grizedale
Advanced Member level 3
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OK thanks, i will look into it.
Regarding ESR , i am not familiar with the term for LEDs.......for LEDs i am used to looking into "dynamic resistance"
I dont see how you can get ESR because it would change depending where you are on the I-V curve.
I dont have access to enough LEDs to be able to do representative testing on what you mention.
-The LED companies are the only ones who can do this, and they tell people not to parallel them.
I dont understand anyone who wants to take the risk of paralleling LEDs.......you have to design conservatively which is much more expensive.
If you parallel LEDs, you can often use a buck converter to drive them, but if you use series chains , you can use a buckboost or boost or sepic (or flyback etc etc)
.....these are all just as simple as bucks, so i cant see why any desire to parallel LEDs.
Regarding ESR , i am not familiar with the term for LEDs.......for LEDs i am used to looking into "dynamic resistance"
I dont see how you can get ESR because it would change depending where you are on the I-V curve.
I dont have access to enough LEDs to be able to do representative testing on what you mention.
-The LED companies are the only ones who can do this, and they tell people not to parallel them.
I dont understand anyone who wants to take the risk of paralleling LEDs.......you have to design conservatively which is much more expensive.
If you parallel LEDs, you can often use a buck converter to drive them, but if you use series chains , you can use a buckboost or boost or sepic (or flyback etc etc)
.....these are all just as simple as bucks, so i cant see why any desire to parallel LEDs.