Issue date: June RoHS EU Directive /9/EC PBB PBDE
(/6) MFeO M C C Mn-Zn Ni-Zn Mn-Zn MHz Ni-Zn MHz Mn-Zn to Ni-Zn to 8 J/kg K to W/m K. 6 /K to 7 N/m mm 9.8 7 N/m. N/m - / 6 / j_.fm
(/6). i =lim μa H. a. m Fig.. app L μapp= L L = H L = H 6. Bs Fig. Gauss=.mT B ΔB θr 7. Brs Fig. 8. Hc Fig. θi Bsat H ΔH Fig. B Br. e L μe= Σ πn A μe= Σ A Σ μa HCB H H EX HA=9A/m Fig. 9. tan L N A Σ A : H : : mm : mm : C= mm : Rm tanδ= ωl = Reff Rw ωl Rm : : L : Reff : Rw : tanδ= μ μ A - / 6 / j_.fm
(/6). tan / i tanδ = μ (μ ) : : tanδ tanδ = μe Initial permeability() = Curie temperature max..8 max.. max.. B tanδh ηb= μbm tan h : : Bm : T. Q. Q Qe ωl Qe= Reff Reff : : f rad/s L : Fig. 6. F 6 αf= T T 7. Tc Fig. 8. D μ μ D= (%) μ D : % : :. Q Qapp Q Qe Q Q Qe Qapp= Q. i α= i : T i : T T T - / 6 / j_.fm
(/6) 9. DF Fig. 6 μ μ DF= (t>t) t μ log t : t : t HA Δ/(%) 6 8 Conventional material Disaccommodation time(minutes) Fig.. AL 9 HnH L AL= N L: H N:. v m IEC Publication 6- JIS C 6- - - / 6 / j_.fm
(/6) HA HB HC HC i +% % 7±% ±% ±% tan / i 6 <.(khz) <(khz) <6.(kHz) <7.(kHz) <7.(kHz) ir 6 to C to + C to 7 C. to.. to. to.8 to.8. to.. to.. to.. to. [H=9A/m] Bs mt C 6 Br mt C 9 Hc A/m C 8..6 7.. Tc C > > > > B 6 mt <.8 <. <. <. DF 6 < < < < db kg/m.8.9.9.9 v m... HC HP DNW DN7 i ±% 9( C) ±% ±% 7±% tan / i 6 C, khz <8(kHz) <. <. <. ir 6 to C ±.% to + C. to. to 7 C ±.%. to. [H=9A/m] Bs mt C 8 9 Br mt C 6 Hc A/m C. 7. 6.. Tc C > > > > B 6 mt <.8 <. <.8 <. DF 6 < < < <. db kg/m.9.8.8. v m...6. - / 6 / j_.fm
(6/6) PC7 PC9 PC9 i ±% ±% ±% C 6 68 ( ) Pcv kw/m khz 6 C 7 sine wave C 9 [B=mT] C 6 6 [H=9A/m] Bs mt Br mt Hc A/m C 6 C 8 8 C C 9 8 C 8 7 8 6 C 9 7 C 6 6 6 C 6 6 C 9. 6 C 9 9 7. C 6 6. 6. C 7 7 6. Tc C > > > db kg/m.9.9.9 v m.. 6. HS7 HS HS i 7±% ±% ±% (min. at khz) (at khz) tan / i 6 (khz) (khz) (khz) [H=9A/m] Bs mt C 8 Br mt C 8 8 Hc A/m C 6 6 Tc C > > > db kg/m.9.9.9 v m... - / 6 / j_.fm
(7/6) i Mn-Zn tan / i Mn-Zn HC Initial permeability HC HA Relative loss factor tanδ/ 6 HC HC HA Frequency(kHz) Frequency(kHz) Initial permeability HC HC HB HP Relative loss factor tanδ/ 6 HC HC HB HP Frequency(kHz) Frequency(kHz) i tan / i HA 9 8 7 6 tanδ/ khz khz khz 8 6 9 8 7 6 tanδ/ - / 6 / j_.fm
(8/6) i HB HC HC 8 6 8 6 8 8 8 HP 9 8 7 6 8 PC7 PC9 PC9 7 7 7 6 6 6 8 6 8 6 8 8 6 - / 6 / j_.fm
