CN104052108B - Power supply circuit, method of supplying power to and a kind of electronic equipment of electronic equipment - Google Patents
Power supply circuit, method of supplying power to and a kind of electronic equipment of electronic equipment Download PDFInfo
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- CN104052108B CN104052108B CN201410221552.5A CN201410221552A CN104052108B CN 104052108 B CN104052108 B CN 104052108B CN 201410221552 A CN201410221552 A CN 201410221552A CN 104052108 B CN104052108 B CN 104052108B
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Abstract
The invention discloses the power supply circuit of electronic equipment, method of supplying power to and a kind of electronic equipment, the circuit includes：Electric voltage observation circuit, control circuit, auxiliary power circuit and the main power circuit including battery；Auxiliary power circuit, for collecting energy and being converted into storing after electric energy；Electric voltage observation circuit, the voltage for monitoring auxiliary power circuit sends the first notification signal when the voltage of auxiliary power circuit reaches the first preset value to control circuit, and the second notification signal is sent to control circuit when the voltage of auxiliary power circuit is less than the second preset value；Wherein, the first preset value is more than the second preset value；Circuit is controlled, for when receiving the first notification signal, by power circuit supplemented by the working power circuit switching of electronic equipment, when receiving the second notification signal, the working power circuit of electronic equipment is switched into main power circuit.Technical scheme can farthest extend the continuation of the journey working time of electronic equipment, so as to lift Consumer's Experience.
Description
Technical field
The present invention relates to power electronic equipment field, the more particularly to power supply circuit of electronic equipment, method of supplying power to and one kind
Electronic equipment.
Background technology
At present, intelligent electronic device, such as Intelligent bracelet, intelligent watch, intelligent glasses, Intelligent button, are all adopted mostly
It is powered with button cell or chargeable lithium cell, due to the finite capacity of button cell, user needs frequency when in use
Numerous replacing battery；And chargeable lithium cell is limited to the limited limitation in the small space of electronic equipment volume, the battery of lithium battery holds
Amount is general to be also no more than 100mAh.Therefore, existing power electronic equipment battery capacity is small, electronic equipment cruising time is short, this
One defect reduces the usage experience of user.
The content of the invention
The invention provides the power supply circuit of a kind of electronic equipment, method of supplying power to and a kind of electronic equipment, to solve electronics
Equipment cruising time is short to cause the problem of Consumer's Experience is reduced.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
According to an aspect of the invention, there is provided the power supply circuit of a kind of electronic equipment, the circuit includes：Voltage monitoring
Circuit, control circuit, auxiliary power circuit and the main power circuit including battery；
Auxiliary power circuit, for collecting energy and being converted into storing after electric energy；
Electric voltage observation circuit, the voltage for monitoring auxiliary power circuit storage, when the voltage of auxiliary power circuit reaches first
The first notification signal is sent to control circuit during preset value, when the voltage that auxiliary power circuit is stored is less than the second preset value to control
Circuit processed sends the second notification signal；Wherein, the first preset value is more than the second preset value；
Circuit is controlled, for when receiving the first notification signal, by electricity supplemented by the working power circuit switching of electronic equipment
Source circuit, when receiving the second notification signal, main power circuit is switched to by the working power circuit of electronic equipment.
Wherein, auxiliary power circuit includes：Power conversion circuits and electrical energy storage circuit；
Power conversion circuits, for collecting energy and being converted into storing in electrical energy storage circuit after electric energy；
Electrical energy storage circuit, for storing electric energy；
Power conversion circuits include：Solar energy change-over circuit and/or kinetic energy change-over circuit.
Wherein, solar energy change-over circuit includes：Thin-film solar cells and MPPT maximum power point tracking MPPT controller；Kinetic energy
Change-over circuit includes：Piezoelectic oscillatory sheet and rectifier circuit.
Wherein, the shape of thin-film solar cells and the appearance and modeling of electronic equipment are consistent, and thin-film solar cells is attached
On the outer surface of electronic equipment.
Wherein, the battery in piezoelectic oscillatory sheet and main power circuit is separately positioned on the two ends of electronic equipment, wherein, it is provided with
One end of piezoelectic oscillatory sheet can flexibly be bent, and one end provided with main power circuit battery can shape bending.
Wherein, electrical energy storage circuit includes capacitor.
According to another aspect of the present invention there is provided a kind of electronic equipment, the electronic equipment is included as of the invention one
The power supply circuit of aspect.
