PFC Hom thiab Kev Tshawb Fawb Kev Tshawb Fawb

PFC Hom thiab Kev Tshawb Fawb Kev Tshawb Fawb
1, passive pfc (passive kho)
1. Lub ntsiab cai thiab kev siv
Them nyiaj rau theem hloov tshwm sim los ntawm inductive / capactritive thauj thiab tsim kev puas tsuaj los ntawm kev sib cav sib ceg xws li inductors thiab capacitors. Piv txwv li:
Kev Them Nyiaj Inductance: Txuas lub zog hluav taws xob inductor hauv cheeb tsam ntawm cov neeg siv hluav taws xob thiab cov yam ntxwv tsis txaus ntseeg thiab txo cov mem tes kom du cov tshuaj tam sim no.
Valley sau Circuit: tau txais ib lub capactricit cov qauv sib dhos, nws tso tawm lub zog uas muaj hluav taws xob tsawg, txuas ntxiv lub sijhawm ua haujlwm ntawm lub ntsuas hluav taws xob, thiab txhim kho cov teeb meem tam sim no.
2. Cov yam ntxwv
Lub zog siv hluav taws xob yog nce rau 0. {{{}}. 8, tab sis tsis tuaj yeem tshem tawm kiag li.
Loj loj, tsawg efficiency, tsuas yog haum rau cov xwm txheej qes-hluav taws xob hauv qab 75W.
2, Active PFC (Kev kho mob nquag)
1. Tub ntxhais tseem ceeb
Siv high-zaus hloov cov khoom siv (xws li Mosfets) kom kho tau cov tswv yim tam sim no thiab theem raws li kev txhawb nqa hluav taws xob.
Boost Circuit Qaus: Txhawb cov rectified pulsating dc mus rau lub tsheb ciav hlau loj (xws li siv lub zog ua haujlwm ntawm lub voj voog kom yuam kom cov tam sim no kom ua sinusoidal.
Kev tswj hwm logic: tau txais dual kaw-voj tswj ntawm voltage Voltage thiab tam sim no kev soj ntsuam ntawm voltage thiab tam sim no kom ntseeg tau Waveform txuam.
2. Cov evolvution
Gallium nitride (GAN) Daim ntawv thov: piv txwv li Nano Microlage resistant hloov lub 650V hluav taws xob hloov pauv thiab ua haujlwm ua kom sov li qub xws li cov kws tshaj lij thiab them nyiaj ceev.
Sib koom ua ke thev naus laus zis: Multiphase Pfc sib tshuam txo cov ripple tam sim no thiab kev ua kom zoo dua voltage outciency tau zoo.
3. Qhov Zoo
Power factor>{{0 {}}. 95, Harmonic distortion (THD)<5%.
Txhawb kev tawm tswv yim dav dav (90-264 v), haum rau nruab nrab rau cov khoom siv hluav taws xob muaj zog.
3, lwm cov kev faib tawm thiab cov qauv
1. Ib Leeg Pfc
Kev sib xyaw PFC thiab DC-DC hloov dua siab ua haujlwm, tsuas yog ib qho hloov raj thiab tswj cov qauv tsim, haum rau cov lus teb tsis zoo, haum rau cov nqi qis.
2. Ob Theem PFC
PRANS PUAS BANPEST + PFC: Tshawb xyuas WaveMorm Kev kho, thiab Post Theem DC-DC Kev tswj hwm voltorage, nrog qhov tseeb tab sis complex Circuit Coill.
Cov ntawv thov raug: Cov xwm txheej uas yuav tsum tau nthuav tawm cov lus qhia siab tam sim no, xws li kev kho mob cov khoom siv thiab cov khoom siv hluav taws xob muaj zog.