CN111416443A - Device capable of realizing wireless power transmission voltage stabilization output - Google Patents
Device capable of realizing wireless power transmission voltage stabilization output Download PDFInfo
- Publication number
- CN111416443A CN111416443A CN201910010362.1A CN201910010362A CN111416443A CN 111416443 A CN111416443 A CN 111416443A CN 201910010362 A CN201910010362 A CN 201910010362A CN 111416443 A CN111416443 A CN 111416443A
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- circuit
- power transmission
- voltage stabilization
- wireless power
- voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Dc-Dc Converters (AREA)
Abstract
A device capable of realizing wireless power transmission voltage stabilization output comprises a high-frequency inverter circuit, a primary side compensation network, a transmitting coil, a receiving coil, a secondary side compensation network, a rectification filter circuit, a DCDC conversion circuit, a sampling circuit, a power supply module, a microcontroller and a gate pole drive circuit. The invention can carry out voltage stabilization by carrying out closed-loop feedback control at the receiving end, has good transient response performance and short system regulation time; the anti-interference performance is good, and the anti-interference performance is not easily interfered by external electromagnetic signals; the power supply has the advantages of no need of adding excessive hardware circuits, reduced equipment volume, improved system power density, simple topology of the voltage stabilizing circuit, low cost and good economical efficiency.
Description
Technical Field
The invention relates to the technical field of wireless power transmission, in particular to a device for wireless power transmission voltage stabilization output, which can effectively work under the condition of having requirements on the volume of equipment and has the characteristics of high response speed, good anti-interference performance and the like.
Background
The wireless charging technology is a non-contact type transmission electric energy mode, has the advantages of safety, reliability, flexibility and the like compared with the traditional wired transmission mode, and has wide application prospect. When the load changes, the current voltage stabilizing output device of the wireless power transmission device is complex, an additional hardware circuit is needed, and the control system has the defects of low response speed and high cost.
Disclosed in a wireless charging control circuit, a wireless charging system and a circuit control method (application No. 201610567324.2), a wireless charging control circuit is provided, in which a wireless communication component is added to receive a charging parameter fed back from an output terminal, and a control component sends a driving signal to a DC/AC conversion module according to the charging parameter to adjust an output voltage; a wireless charging control circuit, a wireless charging control method and an electronic device wireless transmission control method (application number 201611218163.2) disclose a wireless transmission control circuit, which can better adjust output voltage and reduce energy loss and equipment temperature rise by acquiring charging parameters of electric equipment on a secondary side and feeding the charging parameters back to a primary side receiver in a wireless mode for adjustment; a universal wireless charging system for motor vehicles (application No. 201180046782.7) discloses a wireless charging system that automatically adjusts output signals based on an established wireless charging protocol and input signals with high control accuracy. The wireless power transmission voltage stabilization output device disclosed in the above document can well realize the voltage stabilization output function, but due to the addition of the wireless communication component, the transmission process of the feedback signal is delayed, so that the response performance of the system is deteriorated; meanwhile, an additional hardware circuit is added, and the volume and the cost of the equipment are increased.
It can be seen that the current domestic wireless charging voltage regulator has the disadvantages that the transient response performance of the ① system is poor, the response time of the system is increased due to the transmission of the feedback signal in a wireless communication mode after the load is changed, the anti-interference performance of the ② system is reduced, the feedback signal is easily interfered by external electromagnetic signals in the transmission process, and the stability of the system is reduced.
The existing voltage stabilizing device needs to increase more hardware circuits, so that the volume of equipment is increased, and the system efficiency and the power density are reduced. The voltage stabilizing link has complex circuit topology, increases control difficulty and increases cost.
Disclosure of Invention
In order to overcome the defects of the conventional wireless power transmission voltage-stabilizing output device, the invention aims to provide a device capable of realizing wireless power transmission voltage-stabilizing output. Better transient response performance of the system, better anti-interference performance of the system and lower cost control can be realized.