According to a further aspect of the invention there is provided the method for supplying power to of a kind of electronic equipment, this method includes：Collect energy
Measure and be converted into storing after electric energy in auxiliary power circuit；
Monitor the voltage of auxiliary power circuit；
When the voltage of auxiliary power circuit reaches the first preset value, by electricity supplemented by the switching of the working power circuit of electronic equipment
Source circuit；When the voltage of auxiliary power circuit is less than the second preset value, by electricity based on the switching of the working power circuit of electronic equipment
Source circuit；Wherein, the first preset value is more than the second preset value.
Wherein, collecting energy and being converted into storing auxiliary power circuit after electric energy includes：Pass through solar energy change-over circuit
Collect solar energy and convert solar energy into after electric energy and store in auxiliary power circuit；And/or, collected by kinetic energy change-over circuit
Kinetic energy and converting kinetic energy into after electric energy is stored in auxiliary power circuit.
Wherein, the solar energy change-over circuit includes：Thin-film solar cells and MPPT maximum power point tracking MPPT controller；
The kinetic energy change-over circuit includes：Piezoelectic oscillatory sheet and rectifier circuit；
Thin-film solar cells is shaped to the shape consistent with the appearance and modeling of electronic equipment, and by film too
Positive energy battery is attached on the outer surface of electronic equipment, and auxiliary electricity is arrived to collect solar energy and convert solar energy into storage after electric energy
In source circuit；The battery of piezoelectic oscillatory sheet and main power circuit is separately positioned on to the two ends of electronic equipment, wherein, provided with piezoelectricity
One end of oscillator plate can flexibly be bent, and one end provided with main power circuit battery can shape bending, to collect kinetic energy and will
Kinetic energy is converted into storing after electric energy in auxiliary power circuit.
The invention provides a kind of multi source contribution technical scheme applied to electronic equipment, with solar powered and/or
The multiple feed circuit that piezoelectric vibration is powered with traditional lithium battery power supply, this power supply circuit of the invention and method of supplying power to can
At utmost to extend the continuation of the journey working time of electronic equipment, Consumer's Experience is lifted.Moreover, being shaken using solar energy and/or piezoelectricity
Swing as supplementary energy, also with clean energy environmental protection, long-lived advantage.Meanwhile, included present invention also offers one kind
The electronic equipment of one aspect of the invention power supply circuit, power supply circuit of the electronic equipment due to containing the present invention, thus
Possess that cruising time is long, the advantages of user's good usage experience can be brought.
Brief description of the drawings
Fig. 1 is the schematic diagram for the electronic device power supply circuit that one embodiment of the invention is provided；
The structure chart for the electronic device power supply circuit that Fig. 2 one embodiment of the invention is provided；
Fig. 3 is logic switch flow chart between solar energy, kinetic energy and the lithium battery that one embodiment of the invention is provided；
Fig. 4 is the structured flowchart for the electronic device power supply circuit that another embodiment of the invention is provided；
Fig. 5 is the block diagram for the wearable electronic equipment that one embodiment of the invention is provided；
Fig. 6 is the flow chart for the power electronic equipment method that one embodiment of the invention is provided.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
The core concept of the present invention is can be as supplementary energy, to microwatt and milliwatt using solar energy and/or piezoelectric vibration
The energy of level is collected, and will be stored in after the energy conversion of collection in the auxiliary power supply such as farad capacitor, using auxiliary power supply to electronics
Equipment is powered, and reaches the electricity for saving main power source (generally lithium battery), it is to avoid main power source (generally lithium battery) is frequently filled
Electricity, while providing the purpose of larger peak point current for load again.The electricity collected in auxiliary power supply is monitored by electric voltage observation circuit
Pressure, and when voltage reaches programmable threshold, the main control chip of electronic device, main control chip is according to notification signal so as to cut
Power supply circuit is changed, is powered using auxiliary power supply, as long as that is, auxiliary power supply preferentially makes in the case of meeting certain time length power supply capacity
Powered with auxiliary power supply, reduce the use of main power source, the standby of complete machine and continuation of the journey working time are farthest extended with this.Wherein
Auxiliary power supply is also a kind of chargeable device, and its charging times is higher by much compared to lithium battery, preferably capacitor, such as farad
Electric capacity can regard unlimited as compared to the charging times of lithium battery.
