Txhim Kho Sine Wave Inverter: Kawm Txog Thev Naus Laus Zis Tom Qab Nws

Txhim Kho Sine Wave Inverter: Kawm Txog Thev Naus Laus Zis Tom Qab Nws

Nyob rau lub caij nyoog digital niaj hnub no, peb vam khom cov khoom siv hluav taws xob rau peb cov kev xav tau txhua hnub. Txawm yog them lub laptop, khiav cov khoom siv kho mob lossis tsuas yog siv cov khoom siv hauv tsev, lub zog hluav taws xob txhim khu kev qha thiab siv tau zoo yog qhov tseem ceeb. Qhov no yog qhov uas cov inverters los ua si, ib hom yog cov inverter modified sine wave.

A hloov kho sine wave inverteryog ib lub cuab yeej uas hloov lub roj teeb lub zog hluav taws xob mus rau lwm qhov, uas yog qhov yuav tsum tau ua rau feem ntau ntawm cov khoom siv hluav taws xob ua haujlwm. Tsis zoo li lub inverter sine wave ntshiab, uas tsim cov waveform du thiab sib xws, lub inverter sine wave hloov kho tsim cov waveform kauj ruam uas zoo li lub nthwv dej plaub fab nrog cov kauj ruam sib txawv.

Yog li ntawd, vim li cas ho xaiv lub inverter modified sine wave es tsis txhob siv lub inverter pure sine wave? Cov lus teb yog nws tus nqi pheej yig thiab muaj ntau yam siv tau.Cov inverters sine wave hloov khoFeem ntau pheej yig dua li cov inverters ntshiab sine wave, ua rau lawv yog qhov kev xaiv nrov ntawm cov neeg siv khoom uas xav txog nyiaj txiag. Txawm li cas los xij, nws tsim nyog sau tseg tias tsis yog txhua yam khoom siv hluav taws xob sib xws nrog cov inverters hloov kho sine wave.

Qhov zoo tshaj plaws ntawm cov inverters hloov kho sine wave yog lawv lub peev xwm los muab hluav taws xob rau ntau yam khoom siv. Lawv zoo rau kev khiav cov khoom siv yooj yim xws li kiv cua, teeb, thiab cov cuab yeej hluav taws xob. Tsis tas li ntawd, lawv tuaj yeem tswj cov khoom siv resistive, uas yog, cov khoom siv nrog qib kev tiv thaiv ruaj khov, xws li lub teeb incandescent. Yog li ntawd, yog tias koj muaj lub zog thaub qab rau thaum muaj xwm txheej ceev lossis kev mus pw hav zoov, lub inverter hloov kho sine wave yuav zoo tagnrho.

Ib qho ntawm qhov tsis zoo ntawm cov inverters hloov kho sine wave yog lawv qhov sib xws nrog cov khoom siv hluav taws xob rhiab heev. Qee cov khoom siv, xws li laptops, ntsiav tshuaj, thiab qee cov khoom siv kho mob, yuav tsis ua haujlwm zoo thiab tej zaum yuav puas tsuaj thaum txuas nrog lub inverter hloov kho sine wave. Cov khoom siv no xav tau lub sine wave huv si thiab du kom ua haujlwm tau zoo, yog vim li cas lub inverter sine wave ntshiab thiaj li pom zoo rau cov ntawv thov zoo li no.

Yuav kom nkag siab txog cov thev naus laus zis tom qab lub inverter sine wave zoo dua, cia peb khawb tob me ntsis. Cov txheej txheem pib nrog lub zog DC, feem ntau yog lub roj teeb, uas muab lub zog rau lub voj voog pulse-width modulated (PWM). Lub voj voog no tsim cov qauv ntaiv los ntawm kev tig lub zog hluav taws xob sai sai thiab kaw.

Cov waveform uas tshwm sim muaj cov kauj ruam siab thiab qis hloov pauv, tsim cov nthwv dej pseudo-sine. Txawm hais tias nws yuav tsis du zoo li nthwv dej sine ntshiab, nws tseem tuaj yeem xa hluav taws xob txaus los khiav cov khoom siv hluav taws xob yooj yim yam tsis muaj teeb meem loj. Txawm li cas los xij, qee cov khoom siv hluav taws xob rhiab heev yuav muaj kev humming lossis poob kev ua haujlwm thaum txuas nrog lub inverter sine wave hloov kho.

Cov chaw tsim khoom ntawmcov inverters hloov kho sine wavefeem ntau ntxiv cov khoom siv hluav taws xob ntxiv kom txo qhov kev cuam tshuam harmonic thiab txhim kho qhov zoo ntawm cov waveform. Cov khoom no yog tsim los txo qhov cuam tshuam tsis zoo rau cov khoom siv rhiab heev thiab muab kev paub zoo dua rau cov neeg siv. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias txawm tias muaj cov kev txhim kho no, cov nthwv dej sine hloov kho yuav tsis huv thiab sib xws li nthwv dej sine ntshiab.

Hauv kev xaus lus, lub inverter hloov pauv sine wave yog qhov kev daws teeb meem pheej yig thiab siv tau ntau yam los muab hluav taws xob rau ntau yam khoom siv hluav taws xob. Nws muab hluav taws xob txaus los khiav cov khoom siv yooj yim thiab cov khoom siv resistive. Txawm li cas los xij, vim yog cov qauv ntaiv uas nws tsim tawm, nws yuav tsis haum rau cov khoom siv hluav taws xob rhiab heev. Ua ntej xaiv ntawm lub inverter hloov pauv sine wave thiab lub inverter sine wave ntshiab, nws yog ib qho tseem ceeb kom nkag siab txog cov kev xav tau tshwj xeeb ntawm cov khoom siv.