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Hitachi OD172S-11模块
Hitachi OD172S-11模块
Hitachi OD172S-11模块
Hitachi OD172S-11模块变换
Hitachi OD172S-11AC/DC变换是将交流变换为直流,其功率流向可以是双向的,功率流由电源流向负载的称为“整流”,功率流由负载返回电源的称为“有源逆变”。AC/DC变换器输入为50/60Hz的交流电,因必·经整流、滤波,因此体积相对较大的滤波电容器是必·可·的,同时因遇到·全标准(如UL、CCEE等)及EMC指令的限制(如IEC、、FCC、CSA),交流输入侧·须加EMC滤波及使用符合·全标准的元件,这样就限制AC/DC电源体积的小型化,另外,由于内部的高频、高压、大电流开关动作,使得解决EMC电磁兼容问题难度加大,也就对内部高密度安装电路设计提出了很高的要求,由于同样的原因,高电压、大电流开关使得电源工作损耗增大,限制了AC/DC变换器模块化的进程,因此·须采用电源系统优化设计方法才能使其工作效率达到·定的满意程度。
Hitachi OD172S-11AC/DC变换按电路的接线方式可分为,半波电路、全波电路。按电源相数可分为,单相、三相、多相。按电路工作象限又可分为一象限、二象限、三象限、四象限。
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