Fig. 1 is the schematic diagram for the electronic device power supply circuit that one embodiment of the invention is provided；Referring to Fig. 1, power supply electricity
Road 100 includes：Main power circuit 110, auxiliary power circuit 130, electric voltage observation circuit 140 and control circuit 150；
Auxiliary power circuit 130, for collecting energy and being converted into storing after electric energy；
Electric voltage observation circuit 140, the voltage for monitoring auxiliary power circuit 130, when the voltage of auxiliary power circuit 130 reaches
The first notification signal is sent to control circuit 150 during the first preset value, when the voltage of auxiliary power circuit is less than the second preset value
The second notification signal is sent to control circuit 150；Wherein, the first preset value is more than the second preset value；
Circuit 150 is controlled, for when receiving the first notification signal, by power supply supplemented by the working power switching of electronic equipment
Circuit 130, when receiving the second notification signal, main power circuit 110 is switched to by the working power of electronic equipment.
Wherein, auxiliary power circuit 130 includes：Power conversion circuits and electrical energy storage circuit；Power conversion circuits, for receiving
Collection energy simultaneously is converted into storing in electrical energy storage circuit after electric energy；Electrical energy storage circuit, for storing electric energy；Energy conversion electricity
Road includes：Solar energy change-over circuit and/or kinetic energy change-over circuit.
Wherein, solar energy change-over circuit includes：Thin-film solar cells and MPPT maximum power point tracking MPPT controller；Film
The shape of solar cell is consistent with the appearance and modeling of electronic equipment, and thin-film solar cells is attached to the outer surface of electronic equipment
On.
Wherein, kinetic energy change-over circuit includes：Piezoelectic oscillatory sheet and rectifier circuit.Piezoelectic oscillatory sheet and main power circuit
Battery (generally chargeable lithium cell) in 110 is separately positioned on the two ends of electronic equipment, wherein, in the two ends of electronic equipment
One end provided with piezoelectic oscillatory sheet can flexibly be bent, and one end of the battery provided with main power circuit can shape bending.
Wherein, electrical energy storage circuit includes capacitor.
In the present embodiment, control circuit 150 can be the main control chip of electronic equipment, main control chip receiving voltage electrical measurement
The notification signal that circuit is sent, and it is powered according to the notification signal switching of circuit.
The power supply circuit of electronic equipment in the present embodiment, solar energy and kinetic energy is converted to the auxiliary power supply technology of electric energy,
So that electronic equipment need not be powered using battery always, the electricity of battery is saved.Sunny or fortune is in user
In the case of dynamic state, energy can be collected and stored after changing in capacitor, when the magnitude of voltage in capacitor reaches the
During one preset value (default threshold values of powering), by power supply supplemented by the switching of the working power of electronic equipment (such as farad capacitor
Energy-storage travelling wave tube) so that using accessory power supply to power electronic equipment.In this way, both ensure that the normal work of electronic equipment, carry again
The endurance of electronic equipment is risen.
Fig. 2 is the structure chart for the electronic device power supply circuit that one embodiment of the invention is provided；Referring to Fig. 2, the present invention one
The structure of electronic device power supply circuit in individual embodiment is respectively：
The kinetic energy change-over circuit 210 being made up of piezoelectic oscillatory sheet 2101 and rectifier circuit 2102.The kinetic energy change-over circuit
210 collect kinetic energy when the body part of user's wearable electronic device is kept in motion by piezoelectic oscillatory sheet 2101, and will
The AC signal being collected into is sent to rectifier circuit 2102, the exchange that rectifier circuit 2102 is exported to piezoelectic oscillatory sheet 2101
Subsequent power conversion process is carried out after signal rectification to be output to again in farad capacitor 230.It is appreciated that in the present embodiment to shake
Swing and illustrate how to power using collecting kinetic energy and being converted to electric energy exemplified by energy.It can also adopt in other embodiments of the invention
With the kinetic energy of other forms, the oscillation energy in the present embodiment is not limited to.Electrical energy storage circuit includes capacitor in the present embodiment,
Specifically include farad capacitor.
By thin-film solar cells 2201 and MPPT maximum power point tracking (Maximum Power Point Tracking, letter
Claim MPPT) controller 2202 constitute solar energy change-over circuit 220；MPPT controller can in real time be detectd under different illumination intensity
The peak power output of shoot the sun energy cell panel, and ceiling voltage current value is followed the trail of, make system with maximum power output to electric power storage
Pond (farad capacitor 230 in Fig. 2) is charged, so as to improve the efficiency of collection of energy.Solar energy change-over circuit 220 by film too
Positive energy battery 2201, which collects solar energy and converts solar energy into electric energy, is output to farad capacitor 230.
