Hello all Just have a techniacl question. Over the passed 2 days I'm trying to think of a way to build a power suppyly for may magellan sportrak map(gps) which needs 3.8vdc-4.2vdc that will be converted from cars
12vdc. What is the best way to put that power supply togther ueseing easy to find. Thanks in adcance.
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Good luck Chris
Look up the LM317, that is an adjustable voltage regulator just made for YOU :-). Very simple circuit to do what you want, with a bit of ingenuity it should be able to fit it inside a generous cigarette holder plug.
-- Regards ........... Rheilly Phoull
adaptors which provide up to 1 amp at a wide selection of voltages and with an assortment of plug adaptors are very affordable.
You don't say what country you're in, but RS has various car lighter adapters with the regulator already in them, I'm pretty sure.
Good Luck! Rich
Did not have chance to read the post, but I found some time now. Thanks to all. This is a great solution opposed to buying a $199.00 cable from a store and I believe you answered many purple's question. Thanks again
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