Sinau jumlah induktansi induktansi modus umum . Jalanake Produsèn inductance (ahli diwenehake: inductor sumbu , induktor radial inductor ) kanggo sinau:
Mode diferensial saiki: Sepasang sinyal kanthi ukuran sing padha lan arah ngelawan ing pasangan garis sinyal diferensial, biasane digunakake ing sirkuit
Saiki, kanggo garis sinyal, yaiku arus sing mili ing antarane garis sinyal lan lemah sinyal.
Mode saiki: Sepasang sinyal (utawa swara) kanthi ukuran lan arah sing padha ing sepasang garis sinyal diferensial. Ing sirkuit,
Umume, swara ing lemah ditularake kanthi mode saiki, mula uga diarani gangguan mode umum.
Ana akeh cara kanggo nyegah gangguan mode umum. Saliyane nyuda gangguan mode umum ing sumber, induktansi mode umum biasane digunakake kanggo nyaring gangguan mode umum, yaiku kanggo mblokir gangguan mode-umum saka sirkuit target. Yaitu, mode keselak ing seri ing seri sirkuit. Tujuane kanggo nambah impedansi sirkuit mode umum saengga arus modus umum dikonsumsi lan diblokir (dibayangke) dening keselak, saengga bisa nahan swara mode umum ing sirkuit.
Prinsip keselak utawa induktor modus umum
Yen sepasang gulungan kobongan ing arah sing padha ing dering magnetik sawetara bahan magnetik, fluks magnetik digawe ing kumparan amarga induksi elektromagnetik nalika arus bolak-balik nembus kumparan. Kanggo sinyal mode diferensial, fluks magnetik sing digawe dering magnetik padha ukuran lan arah ngelawan, lan kalorone bisa mbatalake, mula impedansi mode diferensial sing digawe cincin magnetik cilik banget. Kanggo sinyal modus umum, fluks magnetik sing digawe padha gedene lan arah, lan kalorone ditumpukake kanggo nggawe impedansi mode umum sing gedhe saka cincin magnet. Karakteristik iki nggawe induktansi mode umum ora pati pengaruh marang sinyal mode diferensial lan luwih apik kinerja nyaring swara bising mode umum.
(1) Nalika mode diferensial saiki ngliwati koil mode umum, garis medan magnetik ing arah sing ngelawan lan medan magnet sing diinduksi dadi lemah. Bisa dideleng saka arah garis medan magnet ing gambar ing ngisor iki, panah garis solid nggambarake arah arus lan garis putus-putus nggambarake arah medan magnet
(2) Saiki mode umum ngliwati koil modus umum, lan medan magnetik dikuatake amarga arah sing padha karo garis medan magnet. Bisa dideleng saka arah garis medan magnet ing gambar ing ngisor iki, panah garis solid nggambarake arah arus lan garis putus-putus nggambarake arah medan magnet
Induktansi koil modus umum utawa diarani koefisien induksi mandiri, kita ngerti manawa induktansi ngasilake kemampuan medan magnet, mode umum utawa koil induktor modus umum, nalika arus modus umum mili liwat kumparan, amarga garis-garis medan magnetik ing arah sing padha, tanpa dipikirake ing induktansi bocor, fluks magnetik, intine yaiku induktansi bebarengan, ing ngisor garis medan magnetik koil liwat garis magnetik koil biru, abang lan biru uga liwat koil abang, induksi saben liyane.
From the point of view of inductance, inductance is multiplied, magnetic chain represents the total magnetic flux, the common-mode inductor, when magnetic flux is doubled, circle number has not changed, the current didn't also did not change, so mean increased inductance for 2 times, means that the equivalent permeability into 2 times.
Kepiye permeabilitas sing padha bisa tikel? Saka formula induktansi ing ngisor iki, amarga jumlah puteran N ora owah, sirkuit magnetik lan area penampang inti magnetik ditemtokake kanthi ukuran fisik inti magnetik, mula ora ana pangowahan. Siji-sijine alasane yaiku permeabilitas U ditambah tikel, saengga bisa ngasilake fluks magnetik
Common-mode inductor in common mode, therefore, when an electric current passes through, work under the mutual inductance model, under the effect of mutual inductance, the equivalent inductance is cost increase, therefore common mode impedance will be multiplied, and the common mode signal has good filtering effect, also is the common mode signal with large impedance block, don't let it pass the common-mode inductor, also is not to let this signal transmission to the next level of the circuit, the following is the inductive reactance ZL.
Know common-mode inductor under the mode of common mode inductance, is the main clue to know mutual inductance, magnetic components of all, no matter what name as long as mastering the form of the change of the magnetic field, magnetic field changes through the phenomenon to essence, also easy to understand, moreover we always grasp the magnetic field lines, it is our understanding the visual form of the magnetic field, consider whether the same side or different name or concept of the mutual inductance phenomenon or magnetic field, we are drawing the lines of magnetic force to realize their - master "magnet winding method" is explained before.
Wektu kiriman: Dec-16-2020