate as normal.
Fig. 1 is the structural representation of the electronic equipment of the embodiment of the invention.As Fig. 1, the electronic equipment 100 of the embodiment of the invention comprises: supply module 101, and this supply module comprises again: external energy modular converter 102 is used for external energy is converted to electric energy; Charging module 103 is used to utilize the described electric energy of changing out to charge; First, second energy-storage module 104 and 105 is used to store the described electric energy of changing out; Control module 106 is used to control described first, second energy-storage module and all is in charged state, or only described first energy-storage module is in charged state and described second energy-storage module is in power supply state; When described second energy-storage module is in charged state, to described second energy-storage module charging is described charging module or described first energy-storage module, wherein, when the voltage of described first energy-storage module was higher than the voltage of described second energy-storage module, described first energy-storage module charged to described second energy-storage module.
Exemplarily, when second energy-storage module power supply back enters charged state again owing to situations such as undertensions, this moment is because first energy-storage module has been stored sufficient electric energy, at charging module when second energy-storage module charges, first energy-storage module can be to the second energy-storage module accelerated charging, and, even there has not been external electric energy this moment, also can be by first energy-storage module to the charging of second energy-storage module, to guarantee the normal electric energy that uses of the sufficient enough electronic equipments of second energy-storage module.
Exemplarily, the external energy modular converter comprises at least one in the following modular converter: the user is knocked the piezoelectricity modular converter that mechanical energy that the button that comprises piezoelectric produces is converted to electric energy; Photon energy in the sunlight is converted to the solar energy conversion module of electric energy; Utilizing the temperature difference between user and the electronic equipment, is the thermal power transfer module of electric energy with thermal power transfer.
Preferably, the external energy modular converter comprises above-mentioned piezoelectricity modular converter at least.
In the specific implementation, the external energy modular converter can comprise above-mentioned piezoelectricity modular converter, solar energy conversion module and thermal power transfer module.When the user uses electronic equipment, collect external energy while using, and the external energy of collecting is converted to electric energy.Wherein, can be with solar energy and heat energy energy source during as electronic equipment standby at ordinary times, but thereby can keep equipment to be in wake-up states always, utilize the user to knock to comprise the energy source of mechanical energy when operating with full load of the generation that button vibrates of piezoelectric.Thereby, the use that can under the situation that does not have external power supply and internal battery, do as usual of electronic equipment such as handheld device, wireless input Option product.
Preferably, the supply module of the electronic equipment of the embodiment of the invention also comprises Voltage Regulator Module, is used for the output voltage that second energy-storage module provides is adjusted to predetermined rated value, and then offers module or the parts that need electric energy.By this Voltage Regulator Module, the output voltage that makes second energy-storage module provide can directly offer electronic equipment and use.
Fig. 2 is the circuit diagram of the supply module of the embodiment of the invention.As Fig. 2, external energy modular converter (not shown) charges into first with the electric energy of changing out by charging module, second energy-storage module, the output of charging module is connected with the input of first energy-storage module, other end ground connection (GDD), charging module is directly in parallel with first energy-storage module, first K switch 1 is arranged on the output of first energy-storage module and the input of second energy-storage module, the output of first energy-storage module is connected by first switch with the input of second energy-storage module, the equal ground connection of the other end of first energy-storage module and second energy-storage module, the output of second energy-storage module is provided with second switch K2, second energy-storage module is connected with Voltage Regulator Module by second switch, and Voltage Regulator Module is exported voltage-regulation to predetermined rated value.Wherein, during first switch closure, first energy-storage module and second energy-storage module are connected in parallel, the charging module and second energy-storage module are in connection status, charging module can be to first energy-storage module and the charging of second energy-storage module, if and this moment first energy-storage module voltage when being higher than second energy-storage module, first energy-storage module also can charge to second energy-storage module.Wherein, when second switch is closed, second energy-storage module and Voltage Regulator Module are in connection status, the electric energy that stores in second energy-storage module just can export Voltage Regulator Module to, at this moment, if first switch is also closed, then the electric energy in first energy-storage module also may be output to Voltage Regulator Module, usually, because the change in voltage amplitude of charging module output is bigger, more steady for the voltage that provides to electronic equipment is provided, when second switch is closed, with first switch opens, promptly when second energy-storage module is powered, stop to second energy-storage module input electric energy; When second switch was opened, the second energy storage switch was in Voltage Regulator Module and is connected the state that disconnects, and the electric energy that stores in second energy-storage module can't export Voltage Regulator Module to.Control module is in and opens or closure state by controlling first switch, and whether may command charges to second energy-storage module; Be in and open or closure state by the control second switch, whether may command second energy-storage module provides output voltage, whether exports electric energy thereby control whole supply module.
