Thermosetting SB578F/AU4V110X mndandanda wotsogolera solenoid valavu koyilo

Osayenera kunyalanyazidwa parasitic inductance, inductance coil, electromagnetic coil

1. Zimayambitsidwa kuti inductance ya parasitic yomwe siingakhoze kunyalanyazidwa ndi theka la inductance ya parasitic yomwe iyenera kuganiziridwa mu PCB mwa kukonzekera.

Pokonzekera mabwalo othamanga kwambiri a digito, kuwonongeka komwe kumachitika chifukwa cha parasitic inductance ya vias nthawi zambiri kumakhala kokulirapo kuposa komwe kumayambitsidwa ndi parasitic capacitance. Zotsatira zake za parasitic inductance zidzafooketsa chothandizira cha bypass capacitor ndi kusefa kwa dongosolo lonse lamagetsi.

2. Titha kugwiritsa ntchito njira iyi kuti tiwerengere kuchuluka kwa parasitic inductance ya kudzera:

L=5.08h[Mu(4h/d)+1] pamene l amatanthauza kulowetsa kwa via, h ndi utali wa via, ndipo d ndi m'mimba mwake wa dzenje lapakati. Zitha kuwoneka kuchokera pamapangidwewo kuti kukula kwa bowo kulibe mphamvu pa inductance, koma kutalika kwa dzenje kumakhudza kwambiri inductance. Pogwiritsa ntchito chitsanzo pamwambapa, inductance ya dzenje ikhoza kuwerengedwa monga: l = 5.08 x 0.050 [mu (4x0.050 / 0.010) + 1] = 1.015 NH. Ngati nthawi yokweza chizindikiro ndi 1nS, cholepheretsa chofanana ndi XL=TL/T10-90=3.190. Mtundu uwu wa impedance sungathe kunyalanyazidwa pakakhala ma frequency apamwamba. M'pofunika kwambiri kuzindikira kuti kulambalala capacitor ayenera kudutsa vias awiri pamene kulumikiza mphamvu wosanjikiza ndi stratum, kotero parasitic inductance wa vias adzachuluka exponentially.

Zifukwa za kutentha kwa inductance

Yambitsani ndi kufotokoza chifukwa cha kutentha kwa inductance.

1. Waya ndi woonda kwambiri, zomwe zidzachititsa kuti kukana kwa inductor kukhala kwakukulu kwambiri. Pansi pa chikhalidwe chakuti mtengo wamakono ndi wotsimikizika, ndi zachilendo kuti pole itenthe.

2, inductance ndi yodzaza, ndipo malungo amtunduwu ndiwofala kwambiri.

3. Pali mphamvu yaikulu yogwedezeka pamapeto onse a inductor, kotero pachimake chimasinthidwa kukhala chachikulu, chomwe chingachepetse chiwerengero cha kutembenuka ndikufupikitsa kutalika kwa mzere. Patsogolo kutembenuka, yaing'ono ripple panopa, yaing'ono maginito imfa, makamaka kukana kutentha.