There is a (de facto?) color standard for painted toroids. (PS: Also another reason I ask, is that at my place, the ferrite cores are half the price of the iron powder cores.) But, are they also good for higher currents (like 5-6 A peak)? ![]() I'm guessing the ferrite toroids are great at low currents (0-100 mA) and low frequencies (<100 kHz, as I can get more inductance with fewer turns). Will this matter if the peak current through the inductor is limited? many more turns for the iron powder core. I have some toroids and an LCR meter, and the ferrite toroid needs only a few turns of wire to get a 1 mH inductor, vs. ![]() įrom searching on the Internet, the yellow white toroids seem to have a permeability of 75, and the ferrite has a permeability of 2300 or so. ![]() Most of the buck converters seem to use the yellow white iron powder toroids, like this. I'm planning on using the cores for buck converters (mostly 3 A at probably below 200 kHz).įerrite: (also available in 13 mm outer diameter) Will the ferrite toroids saturate at 5 A current? I'm wondering about the difference between small (13 mm outer diameter) ferrite and the yellow white iron powder toroids.
0 Comments
Leave a Reply. |