Dab tsi yog qhov ua haujlwm ntawm cov txiaj ntsig ntawm cov loj zaus hloov pauv hauv lub zog hluav taws xob Transformer?
Aug 12, 2019
Tso lus
1. Taw qhia siab rau siab- zaus hloov pauv
A high - zaus transformer (HFT)yog hom tshwj xeeb ntawm transformer tsim los ua haujlwm ntawmNTAU YAM TSEEM CEEB NTAUG 10 KHZ, raws li txwv rau cov hluav taws xob pa hluav taws xob uas ua haujlwm ntawm50 hz lossis 60 hzCov. Vim lawv lub siab ua haujlwm ntau, hfts yogme dua, sib dua, thiab ntau dua, ua rau lawv qhov tseem ceeb nyob rau hauv niaj hnub hluav taws xob hluav taws xob, suav nrog:
- Hloov {- hom fais fab khoom (smps)
- DC - dc converters
- Inverters (hnub ci, Ups, EV Chargers)
- Wireless fais fab hloov (Qi txuj ci)
- RF thiab kev sib tham
2. Lub ntsiab lus ua hauj lwm
Siab - zaus transformers ua haujlwm raws liFaraday Txoj Cai ntawm Electromagnetic Induction, zoo ib yam li cov pa hluav taws. Txawm li cas los xij, lawv txoj kev coj cwj pwm txawv tau vim yog qhov siab- zaus.
2.1 Kev Ua Haujlwm Induction Electromagnetic
- Thaum twgHloov pauv tam sim no (AC)ntws los ntawmThawj winding (n₁), nws generates alub sij hawm - sib txawv sib nqus sib nqus flux (φ)Hauv cov tub ntxhais.
- Qhov kev hloov pauv no ua rau muaj hluav taws xob hluav taws xob hauv lubThib ob winding (n₂)Raws li:
Qhov twg:
○ V1=voltage
○V2 {{{{{}}} cov voltage thib ob
○ N1, n2 =} tus naj npawb ntawm lem
2.2 qhov tseem ceeb siab siab - zaus tshwm sim
Cov nyhuv ①SKIN
○ Nyob ntev ntau zaus, tam sim no ntws feem ntau nyob ze tus neeg xyuas xyuas lub ntsej muag, nce ntxivSiv Tau Zoo (RACK> RDC).
Cov Roj Agucion ○:Kev sivLitz hlau (ntau cov plua plav)lossisTiaj Tus Tooj Ntawv Ntawv Nyiajlos txo kev poob.
②proximity effectity
Cov neeg uas muaj kev sib nqus luschaw sib nqus, yuam kom cov neeg coob coob nyob ntawm ib sab.
Cov Roj Agucion ○:Txhim kho cov cuab yeej winding winding (piv txwv li, cuam tshuam los yog windinged).
③core poob (hysteresis & eddy dej)
○ Hysteresis poob(Zog ploj vim yog sib nqus kev ua haujlwm).
○ Eddy tam sim no poob(ncig cov dej ntws hauv cov tub ntxhais).
Cov Roj Agucion ○:Kev sivTsawg -} poob ferrite, nanocrystalline, lossis hmoov hlau cores.
④parasitic capacitance & to topage inductance
○ Kev siv hluav taws xob stray ntawm windings windings thiab to flux txo tau kev ua tau zoo.
Cov Roj Agucion ○:Kev sivCov thaiv cov windings, lub ntiaj teb transformers, lossis resonant topologies.
3. Cov ntaub ntawv tseem ceeb rau qhov siab- zaus hloov pauv
| Khoom | Zaus heev | Qhov Zoo | Tsis zoo |
|---|---|---|---|
| Ferrite (mn - zag zn / ni - Zn) | 10 KHZ - 1 MHz | Qis poob, nqi -}}}}} | Tsawg Saturation Flux (~ 0.4 t) |
| Nanocrystalline | 10 khz - 500 khz | Ultra -} Tsis muaj poob, siab permeability | Kim |
| Amorphous Hlau | 10 khz - 100 khz | Tsawg hysteresis poob | Nkig, muaj kev muaj tsawg |
| Ploom Tshuaj Hlau | 50 Khz - 1 Mhz | Muaj Siab Siab, Zoo rau cov ntxaij lim dej | Cov tub ntxhais siab dua li ferrite |
4. Kev siv ntawm siab- zaus hloov pauv
①switch - hom fais fab khoom (smps)
Siv rau hauv lub laptops, tus xov tooj them xov tooj (piv txwv li USB - c pd).
○ Feem ntau:50 KHZ - 500 KHz.
②dc {{{0} DC Converters (Buck / Boost / Flyback)
Kuas -} nce / down voltage hauv lub tshuab txuas ntxiv.
③wireless fais fab hloov (Qi, A4WP)
○ Rabonant inductive Coupling ntawm100 kHz - 1 MHz.
HORF & TELECOM (Hloov Hloov Hloov)
○ Kev sib cais nyob rau hauv high - ceev cov ntaub ntawv kis.
5. Kev sib piv: High - zaus vs. qis- zaus transformers
| Chaw ua uas tsis tau haus | High - zaus transformer | Tsawg - zaus transformer |
|---|---|---|
| Zaus heev | 10 KHZ - 1 MHZ | 50 HZ - 60 HZ |
| Cov Khoom Siv Tseem Ceeb | Ferrite, nanocrystalline | Silicon Hlau |
| Loj & Nyhav | Me me, lub teeb yuag | Loj, Hnyav |
| Ua tau zoo | >90% (nyob ntawm kev tsim qauv) | ~ 95% (qis dua ntawm cov khoom lag luam siab) |
| Qhov nyuaj nyuaj | Daim tawv nqaij cov nyhuv, cov tsis muaj zog poob | Kev sib xyaws, qis zog lub zog |
6. Yav Tom Ntej Cov Qauv Hauv Nruab Nrab - zaus hloov pauv
①higher zaus (MHz +)
○ Xaiv tau los ntawmGan (Gallium Nitride) thiab Sic (Silicon Carbide)Fais fab khoom siv fais fab.
Oplanar & Kev Hloov Hloov Hloov
○ PCB - aphedded tsim rau kev cog lus lub zog.
③advanced magnetic cov ntaub ntawv
○ Nanocrystalline thiab metamaterials rau qis poob.
Kev tswj hwm ④Digital tswj & AI optimization
Yim nraus zaus hloov kho rau ntau tshaj plaws efficiency.
7. Xaus
High - zaus transformers txoj kevIntromagnetic InductionTab sis fim cov kev sib tw tshwj xeeb liCov nyhuv ntawm daim tawv nqaij, cov kev poob ntawm cov tub ntxhais, thiab parasiticsCov. Los ntawm kev sivCov ntaub ntawv tshwj xeeb cov ntaub ntawv (ferrite, nanocrystalline) thiab cov txheej txheem winding, lawv pab kom sib xyaw, muaj zog hluav taws xob hloov pauv hloov pauv hauv niaj hnub hluav taws xob. Yav tom ntej nce qib hauvDav {- bandgap semiconductors (Gan / Sic) thiab Digital tswjyuav ntxiv rau lawv cov kev ua tau zoo hauvTxuas Txuas Ntxiv Ntxiv, Evs, Thiab 5G / 6g Systems.
Yog xav paub ntxiv, thov hu rau peb ntawmsales@xfullstar.com