DC power supply

专利名称：DC power supply发明人：池田 雄一申请号：JP2018142027申请日：20180730公开号：JP2020022213A公开日：20200206

专利附图：

摘要：Problem to be solved: to reduce the switching loss in a DC power supply using ahysteresis type converter. Solution: the control hand section 20 executes a low loadmode which reduces the upper limit value difference which is the difference between theupper and lower values as the input current increases, and the mode of the high load

mode in which the difference between the upper and lower limits is fixed.The controlhand section 20 then executes a low load mode when the effective input current is lessthan a predetermined switching threshold and performs a high load mode when theeffective input current is above the switching threshold.The control unit 20 controls theIGBT 12 so as to increase the difference between the upper and lower limits when theeffective input current changes in a small load mode, i.e., in the low load mode in whichthe effective input current is less than the switching threshold.Diagram

申请人：株式会社富士通ゼネラル

地址：神奈川県川崎市高津区末長３丁目３番１７号

国籍：JP

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