12v Converter question
I bought a TV that has an external power supply. It says 19.6v on the little box. Is there anyway to go from 12v to 19.6v without going through an inverter? Thanks Linc
Forum Discussion
wa8yxm wrote:
19.6 times 0.2 is about 3.9 so you should be able to go down to around 15 volts or perhaps a bit less before performance on that TV suffers.. Most House systems are 13.6 That's a bit low.. but I'd try a direct feed. It will not hurt the TV and it **MIGHT** work depending on how much wiggle room they built in.
The external power supply for the TV almost certainly isn't an unregulated transformer, but rather a switching power supply (likely one with an international input voltage range of 100-240V, but that's not important here). As such, it ought to have an output voltage regulation far better than +/- 20%.
Whether or not the television requires that input voltage or not is another question altogether, of course, but I suspect it would have a lot of trouble running on a 13.x V system (if the converter is running) and even more on 12.x V (if running off of battery power alone).