In this embodiment, control module comprises: first switch, second switch and switch control module, switch control module are used for when first, second energy-storage module all is in charged state, and first switch closure is stated in control, and second switch is opened; Be in charged state at first energy-storage module, when described second energy-storage module is in power supply state, control first switch opens, the second switch closure.
Preferably, switch control module can be realized by processor by the establishment control program, this switch control module can be arranged in the control device of electronic equipment, in the microprocessor as electronic equipment, for example, among the microprocessor MCU in mobile phone, wireless mouse or the Wireless Keyboard, and for example among the embedded controller EC of notebook computer.
Preferably, first energy-storage module comprises first electric capacity at least.
Preferably, second energy-storage module comprises second electric capacity at least.
Preferably, first energy-storage module comprises: first electric capacity reaches the one or more electric capacity with first capacitances in series.
Preferably, second energy-storage module comprises: second electric capacity reaches the one or more electric capacity with second capacitances in series.
What preferably, first energy-storage module and second energy-storage module comprised is super capacitor.
Preferably; charging module adopts and can adopt voltage stabilizing/anti-overshoot chip such as AAT4620; independently current-limiting circuit, loop of power circuit, reverse blocking protective circuit and the ready pin of system combine this chip with two with a P channel mosfet current switch; when not exceeding the host power supply specification; guaranteed that ultracapacitor is filled with the fastest speed; and reduced components and parts and used sum, can satisfy the requirement of plate space of planes.
Preferably, charging module can adopt traditional bridge rectifier electric current and common direct current transformation circuit, as shown in Figure 3.
For opening or closure, be defined as follows two states according to first, second switch:
First state, first switch closure and second switch are opened;
Second state, first switch opens and second switch closure.
Among this embodiment, control module realizes power supply control by the state of controlling first, second switch, comprises one or more in the following controlled step particularly:
A, when the electronic equipment initial application, switch is set to first state, so that directly also filling in first energy-storage module and second energy-storage module apace by charging module, the electric energy that external energy is changed out stores, as storing in first super capacitor and second super capacitor, and standby when electric weight is full of;
B when electric energy output demand, when promptly electronic equipment needs electric energy, for example, has and moves or knock when producing when detecting mouse, and switch is set to second state; At this moment, power constantly for electronic equipment such as mouse by second energy-storage module as second super capacitor, and this moment, charging module stops to charge to second energy-storage module, and first energy-storage module still can be in charge mode as first super capacitor, and the electric energy that this moment, external energy was changed out still can continually be input to first energy-storage module as standby in first super capacitor;
C, when being in the idle condition that does not need electric energy, electronic equipment reaches the scheduled time during length, exemplarily, when for example the mouse certain hour does not use, when the processor MCU of mouse enters standby (standby) pattern, first state is returned in the state setting of switch, at this moment, the electric energy that external energy is changed out again can be fully with two energy-storage modules for example two super capacitors be charged to optimum state; And first energy-storage module can carry out accelerated charging to second super capacitor as first super capacitor, uses the situation of short of electricity for a long time to avoid electronic equipment such as mouse;
D, when the output voltage of Voltage Regulator Module is lower than predetermined rated value, for example, when being lower than the normal working voltage of mouse, first state is returned in the state setting of switch, stop to export electric energy to control second energy-storage module, this moment, first, second energy-storage module was in charged state again, and since this moment first energy-storage module as the electric energy abundance of first super capacitor, even under the situation of no extraneous electric energy input, still can rapidly second energy-storage module be returned to suitable electric energy to satisfy the needs of electronic equipment such as mouse operate as normal as second super capacitor.
