【正文】 級(jí)的寶座和合適的，這時(shí)候應(yīng)該比的程序每次執(zhí)行周期更大。 ②在使用該系統(tǒng)將固有的信號(hào)是降低脈沖定時(shí)。類似的應(yīng)用程序有一半的電子電度表，去一項(xiàng)就在車輪和機(jī)械程度轉(zhuǎn)移到一個(gè)圓圈，用戶不需要電力， CPU 已經(jīng)知道所有的休眠時(shí)間。至于唯一的工具，展示，閱讀一些錯(cuò)誤， 1 秒，沒(méi)有出現(xiàn)意外的下一次測(cè)量的記憶，是可以承受的，屬于“通行證”的錯(cuò)誤。 1 原則和實(shí)施方法 復(fù)位定期無(wú)條件的法律 使用定時(shí)器，專用時(shí)鐘芯片或其它脈沖發(fā)生器，產(chǎn)生的信號(hào)復(fù)位，定期根據(jù)間隔設(shè)定。但是，由于它具有系統(tǒng)停止，程 序運(yùn)行等關(guān)鍵飛行的缺陷，使之限制在一個(gè)重要應(yīng)用的場(chǎng)合很多。 ② In being RAM it is the last state that e down, these RAM when restored. To the throne regularly can the zero clearing one。 Second, avoided happening that the dog controls the death circulation of the link to include guarding the gate. The external condition is restored to the throne the law Some arrival that export or measure is controlled by the outside. For instance, the hot form. of heating, rotate the pulse produced and calculate heat by hot water wheels, there is no hot water to flow, there is no heat to export, CPU only need in fact keep number value, do not need to count. Can imagine hot water wheels rotate when parking warm , CPU idle in will it be will it be one season autumn spring and summer, If let dormancy its , measure have water wheels pulse constantly, antiinterference ability can strengthen greatly. So, so long as link up the restoring to the throne of the pulse of the water wheels and CPU, the water wheels rotate a circle each time, CPU is restored to the throne once, hot form. can work normally , this is restored to the throne the law by the external condition . Similar application have half electron kilowatthour meter , go on one count just when the machinery degree wheels and transfers to a circle, users do not need the electricity, CPU has been knowing the dormancy all the time . The restoring to the throne in the interval not to be regular, but confirmed according to the external condition of this method. In some occasions, the time of the dormancy will be very long, very effective to improving antiinterference ability. 2 .The hardware realizes the main point Restored to the throne regularly unconditionally Generally have 2 kinds of methods. ① Use the timer or the specialpurpose clock chip to be restored to the throne. Fig1, in order to use the timing circuit that 555 circuit makes up。 畢業(yè)設(shè)計(jì) (論文 ) 英 文 翻 譯 題 目 基于單片機(jī)的數(shù)字 PWM控制器設(shè)計(jì)與應(yīng)用 — 硬件 學(xué) 院 專業(yè)及班級(jí) 姓 名 學(xué) 號(hào) 指 導(dǎo) 教 師 日 期 2020 年 6 月 9 日 Modeling, Simulation Due to a PWM Buck Type Switching Power and MCU Abstract: Introduce a kind of dormancy of using restore to the throne in the operation way and improve the antiinterference ability method of the onechip puter。 