【正文】 ll be traveling fast, so despite the distance, it will not be like diving into the deep end of a pool. It will be like he is diving into the shallow end. Skydiver preps for the big jump When he jumps, he is expected to reach the speed of sound 690 mph (1,110 kph) in less than 40 seconds. Like hitting the top of the water, he will begin to slow as he approaches the more dense air closer to Earth. But this will not be enough to stop him pletely. If he goes too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes it39。 Have declared the end of the encounter that haven39。那些曾經(jīng)所謂的非做不可，只是青蔥年華里自己給自己注射的一支強(qiáng)心劑，或者說，是自以為是的精神寄托罷了。s time, your ideas are always special to clear. Want, want, line is clear, as if nothing could shake his. Also once seemed to be determined to do something, but more often is he backed out at last. Dislike his cowardice, finally found that there are a lot of love, there are a lot of miss, like shadow really have been doomed. Those who do, just green years oneself give oneself an arm injection, or is a selfrighteous spiritual. 一個人的時候，自己的想法總是特別地清晰。t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already can39。 The end of our life, and can meet many things really do? 而窮盡我們的一生，又能遇到多少事情是真正地非做不可？ During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more and more found that those things are optional。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it. 一字開頭的年齡已經(jīng)到了尾聲。s 21 win. Michel Platini, president of European football39。s antiracism taskforce, is in London for the Football Association39。t agree with the disciplinary action your employer has taken against you ? your employer dismisses you and you think that you have been dismissed unfairly. For more information about dismissal and unfair dismissal, see Dismissal. You can make a claim to an employment tribunal, even if you haven39。 圖 12 充電子程序結(jié)構(gòu)流程圖 電源子程序的設(shè)計 本太陽能手機(jī)充電器與傳統(tǒng)充電器相比，最大的優(yōu)點(diǎn)就是不僅能直接給電池充電，還能作為普通的直流電源使用，其中的 5V 直流輸出也可以直接給手機(jī)充電，或作為 MP3 等其他小電子設(shè)備的供電電源。 數(shù)據(jù)采集及模數(shù)轉(zhuǎn)換程序 數(shù)據(jù)采集主要由單片機(jī)控制 ADC0809 完成，程序分為數(shù)據(jù)初始化，發(fā)送啟動轉(zhuǎn)換命令，等待轉(zhuǎn)換結(jié)束，接收數(shù)據(jù)，處理并存入緩存，程序流程如圖 11 所示。 顯示子程序是怎么將顯示緩沖區(qū)中的數(shù)據(jù)變成相應(yīng)的字形碼呢 ?具體的方法是將每個數(shù)字的字形碼以 16 進(jìn)制數(shù)從小到大的次序依次存放在存儲器中的固定區(qū)域中，構(gòu)成顯示代碼表。 圖 10 按鍵子程序結(jié)構(gòu)流程圖 數(shù)碼管顯示子程序 開機(jī)時，初始化數(shù)碼管，通過串口將“ 0”的字形碼輸出使數(shù)碼管顯示“ O”。 按鍵采集程序 鍵盤子程序用于探測開關(guān) 、是否處在有效的開關(guān)狀態(tài)，以決定是否啟動系統(tǒng)運(yùn)轉(zhuǎn)。這些未知的值在單片機(jī)復(fù)位完成，正式運(yùn)行以后，會產(chǎn)生無法讓程序設(shè)計人員掌握的后果 ， 甚至?xí)斐上到y(tǒng)的損壞。 其功能是用來設(shè)置充電的相關(guān)參數(shù)：如預(yù)充電電流大小，正常充電電流大小，浮充電流大小和充電截止電壓等等。獨(dú)立按鍵的每個按鍵都單獨(dú)接到單片機(jī)的一個 I/O口上，獨(dú)立按鍵則通過判斷按鍵端口的電位即可識別按鍵操作；而矩陣鍵盤通過行列交叉按鍵編碼進(jìn)行識別。 液晶模塊接口部分 該液晶顯示模塊是 JM12864M2漢字圖形點(diǎn)陣液晶顯示模塊，可顯示漢字及圖形，內(nèi)置 8192個中文（ 16X16點(diǎn)陣）、 128個字符（ 8X16點(diǎn)陣）及 64X256點(diǎn)陣顯示 RAM（ GDRAM）。在這個時候，就需要電壓跟隨器來從中進(jìn)行緩沖。 電壓跟隨器部分 LM224 是低功耗四運(yùn)算放大器 ,內(nèi)部集成了 4 個運(yùn)算放大器，該器件具有功耗低、精度高等優(yōu)點(diǎn)。（ 4）Cuk 電路 —— 降壓或升壓斬波器，其輸出平均電壓 U0 大于或小于輸入電壓 Ui，極性相反，電容傳輸。 DC/DC變換是將固定的直流電壓變換成可變的直流電壓，也稱為直流斬波。 5. Q3， R23， Q4， R22， D7， L2， C20：構(gòu)成 BUCK 斬波降壓電路。引腳架鍍采用 100% 霧錫電鍍，可與標(biāo)準(zhǔn)無鉛 (Pb) 印刷電路板裝配流程兼容。銅線的粗細(xì)允許器件在可達(dá) 5 的過電流條件下運(yùn)行。通過將磁性信號靠近霍爾傳感器，實現(xiàn)器件精確度優(yōu)化。該器件封裝便于客戶輕松實施。 （ 9）支持 10 位分辨率并且最多 14 路通道的模數(shù)轉(zhuǎn)換器 ADC，提供可選擇的高精度的 ,。當(dāng)供電電壓 ，消耗的電流僅 。 （ 3） 高精度的內(nèi)部振蕩器，出廠時校準(zhǔn)為177。 通過單片機(jī)編程實現(xiàn)了充電過程的智能控制，而且大大簡化了硬件電路設(shè)計，由于單片機(jī)良好的可重用性，如果需要改變電路工作狀態(tài) 或電路參數(shù)，只需簡單的修改程序即可實現(xiàn)，從而使電路的升級改造變得簡單易行。 單片機(jī)最小系統(tǒng)部分 圖 3 本系統(tǒng)單片機(jī)主要完成的任務(wù)是控制數(shù)據(jù)的采集過程，并將采集到的數(shù)據(jù)經(jīng)過分析處理后生成 PWM脈寬調(diào)制信號控制開關(guān)管的導(dǎo)通與關(guān)斷，從而控制輸出大小。其輸出電壓 U=*(1+R6/R7)。（本設(shè)計采用太陽能對手機(jī)充電，目前太陽能電池的光電轉(zhuǎn)化效率不到 10%，所以應(yīng)該采取一切可能的措施降低系統(tǒng)的功耗）。 4%的誤差，還包括外部關(guān)斷電路和