Kev piav qhia txog kev cuam tshuam sab nraud hauv kev hloov hluav taws xob
Kev cuam tshuam sab nraud los ntawm kev hloov cov khoom siv hluav taws xob tuaj yeem muaj nyob rau hauv "hom hom" lossis "hom txawv". Hom kev cuam tshuam tuaj yeem sib txawv los ntawm lub sijhawm luv luv ntawm kev cuam tshuam los ua kom tiav lub zog poob. Qhov no kuj suav nrog kev hloov pauv voltage, zaus hloov pauv, waveform distortion, tsis muaj suab nrov lossis clutters, thiab ntu ntu.
Lub ntsiab yam tseem ceeb uas yuav kis tau los ntawm cov khoom siv hluav taws xob thiab ua rau muaj kev puas tsuaj rau cov khoom siv lossis cuam tshuam rau nws txoj haujlwm yog cov pab pawg hluav taws xob ceev ceev ceev thiab surge shock yoj. Txawm li cas los xij, tsuav yog cov khoom siv hluav taws xob nws tus kheej tsis tsim kev vibration nres, tso zis hluav taws xob poob, thiab lwm yam tshwm sim, nws yuav tsis ua rau muaj kev cuam tshuam rau cov khoom siv hluav taws xob los ntawm cov khoom siv hluav taws xob.
Kev hloov hluav taws xob hloov hluav taws xob: Lub zog hloov hluav taws xob yog qhov tseem ceeb ntawm kev hloov hluav taws xob tswj hluav taws xob, uas ua rau muaj qhov dav bandwidth thiab nplua nuj harmonics. Lub hauv paus tseem ceeb uas ua kom muaj kev cuam tshuam ntawm cov mem tes no yog:
1) Muaj kev faib tawm ntawm lub raj hloov pauv thiab nws lub dab dej kub, lub plhaub, thiab cov coj hauv lub zog. Thaum lub raj hloov pauv ntws los ntawm cov mem tes loj tam sim no (feem ntau yog ib lub voj voos), lub waveform muaj ntau cov khoom siv ntau zaus; Nyob rau tib lub sijhawm, cov cuab yeej siv tsis tau siv hauv kev hloov pauv hluav taws xob, xws li lub sijhawm khaws cia ntawm lub zog hloov hluav taws xob, qhov loj tam sim no ntawm cov zis theem, thiab lub sijhawm rov qab los ntawm kev hloov pauv rectifier diode, tuaj yeem ua rau lub sijhawm luv luv. nyob rau hauv Circuit Court, tsim ib tug loj luv luv-circuit tam sim no. Tsis tas li ntawd, lub load ntawm lub switching tube yog ib tug high-frequency transformer los yog lub zog cia inductor. Thaum lub sij hawm hloov lub raj conduction, muaj ib tug loj surge tam sim no nyob rau hauv lub transformer thawj, ua rau lub ncov nrov.
2) Lub transformer nyob rau hauv ib tug high-frequency transformer switching fais fab mov yog siv rau kev rho tawm thiab voltage transformation, tab sis vim to inductance, electromagnetic induction suab nrov yuav generated; Nyob rau tib lub sij hawm, nyob rau hauv high-frequency tej yam kev mob, kev faib capacitance ntawm cov khaubncaws sab nraud povtseg ntawm lub transformer yuav xa high-order harmonic suab nrov los ntawm thawj sab mus rau theem nrab, thaum lub faib capacitance ntawm lub transformer mus rau lub plhaub ua lwm yam high-zoo. txoj kev zaus, ua kom yooj yim rau cov electromagnetic teb generated nyob ib ncig ntawm lub transformer rau ob peb thiab ua suab nrov ntawm lwm cov leads.
3) Thaum lub thib ob sab rectifier diode ntawm lub rectifier diode yog siv rau high-frequency rectification, vim yog lub sij hawm rov qab los, tus nqi uas muaj nyob rau hauv pem hauv ntej tam sim no tsis tuaj yeem raug tshem tawm tam sim ntawd thaum rov qab voltage siv (vim yog muaj cov cab kuj thiab tam sim no ntws). Thaum txoj kab nqes ntawm qhov rov qab tam sim no loj dhau lawm, qhov inductance ntws los ntawm lub kauj tsim hluav taws xob siab tshaj plaws, uas yuav ua rau muaj kev cuam tshuam ntau zaus nyob rau hauv kev cuam tshuam ntawm transformer to inductance thiab lwm yam kev faib tawm, nrog rau ntau zaus mus txog kaum. ntawm MHz.
4) Capacitors, inductors, thiab xaim hloov pauv cov khoom siv hluav taws xob tuaj yeem ua rau muaj kev hloov pauv ntawm cov yam ntxwv ntawm cov khoom siv tsawg zaus vim lawv ua haujlwm ntawm ntau zaus, ua rau muaj suab nrov.
