400V5600UF电解电容-高压储能电容器-滤波铝电解电容-螺栓-深圳雅达康铝电解电容器厂家
However,inACcircuits,thedirectionofthecurrentchangeswithtime.Thecharginganddischargingprocessofcapacitorsistime-dependent,andatthistime,avaryingelectricfieldisformedbetweentheplates,andthiselectricfieldisafunctionofthechangewithtime.Infact,thecurrentpassesbetweencapacitorsintheformofanelectricfield.Thefunctionofcapacitors:coupling:thecapacitorsusedincouplingcircuitsarecalledcouplingcapacitors.Theyarewidelyusedinresistiveandcapacitivecoupledamplifiersandothercapacitivecouplingcircuitstoactasanalternatingcurrentbetweendirectcurrentanddirectcurrent[2].)