Yakakwira Inductance Sendust Core Sendust Block Core Yakakwira Permeability

Sendust ndeye magineti simbi poda yakagadzirwa naHakaru Masumoto paTohoku Imperial University muSendai, Japan, munenge muna 1936 seimwe nzira yepermalloy mune inductor mafomu enharembozha.Sendust kuumbwa kunowanzo 85% iron, 9% silicon uye 6% aluminium.Hupfu hunopinzwa mumacores kugadzira inductors.Sendust cores ine yakakwira magineti permeability (kusvika 140 000), kurasikirwa kwakaderera, kuderera kwekumanikidza (5 A/m) yakanaka kugadzikana tembiricha uye saturation flux density inosvika 1 T.
Nekuda kwekuumbwa kwayo kwemakemikari uye crystallographic chimiro Sendust inoratidza panguva imwe chete zero magnetostriction uye zero magnetocrystalline anisotropy inogara K1.
Sendust yakaoma kupfuura permalloy, uye nekudaro inobatsira mune abrasive kupfeka application senge magineti yekurekodha misoro.

Maitiro ekusarudza kuti ndeapi marudzi ehupfu cores ane akagoverwa emhepo magapu ekushandisa mukugadzira magetsi inductors uye anodzipa.

Nhanganyaya

Iri gwara rekushandisa rinopa mamwe mirairo yakajairika yesarudzo yakakwana yehupfu hwepakati zvinhu (MPP, Sendust, Kool Mu®, High Flux kana Iron Powder) kune akasiyana inductor, kukachidzwa uye kusefa dhizaini zvinodiwa.Kusarudzwa kweimwe mhando yezvinhu pane imwe kazhinji kunoenderana nezvinotevera:
1) DC Bias Yazvino kuburikidza neinductor
2) Ambient Operating Temperature uye inogamuchirwa tembiricha inokwira.Ambient tembiricha inopfuura 100 deg C ikozvino yakajairika.
3) Saizi yekumanikidza uye nzira dzekuisa (kuburikidza negomba kana pamusoro pegomo)
4) Mariro: iron Powder ndiyo yakachipa uye MPP, yakanyanya kuwanda.
5) Kugadzikana kwemagetsi kwepakati nekuchinja kwekushisa
6) Kuwanikwa kwezvinhu zvakakosha.Semuenzaniso, Micrometals #26 uye #52 anonyanya kuwanikwa kubva kustock.Anonyanya kuwanikwa MPP cores ndeye 125 permeability zvinhu, nezvimwe.

Nekuda kwekufambira mberi kwazvino muferromagnetic tekinoroji, sarudzo yakakura yezvakakosha zvekugadzira dhizaini yave kuwanikwa.Kune switch mode magetsi ekushandisa (SMPS), inductors, chokes uye mafirita, akajairika zvinhu MPP (molypermalloy poda), High Flux, Sendust, uye Iron Powder cores.Chimwe nechimwe chepamusoro pesimba remagetsi zvinhu zvine maitiro ega akakodzera kune akasiyana maapplication.
Vagadziri vakajairika veiyo pamusoro poda cores ndeiyi:
1) Micrometals yesimbi poda cores.Chete Micrometals cores inoedzwa kugadzikana kwekupisa uye CWS inongoshandisa Micrometals cores mune zvese magadzirirwo ayo.
2) Magnetics Inc, Arnold Engineering, CSC, uye T/T Electronics yeMPP, Sendust (Kool Mu®), uye High Flux cores.
3) TDK, Tokin, Toho yeSendust Cores

Nepoda cores, yakakwirira permeability zvinhu zvinogayiwa kana kuti atomize kuita hupfu.Iyo permeability yemacores ichaenderana nehukuru hwechikamu uye density yezvinhu zvakakwirira zvinogoneka.Kugadziriswa kweiyo particle size uye density yechinhu ichi kunotungamira kune kwakasiyana permeability yemacores.Iyo diki saizi yechikamu, inodzika iyo permeability uye zviri nani DC bias maitiro, asi nemutengo wepamusoro.Iyo yega poda zvimedu zvinodzivirirwa kubva kune imwe, zvichibvumira macores kuti ave nemagariro akagovanisa mweya mapeji ekuchengetedza simba mune inductor.

