Caution on inveriers
Posted: Tue Nov 08, 2016 5:43 pm
Caution on inverters. Was reading on a rv forum about some problems people were having. There are 2 types of inverters. A TSW (true sine wave), and a MSW (modified sine wave). It seems that the MSW does not play well with modern digital electronics. People are losing their coffee makers (K-cup type) and other electronics. 
It was traced back to their inverter type. The TSW inverters have no problems. I know people here are using inverters for their fridges and other stuff. I figure to give you guys a heads up. Here's a quote from the thread. This is only a part of the thread.
Generic info:
Iinverters come in 2x2.sizes types
First division
True sine wave or Modified sine wave. True is by far the best.. In the old days Xantrex, who makes both, had a document on their web site titled things that may not work properly on MSW inverters.. It was a LONG list of things and growing faster than they could update it.. Even LED nightlights are on the list believe it or not.
TSW (Also known as Pure Sine Wave) the list was much shorter.. In fact it had only one entry (Common to both lists by the way)
EVERYTHING, even my most sensitive radio receiver works just fine with the TSW inverter on and working, ONLY thing that ever gave me a problem was a deffective to began with coffee pot.. It has since been replaced..twice. (First replacement wore out, I'm a coffee-holic don't you know)
Now, to the comments:
Some of the MSW inverters out there are el-cheapo pieces of .... Avoid them.
But when you get a True Sine Inverter with a decent 3-stage charger module... I've yet to see one of those that was crap. All were well designed. Of course with the influx of China products.. that may change some day soon, or not.
It was traced back to their inverter type. The TSW inverters have no problems. I know people here are using inverters for their fridges and other stuff. I figure to give you guys a heads up. Here's a quote from the thread. This is only a part of the thread. Generic info:
Iinverters come in 2x2.sizes types
First division
True sine wave or Modified sine wave. True is by far the best.. In the old days Xantrex, who makes both, had a document on their web site titled things that may not work properly on MSW inverters.. It was a LONG list of things and growing faster than they could update it.. Even LED nightlights are on the list believe it or not.
TSW (Also known as Pure Sine Wave) the list was much shorter.. In fact it had only one entry (Common to both lists by the way)
EVERYTHING, even my most sensitive radio receiver works just fine with the TSW inverter on and working, ONLY thing that ever gave me a problem was a deffective to began with coffee pot.. It has since been replaced..twice. (First replacement wore out, I'm a coffee-holic don't you know)
Now, to the comments:
Some of the MSW inverters out there are el-cheapo pieces of .... Avoid them.
But when you get a True Sine Inverter with a decent 3-stage charger module... I've yet to see one of those that was crap. All were well designed. Of course with the influx of China products.. that may change some day soon, or not.