Can use the clock chips of X1126 ,etc too , wake CPU up with the alarm signal after setting up warning time. This kind of method is suitable when the long interval is made, can also follow the result of this operation ， determine to wake time up in alarm next time temporarily, very flexible and convenient. ② The signal of using the system to be inherent is as reducing the pulse regularly. Use 50Hz worker power make reducing after having a facelift frequently, already omit the timer, gathered the corresponding signal for the phase place which measured the electric current signal at the same time, as Fig. 2 shows. External conditions are restored to the throne Send external condition pulse to and is restored to the throne the end son after having a facelift. To that abovementioned water wheels or the ammeter spend a pulse produced, can use Schmitt39。 But electricity or manual to restore to the throne when pushing in conformity with zero clearing, is it embody to want when the software is worked outing at the beginning. If calculate time allows, try one39。一種技術(shù)在防干擾很多，例如設(shè)立了軟件陷阱，添加看守在狗的門(mén)電路等，可以使這個(gè)問(wèn)題比較好的解決，但仍然存在的問(wèn)題：①看門(mén)狗平均和出現(xiàn)的錯(cuò)誤已經(jīng)和運(yùn)行一段時(shí)間，這不是在某些情況下允許 。這種方法尤其適合用于測(cè)量?jī)x器。這種復(fù)位的把關(guān)，定期對(duì)狗的電路優(yōu)勢(shì)，首先， 改變等待進(jìn)入休眠狀態(tài)的時(shí)間，時(shí)間縮短，可能會(huì)受到干擾，二是避免死循環(huán)。在恢復(fù)到在間隔不進(jìn)行定期的寶座，但據(jù)證實(shí)了該方法的外部條件。使用 50 赫茲工人權(quán)力作出減少后煥然一新頻繁，已經(jīng)省略了定時(shí)器，該階段收集到的地方在同一時(shí)間測(cè)量的電流信號(hào)。這是復(fù)位循環(huán)，復(fù)位信號(hào)高級(jí)別采取空比非常重要的理性選擇。章降低可以減少并行連接的電容量。復(fù)位，并已開(kāi)始成為正常運(yùn)行的條件而采取的每一次復(fù)位運(yùn)行方式，它是無(wú)法區(qū)分，并有第一次電。 4 個(gè)輸出端的引腳，敘述在并行連接電容的治療方法，可以達(dá)到一種抗干擾的結(jié)果非常。達(dá)到正常工作狀態(tài)通過(guò)一定的運(yùn)動(dòng)命令后，如圖電力。 5S 是它是否實(shí)現(xiàn)計(jì)數(shù)一次復(fù)位，以拖延時(shí)間，復(fù)位，每次時(shí)間為 20ms。 結(jié)果： 結(jié)論反干擾是一種在電子設(shè)計(jì)的重要問(wèn)題，特別是在單芯片計(jì)算機(jī)的重要。在開(kāi)發(fā) 產(chǎn)品前，建模和仿真是分析電磁兼容性最有效的工具。本論文中的干擾源就是一 個(gè)高速的開(kāi)關(guān)電源。在圖 1 中也顯示了干擾源，路徑阻抗，差模電流以及負(fù)載阻抗。 各種各樣的干擾造成的高污染降低了電網(wǎng)電能的質(zhì)量。在歐美社會(huì)電磁兼容性法規(guī)的遵行是強(qiáng)制的，產(chǎn)品必須要有認(rèn)證的標(biāo)簽以表示達(dá)到法規(guī)的要求 [8]。 線路阻抗穩(wěn)定網(wǎng)絡(luò) 輸出的信號(hào)電平與頻率的變化就是干擾頻譜。 線路阻抗穩(wěn)定網(wǎng)絡(luò) 輸出的信號(hào)電平范圍在 10千赫茲到 30千赫茲 ,或者 150千赫茲到 30兆赫茲之間，這就是標(biāo)準(zhǔn)的電磁兼容性，并且它處在標(biāo)準(zhǔn)的限定范圍里。線路阻抗穩(wěn)定網(wǎng)絡(luò)應(yīng)具有以下幾個(gè)特點(diǎn)，以滿足測(cè)量條件 [7]。最好的解決干擾和提高電能質(zhì)量的方法就是遵守國(guó)家或國(guó)際電磁兼容性規(guī)定。負(fù)載和接地點(diǎn)的任意泄露都可以被認(rèn)為是電壓干擾源。在這項(xiàng)研究中只考慮傳導(dǎo)發(fā)射 設(shè)備，如電腦，接收器，放大器，工業(yè)控制器等。不同類型的電力電子轉(zhuǎn)換器都能夠被用來(lái)當(dāng)做電磁的干擾源。因此，只有保證它是還不 夠的單芯片電腦不會(huì)崩潰，研究如何減少風(fēng)險(xiǎn)的干擾，它可以自動(dòng)檢測(cè)錯(cuò)誤。恢復(fù)后的寶座，是否有電針有第一次已經(jīng)電力，是它是它是它是時(shí)候了 TS 檢測(cè)的發(fā)射功率，試圖去繼續(xù)下一次測(cè)量。 5，誰(shuí)保護(hù)的人開(kāi)始在電力法，它是發(fā)射功率 0 嘗試在第一?？煞譃?2 種情況：①對(duì)于簡(jiǎn)單的顯示儀上進(jìn)行測(cè)量，顯示送行后，復(fù)位，每次都復(fù)位之間因果關(guān)系的兩倍。給系統(tǒng)設(shè)置一個(gè)復(fù)位按鈕，即一個(gè)常見(jiàn)的手動(dòng)復(fù)位，這個(gè)按鈕是沒(méi)有加入和正在恢復(fù)到 最后的寶座，是在電容量并聯(lián)兩端對(duì)上述引腳接地。 （ 2）容錯(cuò) 選擇能力，使輸出端連接在并行故障寬容，妥善電容，可以實(shí)現(xiàn)容錯(cuò)控制。否則，目前的永遠(yuǎn)是傾斜的完整的行政程序的錯(cuò)誤。為此上述水輪或電表脈沖產(chǎn)生的花費(fèi)，可以使用施密特觸發(fā)器有煥然一新 。 2。例如，在炎熱的形式。這當(dāng)然是非?？斓?，但對(duì)于閱讀穩(wěn)定，每秒的數(shù)據(jù)只是提升 12 倍，有大量的 CPU 時(shí)間是等待使用。在測(cè)量和控制系統(tǒng)之間的長(zhǎng)周期③，單芯片計(jì)算機(jī)花等周邊硬件的大量時(shí)間，也將受到干擾時(shí)進(jìn)行，并等待秩序。t present forever the mistake of the intact executive program. ② For having application that time sequence controlled , after being restored to the throne each time , should check first that see the sign left last cycle , in