FAQ

FAQ

COV LUS UAS PHEEJ NUG

Sau ntawv rau koj xaiv ib lub switching fais fab mov?

1) Yuav kom nce lub cia siab rau ntawm lub switching fais fab mov, peb xav kom cov neeg siv xaiv ib chav tsev uas muaj ib tug ntsuam xyuas ntawm 30% hwj huam ntau dua tiag tiag yuav tsum tau. Piv txwv li, yog hais tias tus system yuav tsum tau ib tug 100W qhov twg los, peb hais tias cov neeg siv xaiv ib tug SPS nrog 130W ntawm tso zis ntau zog los yog ntau tshaj. Yog koj ua qhov no, koj muaj peev xwm zoo boost lub ntseeg ntawm lub SPS nyob rau hauv koj lub cev.

2) Peb kuj yuav tsum xav txog hais txog ambient kub ntawm lub SPS thiab seb puas muaj yog ntxiv ntaus ntawv rau dissipating lub tshav kub. Yog hais tias lub SPS yog ua hauj lwm nyob rau hauv ib tug kub ib puag ncig, peb yuav tsum tau ua ib co derating mus rau lub tso zis ntau zog. Lub derating nkhaus ntawm "ambient kub" tiv tiag "tso zis ntau zog" yuav nyob rau ntawm peb spec los xij.

3) Xaiv zog raws li nyob rau hauv koj daim ntawv thov:

* Kev pab tiv thaiv nuj nqi: Nyob Voltage tiv thaiv (OVP), Nyob Kub Tiv Thaiv (OVP), Nyob Load tiv thaiv (OLP), thiab lwm yam

* Daim ntawv muaj nuj nqi: Nrov tas muaj nuj nqi (Hwjchim Zoo, fais fab Tsis), tej thaj chaw deb tswj, tej thaj chaw deb tsoov, thiab lwm yam

* Tshwj xeeb muaj nuj nqi: Hwj chim zoo tshaj Kho (PFC), uninterruptible Hwj chim Mov (UPS) muaj nuj nqi.

Yuav ua li cas yog yam tsawg kawg nkaus load yuav tsum los ntawm lub spec?

Muaj ib co yam tsawg kawg nkaus-load yuav tsum rau multi-output khoom siv fais fab. Thov nyeem cov specification thawj zaug ua ntej txuas mus rau lub load. Nyob rau hauv thiaj li yuav tso cai rau lub hwj huam mov mus ua hauj lwm kom zoo, ib tug tsawg kawg nkaus load rau txhua zis yog yuav tsum tau, los yog lwm tus, tso zis voltage theem yuav tsis ruaj tsis khov los yog txheej kam ntau yam. Thov xa mus rau " Tam sim no ntau yam " nyob rau hauv lub specification raws li qhia nyob rau hauv lub rooj hauv qab no: Channel 1 yuav tsum tau ib tug 2A yam tsawg kawg nkaus-load; channel 2 yuav tsum tau 0.5A; Channel 3 yuav tsum tau 0.1A; Channel 4 yuav tsis tau kev yam tsawg kawg nkaus-load.

Tso zis Number CH1 CH2 CH3 CH4
DC Voltage 5V 12V -5V -12V
Nyob Tam sim no 11a 4.5A 1A 0.5A
Tam sim no kev khwv 2 ~ 12A 0.5-4.5A 0.1 ~ 1A 0 ~ 1A
Vim li cas lub hwj huam mov shuts thaum lub sij hawm kev lag luam thiab tom qab xa nws tawm, kuv yuav pib dua lub hwj huam mov dua?

Nyob rau hauv kev muaj ob yam uas yuav ua rau lub hwj huam mov mus kaw lawm. Qhov ib yog qhov ua kom lub dhau-load-kev tiv thaiv (OLP). Yuav kom nrog qhov teeb meem no, peb xav kom ua lub rating ntawm lub tso zis ntau zog los yog modifying OLP point. Qhov thib ob ib yog cov ua kom cov tshaj-kub tiv thaiv (OTP) thaum lub internal kub nce mus txog lub pre-set nqi. Tag nrho cov tej yam kev mob yuav qhia rau tus SPS nkag mus tiv thaiv hom thiab kaw cia. Tom qab no tej yam kev mob yog muab tshem tawm, lub SPS yuav tau rov qab mus rau li qub.

Yuav ua li cas yog PFC?

Hwj chim zoo tshaj Kho (PFC) yog los txhim kho lub ratio ntawm khees hwj chim rau lub hwj chim. Lub hwj chim tshaj yog ib ncig ntawm 0.4 ~ 0.6 nyob rau hauv uas tsis yog-PFC qauv. Nyob rau hauv cov qauv nrog PFC Circuit Court, lub hwj chim tshaj yuav ncav cuag saum toj no 0,95. Lub xam cov qauv no muaj raws li nram no: khees fais fab = Tswv yim Voltage x tawm tswv yim tam sim no (VA), Real fais fab = Tswv yim Voltage x tawm tswv yim tam sim no x Hwj chim tshaj (W).
Ntawm tus taw tes ntawm view ntawm ib puag ncig rau tus phooj ywg, lub fais fab nroj tsuag xav tau kev pab los ua kom muaj ib lub hwj chim uas siab tshaj khees hwj chim nyob rau hauv thiaj li yuav tshee muab hluav taws xob. Qhov tiag pab ntawm hluav taws xob yog txhais los ntawm lub hwj chim. Piv txwv tias yog lub hwj chim zoo tshaj yuav yog 0.5, lub fais fab nroj tsuag xav tau kev pab los tsim ntau tshaj 2WVA kom los siav 1W tiag tiag hwj huam pab. On qhov tsis tooj, Yog hais tias lub hwj chim zoo tshaj yuav yog 0,95, lub fais fab nroj tsuag tsuas xav tau kev pab los ua kom muaj ntau tshaj li 1.06VA los muab 1W lub hwj chim, Nws yuav ua tau zoo tshaj nyob rau hauv lub zog txuag nrog PFC muaj nuj nqi.
Active PFC topologies yuav tau muab faib mus rau hauv ib-theem active PFC thiab ob-theem active PFC, qhov txawv yog qhia raws li nyob rau hauv lub rooj hauv qab no.

