The short answer is yes – but only with specialized step-down inverters designed for bidirectional voltage conversion. This article explains how these devices work, their key applications in renewable energy and industrial systems, and why selecting the right model matters for. Then you can convert that to 48V with a non-regulated bus converter at a very high efficiency, and more importantly maintain power factor close to 1 on the motor. With a dumb rectifier into a cap you'll have decently high I2R losses since RMS current is higher than it needs to be. Check each product page for other buying options. These converters are stabilized, short-circuit proof and can operate with 200V DC input voltage. There are boost converters as PFCs that do 2kW, with 400v output, and 0v input when mains is at zero cross, so sure you can do a buck to go from 200v to 12v (or cascaded buck is better) at 2kw. There are three power transfer processes in the motorhome: from the battery-bank to the house (12VDC), from the chassis (12V-alternator) to the battery-bank (12VDC), and from the battery-bank (12VDC) to the chassis (12VDC) – i.