The main power circuit 110 being made up of adapter 1101, charging management chip 1102 and chargeable lithium cell 1103.Ginseng
See Fig. 2, chargeable lithium cell 1103 is filled by single charging management chip 1102 by power supply adaptor 1101 or USB to it
Electricity.Charging management chip 1102 belongs to CC-CV charging management chips, the charging for adjusting chargeable lithium cell 1103, can
The first stage of the charging process of charged lithium cells 1103 needs the constant current (CC) of medium accuracy to charge, and is transitioned into second stage
High-precision constant pressure (CV) charging.
Referring to Fig. 2, in the present embodiment, control circuit 150 completes farad capacitor by two disconnections switched, closure
Switching between lithium battery power supply.
Fig. 3 is logic switch flow chart between solar energy, kinetic energy and the lithium battery that one embodiment of the invention is provided；Referring to
Fig. 3, the logical process switched between specific solar energy, kinetic energy and lithium battery is as follows：
Step S301, whether be oscillation energy, otherwise if judging the current power supply of electronic equipment, be switched to battery and power,
It is then to perform step S303, farad capacitor is charged.
Step S302, whether be solar energy, otherwise if judging the current power supply of electronic equipment, be switched to battery and power electricity
Road, is then to perform step S303, farad capacitor is charged.
Step S304, judges whether the magnitude of voltage of farad capacitor has reached the first preset value, otherwise, performs step S303,
Continue to charge to farad capacitor, be then to perform step S305, the working power of electronic equipment is switched into farad capacitor.
Step S306, judges whether the magnitude of voltage of farad capacitor is less than the second preset value, otherwise performs step S307, is
Then, step S305 is continued executing with, is powered using farad capacitor.
Referring to Fig. 3, there is no sequencing between step S301 and step S302, you can to first carry out step S301, may be used yet
To first carry out step S302.Because the power supply environment of electronic equipment often changes, this programme according to the change of environment come
Automatic switchover power supply circuit using different energy so as to be powered to greatest extent.For example, original state, electronic equipment uses lithium
Battery (i.e. main power source) is powered.But be under outdoor intense light conditions as user (or bright and clear indoors also may be used
With), when thin-film solar cells power output is sufficiently high, it can quickly finish and farad capacitor is charged.Now, step is performed
S302, judges whether the power supply source of electronic equipment currently is solar energy, is that control circuit is switched to solar power supply circuit,
Powered using farad capacitor (i.e. auxiliary power supply).Electric voltage observation circuit will also monitor the voltage of farad capacitor simultaneously, when solar energy energy
When amount acquisition dies down and causes the decline of farad capacitor voltage, when such as night, cloudy day or electronic equipment are blocked by coat-sleeve, electricity
Sub- equipment detects whether wrist or arm are kept in motion by the acceleration transducer G-Sensor carried, now,
Step S301 is performed, judges whether the power supply source of electronic equipment currently is oscillation energy, is that control circuit is switched to farad electricity
Hold power supply, while electric voltage observation circuit monitors the supply voltage of farad capacitor, when oscillation energy acquisition dies down and cause farad capacitor
Voltage declines, when such as user remains static, and control circuit switches to lithium battery power supply.
Fig. 3 flow chart is to be converted to storage after electric energy based on solar energy to farad capacitor or kinetic energy to turn in the present embodiment
It is changed to and stores what the mode for selecting one to farad capacitor both collection of energy conversion charged to farad capacitor after electric energy, Ke Yili
Solution, in actual applications, when solar energy is sufficient in the power supply environment residing for electronic equipment and user wears (or use) electronics
In the case that equipment is kept in motion, according to collection solar energy and oscillation energy simultaneously and it can be converted to after electric energy to farad electricity
Capacity charge.
It should be noted that the first preset value in the embodiment of the present invention is more than the second preset value.Electric voltage observation circuit is real
When monitor the voltage of farad capacitor, because solar energy change-over circuit or kinetic energy change-over circuit are converted to the energy each collected
Stored after electric energy in farad capacitor, the magnitude of voltage of farad capacitor can be raised.When the magnitude of voltage of farad capacitor reaches that first is pre-
If during value, it is meant that the electric energy that is stored in farad capacitor is very sufficient can to use the electric energy in farad capacitor to set electronics
It is standby to be powered.According to the scheme of this multi source contribution of the present invention, farad capacitor is being used as electronic device works power supply
When, lithium battery can be backstage accumulation energy (electric energy stored in lithium battery is not consumed).
