High Inductance Sendust Core Sendust Block Core High Permeability

Zomwe zimapangidwa ndi Sendust zimakhala ndi 85% chitsulo, 9% silicon ndi 6% aluminiyamu.Ufawu umathiridwa mu cores kuti apange inductors.Sendust cores imakhala ndi maginito amphamvu kwambiri (mpaka 140 000), kutayika pang'ono, kukakamiza kochepa (5 A/m) kukhazikika kwa kutentha komanso kachulukidwe kachulukidwe kamadzi mpaka 1 T.


Tsatanetsatane wa Zamalonda

Zogulitsa Tags

Sendust ndi maginito azitsulo a ufa omwe anapangidwa ndi Hakaru Masumoto ku Tohoku Imperial University ku Sendai, Japan, pafupifupi 1936 monga njira ina yogwiritsira ntchito permalloy mu inductor applications for telefoni network.Zomwe zimapangidwa ndi Sendust zimakhala ndi 85% chitsulo, 9% silicon ndi 6% aluminiyamu.Ufawu umathiridwa mu cores kuti apange inductors.Sendust cores imakhala ndi maginito amphamvu kwambiri (mpaka 140 000), kutayika pang'ono, kukakamiza kocheperako (5 A/m) kukhazikika kwa kutentha komanso kuchulukitsitsa kwa flux mpaka 1 T.
Chifukwa cha kapangidwe kake ka mankhwala ndi mawonekedwe a crystallographic Sendust amawonetsa nthawi imodzi ziro magnetostriction ndi zero magnetocrystalline anisotropy nthawi zonse K1.
Sendust ndi yolimba kuposa permalloy, motero ndiyothandiza pamavalidwe a abrasive monga mitu yojambulira maginito.

Momwe Mungasankhire mitundu yamafuta a ufa omwe ali ndi mipata yogawa mpweya kuti agwiritse ntchito popanga ma inductors ndi kutsamwitsa

Mawu Oyamba

Bukuli lili ndi malangizo amomwe mungasankhire zida zoyambira ufa (MPP, Sendust, Kool Mu®, High Flux kapena Iron Powder) pazosankha zosiyanasiyana za inductor, kutsamwitsa ndi zosefera.Kusankha kwa mtundu umodzi wazinthu pamtundu wina nthawi zambiri kumadalira izi:
1) DC Bias Current kudzera pa inductor
2) Ambient Operating Temperature ndi kukwera kovomerezeka kwa kutentha.Kutentha kozungulira kopitilira 100 deg C tsopano ndikofala.
3) Kuletsa kukula ndi njira zoyikira (kupyolera mu dzenje kapena pamwamba)
4) Mtengo: Ufa wachitsulo kukhala wotsika mtengo komanso MPP, wokulirapo kwambiri.
5) Kukhazikika kwamagetsi pachimake ndi kusintha kwa kutentha
6) Kupezeka kwa zinthu zapakati.Mwachitsanzo, Micrometals #26 ndi #52 amapezeka makamaka kuchokera ku stock.Ambiri omwe amapezeka MPP cores ndi 125 permeability materials, etc.

Chifukwa cha kupita patsogolo kwaposachedwa kwaukadaulo wa ferromagnetic, kusankha kokulirapo kwa zida zopangira kukhathamiritsa kwapangidwe tsopano kulipo.Pamagetsi amagetsi osinthira (SMPS), ma inductors, kutsamwitsa ndi zosefera, zida zofananira ndi MPP (molypermalloy powder), High Flux, Sendust, ndi Iron Powder cores.Chilichonse mwazinthu zomwe zili pamwambazi zili ndi mawonekedwe omwe ali oyenera kugwiritsa ntchito zosiyanasiyana.
Omwe amapanga ma cores apamwambawa ndi awa:
1) Ma Micrometals azitsulo za ufa wachitsulo.Ma cores a Micrometals okha amayesedwa kuti azitha kutentha ndipo CWS imangogwiritsa ntchito ma cores a Micrometals pamapangidwe ake onse.
2) Magnetics Inc, Arnold Engineering, CSC, ndi T/T Electronics ya MPP, Sendust (Kool Mu®), ndi High Flux cores
3) TDK, Tokin, Toho kwa Sendust Cores

Ndi ma cores a ufa, zinthu zowoneka bwino kwambiri zimasiyidwa kapena kusinthidwa kukhala ufa.The permeability wa mitima idzadalira tinthu kukula ndi kachulukidwe wa mkulu permeability zipangizo.Kusintha kwa tinthu kukula ndi kachulukidwe nkhaniyi kumabweretsa permeability osiyana mitima.Zing'onozing'ono kukula kwa tinthu, kutsika kwa permeability ndi makhalidwe abwino a DC, koma pamtengo wokwera.The munthu particles ufa ndi insulated wina ndi mzake, kulola mitima kuti mwachibadwa anagawira mpweya mipata yosungirako mphamvu mu inductor.

