Electronics > Projects, Designs, and Technical Stuff
LM2576 Adj 'switcher'
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Davy:
Eureka...!
I wound another inductor on the same core with 36 turns of 20SWG, this giving about 84uH, the o/p voltage increased by about 350mV BUT on load only drops funnily enough by about 300mV, not 1.1V as before this is with 13.5V input. Maybe a little more reduction in inductance could be had.... this is good enough for me and doubt the LEDs would complain providing I don't drive them 'hell for leather'.

Thanks to MagicSmoker for putting me in the ball park. I appreciate all your inputs.

Dave
hesam.moshiri:
if you want to build an adjustable converter using LM2576, you can build this


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