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Go Back   SailNet Community > General Interest Forums > Gear & Maintenance
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  #1  
Old 03-07-2011
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12 volt stabiliser for TV

I was reading a bit about how some electrical equipment like LED/LCD TV and DVD players donít always like any power above 12V. Batteries can produce more than 12v when fully charged or whilst being charged (wind/solar). So I was wondering if there was something simple to keep the voltage at 12 volt and allow up to 5 Amps like a diode/capacitor or something that could be put in the cable before the TV to stop the surge which could be anywhere as high as 14.? Volts, without resorting to one of the bulky commercial units.
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Old 03-07-2011
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A Dc to Dc converter should work.
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Old 03-07-2011
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Quote:
Originally Posted by mitiempo View Post
A Dc to Dc converter should work.
They tend to be quite large and are normaly switchable between 12v through to 24v, this would be deadly to the electrics if it was acidently moved to a higher voltage. What I would like is a simple way of keeping 12v at 12v. I thought about using 2x 6v risistors in peralel, but that may be wrong thinking.
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Last edited by SimonV; 03-07-2011 at 10:47 PM. Reason: next to each other
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Old 03-08-2011
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Try this one, Simon. 13.2V output - exactly what the gear will be expecting.

Powerbox Australia - Power Supply

http://www.powerbox.com.au/pdf/PBDD.pdf

The smallest one (7Amp peak) is about the size of a cigarette packet.

This gear is very high quality, so it's not as cheap as some, but will do exactly what you want.

Cheers,
Cameron
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Old 03-08-2011
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Anything that comes with a cigarette lighter plug and designed for use in a car should be fine as is. Those that use a 12V power brick and then connected to the boat's 12V power are a different story. Some may be fine, others not. You could always just use an inverter and the units 120 VAC power supply.
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