L lebevti Member Dec 27, 2011 #1 ...and all it was was a simple buck converter, with a IC chip used as the switch and control circuit it steps down the DC voltage in your cigarette lighter to 5 V i had to break open the black case with a hammer boy they squeeze a lot of components onto a small PCB...probably not more than 2 square inches of area there was also a 1.5 A fuse in there that would connect to the cigarette lighter end
...and all it was was a simple buck converter, with a IC chip used as the switch and control circuit it steps down the DC voltage in your cigarette lighter to 5 V i had to break open the black case with a hammer boy they squeeze a lot of components onto a small PCB...probably not more than 2 square inches of area there was also a 1.5 A fuse in there that would connect to the cigarette lighter end
D Diver300 Well-Known Member Most Helpful Member Dec 27, 2011 #2 On many of those the output voltage is set by a potential divider, and it is quite easy to alter the ratio if you want a different voltage.
On many of those the output voltage is set by a potential divider, and it is quite easy to alter the ratio if you want a different voltage.