The logic design of sequence circuit of welding supply based on gal 的焊接電源時(shí)序電路設(shè)計(jì)
The method of optimization is classified into two categories : ( 1 ) combinational optimization method , which is the optimizational method of combinational circuit is directly used for the sequence circuit 優(yōu)化的方法大致可分為兩類: ( 1 )組合優(yōu)化方法,即將組合電路的優(yōu)化方法直接用于時(shí)序電路。
But circuitry net table which is synthesized by synthesizer is not necessarily achieve the demand of designer , so aim for the speed demand of destination , the sequence circuit which is synthesized demand speed optimization 但是由于綜合器綜合得到的電路網(wǎng)表不一定能達(dá)到設(shè)計(jì)者的設(shè)計(jì)要求,所以需針對給定的速度要求,對綜合得到的時(shí)序電路進(jìn)行速度優(yōu)化。
According to zero sequence voltage distribution from system zero sequence impedance to shunt reactor zero sequence in zero sequence circuit , the zero sequence voltage at the terminal of shunt reactor and the zero sequence compensating voltage at neutral are compared in the scheme 即根據(jù)零序網(wǎng)絡(luò)中零序電壓在系統(tǒng)零序阻抗和電抗器零序阻抗上的分布情況,通過直接比較電抗器首端零序電壓與補(bǔ)償?shù)诫娍蛊髂┒酥行渣c(diǎn)的零序補(bǔ)償電壓的幅值大小,來判別電抗器匝間故障。
Automatic water - measuring meter is the combinative production of traditional method and present cmos integration circuit technology . it consists of water - level sensor and mainframe circuit . on the basis of analyzing its application , this paper gives the design of mainframe circuit , including time circuit , time - sequence circuit , input - interface circuit , switch circuit and power circuit 本文在分析cmos集成電路應(yīng)用的基礎(chǔ)上,給出了自動(dòng)量水儀表主機(jī)電路的設(shè)計(jì),包括定時(shí)電路、時(shí)序電路、輸入接口電路、開關(guān)電路和電源電路的設(shè)計(jì);其次,對水位傳感器進(jìn)行了研究,分析了水位傳感器的工作原理、測量使用條件、動(dòng)態(tài)特性、靜態(tài)特性以及水位傳感器的率定、標(biāo)定方法。
Waveform simu1ation is done in combinat ion circuit and sequence circuit for val idat ing if the method of expressing waveform by hdl is practicabi1ity . at the same time , for improving the speed of waveform s imu1at ion , some key problems and used ari thmet ic appeared in waveform simulation are exp1ained in detai 1 為了進(jìn)一步地驗(yàn)證硬件描述語言表達(dá)波形方法的有效性,結(jié)合組合電路和時(shí)序電路進(jìn)行波形仿真,并對此過程中涉及的關(guān)鍵問題與相應(yīng)的算法進(jìn)行了詳細(xì)的論述。