Iyi yakagoverwa yemhepo gap pfuma inovimbisa kuti simba rinochengetwa zvakaenzana kuburikidza nepakati.Izvi zvinoita kuti musimboti uve nekugadzikana kuri nani kwekushisa.Maferi akatsemuka kana akatsemurwa anochengetedza simba mugomba remhepo rakagara asi nekuwanda kwemvura inoyerera ichikonzera kurasika kwenzvimbo uye kukanganisa.Mune zvimwe zviitiko, kurasikirwa uku nekuda kwegap renzvimbo kunogona kudarika kurasikirwa kwepakati pachayo.Nekuda kwenzvimbo yenzvimbo yegomba remhepo mune yakavharwa ferrite core, hairatidzi kugadzikana kwakanaka kwekushisa.

Optimum musimboti kusarudzwa ndeyekusarudza izvo zvakanakisa zvinhu zvine kushoma kukanganisika uchisangana nezvinangwa zvese zvekugadzira.Kana mutengo uri iwo chinhu chikuru, iron poda ndiyo sarudzo.Kana kugadzikana kwetembiricha iriyo inonyanya kunetseka, MPP ndiyo ichave sarudzo yekutanga.Unhu hworudzi rumwe norumwe rwemashoko anokurukurwa muchidimbu.
Ese marudzi matatu ehupfu cores anogona kutengwa pa-line mudiki vhoriyamu kubva kustock (yekukurumidza kutumirwa) pane inotevera webhusaiti: www.cwsbytemark.com.Yakawedzera tekinoroji data yezvinhu izvi inogona kuwanikwa mukati www.bytemark.com

MPP (Molypermalloy Powder Cores)
Kuumbwa: Mo-Ni-Fe

MPP cores ine yakaderera zvachose yepakati kurasikirwa uye yakanyanya kugadzikana tembiricha.Kazhinji, inductance variance iri pasi pe1% kusvika 140 deg C. MPP cores inowanikwa mukutanga permeabilities (µi) ye26, 60, 125, 160, 173, 200, uye 550. MPP inopa yakakwirira resistivity, yakaderera hysteresis uye eddy ikozvino. kurasikirwa, uye yakanaka kwazvo inductance kugadzikana pasi peDC kusarura uye AC mamiriro.Pasi pe AC excitation, inductance shanduko iri pasi pe2% (yakanyatsogadzikana) yeµi=125 cores paAC flux density inopfuura 2000 gauss.Iyo haizare zviri nyore pakakwirira DC magineti kana DC bias mamiriro. Iyo saturation flux density yeMPP musimboti ingangoita 8000 gauss (800 mT)

Kuenzaniswa nezvimwe zvinhu, MPP cores ndiyo inodhura zvakanyanya, asi yepamusoro mhando maererano nekurasikirwa kwepakati uye kugadzikana.Pakushandisa kunosanganisira DC bias condition, shandisa zvinotevera zvinongedzo.Kuti uwane isingasviki 20% kudzikira kwekutanga permeability pasi peDC bias mamiriro: - Ye µi = 60 cores, max.DC bias <50 oersted;µi=125, max.DC bias <30 oersted;µi=160, max.DC bias <20 oersted.

Unique Features

1.Lowest core kurasikirwa pakati pezvinhu zvose zvehupfu.Yakaderera hysteristics kurasikirwa kunokonzera kuderera kwechiratidzo kukanganisa uye kuderera kwasara kurasikirwa.
2.Best kugadzikana kwekushisa.Pasi pe1%.
3. Iyo yakanyanya saturation flux density ndeye 8000 gauss (0.8 tesla)
4.Inductance kushivirira: + - 8%.(3% kubva pa500Hz kusvika pa200Khz)
5.Inonyanya kushandiswa mune aerospace, mauto, mishonga uye yakakwirira yekushisa kushandiswa.
6.Most inowanikwa zviri nyore sekuenzaniswa nepamusoro flux uye sendust.
Applications :
Yakakwira Q mafirita, kurodha makoiri, resonant maseketi, RFI mafirita ema frequency ari pasi pe300 kHz, transformers, chokes, differential mode mafirita, uye DC akarerekera kuburitsa mafirita.

