CN209448509U - Use the automatic Regulation resonance type wireless power transfer of Buck converter - Google Patents
Use the automatic Regulation resonance type wireless power transfer of Buck converter Download PDFInfo
- Publication number
- CN209448509U CN209448509U CN201821457180.6U CN201821457180U CN209448509U CN 209448509 U CN209448509 U CN 209448509U CN 201821457180 U CN201821457180 U CN 201821457180U CN 209448509 U CN209448509 U CN 209448509U
- Authority
- CN
- China
- Prior art keywords
- power
- supply
- wireless
- rectifier bridge
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model relates to a kind of automatic Regulation resonance type wireless power transfers using Buck converter, including primary and secondary side, primary side includes the transmitting coil that power current source, inverter circuit and series connection are connected to static resonance capacitor, secondary side includes the receiving coil that series connection is connected to static resonance capacitor, receiving coil L2Access AC-DC rectifier bridge, the DC voltage of AC-DC rectifier bridge obtains to drive the constant pressure source of load after passing through Buck converter, power power-supply is digital adjustable power power-supply, in primary controller addition controller and wireless output receiving module, it is added with measurement module on secondary side, AC-DC rectifier bridge output voltage divides input measurement module by high resistance measurement；Demodulated signal controls digital adjustable power power-supply to controller based on the received.In view of the above-mentioned problems, the utility model can provide stable constant pressure source to required load.
Description
Technical field
The utility model belongs to wireless power transmission field, particularly with regard to one kind to using Buck converter resonant mode
Wireless electric energy transmission device.
Background technique
The transmission of resonance type wireless electric energy is that a kind of that electric energy is transferred to required equipment every sky by non-physical connections mode is complete
At the technology of power supply, by feat of transmission range relatively far away from, the advantages that non-radiative technology and penetrability are good, in wireless charging
Electricity, medical electronics and rotary part power supply etc. have obtained extensive research and have gradually applied.Since most of loads need
It works under constant pressure source, and increases system effectiveness to reduce power loss, require to use Buck before the access load of secondary side
Converter carries out switch voltage-stabilizing.On the one hand, converter is worked normally, then output voltage and output is required to have certain pressure
Otherwise difference can make output lower than preset value or triggering under-voltage protection.On the other hand, since system total power is with supply voltage
Increase and increase, it is extremely inefficient that excessive supply voltage will lead to system effectiveness.In practical work process, since environment is asked
Topic, such as external shock cause the coefficient of coup to change, and also or load changes, and all can cause shadow to rectifier bridge output voltage
It rings, so that system can not work normally or inefficiency.Therefore, it is necessary to adjust supply voltage according to system working condition
To adapt to the variation of environment and load.
Utility model content
In view of the above-mentioned problems, being passed the purpose of the utility model is to overcome the deficiencies in the prior art in classical radio energy
The feedback system of wireless data transmission is added in defeated device, feedback is measured to Buck converter both end voltage, adjusts power supply
Voltage provides stable constant pressure source to required load, and only includes the wireless electric energy transmission device of primary element, convenient for small-sized
Change.The technical solution of the utility model is as follows:
A kind of automatic Regulation resonance type wireless power transfer using Buck converter, including primary and secondary side, it is former
While including the transmitting coil L that power current source, inverter circuit and series connection are connected to static resonance capacitor1, secondary side includes that series connection is connected to
The receiving coil L of static resonance capacitor2, receiving coil L2AC-DC rectifier bridge is accessed, the DC voltage of AC-DC rectifier bridge passes through
Obtain to drive the constant pressure source of load after Buck converter, which is characterized in that
The power power-supply is digital adjustable power power-supply, is connect in primary controller addition controller and wireless output
Module is received, is added with measurement module on secondary side, AC-DC rectifier bridge output voltage divides input measurement mould by high resistance measurement
Block, measurement module will be sent measurement module by modulation circuit and transmitting antenna in relation to the measuring signal of converter input voltage
To the wireless output receiving module of primary side, wireless output receiving module obtains demodulated signal by receiving antenna and demodulator circuit；
Demodulated signal controls digital adjustable power power-supply to controller based on the received.
