恒功率源

率。使用负荷监测IC(MAX4210)，它感官负载电流和独立，负载电压和乘以相应的信号连同内部模拟乘法器。应用到逆变误差放大器的输入输出的乘数，可以应用设置恒功率级别控制电压。Maxim>AppNotes>AmplifierandComparatorCircuitsPower-SupplyCircuitsKeywords:constantpower,controlloop,linearvoltageregulator,high-sidepower/currentmonitorOct27,2009APPLICATIONNOTE4470Constant-PowerSourceBy:DaveSackettAbstract:Thiscircuitdeliversconstantpowertoavaryingload.Usingaload-monitoringIC(MAX4210),itsensestheloadcurrentandloadvoltageindependently,andmultipliesthecorrespondingsignalstogetherwithaninternalanalogmultiplier.Applyingthemultiplieroutputtotheinvertinginputofanerroramplifierletsyouapplyacontrolvoltagetosettheconstant-powerlevel.ThisdesignideaappearedintheDecember15,2006issueofElectronicDesignmagazine.Supplyingafixedandaccuratepowerlevelto