With an aim at this problem , this paper suggests the modulation scheme with dc bus voltage ripple by using the front - end active power factor correct circuit based on the analysis of necessary conditions of producing acoustic resonances 針對(duì)這一現(xiàn)象,在分析產(chǎn)生聲諧振的必要條件的基礎(chǔ)上,重點(diǎn)提出了利用前級(jí)有源功率因數(shù)校正電路的直流母線脈動(dòng)電壓的調(diào)制方案。
The new system consists of a single - chip computer system ( at89c51 + psd311 ) and alow power consumed analyzer by applying a new adc chip ads774 , and a dead - time correcting circuit is designed to correct the collecting time 本系統(tǒng)由單片微機(jī)系統(tǒng)( at89c51 + psd311 )組成多道緩存,由低功耗模數(shù)轉(zhuǎn)換器組成分析器,與微型計(jì)算機(jī)通過打印并行接口實(shí)現(xiàn)數(shù)據(jù)通訊,并含有死時(shí)間校正電路。
Abstract : the author puts forward a constant - current control system of diode rectifier with saturable reactor in electrolytic aluminum . the working principle of saturable reactor is depicted . also analyzed are the system configuration and features of system correct circuit 文摘:介紹了應(yīng)用于電解鋁的加飽和電抗器的二極管整流器的恒流控制系統(tǒng),簡述了飽和電抗器的工作原理,分述了系統(tǒng)構(gòu)成和系統(tǒng)校正電路的特點(diǎn)。