Katundu wogawanika wa mpweya umatsimikizira kuti mphamvuyo imasungidwa mofanana kudzera pachimake.Izi zimapangitsa pachimake kukhala bwino kutentha bata.Ma ferrite ong'ambika kapena ong'ambika amasunga mphamvu mumpata wa mpweya womwe uli komweko koma ndi kutayikira kochulukira komwe kumayambitsa kutayika kwapakati komanso kusokoneza.Nthawi zina, kutayika kumeneku chifukwa cha kusiyana komwe kumakhalapo kumatha kupitilira kutayika kwakukulu komweko.Chifukwa cha kukhazikika kwa kusiyana kwa mpweya pakatikati pa ferrite, sikuwonetsa kukhazikika kwa kutentha.

Kusankha koyenera kwambiri ndikusankha zinthu zabwino kwambiri zosagwirizana pang'ono ndikukwaniritsa zolinga zonse zamapangidwe.Ngati mtengo ndiye chinthu chachikulu, ufa wachitsulo ndi chisankho.Ngati kukhazikika kwa kutentha ndikofunika kwambiri, MPP idzakhala njira yoyamba.Makhalidwe a mtundu uliwonse wa nkhani amakambidwa mwachidule.
Mitundu yonse ya 3 ya ma cores a ufa ingagulidwe pa intaneti pang'onopang'ono kuchokera ku stock (kutumiza mwachangu) patsamba lotsatirali: www.cwsbytemark.com.Zambiri zaukadaulo zazinthu izi zitha kupezeka www.bytemark.com

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

Ma cores a MPP ali ndi kutayika kotsika kwambiri komanso kutentha kwabwino kwambiri.Kawirikawiri, kusiyana kwa inductance kumakhala pansi pa 1% mpaka 140 deg C. MPP cores imapezeka poyambira (µi) ya 26, 60, 125, 160, 173, 200, ndi 550. MPP imapereka resistivity yapamwamba, low hysteresis ndi eddy panopa zotayika, komanso kukhazikika kwabwino kwa inductance pansi pa kukondera kwa DC ndi mikhalidwe ya AC.Pansi pa chisangalalo cha AC, kusintha kwa inductance kumakhala pansi pa 2% (kukhazikika kwambiri) kwa µi = 125 cores pa AC flux density yopitilira 2000 gauss.Simadzaza mosavuta pamagetsi apamwamba a DC kapena DC bias condition.

Poyerekeza ndi zida zina, ma cores a MPP ndiye okwera mtengo kwambiri, koma apamwamba kwambiri pakutayika kwakukulu komanso kukhazikika.Pogwiritsa ntchito zomwe zikukhudzana ndi kukondera kwa DC, gwiritsani ntchito malangizo awa.Kuti muchepetse kuchepa kwa 20% pakutha koyambirira pansi pa chikhalidwe cha DC: - Kwa µi = 60 cores, max.DC kukondera <50 oersted;µi = 125, max.DC kukondera <30 oersted;µi = 160, max.DC kukondera <20 oersted.

Zapadera

1.Kutayika kwakukulu kwapakati pakati pa zipangizo zonse za ufa.Kutayika kwa ma hysteristics otsika kumabweretsa kusokonekera kwa ma siginecha ochepa komanso kutayika kotsalira kotsalira.
2.Best kutentha bata.Pansi pa 1%.
3.Kuchulukirachulukira kokwanira kwambiri ndi 8000 gauss (0.8 tesla)
4.Kulekerera kwa inductance: + - 8%.(3% kuchokera 500 Hz mpaka 200 Khz)
5.Zomwe zimagwiritsidwa ntchito kwambiri muzamlengalenga, zankhondo, zachipatala komanso zotentha kwambiri.
6.Most kupezeka mosavuta monga comapred to high flux ndi sendust.
Mapulogalamu :
Zosefera zapamwamba za Q, zotsegula, zozungulira zowoneka bwino, zosefera za RFI zama frequency ochepera 300 kHz, zosinthira, zotsekera, zosefera zamitundu yosiyanasiyana, ndi zosefera zokondera za DC.

