Converting 115V AC to DC without losing voltage

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leo17
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ok I am hooking a dc to ac inverter to a car battery then to a transformer that will give me 115vac then i need to convert it back to dc while still keeping the 115v but in DC how do i do this? If i use a rectifier will the current drop?
 
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Wouldn't a boost converter be more efficient? How much power do you need out of this?

Also, be careful of your measurement. If the 115 Vac is an RMS reading (which is most likely), rectifying it will give you 170-180 Vdc.