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#1
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posted to rec.boats.electronics
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Can you have multiple inverters powering your entertainment gear,
without causing problems. I am thinking of having a flat panel TV powered by one inverter, and the DVD/PC on another, and my Raymarine E-80 connected to the TV as well. I am concerned that the ground between the devices won't be a the same voltage, and I will cause a current to run through the ground wire, and damage equipment. I am hoping I am wrong, and there will be no issue. Anyone have experience here ? |
#2
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posted to rec.boats.electronics
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"b393capt" wrote in
oups.com: I am concerned that the ground between the devices won't be a the same voltage, and I will cause a current to run through the ground wire, and damage equipment. I am hoping I am wrong, and there will be no issue. That's possible, I suppose, but the big problem will be "ground loops" in the audio and video. We even get ground loops at home hooked to the same power company. The inverter results will be much worse. Instead of this damnable hum you can't seem to get rid of even though there are battery cable-sized ground wires hooking everything together on the AC line powered stereo, yours will be a sharper buzzing sound that will just drive you crazy. With more than one inverter, there's bound to be two, or more, buzzing noises. The hum in the picture is horizontal areas of light and dark that crawl up or down the screen, depending on how far your inverter is off frequency from the TV scan freq. Just go get the right inverter and quit trying to screw up the system. Are you sure you have enough batteries to power something that needs more than one inverter?! |
#3
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posted to rec.boats.electronics
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There are plenty of inverters that are "stackable"...
Trace and Outback are two of them. There is absolutely no problem with this if done rtght.. Larry mentioned the scan rate and frequency, in a good inverter this can be finely adjusted to eliminate the problem..My question is why do you want to do this? The only viable reason would be if your demand exceeds the current capacity of a single inverter..Larry also makes the most important fact in that a cheap inverter will give inferior performance.. You need a true sine wave inverter for the best performance of your equipment,,,..and you will most likely always have some"noise",but that can be minimized. The Outback units are extremely rugged, and waterproof, very well suited to the marine environment....You get what you pay for..an old codger I used to work for had a saying: "Save a buck...works like f*ck..." He was right. Here's a link that may help you out: http://www.google.com/url?sa=t&ct=re...r02mKsq 3-zuw Regards, markvictor http://groups.google.com/group/badboatbiz?hl=en. |
#4
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posted to rec.boats.electronics
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Oh, and I forgot to mention, I have run several flat screens directly
from dc on boats with no problem..yet. One alternate to consider..On a customers boat, I got a 19' flat screen computer monitor and installed it in the wheelhouse of his Nordhaven 48...To it I have connected a PC, a Wesmar HD 800 sonar, avideo camera in both the engine room and on the aft deck, a dvd player, and a vcr...For around a hundred bucks or so you can buy the up-converter necessary to connect the video equipment to the monitor,and it includes a TV tuner, infrared remote, and stereo audio out for connection to an amp or stereo... Regards, markvictor |
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