A kind of self-powered circuit and the wearable device with the self-powered circuitTechnical field
The present invention relates to electric and electronic technical field, and in particular to a kind of self-powered circuit and with the self-powered circuitWearable device.
Background technology
With Power Electronic Technique continue to develop and its production technology continuous lifting, each class of electronic devices layer goes out notThoroughly, the especially wearable electronic product of intelligence.Contemporary wearable electronic product is usually required volume weight and tends to small-sizedIt is lightening, so that its own battery capacity is extremely limited, cause wearable electronic product to need frequent charge, serious shadowThe experience of consumer is rung.
Therefore, during the charging circuit of wearable electronic product is designed in inventor, find in the prior art extremelyThere is problems with less：
Existing wearable electronic product class product its cells finite capacity so that charging times are frequent so that userExperience is poor.
The content of the invention
The invention provides a kind of self-powered circuit and the wearable device with the self-powered circuit, to solve existing skillWearable electronic product class product its cells finite capacity in art so that charging times are frequent so that Consumer's Experience compared withDifference problem.
According to an aspect of the invention, there is provided a kind of self-powered circuit, the circuit includes：Self-powered branch road, rectificationBranch road, charging energy-storing branch road and master control branch road；
The self-powered branch road, for converting kinetic energy into electric energy, and is transferred to the rectification branch road by the electric energy；
The rectification branch road, for the electric energy that the self-powered branch road is produced to be carried out into rectification treatment, obtains a stabilizationThe direct current of value, and according to the instruction of the master control branch road, by the DC power transmission is to the master control branch road or described fillsElectric energy storage branch road；
The charging energy-storing branch road, for storing the direct current that the rectification branch road is transmitted, and is chargedProtection；
The master control branch road, for controlling the galvanic voltage stabilizing treatment of the rectification branch road and outbound course.
According to a further aspect of the invention, there is provided a kind of wearable device, the wearable device includes：As described aboveSelf-powered circuit.
The beneficial effects of the invention are as follows：Electric energy is converted kinetic energy into by self-powered branch road, and the electric energy is transferred toThe rectification branch road, the AC conversion for being produced the self-powered branch road by the rectification branch road is direct current, and will be describedThen direct current stabilization indicates in a stationary value according to master control branch road, by direct current storage to the charging energy-storing branchRoad is direct for master control branch road is powered.The self-powered branch road that the present invention is converted into electric energy by kinetic energy realizes recharging,So as in the case where battery capacity is not increased, charge frequency can be reduced with the cruising time of extension device, user's body is improvedTest.
Brief description of the drawings
Fig. 1 is a kind of self-powered circuit structural representation of one embodiment of the invention；
Fig. 2 be one embodiment of the invention a kind of self-powered circuit in self-powered branch structure schematic diagram；
Fig. 3 be one embodiment of the invention a kind of self-powered circuit in rectification branch road rectifying and wave-filtering shunt circuit figure；
Fig. 4 be one embodiment of the invention a kind of self-powered circuit in rectification branch road voltage stabilizing branch figure；
Fig. 5 be one embodiment of the invention a kind of self-powered circuit in rectification branch road output control branch figure；
Fig. 6 is a kind of structured flowchart of wearable device of one embodiment of the invention.
Specific embodiment
In the prior art wearable electronic product due to the lightening design requirement of volume weight of standing up so thatIts cells capacity is extremely limited so that charging times are frequent so that Consumer's Experience is poor.
Design concept of the invention is：It is extremely limited for existing wearable electronic product its cells capacity, makeObtain charging times frequent so that the poor problem of Consumer's Experience, devise a kind of self-powered circuit.In the self-powered circuitSelf-powered branch road converts kinetic energy into electric energy, and the electric energy is transferred into the rectification branch road, by the rectification branch road by instituteThe AC conversion for stating the generation of self-powered branch road is direct current, and the direct current is a stationary value, then according to master control branch roadIndicate, by direct current storage to the charging energy-storing branch road or directly for master control branch road is powered.As a result of kinetic energyThe self-powered branch road for being converted into electric energy realizes recharging, so as in the case where battery capacity is not increased, extend and setIn standby cruising time, charge frequency is reduced, improve Consumer's Experience.
