:介紹了一種基于數字信號處理器(DSP)的移相調頻(Phase-Shifted and Frequency-Varied,PSFV)PWM控制 逆變電源,給出了主電路拓撲結構,分析了其控制原理并設計了其控制程序流程圖。新穎的PSFV 控制能夠實現輸出 電壓90%的調整率,輸出電流波動小于單純移相調功PWM方式,并在輕載時保持連續。功率開關器件零電壓零電流 通斷(Zero-Voltage-Zero-Current Switching,ZVZCS)軟開關的實現,有利于進一步提高開關頻率和降低開關損耗。采用 高性能的專用DSP 芯片TMS320F2812 實現了系統的數字控制,滿足了系統控制的靈活性和實時性,減小了系統的 體積和生產成本。仿真分析和實驗結果證明了此控制模式的可行性與合理性。
標簽: Frequency-Varied Phase-Shifted DSP and
上傳時間: 2013-12-04
上傳用戶:kristycreasy
Jakes Model + Rayleigh Channel + Time Selective Fading + Frequency Selective Fading
標簽: Selective Fading Frequency Rayleigh
上傳時間: 2014-01-08
上傳用戶:dreamboy36
Analysis and Simulation of a Digital Mobile Channe Using Orthogonal Frequency Division Multiplexing
標簽: Multiplexing Simulation Orthogonal Frequency
上傳時間: 2016-05-13
上傳用戶: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. 輸入的數據以下降沿采樣,有效輸入范圍為上升沿前一點,輸入數據包括1 b0+有效數據+1 b0 Operating Rule: R_DATAUNCODE must be synchronous with R_ACTIVE
標簽: MD_Counter sub_module 128 generates
上傳時間: 2013-12-30
上傳用戶:Miyuki
Shi Naide company s frequency changer atv31 communication procedure,is a province project part, has entered the test, with everybody share.
標簽: communication frequency procedure province
上傳時間: 2016-05-28
上傳用戶:maizezhen
Frequency Modulation
標簽: Modulation Frequency
上傳時間: 2013-12-21
上傳用戶:moerwang
high frequency design:The eye diagram provides visual information that can be useful in the evaluation and troubleshooting of digital transmission systems
標簽: information frequency evaluati provides
上傳時間: 2016-05-30
上傳用戶:小寶愛考拉
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.
標簽: frequency function provides response
上傳時間: 2014-01-20
上傳用戶:qunquan
中國EPC標準草案(基本上是EPC C1G2的中文翻譯) 射頻識別協議- 第1類第2代UHF RFID 860兆赫-960兆赫通訊協議 EPC™ Radio-Frequency Identity Protocols Class-1 Generation-2 UHF RFID Protocol for Communications at 860 MHz – 960 MHz
標簽: EPC Radio-Frequency C1G2 8482
上傳時間: 2016-06-07
上傳用戶:上善若水
A New OFDM Synchronization Symbol for Carrier Frequency Offset Estimation.一個新的OFDM載波符號同步論文。
標簽: OFDM Synchronization Estimation Frequency
上傳時間: 2016-06-23
上傳用戶:as275944189