       塃偺儕僗僩偐傜 撪梕傪慖戰偟偰壓偝偄 仭慖傫偱偔偩偝偄 properties Magnetic Design Formulas Permeability vs Frequency Core Loss A,B Core Loss C,E Core Loss F,G E Cores Dimension Tolerance

 Toroids OD(mm) ID(mm) HT(mm) C03乣C06 亇0.3 亇0.3 亇0.3 C07乣C19 亇0.5 亇0.5 亇0.5 C21乣C33 亇0.6 亇0.6 亇0.6 C34乣C57 亇0.75 亇0.75 亇0.75 Magnetic Design Formulas Inductance Considerations where 丂丂L=inductance(Henries) 丂丂兪=core permeability 丂丂N=number of turns 丂丂Ae=core cross section(c噓) 丂丂Le=core magnetic path length(cm) where 丂丂Ln=inductance for N turns (兪H) 丂丂AL=nominal inductance (nH/N2) Voltage-Flux Density-Frequency (Faraday's Law) Where 丂丂Bmax=maximum flux density 丂丂Erms=equivalent rms voltage across coil 丂丂N=number of turns 丂丂A=core cross section(c噓) 丂丂f=frequency(herz) Ampere's Law where 丂丂H=magnetizing force 丂丂N=number of turns 丂丂I=peak current(amperes) 丂丂L=mean magnetic path(cm) where 丂丂兪=relative premeability 丂丂B=flux denxity(gausses) 丂丂H=magnetizing force(oersteds) Mean Magnetic Path Length OD=outside diameter of core(cm) ID=inside diameter of core(cm) HT=core height(cm) A=core cross section(c噓) l=mean magnetic path length(cm)       仧儊僯儏乕偼偙偪傜