if you can into schematics and datasheets, look up this regulator chip, or similar: AP34063
otherwise, ready made circuits can be found by googling. one easy way is to use a Blackberry car adapter (charger) with takes in 10-25V and puts out 5V. $3 at the thrift store. other brands may work, but are not specifically rated for 25V.
>>928027 It's not 'milliampere-hours', it's just milliamps, and it's not '0.28mA', that would be 280 *microamps*, it's 280 *milliamps*, or 0.28A.
Now, then.. what you need is a step-down (or 'buck') switching power supply. Since you need 5V (not 'around' 5V, it's *5V*) you can get a module that does this off-the-shelf -- which in your case is a good thing, since I don't have much faith at this point in your being able to actually construct one.
>>928027 ..oh, and since you're confused about it: 'milliampere-hours' is a unit of measure you'd use for a *battery*, not a solar panel of any kind; it's a unit of measure with regards to *storage capacity*.
>>928027 Break it apart. Find out what the output of the (separate) solar panel(s) is/are. Go from there. There are no solar panels that directly output 18V, so it is probably in series to increase voltage. Typical output is about 0.5V per piece. This is the best way to do it without losing efficiency by using adapters etc.
Thread replies: 6 Thread images: 1
Thread DB ID: 403379
All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.
This is a 4chan archive - all of the shown content originated from that site. This means that 4Archive shows their content, archived. If you need information for a Poster - contact them.
If a post contains personal/copyrighted/illegal content, then use the post's [Report] link! If a post is not removed within 24h contact me at email@example.com with the post's information.