CN105576839A - Non-contact type miniwatt electric energy transmission system - Google Patents
Non-contact type miniwatt electric energy transmission system Download PDFInfo
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- CN105576839A CN105576839A CN201410580764.2A CN201410580764A CN105576839A CN 105576839 A CN105576839 A CN 105576839A CN 201410580764 A CN201410580764 A CN 201410580764A CN 105576839 A CN105576839 A CN 105576839A
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Abstract
The invention relates to a non-contact type miniwatt electric energy transmission system, and belongs to the technical field of electric energy transmission. The non-contact type miniwatt electric energy transmission system is composed of an energy emission part and an energy reception part; the energy emission part comprises a rectification and filtering circuit, an inversion circuit, a primary compensation circuit and a primary winding circuit in serial connection successively; and the energy reception part comprises a secondary winding circuit, a secondary compensation circuit and an adjusting circuit in serial connection successively; and the adjusting circuit is connected with an external load. The non-contact type miniwatt electric energy transmission system by taking SG3525 as the control core is simple and reliable, and can realize high-efficiency electric energy transmission. A single lithium battery can be charged wirelessly by supplying the received voltage to a management chip TL4906 of the lithium battery through a rectification, filtering and voltage stabilizing tube 7805, and the system is simple in structure and easy to popularize and use widely.
Description
Technical field
The present invention relates to electric energy transmission technology field, be specifically related to a kind of contactless low-power energy transmission system.
Background technology
Traditional delivery of electrical energy, transmits mainly through wire, needs direct physical to contact between power supply with load.In daily life, along with the increase of power consumption equipment, direct physical contact had both been inconvenient to the potential safety hazard turn increasing electricity consumption.In addition, along with the development of artificial organs and undersea detection device, non-contact charge becomes a kind of urgent demand.
Because non-contact type electric energy transmission belongs to loose couplings, delivery of electrical energy efficiency is lower.General employing high-frequency inverter circuit, improves efficiency of transmission by improving frequency.In high-frequency inverter circuit, many control chips are expensive, use complexity, are unsuitable for present large-scale production and use.
Summary of the invention
It is control core with SG3525 that the present invention is intended to propose a kind of, has the contactless low-power energy transmission system of overcurrent protection function.
Technical program of the present invention lies in:
Contactless low-power energy transmission system, is launched by energy and energy acceptance two parts form; Wherein, Energy-emitting portion comprises rectifying and wave-filtering circuit, inverter circuit, former limit compensating circuit and the former limit winding circuit of connecting successively; Energy receptor portions is made up of the vice-side winding circuit of connecting successively, secondary compensating circuit, regulating circuit; External load is connected by regulating circuit.
Preferably, by a current protecting circuit between described former limit compensating circuit and inverter circuit.
More preferably, described current protecting circuit is made up of the current sampling resistor of connecting successively, operational amplifier and control circuit; Wherein, current sampling resistor is serially connected on the compensating circuit of former limit, and control circuit connects inverter circuit.
More preferably, described control circuit adopts G3525 chip, is made up of undervoltage lockout circuit, SS (soft start) control circuit and PWM latch.
Or preferably, described inverter circuit adopts full bridge inverter, and drive circuit adopts two panels IR2111 chip.
Or preferably, described former limit winding circuit and vice-side winding circuit are all wound on EE type ferrite magnetic core.
Technique effect of the present invention is:
The present invention's design be that the small-power non-contact type electric energy transmission system of control core is simple and reliable with SG3525, the high efficiency of transmission of electric energy can be realized.If by the voltage that receives after rectifying and wave-filtering and voltage-stabiliser tube 7805, supply single lithium battery managing chip TL4906, can realize the wireless charging to single lithium battery, and structure is simple, be easy to large-scale promotion and use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the contactless low-power energy transmission system of the present invention.
Embodiment
Contactless low-power energy transmission system, is launched by energy and energy acceptance two parts form; Wherein, Energy-emitting portion comprises rectifying and wave-filtering circuit, inverter circuit, former limit compensating circuit and the former limit winding circuit of connecting successively; Energy receptor portions is made up of the vice-side winding circuit of connecting successively, secondary compensating circuit, regulating circuit; External load is connected by regulating circuit.
