2112
Texas
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Geewizard wrote:I need to charge an electric dirt bike. Its charger is AC only and I will pay the extra for a pure sine wave inverter. I had a MSW inverter for my microwave and it really did not like the MSW.
My CPAP runs from 12VDC.
Thanks all. Why not just boost the DC with something like THIS? There is a lot of loss converting DC to AC then back to DC
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otrfun
On The Road
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Lwiddis wrote:Too risky to use a MSW on electronic equipment. Agree. MSW can can silently wreak havoc on some electronic devices. It's like using improper oil in an engine. At first everything seems fine . . .
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otrfun
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naturist wrote:I have a 2200 watt Giandel PSW inverter that works well. 3 year warranty, only 8-9 watts when idling. Lot of folks overlook parasitic/no-load/idling current specs when choosing an inverter. Some inverters with high parasitic current can discharge a battery in just 12-24 hours with no load.
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otrfun
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3 tons wrote:naturist wrote:8 gauge wire seems too small for the 500 amps draw of a 6,000 watt inverter. And yes, I think you lucked out not needing electric blankets. X 2 !! I always strive for 2% or less voltage drop under max load. At 2% I'd be limited to 5ft. of 4/0 cable with a 500a load. FWIW, 4/0 cable is nearly 13 times larger than an 8 gauge wire.
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Geewizard
E. Washington
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Joined: 08/25/2004
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2112 wrote:Geewizard wrote:I need to charge an electric dirt bike. Its charger is AC only and I will pay the extra for a pure sine wave inverter. I had a MSW inverter for my microwave and it really did not like the MSW.
My CPAP runs from 12VDC.
Thanks all. Why not just boost the DC with something like THIS? There is a lot of loss converting DC to AC then back to DC
That's an interesting product. Thanks, I'll look into it.
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jaycocreek
Idaho
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I have been looking for the same...It's hard to overlook the GoWise and the Kinverch (Potek)1000W,both under $150..
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jimh425
Western MT
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As far as wire size goes, that has to do with length as well. Without knowing how far the run is from the inverter to the battery, it’s hard to say what wire size is appropriate.
Pure vs Modified used to have a lot do with price, but as cheap as the PSW’s are, I can’t see a lot of reason to buy a MSW right now. That being said, I think some devices like a cell phone charger or voltage adapter on a TV probably won’t care since they just step down the voltage and convert AC to DC.
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Kayteg1
California > Nevada
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Geewizard wrote:2112 wrote:Geewizard wrote:I need to charge an electric dirt bike. Its charger is AC only and I will pay the extra for a pure sine wave inverter. I had a MSW inverter for my microwave and it really did not like the MSW.
My CPAP runs from 12VDC.
Thanks all. Why not just boost the DC with something like THIS? There is a lot of loss converting DC to AC then back to DC
That's an interesting product. Thanks, I'll look into it.
What do you think that thing is?
DC to DC chargers are inverters with converters in the same unit.
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2112
Texas
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Joined: 07/16/2011
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Kayteg1 wrote:Geewizard wrote:2112 wrote:Geewizard wrote:I need to charge an electric dirt bike. Its charger is AC only and I will pay the extra for a pure sine wave inverter. I had a MSW inverter for my microwave and it really did not like the MSW.
My CPAP runs from 12VDC.
Thanks all. Why not just boost the DC with something like THIS? There is a lot of loss converting DC to AC then back to DC
That's an interesting product. Thanks, I'll look into it.
What do you think that thing is?
DC to DC chargers are inverters with converters in the same unit. I think that thing generates 150kHz DC pulses and smoothes and regulates them to a higher DC output voltage very efficiently. It's a DC input switching power supply. Going through an inverter to create true AC, and then an AC to DC charger is an inefficient, but simple approach. Maybe 70% efficient at best.
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Kayteg1
California > Nevada
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2112 wrote:I think that thing generates 150kHz DC pulses and smoothes and regulates them to a higher DC output voltage very efficiently. It's a DC input switching power supply. Going through an inverter to create true AC, and then an AC to DC charger is an inefficient, but simple approach. Maybe 70% efficient at best.
So you are saying that generating modified wave and stepping up voltage is not making it inverter?
I tought I know something about electricity, but evidently not.
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