--- In [email protected], Chris Kantarjiev <c...@...> wrote: > > I'm interested in packing a 5V buck converter into a DE-9 shell, to take 12V > in and provide power to > the attached GPS - typically 60-80mA, but it would be nice to handle the > Nuvi's load of 400mA. > > Can anyone suggest a simple design or readily available unit? > > Thanks! > > 73 de chris K6DBG >
Simplest and cheapest I've found (and I bought everyone I could) Duracell makes a beautifully tiny cigarette lighter to USB charger adapter. 12V in, 5Vdc at up to 1A out. I've taken a couple apart now, one is mounted inside my OT2 (like I said very small switching supply) off the power control output which powers up and down my nuvi based on profile switching or remote commands. Picked them up for $6.99, I'm sure it must have been a pricing mistake (in my favour) Belkin makes a tiny one as well. http://www.reghardware.co.uk/2009/04/24/duracell_belkin_usb/ Garrett VE6RKY
