DC to AC/AC to DC Setup with Converter - Toyota RAV4 Forums
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#1 (permalink) Old 06-27-2013, 06:01 PM
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DC to AC/AC to DC Setup with Converter

I want to use a 12V DC to AC (115AC-200W) converter to power various AC to DC charging adapters which were supplied with several my DC gadgets. This will save the purchase of a bunch of individual DC 12v socket adapters and also eliminate additional cables. So I ask the electronic geeks, if going from DC to AC and back again from AC to DC, does it create a problem? BTW, the max. 12 DC load I'll be using is 1.5 amps, also, the converter produces a square wave. I hope I explained this correctly. Thanks
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#2 (permalink) Old 06-27-2013, 06:36 PM
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No worries, it'll work fine. In fact that's how I often charge my Razr smartphone in my truck since the "home" charger is faster than the 12V one. Also use it for my laptop.

Depending on how low a voltage the inverter will operate on it might quit after the engine is off a awhile.

The square wave, often called a "modified sine wave" by the ad departments, is only an issue when operating some motor driven devices. What's interesting is that most battery backups for computers output a square wave when backing up.

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#3 (permalink) Old 06-29-2013, 07:19 PM
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I run both modified sine wave and pure sine wave UPS units and the only difference I can detect when running appliances on them is that iron core transformers and motors do not like the modified sine wave as much as pure sine, I am not sure if its possible to fix it, but most appliances use switchmode PSU's anyway

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