Originally Posted by Bill
Quote:
Another way to approach the problem is simply to bring 110VAC from the inverter directly to the refrig compartment. Unplug the refrig from the TM's AC power system, and plug it (and nothing else) into inverter power. This means that
a) you don't need to remove the fuse in the tow vehicle
b) with the refrig running from AC power, the 12-volt load in the TM is nearly zero, which means that the tow vehicle will, in fact, charge the TM battery. As Ray points out, it is not a very hefty charge rate, but if you start with a fully charged battery, it is more than enough.
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I like your approach which is much simpler. Also the inverter output waveform issue should be minimal. MODIFIED SINE WAVE should be fine for refrigerator. I am not so sure the TM Converter would enjoy MODIFIED SINE WAVE. There are PURE SINE WAVE inverters for $300-400. What do you think about installing the inverter right in the TM? Maybe behind the refrigerator.