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Thread ID: 104324 2009-10-24 04:54:00 Electrical question prefect (6291) PC World Chat
Post ID Timestamp Content User
823635 2009-10-24 04:54:00 Have bought a 19"LCD tv for camper. It has a 230 vac in and 12 vdc out power supply rectifier I suppose.
I am worried about when the battery on the camper gets flat and the tv could get unstable votage.
Which of the 2 options should I use

1. Run power supply from inverter in bus when input volts gets down it squeals and if left shuts down.

2. Connect tv direct to on-board 12 vdc battery and monitor with voltmeter.

Thanks for any help.
prefect (6291)
823636 2009-10-24 10:33:00 Hmm

Could do either I guess. It would depend on what internal circuitry the LCD has. For instance, many products accept a voltage source from, say, 8-18V DC and simply regulate it to 5v or whatever with internal circuitry.

I would be inclined to connect it up straight to the battery and see how it goes, if it works then cool :)

But then I didn't pay $$$ for the TV... If it goes pop, ... :waughh::waughh::waughh:
forrest44 (754)
1