PFC topology Advantage disadvantage txwv
 

 

Ib leeg-theem

active PFC

Low cost

Tej yam yooj yim schematic

High efficiency nyob rau hauv

me me

watt daim ntawv thov

Huge Ripple

complex tswv yim

tswj

1.Zero " tuav lub sij hawm " . Lub tso zis yog  affected by the AC input directly.

2.Huge ripple tam sim no tau nyob rau hauv qis LED lub neej voj voog. (Tsav LED ncaj qha)

3.Low dynamic teb, yooj yim cuam tshuam los ntawm load.

 

Ob-theem active PFC

High efficiency

dua PF

Ib qho yooj yim lub tswv yim tswj

High tu tiv thaiv

load mob

 

tus nqi siab

complex schematic

Haum rau tag nrho cov hom siv

Yuav ua li cas yog qhov txawv ntawm -V thiab COM uas cim rau cov qhov tso zis sab?

- COM (cov) txhais tau hais ib qho av. Thov saib hauv qab no:

Tso zis ntau lawm: Positive ncej (+ V), tsis zoo ncej (-V)

Ntau zis (Common av): Zoo ncej (+ V1, + V2), tsis zoo ncej (COM)

Lub tso zis hauv av (GND) thiab ncej hauv av (FG) yog tib yam taw tes nyob rau hauv kuv lub cev, yuav BST khoom siv fais fab yuav siv tau nyob rau hauv xws system?

Yog. Txij li thaum peb cov khoom no yog tsim raws li kev rho tawm tswvyim, nws yuav tsis muaj teeb meem uas cov qhov tso zis hauv av (GND) thiab ncej hauv av (FG) yog tib yam taw tes nyob rau hauv koj lub cev. Tab sis, EMI tej zaum yuav muaj kev cuam tshuam los ntawm no kev twb kev txuas.

Thaum lub sij hawm lub lag luam ntawm koj lub hwj huam mov, muaj ib co to tam sim no nyob rau hauv cov ntaub ntawv. Yog no dab tsi? Yuav no to tam sim no mob tib neeg lub cev?

Vim cov yuav tsum tau EMI, yuav muaj ib co Y capacitors ntawm kab thiab nruab nrab mus rau lub FG (ntaub ntawv) los txhim kho EMC. Cov Y capacitors yuav ua rau ib txhia to tam sim no txaus los ntawm kab los yog nruab nrab rau cov ntaub ntawv (feem ntau cov ntaub ntawv yuav tsum tau txuas rau lub ntiaj teb av). Piv txwv li, IEC-60950-1 yuav tsum tau hais tias qhov no tam sim no yuav tsum muaj tsawg tshaj li 3.5mA rau NWS khoom, yog li yeej lub to tam sim no koj nrhiav tau rau ntawm lub rooj plaub yuav tsis ua mob rau tib neeg lub cev. Kom kev twb kev txuas rau lub ntiaj teb av yuav daws tau qhov to tam sim no qhov teeb meem.

Rau tej kev xav tau, yog nws tau txo lub suab nrov ntawm tus kiv cua?

Suab nrov yog ncaj qha mus txog rau lub kiv cua uas yog muaj rau hauv lub hwj huam mov. Tej lub airflow ntawm tus kiv cua txhais tau tias kom txhob muaj cov tshav kub dissipation muaj peev xwm. Nws yuav pab tau cov ntseeg ntawm cov khoom. Tsis tas li ntawd, yam tsawg kawg nkaus airflow ntawm cov kiv cua yog txhais los ntawm Safety Organization thiab ib tug muaj kev ruaj ntseg appendage yuav tsum tau, yog hais tias siv ib tug tshiab kiv cua. Feem ntau, thaum peb xaiv ib tug haum fais fab mov, kiv cua yog tsis tsim nyog, yog hais tias wattage yog nyob rau hauv 150W. Ntawm 150 ~ 500W, ob leeg kiv cua thiab fanless cov khoom uas muaj nyob. Saum toj no 500W, ib tug kiv cua uas yuav tsum tau.

Yuav ua li cas yog lub warranty ntawm BST cov khoom?

BST kev 2 yeas warranty

Yog hais tias cov khoom muaj zoo teeb meem thaum lub sij hawm warranty lub sij hawm, peb yuav muab cov txij nkawm kev pab cuam; Peb yuav tsis muaj lub luag hauj lwm rau shipping thiab installation nqi uas tsim tawm los ntawm kev installation, siv tsis raws cai los yog kev ua phem rau nrog rau cov chav nyob.

Yog hais tias muaj teeb meem thaum lub sij hawm siv, koj yuav tau hu rau peb dawb do, peb yuav ua peb zoo tshaj plaws los pab nrog koj.

XAV UA HAUJ LWM NROG US?


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