In order to achieve the purpose, the invention adopts the technical scheme that:
can realize wireless power transmission steady voltage output's device includes: the high-frequency inverter circuit comprises a high-frequency inverter circuit, a primary side compensation network, a transmitting coil, a receiving coil, a secondary side compensation network, a rectifying and filtering circuit, a DCDC conversion circuit, a sampling circuit, a power supply module, a microcontroller and a gate pole driving circuit.
The high-frequency inverter circuit receives the output voltage of the power supply module, inverts the output voltage into alternating current and transmits the alternating current to the primary side compensation network.
The primary side and the secondary side compensation networks generate resonance through self-inductance of the transmission coil, transmission efficiency is improved, and input and output characteristics are improved.
The transmitting and receiving coil transmits energy from the primary side to the secondary side according to the mutual inductance principle of the primary side and the secondary side of the transformer.
The rectification filter circuit receives the alternating current transmitted by the primary side, rectifies the alternating current into direct current and transmits the direct current to the DCDC conversion circuit.
The DCDC conversion circuit receives the direct current transmitted by the rectifying and filtering circuit, converts the direct current into direct current with another fixed voltage or adjustable voltage, and transmits the direct current to a load.
The sampling circuit collects voltages at two ends of the load and transmits the voltages to the microcontroller for processing.
The microcontroller processes the voltage signal transmitted by the sampling circuit and transmits the processed voltage signal to the gate driving circuit.
The gate driving circuit drives a switching tube of the DCDC conversion circuit according to the PWM control signal output by the microcontroller to regulate the output voltage.
The power supply module obtains power from the system and supplies the power to the microcontroller, the gate drive circuit and the sampling circuit.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the device capable of realizing the voltage stabilization output of the wireless power transmission has better transient response performance, avoids the time delay effect caused by wireless transmission of a feedback signal by a closed-loop control mode at a receiving end, and has short system regulation time and good voltage stabilization performance.
2. The device capable of realizing wireless power transmission voltage stabilization output has better anti-interference performance, and is not easily interfered by external electromagnetic signals in the feedback signal transmission process.
3. The device capable of realizing wireless power transmission voltage stabilization output does not need to increase more hardware circuits, can reduce the volume of equipment, effectively improves the power density of a system, and has wider application range. The voltage stabilizing link has the advantages of simple circuit topology, small control difficulty, low cost and better economy.
Drawings
Fig. 1 is a functional block diagram showing a design of an apparatus capable of realizing a voltage-stabilized output of wireless power transmission;
fig. 2 is a circuit connection topology of an apparatus capable of realizing wireless power transmission voltage stabilization output.
Detailed Description
In order to better understand the technical solution of the present invention, the following further describes the working principle and the implementation mode of the present invention with reference to the attached drawings.
As shown in fig. 1, a design function block diagram of a device capable of realizing wireless power transmission voltage stabilization output is provided, and a control scheme capable of realizing wireless charging voltage stabilization output of the invention mainly comprises a high-frequency inverter circuit, a primary side and secondary side compensation network, a transmitting and receiving coil, a rectification filter circuit, a DCDC conversion circuit, a sampling circuit, a power supply module, a microcontroller and a gate drive circuit. The high-frequency inverter circuit inverts direct current output by the power supply into alternating current, the alternating current is transmitted to the rectification filter circuit through the compensation network and the transmitting and receiving coil to be filtered, and the alternating current is output to a load after being subjected to voltage regulation through the DCDC conversion circuit; the microprocessor receives a voltage signal of the sampling circuit, and the gate driving circuit receives a PWM signal output by the microcontroller and drives the DCDC conversion circuit to regulate output voltage.
Fig. 2 shows a circuit connection topology of a device capable of realizing wireless power transmission voltage stabilization output. The microcontroller is used as a control core, the DCDC conversion circuit is comprehensively coordinated to operate, and the duty ratio of a switching device of the DCDC conversion circuit can be adjusted at any time according to the load disturbance condition, so that the output voltage is adjusted. The high-frequency inverter circuit inverts the direct current output by the power supply, the output is transmitted to the receiving side through the coupling transmission unit and then filtered through the rectifying and filtering circuit, and finally the voltage is regulated through the DCDC conversion circuit and then supplied to a load. The sampling circuit transmits the load voltage change condition to the microcontroller so as to realize closed-loop feedback control. The gate driving circuit receives the PWM signal sent by the microcontroller and drives a switching tube of the DCDC conversion circuit to carry out effective on-off control, thereby realizing the voltage stabilizing function.