High Flux Cores
Kuumbwa: Ni-Fe

High Flux cores inoumbwa neakakombwa 50% nickel uye 50% iron alloy poda.Iyo yepasi zvinhu yakafanana neyakajairika nickel iron lamination mune tepi maronda cores.Yakakwira Flux cores ine yakakwirira simba rekuchengetedza simba, uye yakakwira saturation flux density.Yavo saturation flux density inosvika zviuru gumi nezvishanu gauss (1500 mT), zvakangofanana nesimbi yehupfu cores.Yakakwira Flux cores inopa kuderera kwepakati kurasikirwa kupfuura Sendust.Nekudaro, High Flux's musimboti kurasikirwa kwakanyanya kukwira kupfuura MPP cores.High Flux cores inonyanya kushandiswa mukushandisa uko iyo DC bias ikozvino yakakwira.Nekudaro, haiwanikwe nyore seMPP kana Sendust, uye inogumira mukusarudza kwayo kwekugonesa kana saizi kusarudzwa.
Applications :

1) MuMutsetse Noise mafirita uko inductor inofanirwa kutsigira hombe AC ​​voltages pasina saturation.

2) Kushandura Regulators Inductors kubata yakawanda yeDC bias ikozvino

3) Pulse Transformers uye Flyback Transformers sezvo yasara flux density iri pedyo ne zero gauss.Iine saturation flux density ye15K gauss, iyo inogona kushandiswa flux density (kubva zero kusvika 15K gauss) inokodzera unipolar drive application senge pulse transformer uye flyback transformer.

Kool Mu® / SENDUST
Kuumbwa: Al-Si-Fe

Sendust cores inozivikanwawo seKool Mu® kubva kuMagnetics Inc., Sendust zvinhu zvakatanga kushandiswa muJapan munzvimbo inonzi Sendai, uye yainzi 'guruva' core, nekudaro zita rekuti Sendust.Kazhinji, sendust cores ine kurasikirwa kwakanyanya kwakaderera pane iron poda cores, asi ine yakakwira yakakosha kurasikirwa kupfuura MPP cores.Kuenzaniswa nehupfu hwesimbi, sendust core kurasikirwa inogona kunge yakaderera se40% kusvika 50% yeIron poda core kurasikirwa.Sendust cores inoratidzawo yakaderera magnetostriction coefficient, uye saka yakakodzera kune maapplication anoda yakaderera inonzwika ruzha.Sendust cores ine saturation flux density ye10,000 gauss iyo yakaderera pane Iron powder.Nekudaro, sendust inopa yakakwira simba rekuchengetedza kupfuura MPP kana gapped ferrites.

Sendust cores inowanikwa mukutanga permeabilities (Ui) ye60 uye 125. Sendust core inopa shanduko shoma mukukwanisa kana inductance (pasi pe3% ye ui = 125) pasi pe AC excitation.Kugadzikana kwekushisa kwakanaka kwazvo pakakwirira.Inductance shanduko iri pasi pe3% kubva kune ambient kusvika ku125 deg C. Zvisinei, sezvo kutonhora kunoderera kusvika 65 deg C, inductance yayo inoderera ne15% ye µi = 125.Uyewo cherechedza kuti sezvo tembiricha inowedzera, sendust inoratidza kuderera kwe inductance maringe nekuwedzera inductance kune zvimwe zvese zvehupfu.Iyi inogona kunge iri sarudzo yakanaka yekubhadharisa tembiricha, kana ichishandiswa nezvimwe zvinhu mumubatanidzwa wepakati chimiro.

Sendust cores inodhura zvishoma pane MPPs kana yakakwira fluxes, asi inodhura zvishoma pane iron poda cores.Pakushandisa kunosanganisira DC bias mamiriro, shandisa zvinotevera zvinongedzo.Kuti uwane pasi pe20% kuderera kwekutanga permeability pasi peDC bias mamiriro:

Kune µi = 60 cores, max.DC bias <40 oersted;µi=125, max.DC bias <15 oersted.

Unique Features

1.Lower core kurasikirwa kupfuura Iron Powder.
2.Low magnetostriction coefficient, yakaderera inonzwika ruzha.
3.Good kugadzikana kwekushisa.Pasi pe4% kubva -15 'C kusvika 125'C
4.Maximum flux density: 10,000 gauss (1.0 tesla)
5.Inductance kushivirira: ± 8%.
Applications:
1.Switching regulators kana Power Inductors mu SMPS
2.Fly-back uye Pulse transformers (inductors)
3.In-Line ruzha mafirita
4.Swing chokes
5.Phase control circuits (yakaderera inonzwika ruzha) chiedza dimmers, motokari yemagetsi ekudzivirira michina.
Iron Powder
Kuumbwa: Fe

