CN106936223A - The wireless power supply system being powered to small-power electrical equipment - Google Patents
The wireless power supply system being powered to small-power electrical equipment Download PDFInfo
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- CN106936223A CN106936223A CN201511015049.5A CN201511015049A CN106936223A CN 106936223 A CN106936223 A CN 106936223A CN 201511015049 A CN201511015049 A CN 201511015049A CN 106936223 A CN106936223 A CN 106936223A
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Abstract
Powered field the invention belongs to electrical equipment, more particularly to wireless power supply system that small-power electrical equipment is powered.Wireless power supply system includes emitting portion, receiving portion；The emitting portion includes control unit I, voltage regulation unit I, transmitter unit；Receiving portion includes receiving unit；Voltage regulation unit I provides voltage and is connected to control unit I, transmitter unit with control unit I, and transmitter unit is connected with receiving unit by electromagnetic field；Transmitter unit includes mos pipes, the driving of mos pipes, a LC resonance circuits；Coil L1 and L2 and electric capacity C1 forms a LC resonance circuits；Mos is managed for driving coil L1, L2；Mos pipes drive to control mos pipes to open and disconnect；Control unit I produces wireless signal transmission to receiving portion by mos pipes come driving coil L1, L2.The present invention is advantageously implemented the anury of smart home, Intelligent life, electrical equipment, and the power demands of electrical equipment are met in the electromagnetic field of transmitting coil.
Description
Technical field
Powered field the invention belongs to electrical equipment, more particularly to wireless power supply system that small-power electrical equipment is powered.
Background technology
The power supply mode of current small-power electrical equipment has solar powered, battery to power, rechargeable battery powered, lithium cell charging or connect power supply by power module and be powered, no matter using which kind of power supply mode, the mode for being required for power supply to be contacted with electrical appliance, it is desirable to provide circuit meets the conveying of electric current.The drawbacks of this power supply mode also brings many in the use of power supply, numerous electrical appliance contention power interfaces not only bring Electrical Safety hidden danger, it is necessary to insert row etc. introduces multiple power interfaces, are also unfavorable for realizing smart home.Wireless power is especially applied to present smart home, is a kind of convenient and safe new technology, without any connection physically, electric energy closely can contactlessly be transferred to electrical equipment.
The content of the invention
In view of the shortcomings of the prior art, the wireless power supply system being powered to small-power electrical equipment that the present invention is provided, the anury of electrical equipment can be realized, i.e. without accessing power supply by plug, according to the principle of electromagnetic field inducing, under the cooperation of emitting portion and receiving portion, the power supply to electrical appliance is realized.
In order to solve the above technical problems, the wireless power supply system being powered to small-power electrical equipment of offer of the invention, it is characterized in that：
Including emitting portion, receiving portion；
The emitting portion includes control unit I, voltage regulation unit I, transmitter unit；
The receiving portion includes receiving unit；
Voltage regulation unit I provides operating voltage for control unit I, and transmitter unit is connected with control unit I, and data exchange is carried out by electromagnetic field between transmitter unit and receiving unit；
Transmitter unit includes mos pipes, the driving of mos pipes, a LC resonance circuits, and its coil L1 connects to form a LC resonance circuits with L2 and electric capacity C1；Mos is managed for driving coil L1, L2；Mos pipes drive the unlatching and disconnection for controlling mos pipes；Control unit I produces wireless signal transmission to receiving portion by mos pipes come driving coil L1, L2.
Further, the emitting portion also includes the first detection unit I, the second detection unit I, the 3rd detection unit；
First detection unit I is connected with coil L1, L2 of a LC resonance circuits in transmitter unit, and the loop data that will be obtained is sent to control unit I；
A LC resonance circuits in transmitter unit receive the data of receiving portion transmitting, and the feedback signal that mos pipes are collected is sent to current detecting unit；And data is activation, to current detecting unit, the data of reception are carried out amplifier treatment and are respectively fed to the second detection unit I, the 3rd detection unit, the data is activation that the second detection unit I, the 3rd detection unit will be received respectively to control unit I by current detecting unit.
Further, the emitting portion also includes voltage acquisition unit, temperature detecting unit, current detecting unit；
NTC thermistor in temperature detecting unit is placed on around the coil L1 and L2 of the LC resonance circuits in transmitter unit, and the signal of collection is sent into control unit I；
Voltage acquisition unit connects the coil voltage of a LC resonance circuits, and coil voltage is fed back into control unit I.