Embodiment one
Fig. 1 is a kind of self-powered circuit structural representation of one embodiment of the invention, and referring to Fig. 1, the circuit includes：FromPower supply branch road 101, rectification branch road 102, charging energy-storing branch road 103 and master control branch road 104；
The self-powered branch road 101, for converting kinetic energy into electric energy, and is transferred to the rectification branch by the electric energyRoad；
The rectification branch road 102, for the electric energy that the self-powered branch road is produced to be carried out into rectification treatment, obtains one surelyThe direct current of definite value, and according to the instruction of the master control branch road, the master control branch road or described is given by the DC power transmissionCharging energy-storing branch road；The branch road is specifically included：Rectifying and wave-filtering branch, voltage stabilizing branch and output control branch；The rectifying and wave-filteringBranch, is direct current for the AC conversion that produces the self-powered branch road, filters alternating component, and by the direct currentExport the voltage stabilizing branch；The voltage stabilizing branch, for the direct current to be carried out into voltage stabilizing treatment, and by the direct current rootCause that the direct current, for a stationary value, is transferred to the output control branch according to the instruction of the master control branch road；It is described defeatedGo out to control branch, for the instruction according to the master control branch road, the master control branch road or described is given by the DC power transmissionCharging energy-storing branch road.
The charging energy-storing branch road 103, for storing the direct current that the rectification branch road is transmitted, and is filledElectric protection；The branch road is specifically included：Energy storage branch and charge protection branch；The energy storage branch, for storing the rectification branchThe direct current that road transmits；The charge protection branch, for protecting the energy storage branch.
The master control branch road 104, for controlling the galvanic voltage stabilizing treatment of the rectification branch road and outbound course.
Embodiment two
Based on above example, as shown in Fig. 2 being self-powered branch structure in self-powered circuit in technical solution of the present inventionSchematic diagram；The self-powered branch road includes：Two magnet 1, mover 2, two guide rails 3, groups of springs 4, outer rim 6 and wires 5；
Two blocks of magnet 1 is oppositely arranged, and forms vertical direction magnetic field；
Described two guide rails 3 are oppositely arranged in the horizontal direction, and the two ends of the mover 2 are slided with described two guide rails 3 respectivelyConnection；The guide rail has good electric conductivity and relatively low frictional force.
The mover 2 is slided in the horizontal direction along the direction of described two guide rails 3, cuts what two blocks of magnet 1 was formedThe magnetic induction line in the magnetic field of vertical direction；The mover 2 is composed in parallel by least two enamel-covered wires.The mover 2 can be on guide railSlide, according to Faraday's electromagnetic induction law, mover 2 moves generation electric current along guide rail cutting magnetic induction line direction, producedElectric current enters rectification branch road along guide rail by the wire 6.
The outer rim 6 is used to connect described two guide rails 3, and square-shaped frame is formed with described two guide rails 3.
The groups of springs 4 is separately positioned on two outer rims 6 inner side vertical with guide rail 4；The spring plays bufferingEffect, reduces energy loss.
The wire 5 is connected with described two guide rails 4.
It should be noted that the alternative solution of the self-powered branch road can be：Using moving object collision piezoelectricWeak current is produced, realizes that kinetic energy is converted into electric energy.
Embodiment three
As shown in figure 3, being a kind of rectifying and wave-filtering branch electricity of the rectification branch road of self-powered circuit in technical solution of the present inventionLu Tu；The circuit includes：First transformer U1, first switch pipe Q1, second switch pipe Q2, the first electric capacity C1, the first inductance L1With the second electric capacity C2；
The first transformer U1 inputs 1 of the same name and input 2 connect the i.e. described wire of self-powered branch road output end5；
The first transformer U1 output ends 3 of the same name connect the first switch pipe Q1 drain electrodes and grid connection end；
The first transformer U1 output ends 4 connect the second switch pipe Q2 drain electrodes and grid connection end；
The first transformer U1 output ends 5 are grounded；
The first switch pipe Q1 source electrodes meet the second switch pipe Q2, the first inductance L1 with the first electric capacity C1Connection end；Another termination the second electric capacity C2 of first inductance L1 are input into connection end with the voltage stabilizing branch；Described secondThe electric capacity C2 other ends are grounded；The first electric capacity C1 other ends ground connection.
