CN207994738U - High power intelligent pressure-adjustable charging system based on resonance type wireless electric energy transmission technology - Google Patents
High power intelligent pressure-adjustable charging system based on resonance type wireless electric energy transmission technology Download PDFInfo
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- CN207994738U CN207994738U CN201820214375.1U CN201820214375U CN207994738U CN 207994738 U CN207994738 U CN 207994738U CN 201820214375 U CN201820214375 U CN 201820214375U CN 207994738 U CN207994738 U CN 207994738U
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Abstract
The utility model provides a kind of high power intelligent pressure-adjustable charging system based on resonance type wireless electric energy transmission technology, including 220V AC powers, single-phase full bridge rectification circuit, radiating circuit main circuit, pwm driver, transmitting coil, receiving coil, receiving circuit main circuit, current rectifying and wave filtering circuit and load circuit；The 220V AC powers, single-phase full bridge rectification circuit, radiating circuit main circuit and transmitting coil are connected in parallel, the pwm driver accesses radiating circuit main circuit, the receiving coil, receiving circuit main circuit, current rectifying and wave filtering circuit and load circuit are connected in parallel, and the transmitting coil forms electromagnetic coupling mechanisms with receiving coil；The utility model has many advantages, such as to reduce switch and load loss, and can realize the high-power wireless charging of distinct device.
Description
Technical field
It is the utility model is related to resonance type wireless charging research field, more particularly to a kind of to be passed based on resonance type wireless electric energy
The high power intelligent pressure-adjustable charging system of transferring technology.
Background technology
So-called wireless charging technology is commonly referred to as the Radio Transmission Technology of electric energy, and popular says, is exactly not by material object
Line realizes the wireless reception and registration of electric energy.Early in 1900, Te Lasi began to radio energy for research about wireless charging technology
The experiment of transmission, by development in more than 100 years, the method about wireless charging was varied, but basic principle can be divided into
Lower three kinds：Induction, radio waves type, resonance manifold type are realized by the resonance effects of two coils in non-radiative magnetic field
The wireless power of middle distance.
The advantages that non-radiation type of resonance type wireless charging technique, high efficiency, which is other wireless charging technologies, to be compared
's.So-called resonant mode is exactly to form resonance circuit using the inductance and capacitance in parallel of transmitting coil, is also formed together in receiving terminal
The reception circuit of sample resonance, forms strong magnetic coupling to realize efficient wireless power transmission using resonance.The appearance of the technology
Cause the huge interest of domestic and international academia and industrial quarters, it is considered to be a kind of radio energy most with prospects at present passes
Transferring technology scheme.
With the development and perfection of wireless charging technical solution, it is applied on portable device and other power supply units
Technical solution is varied, and is gradually improved.But theorize currently based on the research of resonance type wireless charging technique deviation,
Lack to have practical application and quantitatively know the same achievement in research, while existing technical transmission power is often smaller, far from
Can complete high-power energy transmission, it is higher there is also energy loss the defects of.Therefore, powerful equipment is carried out wireless
The equipment of charging yet there are no ripe product in the market both domestic and external now.So the high-power pressure-adjustable of the utility model
Resonance type wireless electric energy transmission system wireless power transmission field have great research and development foreground, in intelligent family
The wireless powers such as residence, medical treatment field has important practical value.
Utility model content
That the main purpose of the utility model is to overcome existing wireless charging technology power is small, loss is big, receiving device
The drawbacks such as single provide a kind of high power intelligent pressure-adjustable charging system based on resonance type wireless electric energy transmission technology, realize
The high-power wireless of distinct device charges.
In order to achieve the above object, the utility model adopts the following technical scheme that：
A kind of high power intelligent pressure-adjustable charging system based on resonance type wireless electric energy transmission technology of the utility model,
Single-phase full bridge rectification circuit, original grade coil resonance circuit including 220V AC powers, for carrying out rectification to AC power, use
In the pwm driver of control driving original grade coil resonance circuit, secondary resonance circuit, for being carried out to alternating voltage electric current
The current rectifying and wave filtering circuit and load circuit of rectification；The original grade coil resonance circuit includes for DC voltage and current is inverse
Become the radiating circuit main circuit of alternating voltage electric current and the transmitting coil for alternating electric field being converted to alternating magnetic field；It is described
Secondary resonance circuit include for induced field and be converted to electric field receiving coil and for receiving coil resonance
Receiving circuit main circuit；The transmitting coil is connect by the magnetic-coupled mode of resonant mode with receiving coil, the transmitting coil
Electromagnetic coupling mechanisms are formed with receiving coil.
