pf power factor 中文意思是什麼
pf power factor
解釋
功率因素-
The input of traditional ac - dc converter is diode - capacitance combined circuit. it ? input current wave presents pulse shape, and the power factor ( pf ) on ac line side is low
傳統的ac ? dc開關變換器輸入端是二極體整流-濾波電容組合電路,其輸入電流波形呈脈沖狀,交流網側功率因數很低。 -
The power factor ( pf ) is the ratio of average power to apparent power
功率因數是有功功率與視在功率之比。 -
Active pfc techniques have been researched systematically and used widely in the recent twenty years because of high power factor ( pf ) and low total harmonic distortion ( thd )
有源pfc技術具有功率因數高和總諧波含量小等優點,在過去的二十年裡,得到了長足的發展和廣泛應用。
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