In School we buildt a buck converter unit (20MHZ). We buildt it, we tested it and it worked. The only problem is, that the coil gets extremely hot (over 100 degrees @ 3A DC current output) when we tested the buck converter. So we looked up the catalog we ordered them from to check if we used a wrong coil. But we checked and it was a coil for 5A. That is correct so that was not the mistake. Then we checked the catalog we orderder the coils from, and there it sais the coil is for 7.7A and has a saturating current of 1.7 A. Does anybody have experience with that problem? Is it a mistake or is it intentionally?
I appreciate any help and answers
PS: In the attachments there is a datasheet of the coil and a scematic of the power supply unit
I appreciate any help and answers
PS: In the attachments there is a datasheet of the coil and a scematic of the power supply unit
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