jdeas
Well Known Member
Argument for restraint
OK,
Here is a set of examples showing what could be used for a high-efficiency current source. The chip (LT1510) is ~$6 and would fit the bill for powering a string of LEDs.
See http://electronicdesign.com/Articles/Index.cfm?AD=1&ArticleID=3231
For an example circuit.
Not too bad on the parts count but what is more interesting is the layout.
http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1037,C1078,C1089,P1032,D1463
This is the data sheet. Take a good look at "Layout Considerations".
If anyone wants to roll their own this shows what your getting into. Not impossible but you would want your buddy with the CAD program to make a PCB and that's not real practical for under 20 or so boards!
While not difficult for the EE's on this site, is it really needed? Unless you are having major electrical problems in your aircraft will the position lights level be a real issue? And if that is true.. can anyone really expect your lights to be at regulation level during your emergency landing
OK,
Here is a set of examples showing what could be used for a high-efficiency current source. The chip (LT1510) is ~$6 and would fit the bill for powering a string of LEDs.
See http://electronicdesign.com/Articles/Index.cfm?AD=1&ArticleID=3231
For an example circuit.
Not too bad on the parts count but what is more interesting is the layout.
http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1037,C1078,C1089,P1032,D1463
This is the data sheet. Take a good look at "Layout Considerations".
If anyone wants to roll their own this shows what your getting into. Not impossible but you would want your buddy with the CAD program to make a PCB and that's not real practical for under 20 or so boards!
While not difficult for the EE's on this site, is it really needed? Unless you are having major electrical problems in your aircraft will the position lights level be a real issue? And if that is true.. can anyone really expect your lights to be at regulation level during your emergency landing