Thaum tsim lossis nthuav cov roj teeb uas siv hluav taws xob, cov lus nug tshwm sim: Puas yog ob lub roj teeb uas muaj qhov hluav taws xob tib yam txuas nrog hauv cov koob? Cov lus teb luv luv yogyog, tab sis nrog qhov tseem ceeb ua ntej:qhov voltage withstand muaj peev xwm ntawm kev tiv thaiv Circuit Courtyuav tsum tau ua tib zoo soj ntsuam. Hauv qab no, peb piav qhia cov ntsiab lus thiab kev ceev faj kom muaj kev nyab xeeb thiab txhim khu kev qha.
Nkag siab qhov txwv: Tiv thaiv Circuit Court Voltage Tolerance
Cov roj teeb lithium feem ntau yog nruab nrog Kev Tiv Thaiv Circuit Board (PCB) los tiv thaiv overcharging, over-discharging, thiab luv circuits. Ib qho tseem ceeb parameter ntawm no PCB yog lubvoltage withstand ntsuam xyuas ntawm nws MOSFETs(cov keyboards hluav taws xob uas tswj cov dej ntws tam sim no).
Piv txwv Scenario:
Siv ob lub 4-cell LiFePO4 roj teeb pob ua piv txwv. Txhua pob muaj tag nrho cov nqi hluav taws xob ntawm 14.6V (3.65V ib lub xov tooj). Yog hais tias txuas nyob rau hauv series, lawv ua ke voltage ua2 9.2v. Tus qauv 12V roj teeb tiv thaiv PCB feem ntau yog tsim nrog MOSFETs ntsuas rau35-40 V. Hauv qhov no, tag nrho qhov hluav taws xob (29.2V) poob rau hauv qhov chaw nyab xeeb, cia cov roj teeb ua haujlwm tau zoo hauv cov koob.
Kev pheej hmoo ntawm Kev Tshaj Tawm Tshaj Tawm:
Txawm li cas los xij, yog tias koj txuas plaub cov pob khoom no hauv cov koob, tag nrho qhov hluav taws xob yuav dhau 58.4V - deb tshaj li 35-40V kam rau ntawm cov qauv PCBs. Qhov no ua rau muaj kev phom sij zais cia:
Kev Tshawb Fawb Tom Qab Risk
Thaum cov roj teeb txuas nrog hauv cov koob, lawv cov voltages ntxiv, tab sis cov kev tiv thaiv circuits ua haujlwm ntawm nws tus kheej. Raws li ib txwm muaj, qhov sib xyaw ua ke ntawm qhov hluav taws xob ua rau lub nra (piv txwv li, 48V ntaus ntawv) yam tsis muaj teeb meem. Txawm li cas los xij, yog tiasib pob roj teeb ua rau muaj kev tiv thaiv(piv txwv li, vim yog over-discharge los yog overcurrent), nws MOSFETs yuav disconnect cov pob ntawd los ntawm Circuit Court.
Nyob rau ntawm lub sijhawm no, tag nrho qhov hluav taws xob ntawm cov roj teeb uas tseem tshuav hauv cov koob yog siv thoob plaws MOSFETs uas tsis tau txuas. Piv txwv li, nyob rau hauv plaub-pob teeb, ib qho kev sib txuas PCB yuav ntsib ze li ntawm5 8.4v- Tshaj nws qhov ntsuas 35-40V. MOSFETs yuav ua tsis tiav vimhluav taws xob tawg, mus tas li disabling lub tiv thaiv Circuit Court thiab tawm hauv lub roj teeb muaj kev pheej hmoo rau yav tom ntej.
Cov kev daws teeb meem rau Safe Series Connections
Txhawm rau zam cov kev pheej hmoo no, ua raws li cov lus qhia no:
1.Tshawb xyuas Chaw tsim khoom Specifications:
Nco ntsoov xyuas seb koj lub roj teeb tiv thaiv PCB puas raug ntsuas rau cov ntawv thov series. Qee cov PCBs tau tsim tshwj xeeb los tswj cov hluav taws xob ntau dua hauv ntau lub pob teeb tsa.
2.Kev cai High-Voltage PCBs:
Rau cov haujlwm uas xav tau ntau lub roj teeb hauv series (xws li, hnub ci cia lossis EV systems), xaiv rau kev tiv thaiv circuits nrog customized high-voltage MOSFETs. Cov no tuaj yeem raug kho kom haum rau tag nrho qhov hluav taws xob ntawm koj qhov kev teeb tsa series.
3.Balanced Design:
Xyuas kom tag nrho cov roj teeb pob hauv cov koob tau sib luag hauv lub peev xwm, hnub nyoog, thiab kev noj qab haus huv kom txo qis qhov kev pheej hmoo ntawm kev tsis sib xws ntawm cov txheej txheem tiv thaiv.
Kev xav zaum kawg
Thaum txuas tib-voltage roj teeb nyob rau hauv series yog technically ua tau, qhov kev sib tw tiag tiag nyob rau hauv kom ntseeg tau tias lubkev tiv thaiv circuitry tuaj yeem tswj cov kev ntxhov siab ntau ntxiv. Los ntawm qhov tseem ceeb ntawm cov ntsiab lus tshwj xeeb thiab kev tsim qauv tsim, koj tuaj yeem ua kom muaj kev nyab xeeb ntawm koj lub roj teeb rau kev siv hluav taws xob ntau dua.
Ntawm DALY, peb muabcustomizable PCB kev daws teeb meemnrog high-voltage MOSFETs kom tau raws li cov kev xav tau ntawm kev sib txuas siab heev. Hu rau peb pab neeg los tsim kom muaj kev nyab xeeb, txhim khu kev qha zog rau koj cov haujlwm!
Post lub sij hawm: May-22-2025