Wherein, a current protecting circuit is passed through between former limit compensating circuit and inverter circuit.Current protecting circuit is made up of the current sampling resistor of connecting successively, operational amplifier and control circuit; Wherein, current sampling resistor is serially connected on the compensating circuit of former limit, and control circuit connects inverter circuit.Control circuit adopts G3525 chip, is made up of undervoltage lockout circuit, SS (soft start) control circuit and PWM latch.Inverter circuit adopts full bridge inverter, and drive circuit adopts two panels IR2111 chip.Former limit winding circuit and vice-side winding circuit are all wound on EE type ferrite magnetic core.
Industrial-frequency alternating current of the present invention is through step-down, full bridge rectifier, filter circuit becomes operational direct current, produce high frequency alternating current by inverter circuit, complete the conversion from low frequency ac to high-frequency alternating current, the high-frequency alternating current of generation supplies former limit winding circuit, thus in the magnetic field that former limit winding circuit changes, vice-side winding circuit passes through inductively to receive electric energy, after secondary compensating circuit and regulating circuit, and the direct current that parameter can be provided suitable to load.
In full-bridge resonance inversion circuit, serial connection current sampling resistor, can realize the sampling to electric current in circuit.By the Voltage Feedback that collects to control circuit SG3525; thus the overcurrent protection of realizing circuit, because the voltage adopted is less, therefore need to amplify through operational amplifier; voltage after amplification and reference voltage compare, and the defeated people of comparative result is to 10 pin of SG3525.If the sampled voltage after amplifying is less than reference voltage, then output low level; If be greater than reference voltage, then export high level, SG3525 is turned off, realizes overcurrent protection function.
Claims (6)
1. contactless low-power energy transmission system, is characterized in that: be made up of energy transmitting and energy acceptance two parts; Wherein, Energy-emitting portion comprises rectifying and wave-filtering circuit, inverter circuit, former limit compensating circuit and the former limit winding circuit of connecting successively; Energy receptor portions is made up of the vice-side winding circuit of connecting successively, secondary compensating circuit, regulating circuit; External load is connected by regulating circuit.
2. low-power energy transmission system as contactless in claim 1, is characterized in that: by a current protecting circuit between described former limit compensating circuit and inverter circuit.
3. low-power energy transmission system as contactless in claim 2, is characterized in that: described current protecting circuit is made up of the current sampling resistor of connecting successively, operational amplifier and control circuit; Wherein, current sampling resistor is serially connected on the compensating circuit of former limit, and control circuit connects inverter circuit.
4. low-power energy transmission system as contactless in claim 3, is characterized in that: described control circuit adopts G3525 chip, is made up of undervoltage lockout circuit, SS (soft start) control circuit and PWM latch.
5. low-power energy transmission system as contactless in claim 1, is characterized in that: described inverter circuit adopts full bridge inverter, and drive circuit adopts two panels IR2111 chip.
6. low-power energy transmission system as contactless in claim 1, is characterized in that: described former limit winding circuit and vice-side winding circuit are all wound on EE type ferrite magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580764.2A CN105576839A (en) | 2014-10-27 | 2014-10-27 | Non-contact type miniwatt electric energy transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580764.2A CN105576839A (en) | 2014-10-27 | 2014-10-27 | Non-contact type miniwatt electric energy transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105576839A true CN105576839A (en) | 2016-05-11 |
Family
ID=55886652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410580764.2A Pending CN105576839A (en) | 2014-10-27 | 2014-10-27 | Non-contact type miniwatt electric energy transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105576839A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532977A (en) * | 2016-11-18 | 2017-03-22 | 许继电源有限公司 | Control device based on wireless power transmission system and wireless power transmission system |
| CN114274675A (en) * | 2021-12-29 | 2022-04-05 | 深圳印核微电子有限公司 | Programmable ink-jet printing head driving chip |
-
2014
- 2014-10-27 CN CN201410580764.2A patent/CN105576839A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532977A (en) * | 2016-11-18 | 2017-03-22 | 许继电源有限公司 | Control device based on wireless power transmission system and wireless power transmission system |
| CN106532977B (en) * | 2016-11-18 | 2019-03-26 | 许继电源有限公司 | Control device and radio energy transmission system based on radio energy transmission system |
| CN114274675A (en) * | 2021-12-29 | 2022-04-05 | 深圳印核微电子有限公司 | Programmable ink-jet printing head driving chip |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160511 |