12 volt stabiliser for TV

SimonV · #1 03-07-2011

I was reading a bit about how some electrical equipment like LED/LCD TV and DVD players don’t 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.

mitiempo · #2 03-07-2011

A Dc to Dc converter should work.

SimonV · #3 03-07-2011

Quote:

Originally Posted by mitiempo

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.

Hartley18 · #4 03-08-2011

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

JimsCAL · #5 03-08-2011

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.