Thereby, the control that reaches two switches by the double-energy storage module can provide reliable power supply to electronic equipment when electronic equipment needs, and can reduce at the electric energy of second energy-storage module of powering when making that the voltage of exporting is lower than the rated value of electronic equipment, make second energy-storage module be in charged state, the charging module and/or first energy-storage module in time charge into electric energy to second energy-storage module, especially, even this moment, extraneous no electric energy was imported, still can be rapidly first energy-storage module by the electric energy abundance electric energy in second energy-storage module is returned to the need of work that can satisfy electronic equipment rapidly.
Preferably, control module comprises at least as one in the lower module:
Idle control module is used for being in the idle condition that does not need electric energy at described electronic equipment and reaches the scheduled time during length, controls described second energy-storage module and is in charged state;
The low output voltage control module is used for controlling described second energy-storage module and being in charged state when the output voltage that detects described second energy-storage module and provide is lower than predetermined rated value.
Exemplarily, idle control module and low output voltage control module can be realized by processor by programming, idle control module and low output voltage control module can be arranged in the control device of electronic equipment, among the microprocessor MCU as electronic equipment, etc.
Preferably, the electronic equipment of the embodiment of the invention can be wireless input devices such as notebook electric energy, mobile phone, PDA, wireless mouse or Wireless Keyboard.
Because the super capacitor excellent characteristic when adopting super capacitor to make energy-storage module, can guarantee the supply of electronic equipment electric energy more timely, reliably.Fig. 4 is the charging voltage characteristic curve schematic diagram of super capacitor, shows the 95% o'clock required time that the super capacitor both end voltage is charged to the maximum voltage Vmax that can fill.As Fig. 4, be example with the electric capacity of 0.47F, from left to right, be respectively that build-out resistor is the charging voltage characteristic curve of 2000 ohm, 4000 ohm and 8000 ohm, transverse axis is the charging interval, the longitudinal axis is a charging voltage.With 2000 ohm build-out resistors is example, and the super capacitor of 0.47F can charge to about 3.3V with about 20 minutes time, satisfied the work requirements of mouse.Other electronic equipment is along with the difference of rated operational voltage, and the required charging interval is understood some difference, can select the super capacitor of suitable capacity according to the situation of electronic equipment power consumption.Fig. 5 is the charging current characteristic curve schematic diagram of super capacitor.As Fig. 5, transverse axis is the charging interval, and the longitudinal axis is a charging current.Corresponding with Fig. 4, as Fig. 5, the starting stage of charging, charging current is bigger, and after charging reached predetermined voltage by the time, charging current reduced.As Fig. 5, the charging current characteristic curve when being respectively build-out resistor from top to bottom and being 2000 ohm, 4000 ohm and 8000 ohm.
Fig. 6, Fig. 7 are the discharge characteristic curve schematic diagram of super capacitor, and wherein, transverse axis is discharge time, and the longitudinal axis is a discharge voltage.The flash-over characteristic of super capacitor can be expressed as V (t)=Vmaxe (t/R LC), wherein Vmax is the maximum voltage that can fill, R LBe load resistance, C is the super capacitor capacity.Among Fig. 6, Fig. 7, from left to right, the super capacitor discharge characteristic curve of difference corresponding 0.047F, 0.47F and 1.5F, wherein, Vmax is 4.3V among Fig. 6, among Fig. 7, Vmax is 3.6V.As Fig. 7, for the super capacitor of the 0.47F of Vmax=3.6V, can guarantee that mouse steady operation under operating voltage can not influence its continuous use for a long time when daily use mouse.
Can be thereby the electric current and voltage that the embodiment of the invention is exported energy-storage module by electric energy conversion module is adjusted to the equipment rated value directly to the equipment energy supply, reach the effect of energy-saving and environmental protection, also the electric energy of energy-storage module output can be resupplied electronic equipment after the energy storage once more by built-in big electric capacity or inductance etc. more certainly.
