手機(jī)無線充電系統(tǒng)設(shè)計(jì)

1.4萬字
自己的畢業(yè)設(shè)計(jì)，原創(chuàng)的，僅在本站獨(dú)家提交，推薦下載

摘要： 現(xiàn)今幾乎所有的電子設(shè)備，如手機(jī)，MP3和筆記本電腦等進(jìn)行充電的方式主要是一端連接交流電源,另一端連接便攜式電子設(shè)備充電電池的有線電能傳輸。這種方式有很多不利的地方,首先頻繁的插拔很容易損壞主板接口,另外不小心也可能帶來觸電的危險(xiǎn)。因此,非接觸式感應(yīng)充電器在上個(gè)世紀(jì)末期誕生,憑借其攜帶方便、成本低、無需布線等優(yōu)勢迅速受到各界關(guān)注。目前無線充電的技術(shù)已經(jīng)開始在手機(jī)中運(yùn)用。由于無線傳輸?shù)木嚯x越遠(yuǎn)，設(shè)備的耗能就越高。要實(shí)現(xiàn)遠(yuǎn)距離大功率的無線電磁轉(zhuǎn)換，設(shè)備的耗能較高。所以,實(shí)現(xiàn)無線充電的高效率能量傳輸,是無線充電器普及的首要問題。另一方面解決的問題是建立統(tǒng)一的標(biāo)準(zhǔn)，使不同型號的無線充電器與不同的電子產(chǎn)品之間能匹配,從而實(shí)現(xiàn)無線充電。
文中首先介紹了手機(jī)無線充電的特點(diǎn)、歷史、發(fā)展現(xiàn)狀及趨勢。并對無線充電硬件電路系統(tǒng)做了簡單的介紹。
其次，詳細(xì)闡述硬件電路的各個(gè)模塊的組成，包括電源控制系統(tǒng)、逆變電路、功率放大電路。分別詳細(xì)說明電路的組成及選取方案。
最后，在理論的基礎(chǔ)上設(shè)計(jì)了硬件電路系統(tǒng)。并進(jìn)行仿真及原理圖繪制。
關(guān)鍵字：無線充電 硬件電路

Design and analysis of mobile wireless charging system
Abstract： Nowadays almost all electronic devices such as mobile phones, MP3 players and laptops mainly recharged through the cable connecting the device and the adapte.It has a lot of limitations, first frequent plug and unplug will easily damage the main board interface, and it may have the risk of electric shock in extreme. Therefore, non-contact induction charger was born in the end of the last century, with the advantage of easy to carry, low cost and no wiring rapidly draw the attention from all walks of life. The current wireless charging technology has been used in the mobile phone. It has been known that the longer the distance the wireless transmission, the higher the energy consumption of the equipment. To achieve high power over a long distance in wireless electromagnetic conversion, there will be a high energy consumption of the equipment. So, realizing high efficiency of energy transmission, is a primary issue the popularization of the wireless charger. Besides, it need to build a unified standard to match all devices..
This paper first introduces the mobile wireless charging characteristics, history, present situation and development trend, and made simple introduction about the wireless charging system hardware circuit.
Second, detailed in this paper, introduces the hardware circuit of the components of the various modules, including power supply control system, inverter circuit, power amplifier circuit. Detailed circuit composition and selection scheme respectively.
Finally, on the basis of the theory the hardware circuit is designed. The circuits are simulated in Multisim. And schematic diagram of the system is drawn in Protel .
Key words：wireless charging hardware circuit