Iron poda ndiyo inodhura zvakanyanya pane ese ehupfu cores.Iyo inopa inodhura inoshanda dhizaini imwe nzira kune MPP, High Flux kana Sendust cores.Kurasikirwa kwayo kwepamusoro pakati pezvinhu zvese zvehupfu zvinogona kubhadharwa nekushandisa hombe saizi cores.Mune akawanda maapplication, uko nzvimbo uye yakakwirira tembiricha inokwira musimbi poda cores haina kukosha kana ichienzaniswa nekuchengetedza mumitengo, iron poda cores inopa yakanyanya mhinduro.Iron Powder cores inowanikwa mumakirasi maviri: carbonyl iron uye hydrogen yakaderedzwa iron.Carbonyl iron ine yakaderera musimboti kurasikirwa uye inoratidza yakakwira Q yeRF zvikumbiro.

Iron Powder cores anowanikwa mupermeabilities kubva pa1 kusvika pa100. Zvishandiso zvakakurumbira zveSMPS application ndezvi#26 (µi=75), #8/90 (µi=35), #52 (µi= 75) uye #18 (µi= 55).Iron poda cores ine saturation flux density ye10,000 kusvika 15,000 gauss.Iron poda cores yakagadzikana nekupisa.The #26 material ine tembiricha kugadzikana kwe825 ppm/C (inductance shanduko inosvika 9% nekushanduka kwetembiricha kusvika pal25 deg C) .The#52 material is 650 PPM/C (7%).Iyo #18 zvinhu ndeye 385 PPM/ C (4%), uye iyo #8/90 zvinhu ndeye 255 PPM/C (3%).

Iron poda cores yakanakira mune yakaderera frequency application.Sezvo yavo hysteresis uye eddy yazvino core kurasikirwa kwakakwira, tembiricha yekushanda inofanirwa kuganhurwa kusvika pasi pe125 deg C.

Pakushandisa kunosanganisira DC bias mamiriro, zvinotevera zvinongedzo zvinokurudzirwa.Kuti uwane pasi pe20% kuderera kwekutanga permeability pasi peDC bias mamiriro:

ZveNyaya #26, max DC bias <20 oersteds;
ZveNyaya #52, max DC bias <25 oersteds;
ZveNyaya #18, max DC bias <40 oersteds;
Zvechishandiso #8/90, max DC bias <80 oersteds.

Unique Features

1.Lowest cost.
2.Zvakanaka kune yakaderera frequency application (<10OKhz).
3.High maximum flux density: 15,000 gauss
4. Inductance kushivirira ± 10%
Applications:
1.Energy storage inductor
2.Low frequency DC inobuda inodzipwa
3.60 Hz musiyano muoti EMI Line Chokes
4.Chiedza Dimmers Chokes
5.Power Factor kururamisa Inodzipa.
6.Resonant Inductors.
7.Pulse uye Fly-backTransformers
8.In-line ruzha mafirita.Kugona kumira hombe AC ​​mutsetse ikozvino pasina saturation.
DC Biased Inductor Operation.
20% Permeability Limits

Pasi peDC magnetizing mamiriro, zvese zvehupfu zvinotaridza kuderedzwa kwepermeability sezvakaratidzwa mumachati.Iyo data iri pamusoro inotora AC flux density ye20 gauss.Zvekushandisa senge zvinobuda zvinokachidza, uko ma inductors ari DC akarerekera, simba remagnetization (H=0.4*PHI*N*l/l) rinoda kuverengerwa, uye huwandu hwekutendeuka hunowedzera kuverengera kudzikiswa kwekupinda.Kana iyo magnetization simba (H) yakaverengerwa iri mukati meiyo yepamusoro DC inorerekera miganho, mugadziri anongoda kuwedzera kutendeuka nepamusoro pe20%.

Relative Cost Comparison Table
Mutengo wehukama hwechinhu chimwe nechimwe unobva pamitengo iripo yezvigadzirwa uye mutengo wezvigadzirwa.Nhamba idzi dzinofanira kushandiswa segwara chete.Kazhinji Micrometal's Iron Powder #26 inodhura zvakanyanya, uye maMPPs ndiwo anodhura zvakanyanya.
Kune vazhinji vanogadzira uye vanounza kunze kwesimbi poda cores, uye mazhinji acho haaratidzi mhando yemhando seaya anopihwa neMicrometals.