TV with 14v brick, okay at 12.x volts?
I'm looking at a Samsung TV which has a 14v power supply brick. I would like to run the TV directly off the DC side of the RV. I expect it would be pretty good in the range of converter voltages of 1...
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wa8yxm wrote:
I will say this, your 12.x is normally 13.6 which is in the range of 14+/-10% and thus it shoudl work fine most of the time.
It will likely work all the time (12 is 14+/- less than 20 perecent, Most electronics can take a 20 percent "off" power supply, KEY WORD, Most.)
:h
A 12V lead acid battery fully charged and at rest is nominally 12.8V, not 13.6V.
13.6V typically is when you are RUNNING an auto engine and the alternator is attempting to CHARGE the battery. Actually in reality your auto alternator is SUPPOSED to be set to 13.8V or slightly higher.
Typically in a RV your house battery when at rest will have 12.8V, when the converter is charging it will be 13.2V up to 14.4 depending on what "mode" the charger is in.
"Most" HOME electronics DO NOT appreciate voltage swings of +/- 20% and will let out the smoke packets if you attempt to use a voltage source that far out of range. 20% of 14V is 2.8V which would be 11.2-16.8 which will be way out of the typical HOME type appliance.
If you were talking about purpose made "auto" 12V items like car stereos or even Ham radio equipment you would be with in the realm of possibility. Those devices ARE designed around the auto electrical system.
One must understand that HOME electronic equipment which uses those "brick" power supplies are designed with TIGHTER TOLERANCES since the manufacturer is BASING the entire design around what in a sense is a computer switching power supply. By the way computer MBs are very finicky when it comes to voltage range, the acceptable voltage range on the 12V line is 11.9-12.1.