High Flux Cores
Zolemba: Ni-Fe

High Flux cores amapangidwa ndi 50% faifi tambala ndi 50% chitsulo aloyi ufa.Zomwe zili m'munsi ndizofanana ndi chitsulo chokhazikika cha nickel muzitsulo zabala la tepi.Ma High Flux cores ali ndi mphamvu zosungirako mphamvu zambiri, komanso kuchulukirachulukira kwamphamvu.Kachulukidwe kawo kachulukidwe kawo ndi pafupifupi 15,000 gauss (1500 mT), ofanana ndi ma cores achitsulo.High Flux cores imapereka kutayika kotsika pang'ono kuposa Sendust.Komabe, kutayika kwakukulu kwa High Flux ndikokwera kwambiri kuposa ma cores a MPP.High Flux cores imagwiritsidwa ntchito kwambiri pogwiritsira ntchito pomwe kukondera kwa DC kuli kokwera.Komabe, sizipezeka mosavuta monga MPP kapena Sendust, ndipo ndizochepa pazosankha zake zofikira kapena kusankha kukula kwake.
Mapulogalamu :

1) Mu Zosefera za Line Noise pomwe inductor iyenera kuthandizira ma voltages akulu a AC popanda machulukitsidwe.

2) Kusintha Owongolera Ma Inductors kuti agwire kuchuluka kwa tsankho la DC

3) Ma Pulse Transformers ndi Flyback Transformers popeza kuchuluka kwake kotsalirako kuli pafupi ndi zero gauss.Ndi kachulukidwe kachulukidwe ka 15K gauss, kachulukidwe kake (kuchokera ku zero mpaka 15K gauss) ndikoyenera kugwiritsa ntchito unipolar drive monga pulse transformer ndi flyback transfoma.

Kool Mu® / SENDUST
Zolemba: Al-Si-Fe

Sendust cores imadziwikanso kuti Kool Mu® kuchokera ku Magnetics Inc., Sendust material idagwiritsidwa ntchito koyamba ku Japan kudera lotchedwa Sendai, ndipo amatchedwa "fumbi" pachimake, motero amatchedwa Sendust.Nthawi zambiri, ma sendust cores amakhala ndi zotayika zochepa kwambiri kuposa ma cores ufa wachitsulo, koma amakhala ndi zotayika zazikulu kuposa ma cores a MPP.Poyerekeza ndi ufa wachitsulo, sendust core loss ikhoza kukhala yotsika ngati 40% mpaka 50% ya Iron powder core loss.Sendust cores imawonetsanso kuchepa kwa magnetostriction coefficient, chifukwa chake ndiyoyenera kugwiritsa ntchito zomwe zimafuna phokoso lotsika.Sendust cores ili ndi kuchuluka kwa machulukitsidwe a 10,000 gauss omwe ndi otsika kuposa ufa wa Iron.Komabe, sendust imapereka malo osungiramo mphamvu kwambiri kuposa MPP kapena ma ferrite opanda malire.

Sendust cores imapezeka poyambira (Ui) ya 60 ndi 125. Sendust core imapereka kusintha kochepa kwa permeability kapena inductance (pansi pa 3% kwa ui = 125) pansi pa chisangalalo cha AC.Kukhazikika kwa kutentha kumakhala bwino kwambiri pamapeto apamwamba.Kusintha kwa inductance kumakhala kochepa kuposa 3% kuchokera kumalo ozungulira mpaka 125 deg C. Komabe, pamene kutentha kumachepa mpaka 65 deg C, inductance yake imachepa pafupifupi 15% kwa µi = 125.Komanso dziwani kuti kutentha kumawonjezeka, sendust imasonyeza kuchepa kwa inductance motsutsana ndi kuwonjezeka kwa inductance kwa zipangizo zina zonse za ufa.Izi zitha kukhala chisankho chabwino pakulipirira kutentha, zikagwiritsidwa ntchito ndi zida zina mumagulu apakati.

Sendust cores imawononga ndalama zocheperako kuposa ma MPP kapena ma flux okwera, koma okwera mtengo kwambiri kuposa ma cores achitsulo.Pogwiritsa ntchito zomwe zikukhudzana ndi kukondera kwa DC, gwiritsani ntchito malangizo awa.Kuti mukhale pansi pa 20% kutsika koyambira pansi pa chikhalidwe cha DC:

Kwa µi = 60 cores, max.DC kukondera <40 oersted;µi = 125, max.Kukondera kwa DC <15 oersted.

