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i want an High power LED constant current ckt? Answered

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steveastrouk (author)2013-01-04

Define "High" - higher than an amp or so, you need to design a switching supply, or buy it.

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iceng (author)steveastrouk2013-01-04

+1
I have an old TO3 LM317 that could pass 3 amps somewhere in my lab.
Nowadays 1.5  amps at 37 volts is all that is available .

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