独立的电力供应电子行业以来已经存在。电源设计以跟上提高的效率和功率密度要求发生变化时，孤立的反馈是维持安全的关键。
Maxim>AppNotes>BATTERYMANAGEMENTPOWER-SUPPLYCIRCUITSKeywords:FeedbackIsolationAugmentsPower-SupplySafetyandPerformanceJan22,2001APPLICATIONNOTE664FeedbackIsolationAugmentsPower-SupplySafetyandPerformanceIsolatedpowersupplieshavebeenaroundsincethebeginningoftheelectronicsindustry.Aspower-supplydesignschangetokeeppacewithincreasedefficiencyandpower-densitydemands,isolatedfeedbackiscrucialtomaintainingsafety.Isolatedpowersuppliesnotonlyprotectusersfrompotentiallylethalvoltagesandcurrents,buttheyalsoprovideperformancebenefits.Isolatedsuppliespreserveinstrumentaccuracybyinterruptinggroundloops,andtheyeasilyprovidepositiveregulatedvoltagesfromanegativepowerbusw
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