Zapadera

1.Kutayika kwakukulu kwapakati kuposa Iron Powder.
2.Low magnetostriction coefficient, phokoso lotsika lomveka.
3.Kukhazikika kwa kutentha kwabwino.Pansi pa 4% kuchokera -15 'C mpaka 125'C
4.Kuchulukira kwakukulu: 10,000 gauss (1.0 tesla)
5.Kulekerera kwa inductance: ± 8%.
Mapulogalamu:
1.Switching regulators kapena Power Inductors mu SMPS
2.Fly-back ndi Pulse transfoma (ma inductors)
3.In-Line zosefera phokoso
4. Swing amatsamwitsa
5.Phase control circuits (phokoso lotsika lomveka) kuwala kwa magetsi, zipangizo zoyendetsera liwiro la galimoto.
Ufa Wachitsulo
Kupanga: Fe

Ufa wachitsulo ndiye wokwera mtengo kwambiri pamitundu yonse yaufa.Imapereka njira yotsika mtengo yopangira MPP, High Flux kapena Sendust cores.Kutayika kwake kwakukulu pakati pa zida zonse za ufa kumatha kulipidwa pogwiritsa ntchito ma cores akulu akulu.Mu ntchito zambiri, kumene danga ndi kutentha kwapamwamba kukwera muzitsulo za ufa wachitsulo ndizochepa poyerekeza ndi ndalama zosungiramo ndalama, zitsulo zazitsulo zachitsulo zimapereka njira yabwino yothetsera.Iron Powder cores imapezeka m'magulu awiri: chitsulo cha carbonyl ndi chitsulo chochepetsedwa cha haidrojeni.Carbonyl iron imakhala ndi zotayika zochepa kwambiri ndipo imawonetsa ma Q apamwamba pamapulogalamu a RF.

Ma Iron Powder cores akupezeka mu permeabilities kuyambira 1 mpaka 100. Zida zodziwika bwino zamapulogalamu a SMPS ndi #26 (µi=75), #8/90 (µi=35), #52 (µi=75) ndi #18 (µi= 55).Iron powder cores imakhala ndi kuchuluka kwa machulukitsidwe a 10,000 mpaka 15,000 gauss.Iron ufa wapakati ndi wokhazikika ndi kutentha.Zinthu za #26 zimakhala ndi kutentha kwa 825 ppm / C (kusintha kwa inductance pafupifupi 9% ndi kusintha kwa kutentha mpaka l25 deg C) .The #52 zinthu ndi 650 PPM / C (7%).Zinthu #18 ndi 385 PPM/ C (4%), ndipo #8/90 zinthu ndi 255 PPM/C (3%).

Iron powder cores ndi yabwino pamagwiritsidwe ocheperako pafupipafupi.Popeza ma hysteresis ndi kutayika kwapakatikati kwa eddy ndizokwera, kutentha kwa ntchito kuyenera kukhala kosachepera 125 deg C.

Pakugwiritsa ntchito zomwe zikukhudzana ndi kukondera kwa DC, malangizo otsatirawa akulimbikitsidwa.Kuti mukhale pansi pa 20% kutsika koyambira pansi pa chikhalidwe cha DC:

Pazinthu #26, max DC kukondera <20 oersteds;
Pazinthu #52, kukondera kwakukulu kwa DC <25 oersteds;
Pazinthu #18, kukondera kwakukulu kwa DC <40 oersteds;
Pazinthu #8/90, kukondera kwakukulu kwa DC <80 oersteds.

Zapadera

1.Otsika mtengo.
2.Good kwa otsika pafupipafupi ntchito (<10OKhz).
3.Kuchuluka kwapamwamba kwambiri: 15,000 gauss
4. Kulekerera kwa inductance ± 10%
Mapulogalamu:
1.Energy yosungirako inductor
2.Low pafupipafupi DC linanena bungwe tsamwitsa
3.60 Hz mosiyanasiyana EMI Line Chokes
4.Light Dimmers Chokes
5.Kuwongolera kwa Power Factor Chokes.
6.Resonant Inductors.
7.Pulse ndi Fly-backTransformers
8.In-line phokoso zosefera.Kutha kupirira mizere yayikulu ya AC popanda machulukitsidwe.
DC Biased Inductor Operation.
20% malire Permeability

Zipangizo Chiyambi cha Perm. Max.DC Bias (Oersteds)
MPP 60
125
160
<50
<30
<20
High Flux 60
125
<45
<22
Sendust 60
125
<40
<15
Ufa Wachitsulo
Mix #26
Kusakaniza #52
Mix #18
Sakanizani #8/90
75
75
55
35
<20
<25
<40
<80