Further, receiving unit II includes the 2nd LC resonance circuits, and its coil L3 connects to form the 2nd LC resonance circuits with electric capacity C5 and electric capacity C6, and a LC resonance circuits are identical with the resonant frequency of the 2nd LC resonance circuits.
Further, the receiving portion also includes control unit II, voltage regulation unit II, rectification filtering unit, the first detection unit II；
Receiving unit receives the energy that transmitter unit coil is produced, and is connected to rectification filtering unit, the first detection unit II of rectification filtering unit connection external electric equipment and detection electrical equipment voltage；First detection unit II is additionally operable to after voltage regulation unit II carries out voltage stabilizing be powered for control unit II.
Further, the receiving portion also includes the second detection unit II, data drive unit；
The Voltage Feedback that first detection unit II, the second detection unit II will be detected respectively is to control unit II；
Control unit II sends data to receiving unit by data drive unit, realizes the communication with emitting portion.
Compared with prior art, it is beneficial in that the present invention：Solving must be by way of material contact between power supply and electrical equipment, by electromagnetic field principle, by the electromagnetic induction between the transmitting coil of emitting portion and the receiving coil of receiving portion, produce electric energy, and the electric energy to receiving carries out the treatment of voltage, electric current, data after treatment are fed back into emitting portion again, adjusts transmitting coil to provide voltage, the electric current of suitable electrical equipment.Such power supply and electrical equipment non-contact power supply mode be advantageously implemented smart home, realize Intelligent life, the anury of electrical equipment is realized, as long as can meet the power demands of electrical equipment in the electromagnetic field of transmitting coil.
Brief description of the drawings
Fig. 1 is emitting portion principle schematic of the invention.
Fig. 2 is receiving portion principle schematic of the invention.
Specific embodiment
1-2, provides specific embodiment of the invention referring to the drawings, for the present invention will be further described.
Embodiment 1：
The wireless power supply system of the present embodiment is divided into two large divisions, is respectively emitting portion and receiving portion.
As shown in figure 1, being emitting portion principle schematic of the invention.Emitting portion includes control unit I, voltage regulation unit I, temperature detecting unit, current detecting unit, voltage acquisition unit, transmitter unit, the first detection unit I, the second detection unit I, 3rd detection unit, wherein control unit I coordinates other cell operations as main control section, and control unit I is from the control chip with pin.
U1 in voltage regulation unit I uses TL431 chips, and the E1 and I5 of control unit is attached in unit, there is provided the stable DC operating voltage of 2.5V, it is ensured that control unit I will not burn because of big voltage.
NTC thermistor in temperature detecting unit is placed on around the coil of the L1 in transmitter unit and L2, real-time detection coil temperature, is prevented coil from hindering for some reason and is generated heat serious.The signal of temperature detecting unit collection is connected by F1 with the I6 of control unit I.
Transmitter unit is responsible for the part of radio energy transmitting, and comprising the driving of mos pipes, mos pipes, a LC resonance circuits, wherein mos pipes drive, mos pipes are chip.
Coil L1 constitutes a LC resonance circuit of connecting with L2 and electric capacity C1, and mainly the wireless energy transfer that coil L1, L2 are produced is gone out.U4 and U5 are that enclosed inside has 2 integrated circuits of mos pipes, to driving coil L1, L2.And U2 and U3 are the mos pipe special driving chips that mos pipes drive, for driving the unlatching and shut-off of mos pipes.
I8, I9, I10, I11 connection in H1, H2, H3, H4 and control unit I in transmitter unit.
Control unit I sends break-make instruction, and drive part mos pipes are driven after being driven, and control mos pipe work makes coil that wireless signal transmission be gone out with the frequency of 200khz or so.
1 pin of the chip U4 and U5 of mos pipes feeds back as signal to be used, and feedback signal is entered current detecting unit by D1 by H6.
Current detecting unit has two effects, and first effect is：It is associated with receiving portion when batch production debugging, second effect is that the data that receiving portion is returned are amplified.
For first effect, when batch production debugging is carried out, the voltage that the electric current that receiving portion is collected will be detected with amplifier in current detecting unit herein is associated, depending on concrete numerical value is according to customer demand.For second effect, when receiving portion launches data, L1 and L2 and C1 in the transmitter unit that information passes through emitting portion are received, the D1 in current detecting unit is back to by 1 pin of U4 and U5, after preliminary treatment through amplifier in excessive current detection unit, by D3 into the A1 and the 3rd detection unit of the second detection unit I C2 treatment.I2 and I3 that information after treatment is entered in control unit I by A2 and C1.
