一個適用單相、三相供電的開關電源的設計

摘要：由于條件限制，有些地方（場地）可能只有單相電源，沒有三相電源供電。文章提出了一個既適用單相，又適用三相供電的開關電源的設計思想，并給出了這種雙制式電源供電的開關電源主要電路參數的計算。 敘詞：適用單相、三相電源 開關電源 Abstract：Because of condition limit,there is only a single-phase power system on a number of occasions but there is no three-phase one.For that reason,this paper porposes a design idea on the switching power supply applied to single-phase and three=phase power systems.In the meantime,the circuit configuration of the switching power supply,which can be supplied with double system,and the calculation of its critical parameters are presented. Keyword：Switching power supply Single-phase Power System Three-Phase Power System