With the consumption to power electronic equipment to electric energy, the magnitude of voltage of farad capacitor can decline.When magnitude of voltage reduction
During to the second preset value, it is meant that the electric energy in farad capacitor remains little, be not suitable for power electronic equipment.Voltage monitoring
Circuit monitoring sends the second notification signal to this change to control circuit, and control circuit receives second notification signal by electricity
The working power circuit of sub- equipment switches to main power circuit, using lithium battery to power electronic equipment.And according to the present invention
Scheme, when using lithium battery to power electronic equipment, solar energy and kinetic energy can continue to accumulate on the backstage of electronic equipment
Energy (is collected energy and is converted to and stored after electric energy in farad capacitor).
Fig. 4 is the structured flowchart for the electronic device power supply circuit that another embodiment of the invention is provided；Referring to Fig. 4, piezoelectricity
Oscillator plate 2101 is collected chip 401 with oscillation energy and is connected, and rectifier circuit 2102 is integrated in oscillation energy and collected in chip 401, shakes
Swing can collect chip 401 by output loading 4011 export electric energy into farad capacitor 230.Thin-film solar cells 2201 and too
Positive energy charging management chip 402 is connected, and MPPT maximum power point tracking MPPT controller 2202 is arranged on solar recharging managing chip
In 402, the output loading 4022 of solar recharging managing chip 402 is connected with the one end of farad capacitor 230.Farad capacitor 230
The other end is grounded.
Wherein, the electric voltage observation circuit 140 shown in Fig. 1 can also be arranged in solar recharging managing chip 402, by
Voltage electrical measurement circuit 140 monitors the voltage of farad capacitor 230, and is sent by Voltage Feedback port 4021 to control circuit 150
Notification signal.When voltage i.e. in farad capacitor 230 reaches the first preset value, send the first notification signal and give control circuit
150, control circuit 150 to receive and switch current power supply after first notification signal for farad capacitor；In farad capacitor
When voltage in 230 drops to the second preset value, send the second notification signal and give control circuit 150, control circuit 150 is received
Switch current power supply circuit after second notification signal for main power circuit.Wherein, the first preset value is pre- more than second
If value.
Referring to Fig. 4, this power supply circuit of the present embodiment, the electric energy in farad capacitor 230 or main power circuit 110 is defeated
PMU (PMU) 403 can also be set to before control circuit 150 by going out, and adjusted and inputted by PMU 403
To the power supply of the system of electronic equipment, to reach higher power supply conversion efficiency and more low-power consumption.
Referring to Fig. 4, control circuit 150 completes the power supply between farad capacitor and lithium battery by two-way load switch 404
Switching, the Enable Pin of load switch 404 is controlled by control circuit 150.When the electric energy in farad capacitor 230 is sufficient, control electricity
Road 150 controls the load switch 404 being connected with farad capacitor 230 to close, and simultaneously switches off the load being connected with main power circuit 110
Switch 404, using farad capacitor 230 as system working power.When the power consumption in farad capacitor 230 is pre- to being less than second
If during value, control circuit 150 disconnects the switch that is connected with farad capacitor 230, be closed at being connected with main power circuit 110 bears
Load switch 404, using main power circuit 110 as electronic equipment working power circuit.Also, it is also by method to control circuit 150
Draw one of electric capacity or lithium battery to power, therefore when farad capacitor and lithium battery can not provide energy, control circuit 150
Load switch 404 can not be opened, in such a case it is possible to by with load switch 404 and be connected use serial bus USB interface
405 enable load switch 404 and power to control circuit 150 and main power circuit 110 is charged.
Wherein, the control circuit 150 in the power supply circuit can be the main control chip of electronic equipment.And can be in control
A diode can be set between the Enable Pin of circuit 150 and switch, to protect load and circuit.
From the foregoing, the power supply circuit of this electronic equipment disclosed in the embodiment of the present invention can realize multi source contribution,
By the use of solar energy and kinetic energy as supplementary energy, energy environment protection, and when can farthest extend the work of electronic equipment
Between, lift endurance.