Preferably, wireless data transfer module takes FM analog-modulated.
Digital adjustable power power-supply is the DC-DC converter of Digital Signals, and switching frequency is greater than resonance type wireless
The resonance frequency of power transfer.Digital adjustable power power-supply also can choose linear regulator chip, feedback resistance choosing
Digital regulation resistance is selected, achievees the purpose that digital control electric power output voltage.
The automatic Regulation resonance type wireless power transfer of the utility model, as a hardware system, then is aided with control
Algorithm processed adjusts supply voltage by feedback Buck converter both end voltage, what system can change in external environment or load
In the case of adjust in time, avoid the occurrence of operation irregularity or fallback.
Detailed description of the invention
Fig. 1 is the functional block diagram of general wireless electric energy transmission device.
Fig. 2 is the functional block diagram of system described in the utility model.
Fig. 3 is the electrical block diagram of the utility model.
Wherein: 1 is system primary side, and 2 be system pair side, and 3 be inverter circuit, and 4 be data receiver processing module, and 5 be measurement
Module, 6 be modulation circuit and transmitting antenna, and 7 be receiving antenna and demodulator circuit.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
Classical string-string resonant radio energy mode, referring to the partial circuit of Fig. 1 and Fig. 3, primary side 1 and secondary side 2
There is transmitting coil L1With receiving coil L2, connect and be connected to static resonance capacitor, the resonant circuit frequency of composition is equal, simultaneously
Adjusting inverter circuit 3 is equal to it the fundametal compoment frequency of output signal；Secondary side receiving coil L2Access AC-DC rectifier bridge
With filter capacitor CODC voltage is obtained, and accesses the constant pressure source that Buck converter obtains to drive load；But this mode
It when external condition changes, can not adjust in real time, guarantee that system is normal and efficient work.
Therefore a kind of wireless system for transmitting data is introduced, as shown in Figures 2 and 3, and the power power-supply in primary side 1 is changed to
Digital adjustable power power-supply.There is measurement module 5 on secondary side, uses the output of Buck converter as pressure source；Rectifier bridge output
Voltage divides input measurement module by high resistance measurement；Measurement module passes through modulation circuit and transmitting antenna 6 for measurement module
Obtained data are sent to wireless output receiving module 4, obtain demodulated signal by receiving antenna and demodulator circuit 7；After demodulation
Signal access controller, controller according to rectifier bridge output voltage access digital adjustable power power-supply control primary side input
Voltage.Particularly, the wireless data transfer module, including modulation circuit and transmitting antenna 6 and receiving antenna and demodulation electricity
FM analog-modulated is taken on road 7, to reduce time delay, control algolithm is avoided overshoot occur；The digital adjustable power that primary side 1 is selected
Power supply can choose the DC-DC converter of Digital Signals, but require switching frequency much larger than resonance frequency；Also it can choose
Linear regulator chip, feedback resistance select digital regulation resistance, achieve the purpose that digital control electric power output voltage.
Claims (4)
1. a kind of automatic Regulation resonance type wireless power transfer using Buck converter, including primary and secondary side, primary side
The transmitting coil L of static resonance capacitor is connected to including power current source, inverter circuit and series connection1, secondary side is connected to quiet including series connection
The receiving coil L of state resonant capacitance2, receiving coil L2AC-DC rectifier bridge is accessed, the DC voltage of AC-DC rectifier bridge passes through Buck
Obtain to drive the constant pressure source of load after converter, which is characterized in that
The power current source is digital adjustable power power-supply, is received in primary controller addition controller and wireless output
Module is added with measurement module on secondary side, and AC-DC rectifier bridge output voltage divides input measurement module by high resistance measurement,
Measurement module is sent the measuring signal in relation to converter input voltage to measurement module to by modulation circuit and transmitting antenna
The wireless output receiving module of primary side, wireless output receiving module obtain demodulated signal by receiving antenna and demodulator circuit；Control
Demodulated signal controls digital adjustable power power-supply to device processed based on the received.