Pansi pamikhalidwe ya magnetizing ya DC, zida zonse za ufa zikuwonetsa kuchepa kwapakatikati monga momwe zikuwonekera m'ma chart.Zomwe zili pamwambapa zimatengera kuchuluka kwa AC flux ya 20 gauss.Kuti mugwiritse ntchito monga zotulutsa zotulutsa, pomwe ma inductors ndi okondera a DC, mphamvu yamaginito (H=0.4*PHI*N*l/l) iyenera kuwerengedwa, ndipo kuchuluka kwa matembenuzidwe kumachulukira kuwerengera kuchepa kwa permeability.Ngati mphamvu ya maginito (H) yowerengedwa ili mkati mwa malire omwe ali pamwambawa a DC kukondera, wopanga amangofunika kuwonjezera makhotiwo ndi 20%.

Mwachibale Cost Kuyerekeza Table
Mtengo wachibale wazinthu zilizonse zimatengera mitengo yomwe ilipo komanso mtengo wazinthu zopangira.Manambalawa akuyenera kugwiritsidwa ntchito ngati chiwongolero chokha.Mwambiri, Iron Powder #26 ya Micrometal ndiyotsika mtengo kwambiri, ndipo ma MPP ndi zinthu zotsika mtengo kwambiri.
Pali ambiri opanga ndi ogulitsa kunja kwazitsulo zachitsulo za ufa, ndipo ambiri a iwo samawonetsa mulingo wamtundu womwe umaperekedwa ndi Micrometals.

Zipangizo Mtengo Wachibale
Ufa Wachitsulo
Mix#26
Mix#52
Mix#18
Sakanizani # 8/90
1.0
1.2
3.0
4.0
Sendust 3.0 mpaka 5.0
High Flux 7.0 mpaka 10.0
MPP 8.0 mpaka 10.0
High inductance Sendust Core
High inductance Sendust Core

Munda wofunsira

1. Mphamvu yamagetsi yosasokoneza
2. Photovoltaic inverter
3. Mphamvu ya seva
4. DC Kuchapira mulu
5. Magalimoto amagetsi atsopano
6. Air conditioner

Makhalidwe Antchito

· Ali ndi kusiyana kwa mpweya wofanana
·Kuchulukitsidwa kwamphamvu kwa maginito (1.2T)
·Kutayika kochepa
· Low magnetostriction coefficient
· Kutentha kokhazikika komanso mawonekedwe afupipafupi

Mmisiri

Sendust pachimake aumbike ndi kuwonjezera kuchuluka kwa galasi kupanga wothandizila kwa chitsulo chosungunuka, ndi mofulumira kuzimitsa ndi kuponyera ntchito yopapatiza ceramic nozzle pansi pa kutentha kusungunuka zikhalidwe.Ma amorphous alloys ali ndi mawonekedwe ofanana a mawonekedwe a galasi, omwe samangowapangitsa kukhala ndi makina abwino kwambiri, katundu wakuthupi ndi mankhwala, koma chofunika kwambiri, teknoloji yatsopano yopangira ma amorphous alloys pogwiritsa ntchito njira yozimitsira mofulumira ndi yochepa kuposa silicon yosungunuka. ndondomeko yachitsulo pepala.Njira 6 mpaka 8 zimatha kupulumutsa mphamvu yogwiritsira ntchito mphamvu ndi 60% mpaka 80%, yomwe ndi njira yopulumutsira mphamvu, yopulumutsa nthawi komanso yothandiza zitsulo.Komanso, amorphous aloyi ali otsika coercivity ndi mkulu maginito permeability, ndi imfa yake pachimake ndi otsika kwambiri kuposa lochokera ozizira-anagulung'undisa pakachitsulo pepala, ndipo palibe katundu kutaya kungachepe ndi pafupifupi 75%.Choncho, kugwiritsa ntchito ma amorphous alloys m'malo mwa mapepala achitsulo a silicon kupanga ma thiransifoma cores ndi imodzi mwa njira zazikulu zopulumutsira mphamvu ndi kuchepetsa kugwiritsira ntchito zipangizo zamakono zamakono.

Parameter Curve

High inductance Sendust Core (1)
High inductance Sendust Core (4)
High inductance Sendust Core (2)
High inductance Sendust Core (3)
High inductance Sendust Core (5)
High inductance Sendust Core (6)

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