(9/6) B-H HA HB HC Flux density B(mT) C C 8 C Test core: Toroidal OD=mm ID=9mm TH=8mm 8 6 Magnetic field H(A/m) Flux density B(mT) C 7 C Test core: Toroidal OD=6mm ID=mm TH=.mm 8 6 Magnetic field H(A/m) Flux density B(mT) C 6 C Test core: Toroidal OD=mm ID=9mm TH=8mm 8 6 Magnetic field H(A/m) HC Flux density B(mT) C 6 C Test core: Toroidal OD=mm ID=9mm TH=8mm Magnetic field H(A/m) HP Flux density B(mT) C C 7 C Test core: Toroidal OD=6mm ID=mm TH=.mm 8 6 Magnetic field H(A/m) PC7 PC9 PC9 Flux density B(mT) C 6 C 8 C C C Flux density B(mT) C 6 C C C Flux density B(mT) C 6 C C C 6 Magnetic field H(A/m) 6 Magnetic field H(A/m) 8 6 Magnetic field H(A/m) - / 6 / j_.fm
(/6) FDM HA HC HC HS7 PC7 PC9 T EP EPC EE EER P FDM PCM HP HB HA HC HC PC7 HS7 HS PC7 PC9 HS7 HS HS HP HA HB HC HC HA HC PC7 T EP EE EPC RM EER P T EP EPC EE EER RM T EE UU EE EI EER P - / 6 / j_.fm
(/6). - E - RME TDK - : Σ A =C (mm ) μe= L Σ π N A N I H= e (A/m) E B= π f N Ae 9 (mt) B= μe E I f Ve (mt) e : L : H N : Ts I : Ar.m.s. E : Vr.m.s. f : Hz H : A/m B : mt IEC Pub. : e mm : Ae mm : Ve mm - / 6 / j_.fm
(/6). - Fig. AL AL AL AL TDKAL HAP/-H ΔL/L(%) 6 7 8 A6 A A A A6 A A6 HAP6/6-H ΔL/L(%) 6 7 8 A6 A A A A6 A A6.... Fig. A6 A A6 A A. (mm) h A A6 h A6 A A6 A A A A6. (mm) h h - khz Fig. Apparent increment inductance ratio Le/L..9.8.7.6..... Le: Apparent inductance(h) L: True inductance(h) f: Test frequency(hz) f: Self-resonance frequency(hz) I = (Hz) π LC C: Distributed capacity (capacitance) (F)..... The ratio of test frequency and self-resonance frequency Fig. - / 6 / j_.fm
(/6) - --a. AL --b. DF DF ΔL L =DF μelog t t (t>t) HA P8/Z-B HA DF: 6 max. P8/Z e: 8 t t No. 89 8 9 8X 8 Y= Z= t t t t ΔL L = 6 8 log =..% : ΔL : t t L DF : e : i t : t : - / 6 / j_.fm
(/6) - AL Fig. AL HA P/9 AL-value(nH/N ) Temperature: C N IDC(AT) Fig. N IDC=DC magnetic field(at) N=number of turns IDC=DC current(a) AL AL B-H B-H B-H B-H - AL - AL Fig. AL AL 6AT Fig. 6A C - / 6 / j_.fm
(/6). - --a. --b. AW8 HV998 AW8 g HV998 g C 8 8 C : AW8 HV998 : C --b. --a Fig. Coilformer Core Adhesive Fig. : --c. Fig. --b.n/ mm 8 8 C - --a. Mounting accessory Core Adhesive Adhesive Core Fig. Fig.6 - / 6 / j_.fm
(6/6) - - 7 C 8 - / 6 / j_.fm