輸出字周期 的英文怎麼說
中文拼音 [shūchūzìzhōuqī]
輸出字周期
英文
output-word cycle- 輸 : Ⅰ動詞1 （運輸; 運送） transport; convey 2 [書面語] （捐獻） contribute money; donate 3 （失敗） l...
- 字 : Ⅰ名詞1 （文字） character; word 2 （字音） pronunciation 3 （字體） form of a written or printed ...
- 周 : Ⅰ名詞1 （圈子; 周圍） circumference; periphery; circuit 2 （星期） week 3 [電學] （周波的簡稱） c...
- 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
- 輸出 : 1 （從內部送到外部） export 2 [電學] output; outcome; outlet; out fan; fanout; 輸出變壓器 output ...
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The periodic function is separated into the digital quantity. it has the high stability signal sweep frequency using the phase - lock link to carry on to the digital quantity reading, through d / a transformation, the appropriate filter may obtain the high stability signal output
摘要將周期函數離散成為分離的數字量，利用鎖相環產生高穩定度的信號掃描頻率對數字量進行讀取，經過d / a變換及恰當的濾波可以獲得高穩定度的信號輸出。This system is realized by cpld which can get rid of the disadvantages in one - time design including property liable to jamming, long sampling period, and poor working stability. its sampling period is up to 500ns at least and output delay is only 19. 5ns. a stable period of pulse coming out of quadruple - frequency differential circle belongs to it
完成了用vhdl硬體描述語言對全數字轉速位置測量子系統的設計，並用max ? plusii軟體進行了編譯和波形模擬，在cpld （ max7000 ）得到實現，該系統克服以往設計中存在的易受干擾、工作穩定性差、采樣周期太長等的缺點，輸出延時僅為19 . 5ns ，采樣最低周期可達到500ns ，且四倍頻微分電路獲得的脈沖周期穩定。According to the following design theory : the dsp calculates in real time and produces three phases spwm waves to control the on or off of the 6 igbts in ipm respectively. ipm then inverts the commutated single phase direct current ( insulated gate bipolar transistor ) into three phases alternating current. when modulated signals of spwm are changed, the on - off time of switches also changes, so as to the voltage and frequency of output signals
本文提出了一種基於dsp （數字信號處理器tms320f240 ）的通用的三相間接變頻電源系統，利用分段同步調製法和混合查表法，實時計算不同頻率下的采樣周期、電壓幅值、輸出脈寬，產生雙極性spwm波形，經驅動放大後用于ipm （ intelligentpowermodule ）中的絕緣柵雙極型晶體管柵級驅動，以控制電源的輸出電壓和頻率，實現變頻電源的智能數字控制。
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