The single-phase full bridge rectification circuit includes as a preferred technical solution,：Triode VT1, triode VT2, two poles
Pipe VD3, diode VD4 and transformer；The emitter of the triode VT1 is connected with the collector of triode VT2, described
The collector of triode VT1 is connect with the cathode of diode VD3, and the anode of the diode VD3 connects with the cathode of diode VD4
It connects, the anode of the diode VD4 is connect with the emitter of triode VT2；The output end of the transformer wherein connects all the way
It is connected between the emitter of triode VT1 and the collector of triode VT2, another way is connected to the anode and two of diode VD3
Between the cathode of pole pipe VD4.
The pwm driver is made of arm processor and power module of voltage regulation as a preferred technical solution, the ARM
Processor and power module of voltage regulation access pwm driver output end.
The model STM32 series processors of the arm processor as a preferred technical solution, pin output end
Mouth uses open-drain output pattern, and output signal is provided for pwm driver.
The power module of voltage regulation includes 15V power supplys and pull-up resistor, the 15V power supplys as a preferred technical solution,
It is connected in series with pull-up resistor, the pull-up resistor is not less than 1.5k Ω.
The radiating circuit main circuit includes as a preferred technical solution,：Triode VT1, diode VD2, capacitance C1,
Capacitance C2, inductance L1 and power supply U1, the triode VT1, diode VD2, capacitance C1 and capacitance C2 are connected in parallel,
Two termination power U1 of parallel circuit；Mono- termination capacitor C1 of the inductance L1 and power supply U1, the transmitting of another termination triode VT1
Pole.
The receiving circuit main circuit includes as a preferred technical solution,：Capacitance C3, inductance L2 and power supply U2；Institute
Power supply U2 is stated as capacitance C3, inductance L2 power supplies, the inductance L2 and capacitance C3 are connected in series with.
The current rectifying and wave filtering circuit is Schottky diode bridge rectifier filter circuit as a preferred technical solution, is used
In the pulsating dc voltage that sinusoidal voltage is transformed into single direction, then filtered effect is by the mains ripple journey of the electric current
Degree further decreases, and resupplies load circuit.
The utility model has the following advantages compared with the existing technology and effect：
1. the utility model design realizes powerful wireless charging using IGBT high-power electronic devices, and compares other
Inverter circuit, only used a switching device, reduced switching loss.
2. the utility model design uses single-phase bridge IGBT half-controlled rectifier circuits, by the conducting and the pass that adjust IGBT
It is disconnected, trigger delay angle is controlled, the adjustable of charging voltage is realized, the wireless power transmission reception to adapt to different voltages is set
It is standby.
3. the utility model design is in order to reduce the mains ripple degree of harmonic component in DC current after rectification, using big
The capacitor of capacity makes pulsating volage become the DC voltage of ripple very little, avoids larger arteries and veins unstable in DC voltage
Dynamic damage of the ingredient to load.
Description of the drawings
Fig. 1 is the system structure diagram of the utility model；
Fig. 2 is the circuit diagram of the single-phase full bridge rectification circuit of the utility model；
Fig. 3 is the schematic diagram of the radiating circuit main circuit of the utility model；
Fig. 4 is the schematic diagram of the receiving circuit main circuit of the utility model；
Fig. 5 is the pwm driver structural schematic diagram of the utility model；
Fig. 6 is that the level of the pwm driver of the utility model exports schematic diagram.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, the utility model is based on a kind of resonance type wireless electric energy transmission technology, exchanged including 220V
Power supply, for AC power carry out rectification single-phase full bridge rectification circuit, for DC voltage and current to be reverse into alternating current
The radiating circuit main circuit of current voltage drives the pwm driver of main circuit, for alternating electric field to be converted to alternation for controlling
The transmitting coil in magnetic field, for induced field and be converted to electric field receiving coil, for receiving coil resonance reception electricity
Road main circuit, the current rectifying and wave filtering circuit for carrying out rectification to alternating voltage electric current, wherein transmitting coil are formed with receiving coil
Electromagnetic coupling mechanisms.
As shown in Fig. 2, the single-phase full bridge rectification circuit is whole by the single-phase full bridge formula that IGBT and Power Diode Pumped form
Current circuit, in Fig. 2, there are one IGBT and diodes in each galvanic circle, control the conducting of IGBT to control conduction
Circuit.Two bridge arms are connected by turns so that the positive-negative half-cycle of AC power has rectified output current to flow through load.And become
In depressor secondary winding, positive and negative two half period current directions are opposite and waveform symmetry, average value zero, i.e. DC component are
Zero, there is no transformer dcs to magnetize problem, and the utilization rate of transformer winding is higher.