The embodiment of the invention also discloses a kind of method of supplying power to of electronic equipment.Fig. 8 is the schematic flow sheet of the method for supplying power to of the embodiment of the invention.As Fig. 8, the method for this embodiment comprises the steps:
Step 801 is converted to electric energy with external energy;
Step 802, in charged state, charging module charges into first energy-storage module and second energy-storage module with electric energy;
Step 803, at power supply state, second energy-storage module provides output voltage, and charging module continues to charge to first energy-storage module, and stops to charge into electric energy to described second energy-storage module;
Step 804, when described second energy-storage module after the power supply enters charged state again, described charging module and/or described first energy-storage module charge into described electric energy to described second energy-storage module, wherein, when the voltage of described first energy-storage module was higher than the voltage of described second energy-storage module, described first energy-storage module charged to described second energy-storage module.
Preferably, in the method for the embodiment of the invention, the electric energy that the said external power conversion goes out comprises one or more in the following electric energy: will knock the electric energy that mechanical energy that button that piezoelectric makes produces is changed out; The electric energy that the photon energy of sunlight is changed out; The electric energy that the temperature difference between user and the described electronic equipment is changed out.Described method, it is characterized in that, input at described second energy-storage module is provided with first switch, the energy that described external conversion goes out directly charges into described first energy-storage module, and electric energy stored charges into described second energy-storage module by described first switch in energy that described external conversion goes out and described first energy-storage module.
Preferably, in the method for the embodiment of the invention, after described second energy-storage module provides output voltage, also comprise: the output voltage that described second energy-storage module is provided is adjusted to the step of subscription rate definite value.
Preferably, in the method for the embodiment of the invention, first switch is set at the output of described first energy-storage module and the input of described second energy-storage module; Voltage output end at described second energy-storage module is provided with second switch; In described charged state, control described first switch closure, described second switch is opened; At described power supply state, control described first switch opens, described second switch closure.
Preferably, in the method for the embodiment of the invention, after described second energy-storage module provides output voltage, also comprise: judge that described electronic equipment is in the idle condition that does not need electric energy and whether has reached scheduled time length; In this way, then control described first switch closure, described second switch is opened.
Preferably, in the method for the embodiment of the invention, after described second energy-storage module provides output voltage, also comprise: judge whether the output voltage that described second energy-storage module provides is lower than predetermined rated value; In this way, then control described first switch closure, described second switch is opened.
Preferably, in the method for the embodiment of the invention, described first, second energy-storage module is first, second capacitance module; Described first capacitance module comprises at least: first electric capacity; Described second capacitance module comprises at least: second electric capacity.
Preferably, in the method for the embodiment of the invention, described electric capacity is super capacitor.
The embodiment of the invention also discloses a kind of electric supply installation of electronic equipment, wherein, comprising: the external energy modular converter is used for external energy is converted to electric energy; Charging module is used to utilize the described electric energy of changing out to charge; First, second energy-storage module is used to store the described electric energy of changing out; Control module is used to control described first, second energy-storage module and all is in charged state, or only described first energy-storage module is in charged state and described second energy-storage module is in power supply state; When described second energy-storage module is in charged state, to described second energy-storage module charging is described charging module or described first energy-storage module, wherein, when the voltage of described first energy-storage module was higher than the voltage of described second energy-storage module, described first energy-storage module charged to described second energy-storage module.
The above is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the described principle of the embodiment of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (13)

1. electronic equipment, comprising: supply module is characterized in that described supply module comprises:
The external energy modular converter is used for external energy is converted to electric energy;
Charging module is used to utilize the described electric energy of changing out to charge;
First, second energy-storage module is used to store the described electric energy of changing out;
Control module is used to control described first, second energy-storage module and all is in charged state, or only described first energy-storage module is in charged state and described second energy-storage module is in power supply state; When described second energy-storage module is in charged state, to described second energy-storage module charging is described charging module or described first energy-storage module, wherein, when the voltage of described first energy-storage module was higher than the voltage of described second energy-storage module, described first energy-storage module charged to described second energy-storage module.