Example IV
As shown in figure 4, being a kind of voltage stabilizing shunt circuit figure of the rectification branch road of self-powered circuit in technical solution of the present invention；The circuit includes：DC boosting chip U2, the second inductance L2, the 3rd electric capacity C3, the 4th electric capacity C4, first resistor R1, the 5th electricityHold C5 and the 6th electric capacity C6；
The DC boosting chip U2 pins 1 meet supply voltage+4.3V with the 5th electric capacity C5 connection ends；Described 5thThe electric capacity C5 other ends are grounded；The DC boosting chip U2 pins 2 meet the second inductance L2 and are connected with the first resistor R1End；Another termination the 4th electric capacity C4 of first resistor R1 and the connection end of DC boosting chip U2 pins 3；DescribedThe four electric capacity C4 other ends are grounded；Second inductance L2 another termination the 3rd electric capacity C3 and output connection end VOUT；It is describedThe 3rd electric capacity C3 other ends are grounded；The DC boosting chip U2 pins 4 meet the control pin MCU_MODE of the master control branch road；The DC boosting chip U2 pins 5 connect described 6th electric capacity C6 one end；The 6th electric capacity C6 other ends ground connection；The direct currentBoost chip U2 pins 6 are grounded.
Embodiment five
As shown in figure 5, being a kind of output control branch electricity of the rectification branch road of self-powered circuit in technical solution of the present inventionLu Tu；The circuit includes：Single-pole double-throw switch (SPDT) chip U3 and second resistance R2；
The single-pole double-throw switch (SPDT) chip U3 control signals 6 connect the control of the second resistance R2 and the master control branch roadSignal pins MCU_CTRL connection ends；The second resistance R2 other ends ground connection；The single-pole double-throw switch (SPDT) chip U3 output ends 1Connect the charging energy-storing branch road；The single-pole double-throw switch (SPDT) chip U3 output ends 2 meet the energization pins MAIN_ of the master control branch roadPCB。
Each shunt circuit figure based on rectification branch road shown in figure 3 above to Fig. 5, below by way of its specific operation principleThe rectification branch road is described in detail.
The low tension Ui boostings that the first transformer U1 will be input into；The first switch pipe Q1, second switch pipe Q2 groupsInto full bridge rectifier.When the electric current that the self-powered branch road is produced is flowed out by the pin of the first transformer 3, described first opensPipe Q1 conductings are closed, the second switch pipe Q2 disconnects；When the electric current that the self-powered branch road is produced passes through first transformer 4Pin flows out, and the first switch pipe Q1 disconnects, the second switch pipe Q2 conductings, first switch pipe Q1 described herein and described theTwo switching tube Q2 reduce the pressure that switching device brings using diode in NMOS tube replacement in the prior art full bridge rectifierDrop, improves conversion efficiency；The first inductance L1, the first electric capacity C1 and the second electric capacity C2 composition pi filters, filter and exchange intoPoint, output voltage Vout.The voltage stabilizing branch (i.e. Fig. 4) is by DC-DC boost chips U2 and peripheral electric capacity C3, C4, C5, C6, electricitySense L2, resistance R1 compositions, output stabilization 4.3V voltages.The output control branch (i.e. Fig. 5) is connected with the master control branch road, controlSignal MCU_CTRL controls single-pole double-throw switch (SPDT) U3 processed makes current direction battery or the master control branch road.
Embodiment six
As shown in fig. 6, a kind of structured flowchart of the wearable device for one embodiment of the invention, the wearable device 60Including：Self-powered circuit 601 as described above.
The beneficial effects of the invention are as follows：Electric energy is converted kinetic energy into by self-powered branch road, and the electric energy is transferred toThe rectification branch road, the AC conversion for being produced the self-powered branch road by the rectification branch road is direct current, the direct currentElectricity is a stationary value, is then indicated according to master control branch road, by direct current storage to the charging energy-storing branch road or straightMaster control branch road is connected in power.The self-powered branch road that the present invention is converted into electric energy by kinetic energy realizes recharging, so as to notIn the case of increasing battery capacity, charge frequency can be reduced with the cruising time of extension device, improve Consumer's Experience.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the scope of the present invention.It is allAny modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present inventionIt is interior.