A kind of electronic equipment is provided according to another aspect of the present invention, and the electronic equipment internal is integrated with the present invention one
The power supply circuit of individual aspect.Fig. 5 is the block diagram for the electronic equipment that one embodiment of the invention is provided, referring to Fig. 5, the present embodiment
This electronic equipment 500 includes foregoing power supply circuit 100.The electronic equipment 500 of the present embodiment, is by aforementioned electronic devices
Power supply circuit 100 be applied on wearable electronic equipment.In hardware design, the shape of thin-film solar cells is designed
Into the shape consistent with the appearance and modeling of wearable electronic equipment, such thin-film solar cells can just be attached to electronics and set
On standby outer surface.The battery in piezoelectic oscillatory sheet and main power circuit is separately positioned on wearable electronic equipment simultaneously
Two ends, wherein, one end of the wearable electronic equipment provided with piezoelectic oscillatory sheet can flexibly be bent, provided with the wearable of battery
One end of formula electronic equipment can shape bending.
Specifically, solar panel selects second generation thin film solar cell sheet, and thin-film solar cells can be flexibly curved
Song, therefore can be integrated with the appearance and modeling of electronic equipment, the outer surface of whole electronic equipment is attached to, so that farthest
Increase the effective area that thin-film solar cells absorbs luminous energy, wherein, electronic equipment (can be that a kind of wearable electronics is set
Standby, such as intelligent spire lamella, Intelligent bracelet, intelligent watch) outer surface refer to what electronic equipment was fitted with user body parts
The opposing face of the side；Piezoelectic oscillatory sheet and lithium battery are located at the two ends of electronic equipment respectively, wherein where piezoelectic oscillatory sheet
One end belt body portion of electronic equipment can have flexible bending, and the opposite side belt body portion where lithium battery is then sizing bending,
The collection of li-ion cell protection and piezoelectric energy is so taken into account.Flexibly bending refers to that piezoelectic oscillatory sheet is agreeing with wearable electronics
On the premise of equipment such as Intelligent bracelet annulus, can also freely it be set according to the posture most beneficial for collection of energy and direction, root
It is adjusted flexibly according to needs.Sizing bending refers to that the part equipped with lithium battery is and bracelet in electronic equipment such as Intelligent bracelet
The same stationary curved of shape, it will not be made troubles to user's wearable electronic device (such as Intelligent bracelet).It is appreciated that this implementation
The shape of this electronic equipment 500 is mainly the wearable of as Intelligent bracelet and intelligent watch etc. ring-type or class ring-type in example
Electronic equipment.In other embodiments of the invention, can according to the true form of wearable intelligent electronic device, with reference to
The power supply circuit of the present invention carries out specific hardware design, is not limited to this hardware design provided in the present embodiment.
The method of supplying power to of a kind of electronic equipment is additionally provided according to a further aspect of the invention, and Fig. 6 is the present invention one
The method flow diagram for the power electronic equipment that embodiment is provided.Referring to Fig. 6, this method includes：
Step 610, collect energy and be converted into storing after electric energy in auxiliary power circuit；
Step 620, the voltage of auxiliary power circuit is monitored；
Step 630, when the voltage of auxiliary power circuit reaches the first preset value, the working power circuit of electronic equipment is cut
It is changed to auxiliary power circuit；
Step 640, when the voltage of auxiliary power circuit is less than the second preset value, the working power circuit of electronic equipment is cut
It is changed to main power circuit；Wherein, the first preset value is more than the second preset value.
Wherein, step 610 collects energy and is converted into storing auxiliary power circuit after electric energy and includes：Turned by solar energy
Change circuit collection solar energy and convert solar energy into after electric energy and store in auxiliary power circuit；And/or, electricity is changed by kinetic energy
Collect kinetic energy (i.e. electronic equipment is shaken the kinetic energy that produces when waiting) and convert kinetic energy into storage after electric energy to arrive auxiliary power supply electric in road
Lu Zhong.
Solar energy change-over circuit includes：Thin-film solar cells and MPPT maximum power point tracking MPPT controller；Kinetic energy is changed
Circuit includes：Piezoelectic oscillatory sheet and rectifier circuit；
Wherein, thin-film solar cells is shaped to the shape consistent with the appearance and modeling of electronic equipment, and will
Thin-film solar cells is attached on the outer surface of electronic equipment, is stored with collecting solar energy and converting solar energy into after electric energy
Into auxiliary power circuit；The battery of piezoelectic oscillatory sheet and main power circuit is separately positioned on to the two ends of electronic equipment, wherein, if
The one end for having piezoelectic oscillatory sheet can flexibly be bent, and one end of the battery provided with main power circuit can shape bending, to collect
Kinetic energy and converting kinetic energy into after electric energy is stored in auxiliary power circuit.
