:介紹了一種基于數(shù)字信號(hào)處理器(DSP)的移相調(diào)頻(Phase-Shifted and Frequency-Varied,PSFV)PWM控制 逆變電源,給出了主電路拓?fù)浣Y(jié)構(gòu),分析了其控制原理并設(shè)計(jì)了其控制程序流程圖。新穎的PSFV 控制能夠?qū)崿F(xiàn)輸出 電壓90%的調(diào)整率,輸出電流波動(dòng)小于單純移相調(diào)功PWM方式,并在輕載時(shí)保持連續(xù)。功率開(kāi)關(guān)器件零電壓零電流 通斷(Zero-Voltage-Zero-Current Switching,ZVZCS)軟開(kāi)關(guān)的實(shí)現(xiàn),有利于進(jìn)一步提高開(kāi)關(guān)頻率和降低開(kāi)關(guān)損耗。采用 高性能的專(zhuān)用DSP 芯片TMS320F2812 實(shí)現(xiàn)了系統(tǒng)的數(shù)字控制,滿(mǎn)足了系統(tǒng)控制的靈活性和實(shí)時(shí)性,減小了系統(tǒng)的 體積和生產(chǎn)成本。仿真分析和實(shí)驗(yàn)結(jié)果證明了此控制模式的可行性與合理性。
標(biāo)簽: Frequency-Varied Phase-Shifted DSP and
上傳時(shí)間: 2013-12-04
上傳用戶(hù):kristycreasy
Jakes Model + Rayleigh Channel + Time Selective Fading + Frequency Selective Fading
標(biāo)簽: Selective Fading Frequency Rayleigh
上傳時(shí)間: 2014-01-08
上傳用戶(hù):dreamboy36
Analysis and Simulation of a Digital Mobile Channe Using Orthogonal Frequency Division Multiplexing
標(biāo)簽: Multiplexing Simulation Orthogonal Frequency
上傳時(shí)間: 2016-05-13
上傳用戶(hù):ainimao
The module includes three sub_module:FDivider128,generates the 1/128 frequency, MD_Counter8Zero, generates the flute when the posedge, MD_Counter8One,generates the flute when the negedge.The aim of the module is to generate the mended miller code to be the source of the MillerDecode. 輸入的數(shù)據(jù)以下降沿采樣,有效輸入范圍為上升沿前一點(diǎn),輸入數(shù)據(jù)包括1 b0+有效數(shù)據(jù)+1 b0 Operating Rule: R_DATAUNCODE must be synchronous with R_ACTIVE
標(biāo)簽: MD_Counter sub_module 128 generates
上傳時(shí)間: 2013-12-30
上傳用戶(hù):Miyuki
Shi Naide company s frequency changer atv31 communication procedure,is a province project part, has entered the test, with everybody share.
標(biāo)簽: communication frequency procedure province
上傳時(shí)間: 2016-05-28
上傳用戶(hù):maizezhen
Frequency Modulation
標(biāo)簽: Modulation Frequency
上傳時(shí)間: 2013-12-21
上傳用戶(hù):moerwang
high frequency design:The eye diagram provides visual information that can be useful in the evaluation and troubleshooting of digital transmission systems
標(biāo)簽: information frequency evaluati provides
上傳時(shí)間: 2016-05-30
上傳用戶(hù):小寶愛(ài)考拉
sfrmat is a Matlab function that provides a spatial frequency response* (SFR) from a digital image file containing a slanted-edge feature. The specific edge-gradient algorithm follows the intent of the standard ISO 12233, developed by Technical Committee ISI/TC 42, for resolution measurements for electronic still pictorial cameras.
標(biāo)簽: frequency function provides response
上傳時(shí)間: 2014-01-20
上傳用戶(hù):qunquan
中國(guó)EPC標(biāo)準(zhǔn)草案(基本上是EPC C1G2的中文翻譯) 射頻識(shí)別協(xié)議- 第1類(lèi)第2代UHF RFID 860兆赫-960兆赫通訊協(xié)議 EPC™ Radio-Frequency Identity Protocols Class-1 Generation-2 UHF RFID Protocol for Communications at 860 MHz – 960 MHz
標(biāo)簽: EPC Radio-Frequency C1G2 8482
上傳時(shí)間: 2016-06-07
上傳用戶(hù):上善若水
A New OFDM Synchronization Symbol for Carrier Frequency Offset Estimation.一個(gè)新的OFDM載波符號(hào)同步論文。
標(biāo)簽: OFDM Synchronization Estimation Frequency
上傳時(shí)間: 2016-06-23
上傳用戶(hù):as275944189
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