Fig. 3 show the basic circuit topology of radiating circuit main circuit and transmitting coil, is made of IGBT and former polar curve circle
Original grade coil resonance circuit.In Fig. 3, U1 is the DC voltage through single-phase full bridge rectifier circuit rectifies, because the capacitance of C1 is sufficiently large,
It is a steady state value thus to make the electric current flowed through.L1, C2 are resonant element, and L1, C1 should meet conditionWherein,
C2 is both resonant capacitance and additional capacitance.Purpose is the sinewave output of high frequency to be generated on L1, while making switching tube VT1
It is operated in perfect condition.Lower surface analysis circuit operation principle.
When VT1 is disconnected, resonance occurs for the series resonant tank that L1, C2 form a closure, charges to resonant tank, mends
Resonance circuit energy is filled, forms a sine wave on L1.Because the both ends of VT1 it is in parallel an additional capacitance C2, the electricity on C2
Pressure is slowly risen by zero, and to make VT1 during pipeline section current tail, the voltage rising amplitude at both ends is limited, to drop significantly
Low turn-off power loss.
When VT1 is connected, L1 and C2 form a shunt-resonant circuit being closed.Electric current on L1, C2 all flows through
At this moment, on L1 VT1 just obtains a sinusoidal output since L2, C2 have stored energy before opening.Pass through VT1 at this time
Electric current be then the sum of electric current in electric current and C2 in L1.When VT2 is connected, similarly, details are not described herein for principle.
In the circuit, there are a degree of resistance senses to load for inevitable exchange side, needs the resistance sense to exchange side negative at this time
It carries and reactive power is provided, capacitance C2 plays a part of to buffer quadergy simultaneously.In order to the idle of the lateral DC side feedback of exchange
Energy provides channel, switching tube VT1 feedback diode VD2 in parallel.
As seen from the above analysis, this simple coil resonant circuit greatly reduces the turn-off power loss of switching tube, and circuit
It is simple in structure, while having the characteristics that serial-resonant and parallel resonance formula topology, a switching tube is used only, it is easier to obtain on ground
Obtain the sinewave output of upper frequency.
Fig. 4 show the basic circuit topology of receiving circuit main circuit and secondary coil, by secondary coil and resonant capacitance
Form secondary resonance circuit.L2, C3 are resonant element, and resonance occurs for the series resonant tank for forming a closure.L2、C3
Condition should be met
As shown in figure 5, such as the pwm driver structural schematic diagram that figure is the utility model.The pin of wherein arm processor is defeated
Exit port uses open-drain output pattern.The switch of the internal equivalent connection power ground of its ARM processing, as shown in fig. 6, in PWM
First half cycle export low level, equivalent switch K is closed, and PWM drive outputs mouth is dragged down by the clamping action of power ground；
The later half period of PWM exports high level, and equivalent switch K is disconnected, and PWM drive outputs mouth connects 15V electricity by pull-up resistor
Source exports a high level.Since the IGBT in radiating circuit main circuit is voltage driven type device, so the switch of IGBT is several
It is not influenced by pull-up resistor current limliting, on the contrary, pull-up resistor plays protective effect to arm processor.What arm processor absorbed
10mA is not to be exceeded in electric current, is obtained by Ferrari lawTherefore pull-up resistor resistance value is not answered small
In 1.5k Ω.
It is led using similar flow scheme design, the astragalus prosthese of manufacture, astragalus bone-culting operation in the utility model production method
Plate belongs to the range of the utility model protection.Therefore, the utility model is not limited to specific embodiment disclosed herein, and includes
All embodiments for dropping into claims.
Claims (8)
1. a kind of high power intelligent pressure-adjustable charging system based on resonance type wireless electric energy transmission technology, which is characterized in that packet
It includes 220V AC powers, the single-phase full bridge rectification circuit for carrying out rectification to AC power, original grade coil resonance circuit, be used for
Control the pwm driver for driving original grade coil resonance circuit, secondary resonance circuit, for whole to the progress of alternating voltage electric current
The current rectifying and wave filtering circuit and load circuit of stream；The original grade coil resonance circuit includes for DC voltage and current inversion
At the radiating circuit main circuit of alternating current current voltage and the transmitting coil for alternating electric field being converted to alternating magnetic field；Described time
Grade coil resonant circuit includes for induced field and being converted to the receiving coil of electric field and for being connect with receiving coil resonance
Receive circuit main circuit；The transmitting coil is connect by the magnetic-coupled mode of resonant mode with receiving coil, the transmitting coil with
Receiving coil forms electromagnetic coupling mechanisms.
