DC/DC converter education . . where?

hondochica wrote:
OK - the vast majority of electronic equip I have are all battery-power based: laptop, cell phone, bluetooth, tablet, cat-tracker, and portable battery pack. The most power-hungry being the laptop. And all come with AC/DC adapters. And, of course, they all have different size plugs! But I have this great battery bank with solar. And from my limited knowledge, converting dc to ac to dc is just incredibly wasteful - I've read upwards of a 40 percent loss of power. I want to power/recharge my electronics straight dc/dc. This should be possible and seemingly a better use of power. It doesn't seem like rocket science - though could be more complicated than I realize. I see dc/dc converters, modules, boosters, 'bucks' (whatever those are) etc.

Where can one go to get a reasonable education on dc/dc power conversion so I can figure out what to buy? I've spent a couple hours now on google and haven't found a good simple reliable source.

or - better yet - what could I use?

Thanks in advance

Kelly
01 Rialta
somewhere in sw az

For laptop PCs you simply buy a Universal 12V laptop power supply, plugs into 12V and is capable of supplying most if not all different laptop voltages.. Plugs DIRECTLY into a 12V Cig lighter power port.

Like THIS



Cellphones, Tablets, BT devices now days ALL tend to use a 5V "USB" port charger.. With those devices you simply buy a 12V cig to 5V USB charger and use a USB cable to connect them..

Looks like THIS



Make sure you get one that has at least 2.4A per port, modern devices will need this high current in order to charge as quick as the 120V wall plug they came with.

For any other rechargeable devices look around for 12V to what ever voltage they need type cig lighter power supplies..

Doing so will eliminate the wasted power of a inverter..