In conclusion, the invention can perform voltage stabilization by performing closed-loop feedback control at the receiving end, has good transient response performance and short system regulation time; the anti-interference performance is good, and the anti-interference performance is not easily interfered by external electromagnetic signals; the power supply has the advantages of no need of adding excessive hardware circuits, reduced equipment volume, improved system power density, simple topology of the voltage stabilizing circuit, low cost and good economical efficiency.
Claims (3)
1. An apparatus capable of realizing wireless power transmission voltage stabilization output, the circuit link comprising: the high-frequency inverter circuit comprises a high-frequency inverter circuit, a primary side compensation network, a transmitting coil, a receiving coil, a secondary side compensation network, a rectifying and filtering circuit, a DCDC conversion circuit, a sampling circuit, a power supply module, a microcontroller and a gate pole driving circuit.
2. The apparatus capable of realizing wireless power transmission voltage stabilization output according to claim 1, wherein: the voltage is stabilized by closed-loop feedback control at the receiving end, and the transient response performance and the anti-interference performance are good.
3. The apparatus capable of realizing wireless power transmission voltage stabilization output according to claim 1, wherein: in the voltage stabilizing link, excessive hardware circuits are not required to be added, the equipment volume is reduced, the system power density is improved, and the voltage stabilizing circuit is simple in topology, low in cost and good in economical efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910010362.1A CN111416443A (en) | 2019-01-07 | 2019-01-07 | Device capable of realizing wireless power transmission voltage stabilization output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910010362.1A CN111416443A (en) | 2019-01-07 | 2019-01-07 | Device capable of realizing wireless power transmission voltage stabilization output |
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| Publication Number | Publication Date |
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| CN111416443A true CN111416443A (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910010362.1A Pending CN111416443A (en) | 2019-01-07 | 2019-01-07 | Device capable of realizing wireless power transmission voltage stabilization output |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917165A (en) * | 2020-07-09 | 2020-11-10 | 中国电力科学研究院有限公司 | Crawler-type inspection robot for transformer substation, charging device, charging system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090218994A1 (en) * | 2005-12-30 | 2009-09-03 | Emerson Network Power Energy Systems North America | Resonance DC/DC Converter and Control Method Thereof |
| CN204316199U (en) * | 2015-01-13 | 2015-05-06 | 山东大学 | A kind of contactless power transmission system |
| CN206615079U (en) * | 2017-02-06 | 2017-11-07 | 潍柴动力股份有限公司 | A kind of drive system of electric automobile DC/DC change-over circuits |
| CN108390561A (en) * | 2018-03-06 | 2018-08-10 | 安徽卓越动力科技有限公司 | A kind of DC/DC DCPS digitally controlled power sources design |
-
2019
- 2019-01-07 CN CN201910010362.1A patent/CN111416443A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090218994A1 (en) * | 2005-12-30 | 2009-09-03 | Emerson Network Power Energy Systems North America | Resonance DC/DC Converter and Control Method Thereof |
| CN204316199U (en) * | 2015-01-13 | 2015-05-06 | 山东大学 | A kind of contactless power transmission system |
| CN206615079U (en) * | 2017-02-06 | 2017-11-07 | 潍柴动力股份有限公司 | A kind of drive system of electric automobile DC/DC change-over circuits |
| CN108390561A (en) * | 2018-03-06 | 2018-08-10 | 安徽卓越动力科技有限公司 | A kind of DC/DC DCPS digitally controlled power sources design |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917165A (en) * | 2020-07-09 | 2020-11-10 | 中国电力科学研究院有限公司 | Crawler-type inspection robot for transformer substation, charging device, charging system and method |
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