【正文】 抖動”來提高DPWM的精度，精度達(dá)到 500ps。 西安理工大學(xué)本科生畢業(yè)設(shè)計(jì)（論文 ） 第 17 頁 數(shù)字抖 動的 FPGA實(shí)現(xiàn) 目前，主要是通過查表方式實(shí)現(xiàn)數(shù)字“抖動”。之前沒有了解過到底什么是高頻化的脈沖變換器，以及 FPGA，通過這幾個(gè)月學(xué)習(xí)，首先了解到了高頻脈沖電源的國內(nèi)外研究現(xiàn)狀，動態(tài)和研究熱點(diǎn)的問題，并且設(shè)計(jì)出一種倍頻電路，該電路是基于交錯(cuò)并聯(lián)控制為基礎(chǔ)，輸出電壓頻率為每一個(gè)控制管頻率的 2倍，大大的降低了每一個(gè)管子的負(fù)荷。這次實(shí) 踐是對自己大學(xué)四年所學(xué)的一次大檢閱，使我明白自己知識還很淺薄，雖然馬上要畢業(yè)了，但是自己的求學(xué)之路還很長，以后更應(yīng)該在工作中學(xué)習(xí)，努力使自己 成為一個(gè)可以參與工作能獨(dú)立完成設(shè)計(jì)的人。 西安理工大學(xué)本科生畢業(yè)設(shè)計(jì)（論文 ） 第 25 頁 第 6 章 參考文獻(xiàn) 【 1】 陳寶磊 ,沈錦飛，沈冬輝，倍頻式功率合成大功率感應(yīng)加熱電源的研究 [J] 江南大學(xué) 【 2】 白永江，馮維一，楊旭，王兆安，高精度數(shù)字 PWM 的實(shí)現(xiàn) —— 數(shù)字 “抖動” [J] 西安交通大學(xué) 【 3】 黃智偉， FPGA 系統(tǒng)設(shè)計(jì)與實(shí)踐 [M] 電子工業(yè)出版社 【 4】 王傳新， FPGA 設(shè)計(jì)基礎(chǔ) [M] 高等教育出版社 【 5】陳維，固態(tài)高頻感應(yīng)加熱電源的研究 [D] 【 6】徐偉，數(shù)控線切割機(jī)床高頻脈沖電源的研究 [D] 【 7】黃武，基于 TMS320F28335 的大功率 高頻雙向脈沖電鍍電源的研究 [D] 【 8】周熙，郭健民，李文宏， 高精度混合型 DPWM 設(shè)計(jì)和實(shí)現(xiàn) [J] 復(fù) 旦大學(xué)專用集成電路國家重點(diǎn)實(shí)驗(yàn)室 , 上海 【 9】高艷霞，徐妍萍，郭水保，新型混合 DPWM 方法及其實(shí)現(xiàn) [J] 上海 大學(xué) 【 10】郅銀周，張彥軍，洪應(yīng)平， 基于 FPGA 的脈沖變換器測試系統(tǒng)設(shè)計(jì) [J] 中北大學(xué)電子測試技術(shù)國家重點(diǎn)實(shí)驗(yàn)室 【 11】 Sun Lichong, Zhu Zheng, Yan Na,and Min Hao， Multimode highresolution DPWM for RF classD amplifiers[J] Fudan 田 晨：大功率脈沖變換器高頻化技術(shù)研究 第 26 頁 University,Shanghai China 【 12】 Ma Xiao,Luo Ping,Zhang Ye and Zhen Shaowei， A HighResolution Hybrid DPWM Circuit for Digitally Controlled Buck Converter in m CMOS Process[J] State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science 請您刪除一下內(nèi)容， O(∩ _∩ )O 謝謝?。?！ Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the sevenday Chinese請您刪除一下內(nèi)容， O(∩ _∩ )O謝謝?。?！ National Day holiday could be the best occasion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may bee more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you travel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and acmodation prices, with the possibility that there will be no rooms available. It is also mon that you39。s Day! in shops, hotels and restaurants. But few young women will mark the festival with their boyfriends, or take part in traditional activities to pray for cleverness. A largescale of exhibition on the Silk Road opened to the public in the National Museum on Thursday. The exhibition displays more than 400 treasures from Shaanxi province, Gansu province and 14 other regions. It is largest scale exhibition that shows the history of the Silk Road in recent years. As APEC is going on in Beijing, the exhibit aims to show the world this brilliant section of history. The Silk Road is a series of trade and cultural transmission routes that were central to cultural interaction through regions of the Asian continent. It connected the West and East by linking traders, merchants, pilgrims, monks, soldiers, nomads, and urban dwellers from China and India to the Mediterranean Sea during various periods of time. I met my dear hubby in 2022 the second year I was in my school and it was the first year when he came here. We became colleagues. And there was nothing special happening during that year. He was just a kind and humble brother graduated from the same college as me. But we did not know each other till he became my colleague and his office desk was just in front of me. There was only a glass between us. So actually we could see each other when we both look up. But it is not the main reason that really draws us close. How we bee close to each other was something seems quite natural. We went out to play badminton with other colleagues and we sometimes chatted for a while. He is a man of few words but somehow sometimes will say something really humorous. Then one day, to my great surprise, I found a pot of beautiful flower on my desk. It was just the flower I had talked about with my colleague the other day, and I thought it was her who put the flower there. But the truth is not. It was the humble guy sitting in front of me. He just simply said ,”well, I caught sight of this flower and thought that it’s beautiful and you may like it”. I wonder why I was moved because of these simple words and present. Maybe it is the sincerity and the true self that impress me. I thanked him and some colleagues walked past my desk would appreciate the beautiful flower and they noticed that something romance happened there. Then later on, there were some little surprises once in a while. Once, there was something wrong with my drawer and I had plained about it unconsciously. And he fixed it for me. Then the other day, he placed several pink diamond roses beside the flower with a piece of paper saying” I love you more than I can say! Diamond stands for marriage, rose stand for love. I hope you are mine, bee my wife. You are the only girl who I really want to spend the rest of my life to stand by.” Although there were some grammar errors but I got what he meant. He meant so clear and so direct. And actually, I accepted him some days earlier.。s largest virgin forest, and known for its spring and ecological environment, Arxan is marveled at by many tourists as the purest land on earth. You cannot miss out the Autumn of Arxan. It is definitely the best with brightlycolored scenery full of emotions. Autumn in the northern part of the country es earlier than the South. A September rain followed by the