2. wireless electric energy transmission device according to claim 1, which is characterized in that wireless data transfer module takes FM
Analog-modulated.
3. wireless electric energy transmission device according to claim 1, which is characterized in that digital adjustable power power-supply is number
The DC-DC converter of signal control, switching frequency are greater than the resonance frequency of resonance type wireless electric energy transmission system.
4. wireless electric energy transmission device according to claim 1, which is characterized in that digital adjustable power power-supply selection line
Property voltage stabilizing chip, feedback resistance select digital regulation resistance, achieve the purpose that digital control electric power output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821457180.6U CN209448509U (en) | 2018-09-06 | 2018-09-06 | Use the automatic Regulation resonance type wireless power transfer of Buck converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821457180.6U CN209448509U (en) | 2018-09-06 | 2018-09-06 | Use the automatic Regulation resonance type wireless power transfer of Buck converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209448509U true CN209448509U (en) | 2019-09-27 |
Family
ID=68008289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821457180.6U Active CN209448509U (en) | 2018-09-06 | 2018-09-06 | Use the automatic Regulation resonance type wireless power transfer of Buck converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209448509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036939A (en) * | 2019-12-24 | 2021-06-25 | 中国石油天然气集团有限公司 | Non-contact electromagnetic conversion power supply device and power supply method |
-
2018
- 2018-09-06 CN CN201821457180.6U patent/CN209448509U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036939A (en) * | 2019-12-24 | 2021-06-25 | 中国石油天然气集团有限公司 | Non-contact electromagnetic conversion power supply device and power supply method |
| CN113036939B (en) * | 2019-12-24 | 2023-09-15 | 中国石油天然气集团有限公司 | Non-contact electromagnetic conversion power supply device and power supply method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5930328B2 (en) | System for wireless power transmission | |
| CN104701998B (en) | Resonance type non-contact power supply device, electric energy receiving end and control method | |
| CN110277820B (en) | Parameter self-adjusting wireless charging system based on LCC compensation network | |
| CN105914899B (en) | It is a kind of can two-way operation radio energy transmission system and method | |
| TWI604678B (en) | Radio transmission system | |
| CN104701999B (en) | Mode of resonance contactless power supply device, electric energy transmitting terminal and control method | |
| CN104079079A (en) | Resonance type non-contact power supply device, integrated circuit and constant voltage control method | |
| CN110121827B (en) | Non-contact power supply device | |
| CN103812195A (en) | Wireless charge and discharge circuit, terminal device and wireless charge and discharge method | |
| CN110071562A (en) | A kind of sending side switching mixed topology constant current constant voltage induction type wireless charging method and system | |
| CN204809885U (en) | Non -contact power transfer device | |
| CN108233455A (en) | A kind of wireless charging circuit, method, system and electronic equipment | |
| CN206807107U (en) | A kind of emitter of wireless charging, reception device and wireless charging system | |
| CN113765233B (en) | Electronic equipment and control method thereof | |
| CN105098844A (en) | Noncontact power transmission device and power transmission method | |
| CN109193962A (en) | Automatic regulating voltage method with decompression transducer resonance type wireless electric energy transmission system | |
| US20180025265A1 (en) | Electronic equipment | |
| CN107959358A (en) | The control method and wireless charging device of a kind of wireless charging device | |
| CN207518336U (en) | A kind of wireless charging circuit, system and electronic equipment | |
| CN204809833U (en) | Undervoltage protection circuit and wireless power transmission device | |
| CN209448509U (en) | Use the automatic Regulation resonance type wireless power transfer of Buck converter | |
| KR101695457B1 (en) | Wireless Power receiving unit | |
| US20190341809A1 (en) | Non-contact power supply device | |
| CN114844234A (en) | Charging control method, electronic equipment and wireless charging system | |
| CN110383631A (en) | Mode of resonance power receiving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |