CN105119393A - Wireless energy transmission system - Google Patents
Wireless energy transmission system Download PDFInfo
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- CN105119393A CN105119393A CN201510650198.2A CN201510650198A CN105119393A CN 105119393 A CN105119393 A CN 105119393A CN 201510650198 A CN201510650198 A CN 201510650198A CN 105119393 A CN105119393 A CN 105119393A
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Abstract
The invention discloses a wireless energy transmission system. A drive circuit of the system comprises a transformer T1, a transformer T2, an MOS (metal oxide semiconductor) transistor Q11, an MOS transistor Q21, an MOS transistor Q31 and an MOS transistor Q41 which constitute the bridge drive circuit. The system further comprises a transmitting terminal DSP (digital signal processor) control unit, a signal enhancement unit and an electromagnetic isolation unit, wherein the transmitting terminal DSP control unit transmits a PWM (pulse width modulation) signal to the electromagnetic isolation unit, and the signal enhancement unit enhances the input signal processed by the electromagnetic isolation unit, amplifies the signal current and then sends the signal to the drive circuit of the system. The inversion drive circuit is simple in structure, low in cost and low in power consumption.
Description
Technical field
The present invention relates to a kind of for wireless energy transfer system, be specifically related to a kind of drive circuit for wireless transmitting system.
Background technology
Wireless power transmission technology is one of most active hot research direction, current electrical engineering field, it integrates basic research and application study, be new research field and the advanced subject of multidisciplinary, the strong intersection that the outer academia of Present Domestic and industrial quarters are explored, contain many technical fields such as electromagnetic field, power electronic technology, electric power system, control technology, physics, materialogy, information technology.Adopt wireless power mode effectively can overcome all kinds of defects of electric wire connected mode existence, realize freely powering of electronic apparatus, there is important application expection and vast potential for future development.
At present, electric automobile wireless charging mode emphasizes transmitting coil and receiving coil symmetry mostly, but because electric automobile manufacturer is different, the standard that receiving coil below automobile chassis is ununified, size and canoe are not quite similar, and this cannot realize transmitting coil and receiving coil adopts identical resonance frequency to carry out maximum power transfer with regard to causing; In addition, because the change of external condition and the change of different electric automobile coil all can make resonance frequency change thereupon, delivery of electrical energy efficiency is caused to reduce, therefore charging device must adapt to the different electric energy receiving systems that different electric automobile has, and charging device should carry out Automatic adjusument according to the demand of the charge rule of battery to frequency and position simultaneously.Therefore, be badly in need of at present a kind of electric automobile general, wireless energy transfer system that high power, efficiency of transmission are high.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of for wireless energy transfer system, and system, by after the reinforcement of signal and Magnetic isolation, controls the input waveform of metal-oxide-semiconductor, send into transmitting coil to obtain the drive waveforms needed, thus reach the object of Energy Transfer.
To achieve these goals, the technical scheme that the present invention takes is: a kind of for wireless energy transfer system, the drive circuit of this system comprises transformer T1, transformer T2, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q21, metal-oxide-semiconductor Q31, metal-oxide-semiconductor Q41, and described transformer T1, transformer T2, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q21, metal-oxide-semiconductor Q31, metal-oxide-semiconductor Q41 form bridge drive circuit.This system also comprises transmitting terminal DSP control unit, signal enhancement unit and electromagnetic isolation unit, described transmitting terminal DSP control system sends pwm signal to electromagnetic isolation unit, signal after electromagnetic isolation cell processing, after signal enhancement unit strengthens input signal, delivers to the drive circuit of system after being amplified by signal code.Described metal-oxide-semiconductor Q21 and metal-oxide-semiconductor Q41, metal-oxide-semiconductor Q11 be interior phase 180 at the same time.Time this system is also provided with for metal-oxide-semiconductor Q21 conducting, the delay unit of metal-oxide-semiconductor Q41, metal-oxide-semiconductor Q11 Delayed conducting.This system also comprises pfc circuit, civil power 220V dress is changed to 380V through inversion driver module by pfc circuit, and frequency dress is changed to 64KHZ.Described PDC circuit both sides are also provided with the DC/DC modular converter that finished product power module and 380V turn 12V.This system comprises the voltage sample module and current sample module that are connected with transmitting terminal DSP control system.This system also comprises the wireless transport module be connected with transmitting terminal DSP control system.
Beneficial effect of the present invention is: the present invention, by after the reinforcement of signal and Magnetic isolation, controls the input waveform of metal-oxide-semiconductor, sends into transmitting coil with the drive waveforms obtaining needs, thus reach the object of Energy Transfer, this inverse changing driving circuit, structure is simple, low cost, low-power consumption.
Accompanying drawing explanation
Below the content expressed by this Figure of description and the mark in figure are briefly described:
Fig. 1 is the system construction drawing of the specific embodiment of the present invention;
Fig. 2 is the electromagnetic isolation element circuit figure of the specific embodiment of the present invention;
Fig. 3 is the signal enhancement unit circuit diagram of the specific embodiment of the present invention;
Fig. 4 is the driving circuit principle figure of the specific embodiment of the present invention.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part and operation principle, manufacturing process and operation using method etc., be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
As shown in Figure 1, a kind of for wireless energy transfer system, the drive circuit of this system comprises transformer T1, transformer T2, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q21, metal-oxide-semiconductor Q31, metal-oxide-semiconductor Q41, and described transformer T1, transformer T2, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q21, metal-oxide-semiconductor Q31, metal-oxide-semiconductor Q41 form bridge drive circuit.This system also comprises transmitting terminal DSP control unit, signal enhancement unit and electromagnetic isolation unit, described transmitting terminal DSP control system sends pwm signal to electromagnetic isolation unit, signal after electromagnetic isolation cell processing, after signal enhancement unit strengthens input signal, delivers to the drive circuit of system after being amplified by signal code.Described metal-oxide-semiconductor Q21 and metal-oxide-semiconductor Q41, metal-oxide-semiconductor Q11 be interior phase 180 at the same time.Time this system is also provided with for metal-oxide-semiconductor Q21 conducting, the delay unit of metal-oxide-semiconductor Q41, metal-oxide-semiconductor Q11 Delayed conducting.This system also comprises pfc circuit, civil power 220V dress is changed to 380V through inversion driver module by pfc circuit, and frequency dress is changed to 64KHZ.Described PDC circuit both sides are also provided with the DC/DC modular converter that finished product power module and 380V turn 12V.This system comprises the voltage sample module and current sample module that are connected with transmitting terminal DSP control system.This system also comprises the wireless transport module be connected with transmitting terminal DSP control system.Designed drive circuit module is mainly used in driving wireless energy transfer system transmitting terminal coil, coil drive function when vehicle charges normal need be met, system intelligence control overflow need be met, and then improve automobile wireless charge efficiency and security reliability.
By electrical network for system provides civil power, civil power 220V dress is changed to 380V through inversion driver module by PFC, and frequency dress is changed to 64KHZ, exports a square wave in the ideal situation and gives transmitting coil.
Pwm signal sends to U7 by DSP, through U7 to signal transacting, plays the Magnetic isolation effect to signal, avoids electric current oppositely to burn DSP.U2/U3 chip strengthens input signal, delivers to the bridge circuit of inverter after being amplified by signal code.Control the waveform of two transformer primary sides, thus make the waveform that the output of four MOS (Q11, Q21, Q31, Q41) needs.Wireless energy transfer system, comprises transformer T1/T2, and four MOS (Q11, Q21, Q31, Q41) form bridge drive circuit, and by the waveform of its metal-oxide-semiconductor of software control, hardware configuration is simple, with low cost.System, by after the reinforcement of signal and Magnetic isolation, controls the input waveform of metal-oxide-semiconductor, sends into transmitting coil, thus reach the object of Energy Transfer with the drive waveforms obtaining needs.When receiving the signal of system charge request, circuit is started working, and drive circuit drives transmitting coil work, is receiving coil transmitting energy.Thus be power brick charging.
According to the design principle of system, need to carry out complementary DC/DC to control, Q21 and Q41/Q11 at the same time interior phase place will differ 180, but in the moment of Q21 conducting, Q41/Q11 can not conducting, otherwise just occur managing up and down, the phenomenon of left and right pipe conducting simultaneously, can not realize the complementation on practical significance, therefore software is when giving drive waveforms, and pipe need occur complementation up and down, Dead Time will be had simultaneously, when namely going up pipe conducting, lower pipe or right pipe time delay certain hour carry out conducting, avoid the possibility of conducting simultaneously;
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.The protection range that protection scope of the present invention should limit with claims is as the criterion.
Claims (8)
1. one kind for wireless energy transfer system, it is characterized in that, the drive circuit of this system comprises transformer T1, transformer T2, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q21, metal-oxide-semiconductor Q31, metal-oxide-semiconductor Q41, and described transformer T1, transformer T2, metal-oxide-semiconductor Q11, metal-oxide-semiconductor Q21, metal-oxide-semiconductor Q31, metal-oxide-semiconductor Q41 form bridge drive circuit.
2. according to claim 1 for wireless energy transfer system, it is characterized in that, this system also comprises transmitting terminal DSP control unit, signal enhancement unit and electromagnetic isolation unit, described transmitting terminal DSP control system sends pwm signal to electromagnetic isolation unit, signal after electromagnetic isolation cell processing, after signal enhancement unit strengthens input signal, delivers to the drive circuit of system after being amplified by signal code.
3. according to claim 1 for wireless energy transfer system, it is characterized in that, described metal-oxide-semiconductor Q21 and metal-oxide-semiconductor Q41, metal-oxide-semiconductor Q11 be interior phase 180 at the same time.
4. according to claim 1 for wireless energy transfer system, it is characterized in that, time this system is also provided with for metal-oxide-semiconductor Q21 conducting, the delay unit of metal-oxide-semiconductor Q41, metal-oxide-semiconductor Q11 Delayed conducting.
5. according to claim 1 for wireless energy transfer system, it is characterized in that, this system also comprises pfc circuit, civil power 220V dress is changed to 380V through inversion driver module by pfc circuit, and frequency dress is changed to 64KHZ.
6. according to claim 5 for wireless energy transfer system, it is characterized in that, described PDC circuit both sides are also provided with the DC/DC modular converter that finished product power module and 380V turn 12V.
7. according to claim 2 for wireless energy transfer system, it is characterized in that, this system comprises the voltage sample module and current sample module that are connected with transmitting terminal DSP control system.
8. according to claim 2 for wireless energy transfer system, it is characterized in that, this system also comprises the wireless transport module be connected with transmitting terminal DSP control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510650198.2A CN105119393A (en) | 2015-09-30 | 2015-09-30 | Wireless energy transmission system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510650198.2A CN105119393A (en) | 2015-09-30 | 2015-09-30 | Wireless energy transmission system |
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| CN105119393A true CN105119393A (en) | 2015-12-02 |
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| CN201510650198.2A Pending CN105119393A (en) | 2015-09-30 | 2015-09-30 | Wireless energy transmission system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406569A (en) * | 2020-11-05 | 2021-02-26 | 宁波赛耐比光电科技股份有限公司 | Control device and control method of wireless charging pile |
| CN113629832A (en) * | 2021-10-12 | 2021-11-09 | 景昱医疗器械(长沙)有限公司 | Charging control method of external charger and related device |
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| CN202513892U (en) * | 2012-03-27 | 2012-10-31 | 奇瑞汽车股份有限公司 | High power MOS (Metal Oxide Semiconductor) field-effect transistor driving circuit |
| CN102969776A (en) * | 2012-12-03 | 2013-03-13 | 中国科学院电工研究所 | Wireless charging device of electronic automobile |
| CN203193492U (en) * | 2013-03-22 | 2013-09-11 | 奇瑞汽车股份有限公司 | Full-bridge driving circuit |
| EP2899847A1 (en) * | 2012-09-18 | 2015-07-29 | Kabushiki Kaisha Toyota Jidoshokki | Power receiving device and contactless power transmission device |
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2015
- 2015-09-30 CN CN201510650198.2A patent/CN105119393A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202513892U (en) * | 2012-03-27 | 2012-10-31 | 奇瑞汽车股份有限公司 | High power MOS (Metal Oxide Semiconductor) field-effect transistor driving circuit |
| EP2899847A1 (en) * | 2012-09-18 | 2015-07-29 | Kabushiki Kaisha Toyota Jidoshokki | Power receiving device and contactless power transmission device |
| CN102969776A (en) * | 2012-12-03 | 2013-03-13 | 中国科学院电工研究所 | Wireless charging device of electronic automobile |
| CN203193492U (en) * | 2013-03-22 | 2013-09-11 | 奇瑞汽车股份有限公司 | Full-bridge driving circuit |
Non-Patent Citations (1)
| Title |
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| 商和龙: "基于磁耦合谐振式无线电能传输技术的分析与设计", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406569A (en) * | 2020-11-05 | 2021-02-26 | 宁波赛耐比光电科技股份有限公司 | Control device and control method of wireless charging pile |
| CN113629832A (en) * | 2021-10-12 | 2021-11-09 | 景昱医疗器械(长沙)有限公司 | Charging control method of external charger and related device |
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Application publication date: 20151202 |
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