It is appreciated that the implementation process and aforementioned electronic devices power supply circuits of this method of supplying power to that the present embodiment is provided
The course of work is similar, and the detailed process that method of supplying power to is realized is not being repeated herein referring to the explanation of foregoing power supply circuit part.
Technical scheme realizes the multi source contribution of electronic equipment, and can accumulate the faint energy of microwatt level
Amount, so as to extend the continuation of the journey working time of electronic equipment to the full extent.Compared with conventional art scheme, technology of the invention
Scheme has following clear superiority：
1st, electronic equipment (such as intelligent watch) is easier to be blocked by the coat-sleeve of user and causes solar energy to be collected
Become difficult, in this case, according to the solution of the present invention, the working power of electronic equipment can be switched to oscillation energy or lithium
Battery is powered, while can also continue to collect milliwatt even microwatt level too using MPPT controller in the not enough place of illumination
Positive energy energy is simultaneously stored into farad capacitor.Thus the invention provides the power supply circuit of multi source contribution so that electronic equipment
Endurance is greatly promoted.
2nd, collect solar energy and oscillation energy is converted into power storage into the auxiliary power circuit such as farad capacitor, treat farad capacitor
After fully charged (voltage reaches the first preset value), peak when directly can provide standby current or even bluetooth work for electronic equipment
It is worth electric current.
3rd, using the energy storage function of farad capacitor, when the change of electronic apparatus application environment cause solar energy or
When oscillation energy changes or fluctuated, it will not also cause the unexpected power down of electronic equipment, the user of influence uses.
4th, the farad capacitor that the embodiment of the present invention is used is again simultaneously buffer Buffer electric capacity, can meet intelligent radio
Peak point current demand when radio frequency is launched.
5th, with the single working power phase for using chargeable lithium cell or button cell as electronic equipment in the prior art
Compare, frequently discharge and recharge causes the service life reduction of battery.And technical scheme is by the energy stores of collection to farad
In the auxiliary power circuit such as electric capacity, due to the discharge and recharge number of times of farad capacitor may be considered it is unlimited, therefore, present invention, avoiding
The inconvenience that battery is brought to user is often changed, while reducing use cost.
Presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.It is all in this hair
Any modification, equivalent substitution and improvements made within bright spirit and principle etc., are all contained in protection scope of the present invention.
Claims (3)
1. a kind of power supply circuit of wearable electronic, it is characterised in that wearable electronic is intelligent watch or intelligence
Bracelet, power supply circuit includes：Electric voltage observation circuit, control circuit, auxiliary power circuit and the main power circuit including battery；
The auxiliary power circuit, for collecting energy and being converted into storing after electric energy；
The auxiliary power circuit includes：Power conversion circuits and electrical energy storage circuit, the power conversion circuits turn including kinetic energy
Change circuit；
The electrical energy storage circuit includes capacitor；
The electric voltage observation circuit, the voltage for monitoring the auxiliary power circuit, when the voltage of the auxiliary power circuit reaches
The first notification signal is sent to the control circuit during the first preset value, when the voltage of the auxiliary power circuit is preset less than second
During value the second notification signal is sent to the control circuit；Wherein, the first preset value is more than the second preset value；
The control circuit, for when receiving first notification signal, the working power circuit of the electronic equipment to be cut
The auxiliary power circuit is changed to, when receiving second notification signal, the working power circuit of the electronic equipment is switched
For the main power circuit；
The kinetic energy change-over circuit includes：Piezoelectic oscillatory sheet and rectifier circuit, the piezoelectic oscillatory sheet and main power source electricity
Battery in road is separately positioned on the two ends of the electronic equipment, wherein, one end provided with piezoelectic oscillatory sheet can flexibly be bent,
One end provided with main power circuit battery can shape bending；
The power conversion circuits, for collecting energy and being converted into storing in electrical energy storage circuit after electric energy；
The electrical energy storage circuit, for storing electric energy；
The power conversion circuits include：Solar energy change-over circuit；
The solar energy change-over circuit includes：Thin-film solar cells and MPPT maximum power point tracking MPPT controller；
The shape of the thin-film solar cells is consistent with the appearance and modeling of the electronic equipment, the thin-film solar cells patch
It is attached on the outer surface of the electronic device on.
2. a kind of wearable electronic, it is characterised in that the wearable electronic includes confession as claimed in claim 1
Circuit.
