Sat Nav Power at Home

[simongreiner]

Hi me again
(don't make a post for over a year and there I am two in one day)
I have just bought a Standard Horizon CP180i GPS I have ordered a spare power lead, what size AC/DC adapter should I buy? The tech details in the manuals say:-

Input Voltage 10 vdc - 35vdc unregulated
Input Current 0.8W
Power consumption 520MA max 12V
So I don't get the wrong rating and damage the set any advice most welcome.

Regards Simon (Pugwash)

 

[moody1]

12v regulated about 600mA. Is as stated.
Best ? Sort your lead to have a cigarette lighter plug on end and plug into an emergency power pack - the sort you get from Halfords etc. for starting your car when battery flat. This will give enough to play with the plotter and is rechargeable for various other uses.

 

[fireball]

Alternatively if you have an old PC you can use the powersupply from that - it has to be one with a physical on/off switch though ... (12v is the yellow cable that goes to the hard drives - black is the 0v) - I have one rigged up on my workbench to use for testing.

 

[William_H]

You probably have some old plug packs at home. You want a fairly big one producing 12v at more than .6 amp DC. (make sure it has DC output and make sure you have the right polarity.)
As I read your specifications it will draw 520ma at 12 volts input with a reduced current at higher voltages up to 35 volts in. This apparent contradiction is because it is a regulated switch mode supply in the sat nav which can run on a range of input voltages. It in effect sips the power from the source such that with a higher input voltage it sips less current than it has to at a lower input voltage.
good luck olewill