B1 in first detection unit I is connected with the H5 in transmitter unit, that is, is directly connected with coil L1, L2, the data that so detection is obtained most directly, it is most accurate.The information of the first detection unit I and the second detection unit I and the 3rd detection unit finally treatment, treatment is analyzed into control unit I by B2, I2, I3, after control unit I computings are finished, then the sinusoidal magnitude by I8, I9, I10, I11 control coil L1, L2 and cycle.
Three detection units are set in the present embodiment again, in order to which the state of more reliable detection receiving portion, the first detection unit I is decoded by the peak value of coil L1, L2, and the signal of the first detection unit ID is most strong, the accuracy rate highest of detection；3rd detection unit and the second detection unit I be by amplifying after electric current decoded, the 3rd detection unit be directly contrast the first detection unit I decoded, the second detection unit I be amplify after contrast again the first detection unit I decoding；Decoding capability is stronger when can be regarded as the 3rd detection unit for bringing onto load, and decoding capability is stronger when the second detection unit I is for zero load；
During three settings of detection unit are in order to be supported on power supply, no matter which kind of state load current is in, and the communication between emitting portion and reception is more stable, reliable.
The effect of voltage acquisition unit is to gather the voltage at coil L1, L2, feeds back to control unit I, it is ensured that coil L1, L2 not superpressure work.
As shown in Fig. 2 being receiving portion principle schematic of the invention.Receiving portion includes receiving unit, rectification filtering unit, the first detection unit II, the second detection unit II, voltage regulation unit II, control unit II, data drive unit, and control unit II is also adopted by control chip herein.
The flow of energy acceptance is as follows：Mos pipes T1 and mos pipes T2 in receiving unit is that closed mode, coil L3 and electric capacity C5 and electric capacity C6 constitute the 2nd LC resonance circuits when flat, and the resonant frequency of the 2nd LC resonance circuits in receiving unit is identical with the resonant frequency of the LC resonance circuits in transmitter unit.The energy of reception is transferred to rectification filtering unit by the a3 and a4 of receiving unit via d1 and d2.Electric current after rectification in rectification filtering unit is exported by d3, and external electric equipment can be just connected in d3, that is, load, and can be the small-power product such as toy, equipment, mobile phone, electrical appliance.
E1 in first detection unit II is connected with the d3 in rectification filtering unit, and used as monitoring point, after electric resistance partial pressure, voltage detection signal is connected d3 by e3 with the c2 in control unit II, herein the mainly voltage magnitude of real-time detection load end.
E2 in first detection unit II is connected with the f1 in voltage regulation unit II, is powered to control unit II by after TL431 voltage stabilizings 3.3V.
The pin of amplifier 1 in second detection unit II obtains vdd voltage value from the partial pressure of R1, R2, R3.By sending into control unit II by C3 from G1 after amplification.
The Main Function of the first detection unit II and the second detection unit II is the load voltage values and control unit II magnitudes of voltage after detection is received.If overtension, chip is put into guard mode.
, it is necessary to be communicated with emitting portion after control chip II receives wireless energy, No. ID itself of control chip II, power needed for load, the feedback of the information such as the real-time current voltage of receiving portion, and emitting portion is adjusted wireless power parameter according to feedback information, it is optimal state.
When control chip II needs to send data, signal can be entered into data drive unit by c1 by b3 in 2 pin.Mos pipes T1, T3 and T2, T4 conducting in data drive unit, circuit is accessed by electric capacity C1 and C8, reaches the purpose for changing resonance point.Receiving portion can reflect corresponding voltage, so as to reach the purpose that data are sent to transmitting portion from receiving portion.
In the present invention, the L3 in coil L1, the L2 and receiving unit in transmitter unit not only plays the role of to transmit radio energy, also with the effect for sending data.Wireless power pattern in the present invention, is different from other all powering modes.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, can in other specific forms realize the present invention.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by appended claims rather than described above, it is intended that all changes fallen in the implication and scope of the equivalency of claim are included in the present invention.
In addition, it should be understood that, although the present specification is described in terms of embodiments, but not each implementation method includes an independent technical scheme, this narrating mode of specification is only for clarity, those skilled in the art should using specification an as entirety, technical scheme in each embodiment can also through appropriately combined, formed it will be appreciated by those skilled in the art that other embodiment.
