I asked some questions but decided to start a thread here. I looked into a few components. I was thinking:
1: use a dc dc converter to up voltage(if you started with one or two AA's) and then use that higher voltage to run a constant current regulation circuit.
But I was talking to my dad and he thinks dc dc converters can control current too so i looked into it and found this chip
http://maxim-ic.com/quick_view2.cfm/qv_pk/2337
It says it has current regulation and it has enough step up to run from almost anything and a low Vin. What do you guys think? I am still reading the data sheet so i will post again when i finish.
1: use a dc dc converter to up voltage(if you started with one or two AA's) and then use that higher voltage to run a constant current regulation circuit.
But I was talking to my dad and he thinks dc dc converters can control current too so i looked into it and found this chip
http://maxim-ic.com/quick_view2.cfm/qv_pk/2337
It says it has current regulation and it has enough step up to run from almost anything and a low Vin. What do you guys think? I am still reading the data sheet so i will post again when i finish.