Hi All
1st post so apologies that it is asking for advice!
I want to run a low power(>5w), mains (240vAC) powered tv tuner box off a car battery.
Rather than running a car power inverter up to 240VAC then back down it seems to make more sense to run it all off DC power.
I've opened it up and there's a smallish transformer which must have 2 outputs one at 12vDC and one at 5vDC.
I assume I can just supply 12v from the car to the part of the circuit that runs off 12v, but what is the easiest way of powering the 5v? A DC-DC converter?
In addition should i place any further fuses/filters in there, i dont want to set my car on fire....
Thanks in advance
John S