Qhov sib txawv ntawm BJTs thiab MOSFETs hauv Battery Management Systems (BMS)

1. Bipolar Junction Transistors (BJTs):

(1) Qauv:BJTs yog cov khoom siv semiconductor nrog peb lub electrodes: lub hauv paus, emitter, thiab collector. Lawv feem ntau yog siv rau amplifying los yog switching signals. BJTs xav tau ib qho me me tam sim no rau hauv lub hauv paus los tswj cov dej ntws loj dua ntawm cov khoom siv thiab cov emitter.

(2) Muaj nuj nqi hauv BMS: In BMSdaim ntawv thov, BJTs yog siv rau lawv cov peev xwm amplification tam sim no. Lawv pab tswj thiab tswj cov dej ntws tam sim no hauv qhov system, kom ntseeg tau tias cov roj teeb raug them thiab tso tawm kom zoo thiab nyab xeeb.

(3) Cov yam ntxwv:BJTs muaj qhov nce siab tam sim no thiab muaj txiaj ntsig zoo hauv cov ntawv thov uas xav tau kev tswj hwm tam sim no. Lawv feem ntau rhiab heev rau thermal tej yam kev mob thiab muaj peev xwm raug kev txom nyem los ntawm ntau zog dissipation piv rau MOSFETs.

2. Hlau-Oxide-Semiconductor Field-Effect Transistors (MOSFETs):

(1) Qauv:MOSFETs yog cov khoom siv semiconductor nrog peb lub davhlau ya nyob twg: lub rooj vag, qhov chaw, thiab ntws. Lawv siv qhov hluav taws xob los tswj qhov ntws ntawm qhov tam sim no ntawm qhov chaw thiab ntws, ua rau lawv muaj txiaj ntsig zoo hauv kev siv hloov pauv.

(2) Ua haujlwm hauvBMS:Hauv BMS daim ntawv thov, MOSFETs feem ntau siv rau lawv cov peev xwm hloov pauv tau zoo. Lawv tuaj yeem qhib thiab tawm sai sai, tswj cov dej ntws ntawm qhov tam sim no nrog kev ua haujlwm tsawg thiab tsis muaj zog. Qhov no ua rau lawv zoo tagnrho rau kev tiv thaiv roj teeb los ntawm overcharge, over-discharge, thiab luv circuits.

(3) Cov yam ntxwv:MOSFETs muaj cov input impedance siab thiab tsis tshua muaj kev ua haujlwm, ua rau lawv ua haujlwm tau zoo nrog cov cua kub qis dua piv rau BJTs. Lawv yog tshwj xeeb tshaj yog haum rau high-ceev thiab high-efficiency switching daim ntaub ntawv nyob rau hauv BMS.

Cov ntsiab lus:

• BJTsyog qhov zoo dua rau cov ntawv thov uas xav tau kev tswj xyuas tam sim no vim lawv qhov kev nce siab tam sim no.
• MOSFETsyog qhov zoo dua rau kev hloov pauv sai thiab nrawm nrog cov cua kub qis, ua rau lawv zoo tagnrho rau kev tiv thaiv thiab tswj cov roj teeb ua haujlwm hauvBMS.