2. the high power intelligent pressure-adjustable Charging according to claim 1 based on resonance type wireless electric energy transmission technology
System, which is characterized in that the single-phase full bridge rectification circuit includes：Triode VT1, triode VT2, diode VD3, diode
VD4 and transformer；The emitter of the triode VT1 is connected with the collector of triode VT2, the collection of the triode VT1
Electrode is connect with the cathode of diode VD3, and the anode of the diode VD3 is connect with the cathode of diode VD4, the diode
The anode of VD4 is connect with the emitter of triode VT2；The output end of the transformer is wherein connected to triode VT1 all the way
Emitter and the collector of triode VT2 between, another way is connected to the cathode of the anode and diode VD4 of diode VD3
Between.
3. the high power intelligent pressure-adjustable Charging according to claim 1 based on resonance type wireless electric energy transmission technology
System, which is characterized in that the pwm driver is made of arm processor and power module of voltage regulation, the arm processor and voltage stabilizing
Power module accesses pwm driver output end.
4. the high power intelligent pressure-adjustable Charging according to claim 3 based on resonance type wireless electric energy transmission technology
System, which is characterized in that the model STM32 series processors of the arm processor, pin output port use open-drain output
Pattern provides output signal for pwm driver.
5. the high power intelligent pressure-adjustable Charging according to claim 3 based on resonance type wireless electric energy transmission technology
System, which is characterized in that the power module of voltage regulation includes 15V power supplys and pull-up resistor, and the 15V power supplys are connected with pull-up resistor
Connection, the pull-up resistor are not less than 1.5k Ω.
6. the high power intelligent pressure-adjustable Charging according to claim 1 based on resonance type wireless electric energy transmission technology
System, which is characterized in that the radiating circuit main circuit includes：Triode VT1, diode VD2, capacitance C1, capacitance C2, inductance
L1 and power supply U1, the triode VT1, diode VD2, capacitance C1 and capacitance C2 are connected in parallel, parallel circuit both ends
Meet power supply U1；Mono- termination capacitor C1 of the inductance L1 and power supply U1, the emitter of another termination triode VT1.
7. the high power intelligent pressure-adjustable Charging according to claim 1 based on resonance type wireless electric energy transmission technology
System, which is characterized in that the receiving circuit main circuit includes：Capacitance C3, inductance L2 and power supply U2；The power supply U2 is electricity
Hold C3, inductance L2 power supplies, the inductance L2 and capacitance C3 are connected in series with.
8. the high power intelligent pressure-adjustable Charging according to claim 1 based on resonance type wireless electric energy transmission technology
System, which is characterized in that the current rectifying and wave filtering circuit is Schottky diode bridge rectifier filter circuit, is used for sinusoidal ac
Buckling changes the pulsating dc voltage of single direction into, then filtered effect further decreases the mains ripple degree of the electric current,
Resupply load circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820214375.1U CN207994738U (en) | 2018-02-07 | 2018-02-07 | High power intelligent pressure-adjustable charging system based on resonance type wireless electric energy transmission technology |
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| CN201820214375.1U CN207994738U (en) | 2018-02-07 | 2018-02-07 | High power intelligent pressure-adjustable charging system based on resonance type wireless electric energy transmission technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546715A (en) * | 2018-12-29 | 2019-03-29 | 河南壹元科技有限公司 | One kind passing energy charger for mobile phone based on magnet coupled resonant type wireless |
| CN111934444A (en) * | 2020-08-12 | 2020-11-13 | 安洁无线科技（苏州）有限公司 | Wireless charging protection system and method |
| CN117040144A (en) * | 2023-09-12 | 2023-11-10 | 重庆大学 | Frequency tuning and power flow decoupling control method and system of BCPT system |
-
2018
- 2018-02-07 CN CN201820214375.1U patent/CN207994738U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546715A (en) * | 2018-12-29 | 2019-03-29 | 河南壹元科技有限公司 | One kind passing energy charger for mobile phone based on magnet coupled resonant type wireless |
| CN111934444A (en) * | 2020-08-12 | 2020-11-13 | 安洁无线科技（苏州）有限公司 | Wireless charging protection system and method |
| CN117040144A (en) * | 2023-09-12 | 2023-11-10 | 重庆大学 | Frequency tuning and power flow decoupling control method and system of BCPT system |
| CN117040144B (en) * | 2023-09-12 | 2024-05-14 | 重庆大学 | Control method and system for frequency tuning and power flow decoupling of BCPT system |
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