3. a kind of method of supplying power to of wearable electronic, it is characterised in that methods described includes：
Collect energy and be converted into storing after electric energy in auxiliary power circuit；
The collection energy is simultaneously converted into storing auxiliary power circuit after electric energy and included：Kinetic energy is collected by kinetic energy change-over circuit
And be converted into the kinetic energy to store after electric energy in auxiliary power circuit；
Monitor the voltage of the auxiliary power circuit；
When the voltage of auxiliary power circuit reaches the first preset value, the working power circuit of the electronic equipment is switched to described
Auxiliary power circuit；When the voltage of auxiliary power circuit is less than the second preset value, the working power circuit of the electronic equipment is cut
It is changed to the battery in main power circuit；Wherein, the first preset value is more than the second preset value, and the kinetic energy change-over circuit includes：Pressure
Electric oscillation piece and rectifier circuit；
The battery of piezoelectic oscillatory sheet and the main power circuit is separately positioned on to the two ends of the electronic equipment, wherein, it is provided with
One end of piezoelectic oscillatory sheet can flexibly be bent, and one end provided with main power circuit battery can shape bending, to collect kinetic energy
And be converted into the kinetic energy to store after electric energy in auxiliary power circuit；The collection energy simultaneously is converted into storing to auxiliary after electric energy
Power circuit includes：
Solar energy is collected by solar energy change-over circuit and is converted into the solar energy to store after electric energy in auxiliary power circuit；
The solar energy change-over circuit includes：Thin-film solar cells and MPPT maximum power point tracking MPPT controller；
Wherein, thin-film solar cells is shaped to the shape consistent with the appearance and modeling of the electronic equipment, and will
Thin-film solar cells is attached on the outer surface of the electronic device, to collect solar energy and the solar energy is converted into electricity
Can after store in auxiliary power circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410221552.5A CN104052108B (en) | 2014-05-23 | 2014-05-23 | Power supply circuit, method of supplying power to and a kind of electronic equipment of electronic equipment |
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| CN104052108B true CN104052108B (en) | 2017-08-04 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104323545A (en) * | 2014-11-04 | 2015-02-04 | 沈阳建筑大学 | Intelligent luminescent bracelet based on flexible thin-film solar cell and NFC module |
| CN104765294A (en) * | 2015-03-20 | 2015-07-08 | 深圳欧陆通电子有限公司 | Power supply system and method, for reducing consumption intelligently, of system |
| CN106655444B (en) * | 2015-10-28 | 2019-05-10 | 华为终端（东莞）有限公司 | A kind of electronic equipment and its charging method |
| CN105244964B (en) * | 2015-10-31 | 2017-12-29 | 华为技术有限公司 | A kind of Intelligent worn device and its method of supplying power to |
| CN105634383A (en) * | 2016-03-14 | 2016-06-01 | 深圳市华星光电技术有限公司 | Wearable equipment power supply system and method and wearable equipment |
| CN107769351B (en) * | 2016-08-17 | 2020-05-22 | 比亚迪股份有限公司 | Power supply circuit of electronic equipment and electronic equipment |
| CN109634348B (en) * | 2018-12-12 | 2023-09-29 | 桂林电子科技大学 | Maximum power synchronous tracking circuit suitable for double-source energy collection system |
| CN109980750B (en) * | 2019-04-29 | 2022-06-21 | 努比亚技术有限公司 | Wearable equipment and charging circuit thereof |
| CN115037024B (en) * | 2022-08-09 | 2022-11-08 | 成都信息工程大学 | High-efficiency milliwatt-level photovoltaic energy collection and energy storage management circuit |
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| CN1578112A (en) * | 2003-07-25 | 2005-02-09 | 罗姆股份有限公司 | Oscillation circuit and electronic equipment including the oscillation circuit |
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| JP2004140987A (en) * | 2002-10-18 | 2004-05-13 | Yasuaki Nomura | Photovoltaic power generating auxiliary power supply |
| CN201502985U (en) * | 2009-07-08 | 2010-06-09 | 金威贸易有限公司 | Lighting device adopting insulated piezoelectric oscillator to drive light-emitting diode |
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| CN1578112A (en) * | 2003-07-25 | 2005-02-09 | 罗姆股份有限公司 | Oscillation circuit and electronic equipment including the oscillation circuit |
| CN201805381U (en) * | 2010-09-30 | 2011-04-20 | 京东方科技集团股份有限公司 | Portable electronic apparatus |
| CN203933093U (en) * | 2014-05-23 | 2014-11-05 | 青岛歌尔声学科技有限公司 | The power supply circuits of electronic equipment and a kind of electronic equipment |
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