Claims (6)
1. the wireless power supply system that pair small-power electrical equipment is powered, it is characterised in that：Including emitting portion, receiving portion；
The emitting portion includes control unit I, voltage regulation unit I, transmitter unit；
The receiving portion includes receiving unit；
Voltage regulation unit I provides operating voltage for control unit I, and transmitter unit is connected with control unit I, and data exchange is carried out by electromagnetic field between transmitter unit and receiving unit；
Transmitter unit includes mos pipes, the driving of mos pipes, a LC resonance circuits, and its coil L1 connects to form a LC resonance circuits with L2 and electric capacity C1；Mos is managed for driving coil L1, L2；Mos pipes drive the unlatching and disconnection for controlling mos pipes；Control unit I produces wireless signal transmission to receiving portion by mos pipes come driving coil L1, L2.
2. the wireless power supply system being powered to small-power electrical equipment as claimed in claim 1, it is characterised in that：
The emitting portion also includes the first detection unit I, the second detection unit I, the 3rd detection unit；
First detection unit I is connected with coil L1, L2 of a LC resonance circuits in transmitter unit, and the loop data that will be obtained is sent to control unit I；
A LC resonance circuits in transmitter unit receive the data of receiving portion transmitting, and the feedback signal that mos pipes are collected is sent to current detecting unit；And data is activation, to current detecting unit, the data of reception are carried out amplifier treatment and are respectively fed to the second detection unit I, the 3rd detection unit, the data is activation that the second detection unit I, the 3rd detection unit will be received respectively to control unit I by current detecting unit.
3. the wireless power supply system being powered to small-power electrical equipment as claimed in claim 2, it is characterised in that：
The emitting portion also includes voltage acquisition unit, temperature detecting unit, current detecting unit；
NTC thermistor in temperature detecting unit is placed on around the coil L1 and L2 of the LC resonance circuits in transmitter unit, and the signal of collection is sent into control unit I；
Voltage acquisition unit connects the coil voltage of a LC resonance circuits, and coil voltage is fed back into control unit I.
4. the wireless power supply system being powered to small-power electrical equipment as described in any one of claims 1 to 3, it is characterised in that：
Receiving unit II includes the 2nd LC resonance circuits, and its coil L3 connects to form the 2nd LC resonance circuits with electric capacity C5 and electric capacity C6, and a LC resonance circuits are identical with the resonant frequency of the 2nd LC resonance circuits.
5. the wireless power supply system being powered to small-power electrical equipment as claimed in claim 4, it is characterised in that：
The receiving portion also includes control unit II, voltage regulation unit II, rectification filtering unit, the first detection unit II；
Receiving unit receives the energy that transmitter unit coil is produced, and is connected to rectification filtering unit, the first detection unit II of rectification filtering unit connection external electric equipment and detection electrical equipment voltage；First detection unit II is additionally operable to after voltage regulation unit II carries out voltage stabilizing be powered for control unit II.
6. the wireless power supply system being powered to small-power electrical equipment as claimed in claim 5, it is characterised in that：
The receiving portion also includes the second detection unit II, data drive unit；
The Voltage Feedback that first detection unit II, the second detection unit II will be detected respectively is to control unit II；
Control unit II sends data to receiving unit by data drive unit, realizes the communication with emitting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015049.5A CN106936223A (en) | 2015-12-31 | 2015-12-31 | The wireless power supply system being powered to small-power electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015049.5A CN106936223A (en) | 2015-12-31 | 2015-12-31 | The wireless power supply system being powered to small-power electrical equipment |
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| CN106936223A true CN106936223A (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511015049.5A Pending CN106936223A (en) | 2015-12-31 | 2015-12-31 | The wireless power supply system being powered to small-power electrical equipment |
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| US9130636B2 (en) * | 2013-03-13 | 2015-09-08 | Texas Instruments Incorporated | Low power, low out-of-band harmonic content radio |
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2015
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| JP2009022122A (en) * | 2007-07-13 | 2009-01-29 | Toko Inc | Non-contact power transmission device |
| US20120242311A1 (en) * | 2011-03-25 | 2012-09-27 | Texas Instruments Incorporated | Systems and Methods of Dynamic Current Limit |
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| US9130636B2 (en) * | 2013-03-13 | 2015-09-08 | Texas Instruments Incorporated | Low power, low out-of-band harmonic content radio |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180223 Address after: 518172 Guangdong Shenzhen city Longgang District Longcheng Street Tianan Digital City 4 B seat 603-604 Applicant after: Zhonghui Powerise (Shenzhen) wireless power supply technology Co. Ltd. Address before: Laishan Mingda road 264003 Shandong city of Yantai province No. 11 Applicant before: Middle favour Powerise wireless power Technology Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |
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