crazyGSM New Member Aug 11, 2007 #1 Hi, i'm using a solar cell and a AA batery (1.2V@0.9A) but i need a less 2.4V, how can easily convert this 1.2V@0.9A to 2.4V or more voltage? tks.
Hi, i'm using a solar cell and a AA batery (1.2V@0.9A) but i need a less 2.4V, how can easily convert this 1.2V@0.9A to 2.4V or more voltage? tks.
K kchriste New Member Forum Supporter Aug 12, 2007 #2 Do you need an output of 900ma or is 200ma @3V output Ok? If so, check out this thread: https://www.electro-tech-online.com/threads/boost-converter-ltc3401.31496/ Last edited: Aug 12, 2007
Do you need an output of 900ma or is 200ma @3V output Ok? If so, check out this thread: https://www.electro-tech-online.com/threads/boost-converter-ltc3401.31496/
M maor New Member Aug 13, 2007 #5 or he could just connect it to a volage multiplayer and connect a cap to it... Edit: sorry forgot to add a picture here: **broken link removed**
or he could just connect it to a volage multiplayer and connect a cap to it... Edit: sorry forgot to add a picture here: **broken link removed**
Nigel Goodwin Super Moderator Most Helpful Member Aug 13, 2007 #6 maor said: or he could just connect it to a volage multiplayer and connect a cap to it... Click to expand... Except they require AC to work!
maor said: or he could just connect it to a volage multiplayer and connect a cap to it... Click to expand... Except they require AC to work!
K kchriste New Member Forum Supporter Aug 13, 2007 #7 Nigel Goodwin said: Except they require AC to work! Click to expand... When the sun goes up and down he'll have a 0.00001Hz AC waveform. Now where are those 10000F caps I had laying around? Hero999's idea is the simplest though; add another battery and double the solar array voltage.
Nigel Goodwin said: Except they require AC to work! Click to expand... When the sun goes up and down he'll have a 0.00001Hz AC waveform. Now where are those 10000F caps I had laying around? Hero999's idea is the simplest though; add another battery and double the solar array voltage.
crazyGSM New Member Aug 13, 2007 #8 tks guys, i will study the 'boost converter' and other solutions to dicide the better.
M mneary New Member Aug 13, 2007 #9 The voltage doubler and "quadruppler" also require more than 1.3V pk-pk unless using special diodes.
crazyGSM New Member Aug 15, 2007 #10 after lose some time searching and study some solutions i will use this one based on a MAX1678 from MAXIM-IC. Schematic attached 1 Indutor 10uH and 2 capacitors(ceramic and tantalo) Attachments MAX1678-ESTA.gif 9 KB · Views: 179
after lose some time searching and study some solutions i will use this one based on a MAX1678 from MAXIM-IC. Schematic attached 1 Indutor 10uH and 2 capacitors(ceramic and tantalo)
justDIY Active Member Aug 15, 2007 #11 wonder what a joule thief would do with your solar cell's output **broken link removed**