2. electronic equipment according to claim 1 is characterized in that, described external energy modular converter comprises one or more in the following modular converter:
The piezoelectricity modular converter is used for being converted to electric energy with knocking the mechanical energy that button that piezoelectric makes produces;
Solar energy conversion module is used for the photon energy of sunlight is converted to electric energy;
The thermal power transfer module is used for the temperature difference between user and the described electronic equipment is converted to electric energy.
3. electronic equipment according to claim 1 is characterized in that, described supply module also comprises:
Voltage Regulator Module is used for the output voltage that described second energy-storage module provides is adjusted to predetermined rated value.
4. electronic equipment according to claim 1 is characterized in that, described control module comprises:
First switch is arranged between the input of the output of described first energy-storage module and described second energy-storage module;
Second switch is arranged on the output of described second energy-storage module, and the output voltage that described second energy-storage module provides is by described second switch output;
Switch control module is used for controlling described first switch closure when described first, second energy-storage module all is in charged state, and described second switch is opened; Be in charged state at described first energy-storage module, when described second energy-storage module is in power supply state, control described first switch opens, described second switch closure.
5. electronic equipment according to claim 1 is characterized in that, described control module also comprises at least one as lower module:
Idle control module is used for being in the idle condition that does not need electric energy at described electronic equipment and reaches the scheduled time during length, controls described second energy-storage module and is in charged state;
The low output voltage control module is used for controlling described second energy-storage module and being in charged state when the output voltage that detects described second energy-storage module and provide is lower than predetermined rated value.
6. according to each described electronic equipment among the claim 1-5, it is characterized in that described first, second energy-storage module is first, second capacitance module; Described first capacitance module comprises at least: first electric capacity; Described second capacitance module comprises at least: second electric capacity.
7. electronic equipment according to claim 6 is characterized in that, described electric capacity is super capacitor.
8. electronic equipment according to claim 1 is characterized in that, described electronic equipment is: notebook computer, mobile phone, PDA, wireless mouse or Wireless Keyboard.
9. the method for supplying power to of an electronic equipment is characterized in that, comprises the steps:
External energy is converted to electric energy;
In charged state, charging module charges into first energy-storage module and second energy-storage module with described electric energy;
At power supply state, described second energy-storage module provides output voltage, and charging module continues to charge to described first energy-storage module, and stops to charge into electric energy to described second energy-storage module;
When described second energy-storage module after the power supply enters charged state again, described charging module and/or described first energy-storage module charge into described electric energy to described second energy-storage module, wherein, when the voltage of described first energy-storage module was higher than the voltage of described second energy-storage module, described first energy-storage module charged to described second energy-storage module.
10. method according to claim 9 is characterized in that, at the output of described first energy-storage module and the input of described second energy-storage module first switch is set; Voltage output end at described second energy-storage module is provided with second switch;
In described charged state, control described first switch closure, described second switch is opened; At described power supply state, control described first switch opens, described second switch closure.
11., it is characterized in that described first, second energy-storage module is first, second capacitance module according to claim 9 or 10 described methods; Described first capacitance module comprises at least: first electric capacity; Described second capacitance module comprises at least: second electric capacity.
12. method of supplying power to according to claim 11 is characterized in that, described electric capacity is super capacitor.
13. the electric supply installation of an electronic equipment is characterized in that, comprising:
The external energy modular converter is used for external energy is converted to electric energy;
Charging module is used to utilize the described electric energy of changing out to charge;
First, second energy-storage module is used to store the described electric energy of changing out;
Control module is used to control described first, second energy-storage module and all is in charged state, or only described first energy-storage module is in charged state and described second energy-storage module is in power supply state; When described second energy-storage module is in charged state, to described second energy-storage module charging is described charging module or described first energy-storage module, wherein, when the voltage of described first energy-storage module was higher than the voltage of described second energy-storage module, described first energy-storage module charged to described second energy-storage module.
CN200810111975.6A 2008-05-20 2008-05-20 A kind of method of supplying power to of electronic equipment, electric supply installation and electronic equipment CN101588079B (en)

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